/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:04:50,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:04:50,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:04:50,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:04:50,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:04:50,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:04:50,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:04:50,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:04:50,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:04:50,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:04:50,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:04:50,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:04:50,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:04:50,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:04:50,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:04:50,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:04:50,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:04:50,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:04:50,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:04:50,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:04:50,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:04:50,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:04:50,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:04:50,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:04:50,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:04:50,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:04:50,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:04:50,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:04:50,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:04:50,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:04:50,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:04:50,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:04:50,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:04:50,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:04:50,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:04:50,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:04:50,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:04:50,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:04:50,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:04:50,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:04:50,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:04:50,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 14:04:50,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:04:50,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:04:50,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:04:50,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:04:50,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:04:50,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:04:50,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:04:50,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:04:50,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:04:50,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:04:50,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:04:50,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:04:50,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:04:50,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:04:50,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:04:50,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:04:50,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:04:50,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:04:50,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:04:50,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:04:50,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:04:50,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:04:50,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:04:50,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:04:50,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:04:50,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:04:50,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:04:50,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:04:50,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:04:50,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:04:51,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:04:51,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:04:51,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:04:51,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:04:51,183 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:04:51,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label58.c [2020-10-12 14:04:51,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9ca5a465/843390defa0442198f1e8b75758aac7b/FLAG4fad5be64 [2020-10-12 14:04:51,879 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:04:51,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label58.c [2020-10-12 14:04:51,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9ca5a465/843390defa0442198f1e8b75758aac7b/FLAG4fad5be64 [2020-10-12 14:04:52,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9ca5a465/843390defa0442198f1e8b75758aac7b [2020-10-12 14:04:52,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:04:52,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:04:52,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:04:52,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:04:52,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:04:52,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:04:52" (1/1) ... [2020-10-12 14:04:52,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9dbf34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:52, skipping insertion in model container [2020-10-12 14:04:52,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:04:52" (1/1) ... [2020-10-12 14:04:52,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:04:52,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:04:52,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:04:52,857 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:04:53,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:04:53,024 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:04:53,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53 WrapperNode [2020-10-12 14:04:53,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:04:53,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:04:53,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:04:53,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:04:53,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... [2020-10-12 14:04:53,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:04:53,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:04:53,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:04:53,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:04:53,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:04:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:04:53,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:04:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:04:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:04:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:04:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:04:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:04:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:04:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:04:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:04:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:04:54,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:04:54,715 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:04:54,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:04:54 BoogieIcfgContainer [2020-10-12 14:04:54,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:04:54,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:04:54,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:04:54,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:04:54,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:04:52" (1/3) ... [2020-10-12 14:04:54,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2c04ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:04:54, skipping insertion in model container [2020-10-12 14:04:54,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:04:53" (2/3) ... [2020-10-12 14:04:54,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2c04ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:04:54, skipping insertion in model container [2020-10-12 14:04:54,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:04:54" (3/3) ... [2020-10-12 14:04:54,732 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label58.c [2020-10-12 14:04:54,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:04:54,755 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:04:54,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:04:54,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:04:54,806 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:04:54,806 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:04:54,807 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:04:54,807 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:04:54,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:04:54,811 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:04:54,811 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:04:54,839 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-12 14:04:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-12 14:04:54,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:54,848 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] [2020-10-12 14:04:54,848 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:54,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1699451235, now seen corresponding path program 1 times [2020-10-12 14:04:54,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:54,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022307748] [2020-10-12 14:04:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:55,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-12 14:04:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-12 14:04:55,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:55,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 14:04:55,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:04:55,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:55,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:55,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:55,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:55,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:04:55,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:55,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:04:55,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022307748] [2020-10-12 14:04:55,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:04:55,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:04:55,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742743856] [2020-10-12 14:04:55,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:04:55,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:55,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:04:55,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:04:55,557 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-12 14:04:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:04:57,290 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-12 14:04:57,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:04:57,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-12 14:04:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:04:57,311 INFO L225 Difference]: With dead ends: 698 [2020-10-12 14:04:57,311 INFO L226 Difference]: Without dead ends: 380 [2020-10-12 14:04:57,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:04:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-12 14:04:57,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-12 14:04:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-12 14:04:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-12 14:04:57,399 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 20 [2020-10-12 14:04:57,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:04:57,399 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-12 14:04:57,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:04:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-12 14:04:57,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-12 14:04:57,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:04:57,404 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:04:57,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:04:57,404 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:04:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:04:57,405 INFO L82 PathProgramCache]: Analyzing trace with hash -288682451, now seen corresponding path program 1 times [2020-10-12 14:04:57,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:04:57,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064173567] [2020-10-12 14:04:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:04:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:57,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:57,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 14:04:58,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:04:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 700 [2020-10-12 14:04:58,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:04:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:04:58,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:04:58,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:04:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:04:58,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:04:58,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:04:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:04:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:04:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:04:58,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:04:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:04:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:04:58,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:04:58,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:04:58,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:04:58,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-12 14:04:58,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:04:58,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:04:58,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:04:58,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 14:04:58,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:04:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:04:58,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064173567] [2020-10-12 14:04:58,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:04:58,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 14:04:58,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630819358] [2020-10-12 14:04:58,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:04:58,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:04:58,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:04:58,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:04:58,437 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 8 states. [2020-10-12 14:05:01,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:01,145 INFO L93 Difference]: Finished difference Result 1504 states and 2262 transitions. [2020-10-12 14:05:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:05:01,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-12 14:05:01,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:01,166 INFO L225 Difference]: With dead ends: 1504 [2020-10-12 14:05:01,166 INFO L226 Difference]: Without dead ends: 1134 [2020-10-12 14:05:01,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:05:01,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-10-12 14:05:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1122. [2020-10-12 14:05:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1122 states. [2020-10-12 14:05:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1578 transitions. [2020-10-12 14:05:01,244 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1578 transitions. Word has length 89 [2020-10-12 14:05:01,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:01,245 INFO L479 AbstractCegarLoop]: Abstraction has 1122 states and 1578 transitions. [2020-10-12 14:05:01,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:05:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1578 transitions. [2020-10-12 14:05:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-12 14:05:01,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:01,258 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:01,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:05:01,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:01,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:01,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1743707942, now seen corresponding path program 1 times [2020-10-12 14:05:01,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:01,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075952067] [2020-10-12 