/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Problem16_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:20:13,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:20:13,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:20:13,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:20:13,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:20:13,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:20:13,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:20:13,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:20:13,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:20:13,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:20:13,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:20:13,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:20:13,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:20:13,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:20:13,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:20:13,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:20:13,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:20:13,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:20:13,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:20:13,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:20:13,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:20:13,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:20:13,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:20:13,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:20:13,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:20:13,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:20:13,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:20:13,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:20:13,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:20:13,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:20:13,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:20:13,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:20:13,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:20:13,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:20:13,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:20:13,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:20:13,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:20:13,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:20:13,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:20:13,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:20:13,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:20:13,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:20:13,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:20:13,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:20:13,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:20:13,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:20:13,873 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:20:13,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:20:13,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:20:13,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:20:13,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:20:13,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:20:13,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:20:13,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:20:13,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:20:13,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:20:13,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:20:13,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:20:13,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:20:13,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:20:13,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:20:13,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:20:13,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:20:13,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:20:13,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:20:13,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:20:13,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:20:13,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:20:13,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:20:13,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:20:13,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:20:13,878 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:20:14,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:20:14,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:20:14,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:20:14,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:20:14,212 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:20:14,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-14 22:20:14,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75b31e457/9bf4befdc1d442339601a80d35daec00/FLAG9d30627cd [2020-10-14 22:20:14,958 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:20:14,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-14 22:20:14,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75b31e457/9bf4befdc1d442339601a80d35daec00/FLAG9d30627cd [2020-10-14 22:20:15,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75b31e457/9bf4befdc1d442339601a80d35daec00 [2020-10-14 22:20:15,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:20:15,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:20:15,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:20:15,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:20:15,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:20:15,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:20:15" (1/1) ... [2020-10-14 22:20:15,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ff9054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:15, skipping insertion in model container [2020-10-14 22:20:15,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:20:15" (1/1) ... [2020-10-14 22:20:15,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:20:15,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:20:16,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:20:16,185 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:20:16,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:20:16,527 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:20:16,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16 WrapperNode [2020-10-14 22:20:16,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:20:16,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:20:16,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:20:16,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:20:16,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... [2020-10-14 22:20:16,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:20:16,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:20:16,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:20:16,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:20:16,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:20:16,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:20:16,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:20:16,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:20:16,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:20:16,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:20:16,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:20:16,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:20:16,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:20:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:20:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:20:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:20:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:20:16,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:20:19,256 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:20:19,257 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:20:19,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:20:19 BoogieIcfgContainer [2020-10-14 22:20:19,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:20:19,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:20:19,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:20:19,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:20:19,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:20:15" (1/3) ... [2020-10-14 22:20:19,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7e46a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:20:19, skipping insertion in model container [2020-10-14 22:20:19,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:16" (2/3) ... [2020-10-14 22:20:19,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7e46a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:20:19, skipping insertion in model container [2020-10-14 22:20:19,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:20:19" (3/3) ... [2020-10-14 22:20:19,273 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label51.c [2020-10-14 22:20:19,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:20:19,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:20:19,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:20:19,338 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:20:19,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:20:19,339 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:20:19,339 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:20:19,339 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:20:19,339 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:20:19,339 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:20:19,339 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:20:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:20:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 22:20:19,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:19,378 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] [2020-10-14 22:20:19,378 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:19,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:19,385 INFO L82 PathProgramCache]: Analyzing trace with hash 848957365, now seen corresponding path program 1 times [2020-10-14 22:20:19,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:19,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660734184] [2020-10-14 22:20:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:19,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:19,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:19,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 22:20:19,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:19,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-14 22:20:19,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:19,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:20:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 22:20:20,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:20,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:20,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:20,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:20:20,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:20,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:20,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:20:20,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660734184] [2020-10-14 22:20:20,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:20:20,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:20:20,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043918943] [2020-10-14 22:20:20,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:20:20,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:20,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:20:20,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:20:20,059 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:20:23,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:23,553 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 22:20:23,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:20:23,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-14 