14:05:01,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:01,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:01,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:02,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:03,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:03,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:05:03,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:05:03,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2685 [2020-10-12 14:05:03,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:03,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:05:03,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-12 14:05:03,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 14:05:03,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:04,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:04,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:04,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:04,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:04,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:04,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:04,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:04,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:04,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:04,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:04,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:05:04,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:04,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:05:04,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:04,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 14:05:04,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 14:05:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:04,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:04,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 14:05:04,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-12 14:05:04,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:05:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 14:05:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 80 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:05:04,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075952067] [2020-10-12 14:05:04,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:04,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:05:04,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274472877] [2020-10-12 14:05:04,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:05:04,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:04,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:05:04,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:05:04,439 INFO L87 Difference]: Start difference. First operand 1122 states and 1578 transitions. Second operand 6 states. [2020-10-12 14:05:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:06,081 INFO L93 Difference]: Finished difference Result 2828 states and 4132 transitions. [2020-10-12 14:05:06,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:05:06,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-10-12 14:05:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:06,098 INFO L225 Difference]: With dead ends: 2828 [2020-10-12 14:05:06,098 INFO L226 Difference]: Without dead ends: 1712 [2020-10-12 14:05:06,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:05:06,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2020-10-12 14:05:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1504. [2020-10-12 14:05:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2020-10-12 14:05:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1995 transitions. [2020-10-12 14:05:06,175 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1995 transitions. Word has length 171 [2020-10-12 14:05:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:06,177 INFO L479 AbstractCegarLoop]: Abstraction has 1504 states and 1995 transitions. [2020-10-12 14:05:06,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:05:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1995 transitions. [2020-10-12 14:05:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-12 14:05:06,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:06,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:06,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:05:06,201 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:06,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:06,201 INFO L82 PathProgramCache]: Analyzing trace with hash -929683566, now seen corresponding path program 1 times [2020-10-12 14:05:06,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:06,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860439029] [2020-10-12 14:05:06,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:06,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:06,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:07,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:08,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:08,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 14:05:08,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:05:08,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2701 [2020-10-12 14:05:08,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:05:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:05:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:05:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:08,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:08,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:08,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:08,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:08,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:05:08,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:08,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:05:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:08,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:09,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:09,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:09,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:05:09,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:05:09,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:05:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:05:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:09,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 14:05:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:09,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:09,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:09,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:05:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:05:09,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:05:09,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 26 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-12 14:05:09,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860439029] [2020-10-12 14:05:09,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:09,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:05:09,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296763926] [2020-10-12 14:05:09,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:05:09,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:09,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:05:09,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:05:09,237 INFO L87 Difference]: Start difference. First operand 1504 states and 1995 transitions. Second operand 7 states. [2020-10-12 14:05:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:11,188 INFO L93 Difference]: Finished difference Result 3594 states and 4733 transitions. [2020-10-12 14:05:11,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:05:11,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-12 14:05:11,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:11,204 INFO L225 Difference]: With dead ends: 3594 [2020-10-12 14:05:11,205 INFO L226 Difference]: Without dead ends: 2096 [2020-10-12 14:05:11,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:05:11,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2020-10-12 14:05:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1884. [2020-10-12 14:05:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1884 states. [2020-10-12 14:05:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2427 transitions. [2020-10-12 14:05:11,269 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2427 transitions. Word has length 175 [2020-10-12 14:05:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:11,269 INFO L479 AbstractCegarLoop]: Abstraction has 1884 states and 2427 transitions. [2020-10-12 14:05:11,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:05:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2427 transitions. [2020-10-12 14:05:11,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-12 14:05:11,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:11,273 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:11,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:05:11,273 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:11,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1650524207, now seen corresponding path program 1 times [2020-10-12 14:05:11,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:11,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106205071] [2020-10-12 14:05:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:11,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:11,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:11,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:12,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-12 14:05:14,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:05:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3554 [2020-10-12 14:05:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:05:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-12 14:05:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 14:05:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:14,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:14,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:14,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:14,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:14,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:14,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:05:14,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:14,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:14,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:15,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:15,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-12 14:05:15,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:05:15,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:15,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:15,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:15,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 14:05:15,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:15,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 14:05:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:15,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:15,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:15,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:15,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:05:15,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-12 14:05:15,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:05:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:05:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:15,638 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-12 14:05:15,785 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 14:05:15,923 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-12 14:05:16,263 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:05:16,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106205071] [2020-10-12 14:05:16,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:16,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:05:16,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018316747] [2020-10-12 14:05:16,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:05:16,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:16,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:05:16,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:05:16,267 INFO L87 Difference]: Start difference. First operand 1884 states and 2427 transitions. Second operand 10 states. [2020-10-12 14:05:17,776 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2020-10-12 14:05:18,311 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-12 14:05:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:19,200 INFO L93 Difference]: Finished difference Result 3543 states and 4627 transitions. [2020-10-12 14:05:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 14:05:19,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-10-12 14:05:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:19,211 INFO L225 Difference]: With dead ends: 3543 [2020-10-12 14:05:19,212 INFO L226 Difference]: Without dead ends: 1939 [2020-10-12 14:05:19,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-10-12 14:05:19,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-10-12 14:05:19,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1882. [2020-10-12 14:05:19,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-10-12 14:05:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2108 transitions. [2020-10-12 14:05:19,269 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2108 transitions. Word has length 176 [2020-10-12 14:05:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:19,270 INFO L479 AbstractCegarLoop]: Abstraction has 1882 states and 2108 transitions. [2020-10-12 14:05:19,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:05:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2108 transitions. [2020-10-12 14:05:19,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-12 14:05:19,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:19,276 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:19,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:05:19,276 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:19,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1813261351, now seen corresponding path program 1 times [2020-10-12 14:05:19,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:19,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094818568] [2020-10-12 14:05:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:19,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:19,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:22,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:24,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:24,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-12 14:05:24,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:05:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 14:05:24,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-12 14:05:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-12 14:05:24,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:24,575 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-12 14:05:24,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:24,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:24,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:24,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:24,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:24,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:05:24,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:24,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:24,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:24,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:05:24,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:24,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-12 14:05:24,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:24,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 14:05:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:24,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 14:05:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:24,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:25,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:25,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:25,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:25,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 929 [2020-10-12 14:05:25,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:25,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:05:25,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:26,714 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-12 14:05:26,974 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-10-12 14:05:27,133 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2020-10-12 14:05:27,315 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-12 14:05:27,511 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-12 14:05:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:05:28,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094818568] [2020-10-12 14:05:28,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:28,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:28,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301451700] [2020-10-12 14:05:28,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:28,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:28,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:28,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:28,502 INFO L87 Difference]: Start difference. First operand 1882 states and 2108 transitions. Second operand 13 states. [2020-10-12 14:05:29,003 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-12 14:05:29,192 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-12 14:05:29,490 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-12 14:05:29,676 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-12 14:05:30,012 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-12 14:05:30,482 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-10-12 14:05:30,773 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2020-10-12 14:05:31,236 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-12 14:05:31,463 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-10-12 14:05:31,809 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2020-10-12 14:05:32,076 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-12 14:05:32,385 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2020-10-12 14:05:32,655 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2020-10-12 14:05:32,908 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2020-10-12 14:05:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:33,301 INFO L93 Difference]: Finished difference Result 3596 states and 4073 transitions. [2020-10-12 14:05:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:05:33,302 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 332 [2020-10-12 14:05:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:33,312 INFO L225 Difference]: With dead ends: 3596 [2020-10-12 14:05:33,312 INFO L226 Difference]: Without dead ends: 1898 [2020-10-12 14:05:33,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=269, Invalid=661, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:05:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-10-12 14:05:33,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1880. [2020-10-12 14:05:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1880 states. [2020-10-12 14:05:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2085 transitions. [2020-10-12 14:05:33,369 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2085 transitions. Word has length 332 [2020-10-12 14:05:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:33,370 INFO L479 AbstractCegarLoop]: Abstraction has 1880 states and 2085 transitions. [2020-10-12 14:05:33,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:05:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2085 transitions. [2020-10-12 14:05:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-10-12 14:05:33,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:33,383 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:33,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:05:33,383 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:33,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:33,384 INFO L82 PathProgramCache]: Analyzing trace with hash 881999575, now seen corresponding path program 1 times [2020-10-12 14:05:33,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:33,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949009289] [2020-10-12 14:05:33,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:33,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:33,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:34,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 544 [2020-10-12 14:05:38,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:05:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 14:05:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-12 14:05:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:05:38,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:38,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:38,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:38,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:38,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:05:38,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:38,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:38,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:38,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:38,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:38,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:05:38,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:38,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:38,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:38,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:38,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:38,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:05:38,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:38,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:38,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:38,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:39,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:39,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-12 14:05:39,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:39,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:05:39,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:39,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-12 14:05:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:39,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:39,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:39,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:39,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:39,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 763 [2020-10-12 14:05:39,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:39,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:39,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:05:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:40,307 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-10-12 14:05:40,474 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2020-10-12 14:05:40,669 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-10-12 14:05:40,892 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-10-12 14:05:41,125 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-12 14:05:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 382 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:05:42,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949009289] [2020-10-12 14:05:42,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:42,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:42,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073725155] [2020-10-12 14:05:42,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:42,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:42,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:42,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:42,551 INFO L87 Difference]: Start difference. First operand 1880 states and 2085 transitions. Second operand 13 states. [2020-10-12 14:05:43,218 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-12 14:05:43,369 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-12 14:05:43,613 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-12 14:05:43,793 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 14:05:44,388 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-10-12 14:05:44,874 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-10-12 14:05:45,363 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-10-12 14:05:45,557 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 14:05:45,850 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2020-10-12 14:05:46,108 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2020-10-12 14:05:46,483 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-10-12 14:05:46,864 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2020-10-12 14:05:47,176 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-10-12 14:05:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:05:47,591 INFO L93 Difference]: Finished difference Result 3770 states and 4202 transitions. [2020-10-12 14:05:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:05:47,595 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 528 [2020-10-12 14:05:47,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:05:47,603 INFO L225 Difference]: With dead ends: 3770 [2020-10-12 14:05:47,604 INFO L226 Difference]: Without dead ends: 1928 [2020-10-12 14:05:47,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:05:47,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2020-10-12 14:05:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1805. [2020-10-12 14:05:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1805 states. [2020-10-12 14:05:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2007 transitions. [2020-10-12 14:05:47,652 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2007 transitions. Word has length 528 [2020-10-12 14:05:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:05:47,653 INFO L479 AbstractCegarLoop]: Abstraction has 1805 states and 2007 transitions. [2020-10-12 14:05:47,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:05:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2007 transitions. [2020-10-12 14:05:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-10-12 14:05:47,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:05:47,666 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:05:47,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:05:47,667 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:05:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:05:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash 2034135054, now seen corresponding path program 1 times [2020-10-12 14:05:47,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:05:47,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536955592] [2020-10-12 14:05:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:05:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:47,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:47,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:48,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:49,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:52,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:52,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 551 [2020-10-12 14:05:52,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:05:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4911 [2020-10-12 14:05:52,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:05:52,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-12 14:05:52,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-12 14:05:52,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:52,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:05:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:52,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:52,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:52,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:05:52,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:52,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:05:52,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:52,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:52,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:52,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:05:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:52,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:52,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:05:52,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:05:52,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:05:52,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:05:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:52,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:52,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:05:52,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:05:52,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:05:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:05:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:52,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:05:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:53,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:53,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:53,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:05:53,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:05:53,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 14:05:53,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:53,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:05:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:05:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 14:05:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:53,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:05:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:05:53,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:53,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:05:53,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:05:53,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:05:53,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:05:53,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-12 14:05:53,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:05:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:05:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:05:53,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:05:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:05:54,274 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-12 14:05:54,481 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-12 14:05:54,724 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-10-12 14:05:54,985 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2020-10-12 14:05:55,275 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-10-12 14:05:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 389 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:05:57,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536955592] [2020-10-12 14:05:57,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:05:57,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:05:57,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595190059] [2020-10-12 14:05:57,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:05:57,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:05:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:05:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:05:57,307 INFO L87 Difference]: Start difference. First operand 1805 states and 2007 transitions. Second operand 13 states. [2020-10-12 14:05:58,012 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2020-10-12 14:05:58,530 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2020-10-12 14:05:58,801 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2020-10-12 14:05:59,000 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2020-10-12 14:05:59,240 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2020-10-12 14:05:59,491 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2020-10-12 14:05:59,787 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 52 [2020-10-12 14:06:00,628 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2020-10-12 14:06:01,165 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2020-10-12 14:06:01,471 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 59 [2020-10-12 14:06:01,703 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2020-10-12 14:06:01,971 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2020-10-12 14:06:02,228 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 59 [2020-10-12 14:06:02,580 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2020-10-12 14:06:02,926 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2020-10-12 14:06:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:03,257 INFO L93 Difference]: Finished difference Result 3616 states and 4049 transitions. [2020-10-12 14:06:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:06:03,257 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 535 [2020-10-12 14:06:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:03,266 INFO L225 Difference]: With dead ends: 3616 [2020-10-12 14:06:03,266 INFO L226 Difference]: Without dead ends: 1976 [2020-10-12 14:06:03,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:06:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2020-10-12 14:06:03,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1966. [2020-10-12 14:06:03,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-10-12 14:06:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2176 transitions. [2020-10-12 14:06:03,313 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2176 transitions. Word has length 535 [2020-10-12 14:06:03,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:03,314 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 2176 transitions. [2020-10-12 14:06:03,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:06:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2176 transitions. [2020-10-12 14:06:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2020-10-12 14:06:03,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:03,321 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:03,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:06:03,321 