22:20:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:23,581 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:20:23,581 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:20:23,593 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 [2020-10-14 22:20:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:20:23,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 22:20:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 22:20:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 22:20:23,793 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 20 [2020-10-14 22:20:23,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:23,793 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 22:20:23,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:20:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 22:20:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 22:20:23,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:23,799 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:23,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:20:23,799 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:23,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1953526824, now seen corresponding path program 1 times [2020-10-14 22:20:23,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:23,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934910379] [2020-10-14 22:20:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 22:20:24,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:24,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-10-14 22:20:24,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:24,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:24,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:20:24,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:20:24,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:20:24,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:24,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:24,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:24,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:24,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:24,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:20:24,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:24,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 22:20:24,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:24,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:24,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:24,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:20:24,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:20:25,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934910379] [2020-10-14 22:20:25,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:20:25,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:20:25,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045802091] [2020-10-14 22:20:25,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:25,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:25,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:25,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:25,048 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-14 22:20:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:29,142 INFO L93 Difference]: Finished difference Result 2088 states and 3100 transitions. [2020-10-14 22:20:29,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:29,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2020-10-14 22:20:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:29,157 INFO L225 Difference]: With dead ends: 2088 [2020-10-14 22:20:29,157 INFO L226 Difference]: Without dead ends: 1402 [2020-10-14 22:20:29,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:20:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-14 22:20:29,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1378. [2020-10-14 22:20:29,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-14 22:20:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1812 transitions. [2020-10-14 22:20:29,218 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1812 transitions. Word has length 96 [2020-10-14 22:20:29,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:29,219 INFO L479 AbstractCegarLoop]: Abstraction has 1378 states and 1812 transitions. [2020-10-14 22:20:29,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1812 transitions. [2020-10-14 22:20:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-14 22:20:29,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:29,237 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:29,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:20:29,240 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:29,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:29,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2034977208, now seen corresponding path program 1 times [2020-10-14 22:20:29,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:29,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480922901] [2020-10-14 22:20:29,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:29,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:30,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:30,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 22:20:33,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:20:33,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3830 [2020-10-14 22:20:33,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:20:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:20:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:33,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:33,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:33,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:20:33,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:33,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:33,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:20:33,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 22:20:33,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:20:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:33,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:20:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:33,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:33,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:33,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:20:33,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:20:33,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:33,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:20:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:20:33,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480922901] [2020-10-14 22:20:33,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:33,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:33,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344369818] [2020-10-14 22:20:33,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:33,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:33,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:33,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:33,647 INFO L87 Difference]: Start difference. First operand 1378 states and 1812 transitions. Second operand 7 states. [2020-10-14 22:20:40,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:40,311 INFO L93 Difference]: Finished difference Result 3483 states and 4768 transitions. [2020-10-14 22:20:40,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:20:40,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-14 22:20:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:40,328 INFO L225 Difference]: With dead ends: 3483 [2020-10-14 22:20:40,328 INFO L226 Difference]: Without dead ends: 2111 [2020-10-14 22:20:40,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:20:40,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-10-14 22:20:40,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2082. [2020-10-14 22:20:40,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2020-10-14 22:20:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2687 transitions. [2020-10-14 22:20:40,391 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2687 transitions. Word has length 183 [2020-10-14 22:20:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:40,392 INFO L479 AbstractCegarLoop]: Abstraction has 2082 states and 2687 transitions. [2020-10-14 22:20:40,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:40,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2687 transitions. [2020-10-14 22:20:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-14 22:20:40,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:40,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:40,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:20:40,407 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:40,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:40,407 INFO L82 PathProgramCache]: Analyzing trace with hash -431308899, now seen corresponding path program 1 times [2020-10-14 22:20:40,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:40,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20338102] [2020-10-14 22:20:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:40,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:41,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:42,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 22:20:43,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:20:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2716 [2020-10-14 22:20:43,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 22:20:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:20:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:20:43,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:43,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:43,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:43,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:20:43,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:20:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:43,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:20:43,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:43,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:20:43,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:20:43,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:43,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:20:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:43,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:43,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:43,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:20:43,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:43,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-10-14 22:20:43,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:43,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:43,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:20:43,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-14 22:20:44,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20338102] [2020-10-14 22:20:44,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:44,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:44,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748440912] [2020-10-14 22:20:44,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:44,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:44,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:44,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:44,125 INFO L87 Difference]: Start difference. First operand 2082 states and 2687 transitions. Second operand 7 states. [2020-10-14 22:20:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:20:51,848 INFO L93 Difference]: Finished difference Result 5544 states and 7122 transitions. [2020-10-14 22:20:51,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:20:51,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-10-14 