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:03,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:03,322 INFO L82 PathProgramCache]: Analyzing trace with hash -201631162, now seen corresponding path program 1 times [2020-10-12 14:06:03,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:03,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712904773] [2020-10-12 14:06:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:03,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:04,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:04,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:05,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:08,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:08,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 611 [2020-10-12 14:06:08,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:06:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 14:06:08,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:06:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 410 [2020-10-12 14:06:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-12 14:06:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:08,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:08,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:08,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:08,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:08,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:06:08,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:08,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:08,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:08,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:08,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:08,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:08,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:08,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:08,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:06:08,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:08,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:08,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:08,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:08,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:08,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:06:08,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 14:06:08,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:08,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:06:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:08,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:09,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:09,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:09,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:09,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:09,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-10-12 14:06:09,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:06:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:06:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:10,155 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-10-12 14:06:10,333 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-10-12 14:06:10,513 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-12 14:06:10,708 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-10-12 14:06:10,902 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-10-12 14:06:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 776 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-12 14:06:12,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712904773] [2020-10-12 14:06:12,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:12,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:12,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305608925] [2020-10-12 14:06:12,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:12,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:12,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:12,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:12,334 INFO L87 Difference]: Start difference. First operand 1966 states and 2176 transitions. Second operand 13 states. [2020-10-12 14:06:12,925 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-10-12 14:06:13,135 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-12 14:06:13,405 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-12 14:06:13,611 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 14:06:14,002 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 14:06:14,337 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-12 14:06:14,728 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-10-12 14:06:15,515 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2020-10-12 14:06:15,762 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-10-12 14:06:16,045 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-12 14:06:16,276 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-12 14:06:16,685 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-12 14:06:17,025 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2020-10-12 14:06:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:17,520 INFO L93 Difference]: Finished difference Result 3746 states and 4167 transitions. [2020-10-12 14:06:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:06:17,521 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 595 [2020-10-12 14:06:17,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:17,529 INFO L225 Difference]: With dead ends: 3746 [2020-10-12 14:06:17,529 INFO L226 Difference]: Without dead ends: 1862 [2020-10-12 14:06:17,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:06:17,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2020-10-12 14:06:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1856. [2020-10-12 14:06:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1856 states. [2020-10-12 14:06:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2050 transitions. [2020-10-12 14:06:17,579 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2050 transitions. Word has length 595 [2020-10-12 14:06:17,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:17,581 INFO L479 AbstractCegarLoop]: Abstraction has 1856 states and 2050 transitions. [2020-10-12 14:06:17,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:06:17,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2050 transitions. [2020-10-12 14:06:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2020-10-12 14:06:17,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:17,590 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:17,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:06:17,590 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:17,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1462277310, now seen corresponding path program 1 times [2020-10-12 14:06:17,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:17,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829746305] [2020-10-12 14:06:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:17,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:17,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:19,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:19,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 634 [2020-10-12 14:06:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:06:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 14:06:22,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:06:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 433 [2020-10-12 14:06:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:06:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:22,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:22,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:22,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:22,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:22,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:06:22,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:22,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:22,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:22,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:22,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:22,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:06:22,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:22,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:22,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:22,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:22,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:22,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:22,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:22,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:06:22,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:22,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:22,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:06:23,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:23,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:06:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:23,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:06:23,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:23,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:06:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:24,486 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-10-12 14:06:24,757 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2020-10-12 14:06:25,044 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 79 [2020-10-12 14:06:25,335 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2020-10-12 14:06:25,653 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-12 14:06:25,963 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 80 [2020-10-12 14:06:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 485 proven. 2 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-10-12 14:06:28,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829746305] [2020-10-12 14:06:28,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:28,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:28,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112201963] [2020-10-12 14:06:28,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:28,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:28,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:28,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:28,562 INFO L87 Difference]: Start difference. First operand 1856 states and 2050 transitions. Second operand 13 states. [2020-10-12 14:06:29,311 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-10-12 14:06:29,782 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2020-10-12 14:06:30,093 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-10-12 14:06:30,294 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-10-12 14:06:30,519 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-12 14:06:30,999 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2020-10-12 14:06:31,283 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2020-10-12 14:06:31,639 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 53 [2020-10-12 14:06:31,860 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-12 14:06:32,576 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2020-10-12 14:06:33,099 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 60 [2020-10-12 14:06:33,323 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2020-10-12 14:06:33,570 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 60 [2020-10-12 14:06:34,092 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 61 [2020-10-12 14:06:34,392 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 65 [2020-10-12 14:06:34,726 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 14:06:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:34,936 INFO L93 Difference]: Finished difference Result 3718 states and 4126 transitions. [2020-10-12 14:06:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:06:34,943 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 616 [2020-10-12 14:06:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:34,951 INFO L225 Difference]: With dead ends: 3718 [2020-10-12 14:06:34,951 INFO L226 Difference]: Without dead ends: 2045 [2020-10-12 14:06:34,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:06:34,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2020-10-12 14:06:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2033. [2020-10-12 14:06:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2033 states. [2020-10-12 14:06:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2229 transitions. [2020-10-12 14:06:34,997 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2229 transitions. Word has length 616 [2020-10-12 14:06:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:34,999 INFO L479 AbstractCegarLoop]: Abstraction has 2033 states and 2229 transitions. [2020-10-12 14:06:34,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:06:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2229 transitions. [2020-10-12 14:06:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2020-10-12 14:06:35,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:35,007 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:35,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:06:35,007 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:35,008 INFO L82 PathProgramCache]: Analyzing trace with hash -925814225, now seen corresponding path program 1 times [2020-10-12 14:06:35,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:35,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289851449] [2020-10-12 14:06:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:35,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:35,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:36,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:39,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:39,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 689 [2020-10-12 14:06:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:06:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4142 [2020-10-12 14:06:39,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:06:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-12 14:06:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-12 14:06:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:39,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:39,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:39,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:39,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:39,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:06:39,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:06:39,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:39,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:39,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:39,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:39,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:06:39,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:39,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:06:39,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:39,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:39,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:39,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:39,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-12 14:06:39,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:39,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-12 14:06:39,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:39,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:39,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:39,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:40,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:06:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-12 14:06:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:06:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-12 14:06:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:40,517 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-10-12 14:06:40,686 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-12 14:06:40,876 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-12 14:06:41,053 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-12 14:06:41,246 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-10-12 14:06:41,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-12 14:06:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:41,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:06:41,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:41,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:06:41,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 14:06:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-12 14:06:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:41,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:41,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:41,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:41,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:06:41,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-12 14:06:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 299 proven. 249 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-12 14:06:42,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289851449] [2020-10-12 14:06:42,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:42,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:42,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754991639] [2020-10-12 14:06:42,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:42,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:42,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:42,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:42,882 INFO L87 Difference]: Start difference. First operand 2033 states and 2229 transitions. Second operand 13 states. [2020-10-12 14:06:43,835 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:06:44,027 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-12 14:06:44,403 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-12 14:06:44,768 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-10-12 14:06:45,153 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2020-10-12 14:06:45,647 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-12 14:06:46,350 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2020-10-12 14:06:47,538 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-10-12 14:06:47,743 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2020-10-12 14:06:48,098 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2020-10-12 14:06:48,454 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2020-10-12 14:06:48,816 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2020-10-12 14:06:49,315 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 66 [2020-10-12 14:06:49,650 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-10-12 14:06:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:06:50,170 INFO L93 Difference]: Finished difference Result 4068 states and 4473 transitions. [2020-10-12 14:06:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 14:06:50,170 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 671 [2020-10-12 14:06:50,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:06:50,178 INFO L225 Difference]: With dead ends: 4068 [2020-10-12 14:06:50,179 INFO L226 Difference]: Without dead ends: 2158 [2020-10-12 14:06:50,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=252, Invalid=678, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:06:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2020-10-12 14:06:50,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2148. [2020-10-12 14:06:50,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2148 states. [2020-10-12 14:06:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2345 transitions. [2020-10-12 14:06:50,229 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2345 transitions. Word has length 671 [2020-10-12 14:06:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:06:50,229 INFO L479 AbstractCegarLoop]: Abstraction has 2148 states and 2345 transitions. [2020-10-12 14:06:50,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:06:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2345 transitions. [2020-10-12 14:06:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-10-12 14:06:50,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:06:50,237 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:06:50,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:06:50,238 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:06:50,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:06:50,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1770172094, now seen corresponding path program 1 times [2020-10-12 14:06:50,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:06:50,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019933098] [2020-10-12 14:06:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:06:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:50,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:51,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:53,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:53,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 712 [2020-10-12 14:06:53,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:06:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3503 [2020-10-12 14:06:53,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:06:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-12 14:06:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 14:06:53,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:06:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:06:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:54,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:54,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:06:54,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:54,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:06:54,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:54,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:54,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:54,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:54,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:54,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:06:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:54,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:54,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:54,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:06:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:54,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:06:54,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:06:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:54,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:06:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:54,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:54,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 14:06:54,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:06:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:06:54,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:06:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:06:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-12 14:06:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:54,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-12 14:06:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:06:54,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:06:54,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:06:54,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:06:54,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:06:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-10-12 14:06:54,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:06:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:06:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:06:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:06:54,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:06:55,443 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-10-12 14:06:55,697 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2020-10-12 14:06:55,987 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-12 14:06:56,278 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2020-10-12 14:06:56,584 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2020-10-12 14:06:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 563 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-12 14:06:58,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019933098] [2020-10-12 14:06:58,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:06:58,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:06:58,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069336124] [2020-10-12 14:06:58,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:06:58,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:06:58,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:06:58,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:06:58,981 INFO L87 Difference]: Start difference. First operand 2148 states and 2345 transitions. Second operand 13 states. [2020-10-12 14:06:59,702 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2020-10-12 14:07:00,372 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-12 14:07:00,731 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 79 [2020-10-12 14:07:01,100 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 81 [2020-10-12 14:07:01,571 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2020-10-12 14:07:02,050 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 100 [2020-10-12 14:07:02,397 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 62 [2020-10-12 14:07:02,589 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-10-12 14:07:03,213 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-10-12 14:07:03,847 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 58 [2020-10-12 14:07:04,148 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2020-10-12 14:07:04,459 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2020-10-12 14:07:04,927 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2020-10-12 14:07:05,347 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 74 [2020-10-12 14:07:05,963 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2020-10-12 14:07:06,548 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2020-10-12 14:07:06,866 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2020-10-12 14:07:06,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:06,870 INFO L93 Difference]: Finished difference Result 4294 states and 4701 transitions. [2020-10-12 14:07:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-12 14:07:06,871 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 694 [2020-10-12 14:07:06,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:06,879 INFO L225 Difference]: With dead ends: 4294 [2020-10-12 14:07:06,879 INFO L226 Difference]: Without dead ends: 2325 [2020-10-12 14:07:06,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2020-10-12 14:07:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2020-10-12 14:07:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2319. [2020-10-12 14:07:06,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2319 states. [2020-10-12 14:07:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 2517 transitions. [2020-10-12 14:07:06,934 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 2517 transitions. Word has length 694 [2020-10-12 14:07:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:06,935 INFO L479 AbstractCegarLoop]: Abstraction has 2319 states and 2517 transitions. [2020-10-12 14:07:06,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:07:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 2517 transitions. [2020-10-12 14:07:06,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2020-10-12 14:07:06,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:06,946 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:06,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:07:06,946 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:06,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:06,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1324106039, now seen corresponding path program 1 times [2020-10-12 14:07:06,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:06,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119012028] [2020-10-12 14:07:06,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:07,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 891 [2020-10-12 14:07:08,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-10-12 14:07:08,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:07:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 14:07:08,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:08,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:08,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:08,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:08,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:07:08,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:07:08,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:08,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:08,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:08,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:08,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:08,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:08,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:08,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:08,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 14:07:08,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:07:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2129 backedges. 102 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-12 14:07:08,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119012028] [2020-10-12 14:07:08,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:08,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:07:08,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220477698] [2020-10-12 14:07:08,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:07:08,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:08,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:07:08,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:07:08,810 INFO L87 Difference]: Start difference. First operand 2319 states and 2517 transitions. Second operand 5 states. [2020-10-12 14:07:10,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:10,067 INFO L93 Difference]: Finished difference Result 5006 states and 5598 transitions. [2020-10-12 14:07:10,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:07:10,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 869 [2020-10-12 14:07:10,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:10,078 INFO L225 Difference]: With dead ends: 5006 [2020-10-12 14:07:10,078 INFO L226 Difference]: Without dead ends: 2877 [2020-10-12 14:07:10,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:07:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2020-10-12 14:07:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2877. [2020-10-12 14:07:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2877 states. [2020-10-12 14:07:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 3232 transitions. [2020-10-12 14:07:10,137 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 3232 transitions. Word has length 869 [2020-10-12 14:07:10,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:10,138 INFO L479 AbstractCegarLoop]: Abstraction has 2877 states and 3232 transitions. [2020-10-12 14:07:10,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:07:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 3232 transitions. [2020-10-12 14:07:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2020-10-12 14:07:10,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:10,151 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:10,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:07:10,152 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:10,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:10,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1443305946, now seen corresponding path program 1 times [2020-10-12 14:07:10,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:10,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040310468] [2020-10-12 14:07:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:13,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 973 [2020-10-12 14:07:14,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:07:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3892 [2020-10-12 14:07:14,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:07:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:07:14,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 282 [2020-10-12 14:07:14,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:14,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:07:14,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:14,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:07:14,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:14,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:07:14,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:14,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:07:14,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:14,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:14,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:14,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:07:14,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:14,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:14,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:14,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:07:14,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:07:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:14,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:14,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:14,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:07:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:15,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:15,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:15,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 14:07:15,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:07:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:07:15,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-12 14:07:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2698 backedges. 1223 proven. 32 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2020-10-12 14:07:15,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040310468] [2020-10-12 14:07:15,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:15,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:07:15,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574917319] [2020-10-12 14:07:15,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:07:15,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:15,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:07:15,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:07:15,635 INFO L87 Difference]: Start difference. First operand 2877 states and 3232 transitions. Second operand 9 states. [2020-10-12 14:07:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:18,482 INFO L93 Difference]: Finished difference Result 6704 states and 7838 transitions. [2020-10-12 14:07:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 14:07:18,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 949 [2020-10-12 14:07:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:18,500 INFO L225 Difference]: With dead ends: 6704 [2020-10-12 14:07:18,500 INFO L226 Difference]: Without dead ends: 4017 [2020-10-12 14:07:18,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-10-12 14:07:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2020-10-12 14:07:18,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 4005. [2020-10-12 14:07:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4005 states. [2020-10-12 14:07:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4005 states to 4005 states and 4730 transitions. [2020-10-12 14:07:18,591 INFO L78 Accepts]: Start accepts. Automaton has 4005 states and 4730 transitions. Word has length 949 [2020-10-12 14:07:18,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:18,592 INFO L479 AbstractCegarLoop]: Abstraction has 4005 states and 4730 transitions. [2020-10-12 14:07:18,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:07:18,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4005 states and 4730 transitions. [2020-10-12 14:07:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2020-10-12 14:07:18,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:18,606 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:18,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:07:18,606 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:18,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:18,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1209792739, now seen corresponding path program 1 times [2020-10-12 14:07:18,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:18,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303007041] [2020-10-12 14:07:18,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:18,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:19,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:20,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 976 [2020-10-12 14:07:23,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:07:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4447 [2020-10-12 14:07:23,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-12 14:07:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 14:07:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:23,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:07:23,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:23,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:07:23,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:23,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:23,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:23,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:07:23,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:23,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:23,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:23,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 14:07:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:23,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:23,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:07:23,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:23,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:24,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:24,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:07:24,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:07:24,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:07:24,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 117 proven. 8 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 14:07:24,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303007041] [2020-10-12 14:07:24,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:24,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:07:24,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025796492] [2020-10-12 14:07:24,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:07:24,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:24,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:07:24,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:07:24,471 INFO L87 Difference]: Start difference. First operand 4005 states and 4730 transitions. Second operand 5 states. [2020-10-12 14:07:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:25,850 INFO L93 Difference]: Finished difference Result 8556 states and 10319 transitions. [2020-10-12 14:07:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:07:25,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 952 [2020-10-12 14:07:25,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:25,865 INFO L225 Difference]: With dead ends: 8556 [2020-10-12 14:07:25,866 INFO L226 Difference]: Without dead ends: 4741 [2020-10-12 14:07:25,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:07:25,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4741 states. [2020-10-12 14:07:25,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4741 to 3997. [2020-10-12 14:07:25,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-12 14:07:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 4682 transitions. [2020-10-12 14:07:25,952 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 4682 transitions. Word has length 952 [2020-10-12 14:07:25,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:25,953 INFO L479 AbstractCegarLoop]: Abstraction has 3997 states and 4682 transitions. [2020-10-12 14:07:25,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:07:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 4682 transitions. [2020-10-12 14:07:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2020-10-12 14:07:25,969 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:25,970 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:25,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:07:25,970 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:25,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:25,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1139891400, now seen corresponding path program 1 times [2020-10-12 14:07:25,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:25,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818634621] [2020-10-12 14:07:25,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:26,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:26,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:28,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1076 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3882 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:07:30,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:30,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:30,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:30,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:30,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:30,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 14:07:30,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:30,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-12 14:07:30,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:30,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:30,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 14:07:30,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:30,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:07:30,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-12 14:07:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:30,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:30,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:30,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:07:30,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:07:30,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:07:30,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:30,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3460 backedges. 786 proven. 85 refuted. 0 times theorem prover too weak. 2589 trivial. 0 not checked. [2020-10-12 14:07:31,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818634621] [2020-10-12 14:07:31,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:31,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:31,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991250273] [2020-10-12 14:07:31,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:31,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:31,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:31,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:31,355 INFO L87 Difference]: Start difference. First operand 3997 states and 4682 transitions. Second operand 7 states. [2020-10-12 14:07:33,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:33,169 INFO L93 Difference]: Finished difference Result 8908 states and 10565 transitions. [2020-10-12 14:07:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:07:33,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1050 [2020-10-12 14:07:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:33,186 INFO L225 Difference]: With dead ends: 8908 [2020-10-12 14:07:33,186 INFO L226 Difference]: Without dead ends: 4915 [2020-10-12 14:07:33,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:07:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2020-10-12 14:07:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4913. [2020-10-12 14:07:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4913 states. [2020-10-12 14:07:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 5670 transitions. [2020-10-12 14:07:33,287 INFO L78 Accepts]: Start accepts. Automaton has 4913 states and 5670 transitions. Word has length 1050 [2020-10-12 14:07:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:33,289 INFO L479 AbstractCegarLoop]: Abstraction has 4913 states and 5670 transitions. [2020-10-12 14:07:33,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4913 states and 5670 transitions. [2020-10-12 14:07:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1169 [2020-10-12 14:07:33,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:33,310 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:33,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:07:33,310 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:33,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1772702309, now seen corresponding path program 1 times [2020-10-12 14:07:33,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:33,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012128469] [2020-10-12 14:07:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:33,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:34,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1196 [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 399 [2020-10-12 14:07:38,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:38,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:38,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:38,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:38,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:38,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:38,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:38,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:38,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:38,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:38,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:07:38,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:38,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:38,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:38,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:38,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:38,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:07:38,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:38,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:39,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:39,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:39,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:39,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:07:39,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:07:39,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:39,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:39,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:39,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:39,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:39,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:39,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 14:07:39,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 14:07:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-12 14:07:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:39,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:39,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:39,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:39,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:39,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:07:39,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:39,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:07:39,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:39,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:39,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:39,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:07:39,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:39,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-12 14:07:39,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-12 14:07:39,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-12 14:07:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:39,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:39,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:07:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:07:39,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:07:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4383 backedges. 2155 proven. 368 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-10-12 14:07:41,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012128469] [2020-10-12 14:07:41,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:41,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:07:41,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332207581] [2020-10-12 14:07:41,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:07:41,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:41,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:07:41,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:07:41,083 INFO L87 Difference]: Start difference. First operand 4913 states and 5670 transitions. Second operand 11 states. [2020-10-12 14:07:44,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:44,176 INFO L93 Difference]: Finished difference Result 9836 states and 11412 transitions. [2020-10-12 14:07:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 14:07:44,178 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1168 [2020-10-12 14:07:44,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:44,193 INFO L225 Difference]: With dead ends: 9836 [2020-10-12 14:07:44,194 INFO L226 Difference]: Without dead ends: 5113 [2020-10-12 14:07:44,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-12 14:07:44,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2020-10-12 14:07:44,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 4917. [2020-10-12 14:07:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4917 states. [2020-10-12 14:07:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4917 states to 4917 states and 5678 transitions. [2020-10-12 14:07:44,296 INFO L78 Accepts]: Start accepts. Automaton has 4917 states and 5678 transitions. Word has length 1168 [2020-10-12 14:07:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:44,297 INFO L479 AbstractCegarLoop]: Abstraction has 4917 states and 5678 transitions. [2020-10-12 14:07:44,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:07:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4917 states and 5678 transitions. [2020-10-12 14:07:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1214 [2020-10-12 14:07:44,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:44,316 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:44,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:07:44,316 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:44,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1783165772, now seen corresponding path program 1 times [2020-10-12 14:07:44,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:44,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117375039] [2020-10-12 14:07:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:44,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:45,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1241 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1185 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:07:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:45,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:45,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:45,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:45,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:45,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:45,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:07:45,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:45,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:45,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:45,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:45,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:45,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:45,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:45,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:45,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:45,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:45,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:45,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:45,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:45,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:45,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:45,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:45,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:45,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:45,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:45,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:45,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:46,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:46,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:46,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:46,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:46,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:07:46,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:46,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:46,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:46,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:46,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:46,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:46,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:46,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:46,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:46,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:46,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:46,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:46,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:07:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:46,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:46,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:07:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:07:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4547 backedges. 902 proven. 2 refuted. 0 times theorem prover too weak. 3643 trivial. 0 not checked. [2020-10-12 14:07:47,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117375039] [2020-10-12 14:07:47,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:47,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:07:47,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164690667] [2020-10-12 14:07:47,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:07:47,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:47,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:07:47,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:07:47,032 INFO L87 Difference]: Start difference. First operand 4917 states and 5678 transitions. Second operand 7 states. [2020-10-12 14:07:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:48,524 INFO L93 Difference]: Finished difference Result 10902 states and 12586 transitions. [2020-10-12 14:07:48,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:07:48,525 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1213 [2020-10-12 14:07:48,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:48,542 INFO L225 Difference]: With dead ends: 10902 [2020-10-12 14:07:48,542 INFO L226 Difference]: Without dead ends: 6175 [2020-10-12 14:07:48,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:07:48,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2020-10-12 14:07:48,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 5552. [2020-10-12 14:07:48,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5552 states. [2020-10-12 14:07:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 6367 transitions. [2020-10-12 14:07:48,651 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 6367 transitions. Word has length 1213 [2020-10-12 14:07:48,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:48,652 INFO L479 AbstractCegarLoop]: Abstraction has 5552 states and 6367 transitions. [2020-10-12 14:07:48,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:07:48,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 6367 transitions. [2020-10-12 14:07:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1357 [2020-10-12 14:07:48,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:48,680 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:48,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:07:48,681 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:48,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:48,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1683308344, now seen corresponding path program 1 times [2020-10-12 14:07:48,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:48,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938544567] [2020-10-12 14:07:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:49,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:49,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1386 [2020-10-12 14:07:54,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:07:54,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-12 14:07:54,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:07:54,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1366 [2020-10-12 14:07:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 14:07:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:07:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:07:54,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:07:54,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:07:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:07:54,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:54,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:07:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:07:54,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:07:54,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:07:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:07:54,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:07:54,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:07:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:07:54,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:07:54,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:07:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:07:54,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:07:54,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:07:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:07:54,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:07:54,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:07:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:07:54,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:07:54,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:07:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:54,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:07:54,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:07:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:07:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:07:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:54,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:07:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:54,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:54,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:07:54,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:07:54,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:07:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:07:54,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:07:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:07:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:07:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:07:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:07:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 162 proven. 11 refuted. 0 times theorem prover too weak. 5635 trivial. 0 not checked. [2020-10-12 14:07:55,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938544567] [2020-10-12 14:07:55,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:07:55,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:07:55,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054278190] [2020-10-12 14:07:55,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:07:55,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:07:55,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:07:55,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:07:55,356 INFO L87 Difference]: Start difference. First operand 5552 states and 6367 transitions. Second operand 5 states. [2020-10-12 14:07:56,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:07:56,661 INFO L93 Difference]: Finished difference Result 5742 states and 6606 transitions. [2020-10-12 14:07:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:07:56,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1356 [2020-10-12 14:07:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:07:56,678 INFO L225 Difference]: With dead ends: 5742 [2020-10-12 14:07:56,678 INFO L226 Difference]: Without dead ends: 5740 [2020-10-12 14:07:56,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:07:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5740 states. [2020-10-12 14:07:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5740 to 5552. [2020-10-12 14:07:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5552 states. [2020-10-12 14:07:56,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 6365 transitions. [2020-10-12 14:07:56,777 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 6365 transitions. Word has length 1356 [2020-10-12 14:07:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:07:56,778 INFO L479 AbstractCegarLoop]: Abstraction has 5552 states and 6365 transitions. [2020-10-12 14:07:56,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:07:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 6365 transitions. [2020-10-12 14:07:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1443 [2020-10-12 14:07:56,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:07:56,806 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:07:56,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:07:56,806 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:07:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:07:56,807 INFO L82 PathProgramCache]: Analyzing trace with hash -640913781, now seen corresponding path program 1 times [2020-10-12 14:07:56,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:07:56,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639198878] [2020-10-12 14:07:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:07:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:07:57,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:07:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:00,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1474 [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1366 [2020-10-12 14:08:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 14:08:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:08:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:08:02,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:08:02,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:08:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:08:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:08:02,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:08:02,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:08:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:08:02,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:08:02,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:08:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:08:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:08:02,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:08:02,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:08:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:08:02,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:08:02,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:08:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:08:02,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:08:02,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:08:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:08:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:08:02,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:08:02,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:08:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:08:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:08:02,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:08:02,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:08:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:02,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:08:02,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1344 [2020-10-12 14:08:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:02,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:02,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:08:02,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:08:02,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-12 14:08:02,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:02,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:08:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:08:02,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6752 backedges. 1104 proven. 2 refuted. 0 times theorem prover too weak. 5646 trivial. 0 not checked. [2020-10-12 14:08:03,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639198878] [2020-10-12 14:08:03,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:08:03,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:08:03,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631333458] [2020-10-12 14:08:03,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:08:03,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:08:03,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:08:03,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:08:03,662 INFO L87 Difference]: Start difference. First operand 5552 states and 6365 transitions. Second operand 7 states. [2020-10-12 14:08:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:08:04,982 INFO L93 Difference]: Finished difference Result 10798 states and 12412 transitions. [2020-10-12 14:08:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:08:04,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1442 [2020-10-12 14:08:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:08:04,995 INFO L225 Difference]: With dead ends: 10798 [2020-10-12 14:08:04,995 INFO L226 Difference]: Without dead ends: 5404 [2020-10-12 14:08:05,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:08:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2020-10-12 14:08:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 5364. [2020-10-12 14:08:05,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5364 states. [2020-10-12 14:08:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 6082 transitions. [2020-10-12 14:08:05,096 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 6082 transitions. Word has length 1442 [2020-10-12 14:08:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:08:05,098 INFO L479 AbstractCegarLoop]: Abstraction has 5364 states and 6082 transitions. [2020-10-12 14:08:05,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:08:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 6082 transitions. [2020-10-12 14:08:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1444 [2020-10-12 14:08:05,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:08:05,122 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:08:05,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 14:08:05,122 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:08:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:08:05,123 INFO L82 PathProgramCache]: Analyzing trace with hash 640179878, now seen corresponding path program 1 times [2020-10-12 14:08:05,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:08:05,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274046211] [2020-10-12 14:08:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:08:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:05,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:05,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:06,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1475 [2020-10-12 14:08:10,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:08:10,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5065 [2020-10-12 14:08:10,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:08:10,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-12 14:08:10,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-12 14:08:10,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:08:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:08:10,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:08:10,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:08:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:08:10,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:08:10,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:08:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:08:10,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:08:10,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:08:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:08:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:08:10,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:08:10,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:08:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:08:10,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:08:10,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:08:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:10,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:10,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:08:10,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:08:10,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:10,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:08:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:10,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:11,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:08:11,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:11,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 14:08:11,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:11,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:11,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:11,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:08:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:11,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:08:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:08:11,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:11,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:08:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:11,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:08:11,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:11,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-12 14:08:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:08:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-12 14:08:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:08:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:11,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:08:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:08:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-12 14:08:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:08:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:08:11,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:11,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-12 14:08:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:11,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:11,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:08:11,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:11,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-12 14:08:11,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:11,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:08:11,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:08:11,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-12 14:08:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:11,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:11,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:08:11,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:08:11,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-12 14:08:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:11,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:08:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6758 backedges. 2099 proven. 170 refuted. 0 times theorem prover too weak. 4489 trivial. 0 not checked. [2020-10-12 14:08:12,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274046211] [2020-10-12 14:08:12,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:08:12,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:08:12,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501144100] [2020-10-12 14:08:12,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:08:12,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:08:12,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:08:12,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:08:12,939 INFO L87 Difference]: Start difference. First operand 5364 states and 6082 transitions. Second operand 8 states. [2020-10-12 14:08:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:08:15,615 INFO L93 Difference]: Finished difference Result 11543 states and 13086 transitions. [2020-10-12 14:08:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:08:15,617 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1443 [2020-10-12 14:08:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:08:15,632 INFO L225 Difference]: With dead ends: 11543 [2020-10-12 14:08:15,632 INFO L226 Difference]: Without dead ends: 6181 [2020-10-12 14:08:15,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:08:15,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2020-10-12 14:08:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 5730. [2020-10-12 14:08:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5730 states. [2020-10-12 14:08:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 6431 transitions. [2020-10-12 14:08:15,757 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 6431 transitions. Word has length 1443 [2020-10-12 14:08:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:08:15,758 INFO L479 AbstractCegarLoop]: Abstraction has 5730 states and 6431 transitions. [2020-10-12 14:08:15,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:08:15,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 6431 transitions. [2020-10-12 14:08:15,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1509 [2020-10-12 14:08:15,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:08:15,785 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:08:15,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 14:08:15,786 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:08:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:08:15,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1332790809, now seen corresponding path program 1 times [2020-10-12 14:08:15,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:08:15,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898619053] [2020-10-12 14:08:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:08:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:16,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1540 [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1275 [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:08:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:08:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:08:17,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:08:17,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:08:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:08:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:08:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:08:17,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:08:17,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:08:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:08:17,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:08:17,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:08:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:08:17,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:08:17,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:08:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:08:17,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:08:17,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:08:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:08:17,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:08:17,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:17,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:08:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:17,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:17,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:17,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:08:17,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:08:17,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:18,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:08:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:18,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:18,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:18,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:08:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:08:18,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:18,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:18,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:08:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:18,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:18,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:18,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:08:18,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:08:18,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:18,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:18,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:08:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:18,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:18,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:18,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:08:18,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:18,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:08:18,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:08:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:18,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-12 14:08:18,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:18,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:08:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:18,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:18,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:08:18,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6906 backedges. 1104 proven. 2 refuted. 0 times theorem prover too weak. 5800 trivial. 0 not checked. [2020-10-12 14:08:19,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898619053] [2020-10-12 14:08:19,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:08:19,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:08:19,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307174167] [2020-10-12 14:08:19,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:08:19,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:08:19,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:08:19,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:08:19,347 INFO L87 Difference]: Start difference. First operand 5730 states and 6431 transitions. Second operand 7 states. [2020-10-12 14:08:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:08:21,182 INFO L93 Difference]: Finished difference Result 12384 states and 14035 transitions. [2020-10-12 14:08:21,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:08:21,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1508 [2020-10-12 14:08:21,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:08:21,209 INFO L225 Difference]: With dead ends: 12384 [2020-10-12 14:08:21,209 INFO L226 Difference]: Without dead ends: 6844 [2020-10-12 14:08:21,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:08:21,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6844 states. [2020-10-12 14:08:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6844 to 6464. [2020-10-12 14:08:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6464 states. [2020-10-12 14:08:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 7310 transitions. [2020-10-12 14:08:21,324 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 7310 transitions. Word has length 1508 [2020-10-12 14:08:21,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:08:21,325 INFO L479 AbstractCegarLoop]: Abstraction has 6464 states and 7310 transitions. [2020-10-12 14:08:21,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:08:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 7310 transitions. [2020-10-12 14:08:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1636 [2020-10-12 14:08:21,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:08:21,356 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-12 14:08:21,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 14:08:21,356 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:08:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:08:21,357 INFO L82 PathProgramCache]: Analyzing trace with hash 2117016763, now seen corresponding path program 1 times [2020-10-12 14:08:21,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:08:21,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796577910] [2020-10-12 14:08:21,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:08:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:21,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1669 [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1430 [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 14:08:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:08:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:08:23,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:08:23,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:08:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:08:23,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:08:23,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 14:08:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-12 14:08:23,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:08:23,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-12 14:08:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 14:08:23,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:08:23,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-12 14:08:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 14:08:23,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:08:23,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-12 14:08:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 14:08:23,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:08:23,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-12 14:08:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:08:23,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:08:23,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-12 14:08:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-12 14:08:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-12 14:08:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-12 14:08:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-12 14:08:23,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:08:23,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-12 14:08:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:23,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:23,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:08:23,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:23,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-12 14:08:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:23,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:24,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:24,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-12 14:08:24,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:24,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:08:24,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:08:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:08:24,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-12 14:08:24,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:08:24,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-12 14:08:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:08:24,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:08:24,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:08:24,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 14:08:24,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:08:24,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:08:24,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:08:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:08:24,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:08:24,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 14:08:24,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0