22:20:51,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:20:51,869 INFO L225 Difference]: With dead ends: 5544 [2020-10-14 22:20:51,869 INFO L226 Difference]: Without dead ends: 3468 [2020-10-14 22:20:51,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:20:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2020-10-14 22:20:51,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3116. [2020-10-14 22:20:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3116 states. [2020-10-14 22:20:52,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 3969 transitions. [2020-10-14 22:20:52,004 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 3969 transitions. Word has length 246 [2020-10-14 22:20:52,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:20:52,006 INFO L479 AbstractCegarLoop]: Abstraction has 3116 states and 3969 transitions. [2020-10-14 22:20:52,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:20:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 3969 transitions. [2020-10-14 22:20:52,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-10-14 22:20:52,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:20:52,028 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:20:52,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:20:52,029 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:20:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:20:52,030 INFO L82 PathProgramCache]: Analyzing trace with hash 681484064, now seen corresponding path program 1 times [2020-10-14 22:20:52,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:20:52,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787716517] [2020-10-14 22:20:52,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:20:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:52,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:52,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:52,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:53,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:54,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:57,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:57,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 449 [2020-10-14 22:20:57,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:20:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 22:20:57,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:57,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:20:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:20:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:20:57,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:57,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:20:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:57,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:57,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:20:57,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:20:57,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:57,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:57,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:20:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:57,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:57,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:57,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:20:57,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:20:57,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:57,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:20:57,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:20:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:20:57,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:20:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:57,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:57,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:57,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:57,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 22:20:57,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:20:57,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-14 22:20:57,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:57,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:57,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 22:20:57,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:20:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-14 22:20:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:57,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:58,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:58,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:20:58,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:58,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 22:20:58,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:58,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:20:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:20:58,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:20:58,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:58,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-14 22:20:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:20:58,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:20:58,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:20:58,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:20:58,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:20:58,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:20:58,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:20:58,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:20:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:20:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:20:58,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:20:58,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:20:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 236 proven. 140 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2020-10-14 22:20:58,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787716517] [2020-10-14 22:20:58,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:20:58,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:20:58,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032529354] [2020-10-14 22:20:58,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:20:58,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:20:58,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:20:58,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:20:58,502 INFO L87 Difference]: Start difference. First operand 3116 states and 3969 transitions. Second operand 7 states. [2020-10-14 22:21:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:03,466 INFO L93 Difference]: Finished difference Result 7663 states and 9998 transitions. [2020-10-14 22:21:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:03,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 433 [2020-10-14 22:21:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:03,489 INFO L225 Difference]: With dead ends: 7663 [2020-10-14 22:21:03,489 INFO L226 Difference]: Without dead ends: 3832 [2020-10-14 22:21:03,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2020-10-14 22:21:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3808. [2020-10-14 22:21:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-14 22:21:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 4168 transitions. [2020-10-14 22:21:03,614 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 4168 transitions. Word has length 433 [2020-10-14 22:21:03,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:03,614 INFO L479 AbstractCegarLoop]: Abstraction has 3808 states and 4168 transitions. [2020-10-14 22:21:03,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 4168 transitions. [2020-10-14 22:21:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2020-10-14 22:21:03,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:03,631 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:03,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:21:03,631 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:03,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:03,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1958203074, now seen corresponding path program 1 times [2020-10-14 22:21:03,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:03,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864162146] [2020-10-14 22:21:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:03,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:03,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:05,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:08,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:08,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 564 [2020-10-14 22:21:08,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:08,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:21:08,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:08,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:08,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:08,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:21:08,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:21:08,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:08,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:08,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:08,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:08,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:08,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:21:08,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:08,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:08,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:08,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:08,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:21:08,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:08,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 22:21:08,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:08,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:08,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:21:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:21:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:09,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:09,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:09,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:09,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:09,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:21:09,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:09,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:21:09,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:21:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:09,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:09,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:21:09,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:21:09,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:09,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:21:09,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:09,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:09,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 22:21:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:09,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:09,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:09,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:09,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:09,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:21:09,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:09,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:09,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-14 22:21:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:09,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:09,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:09,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:09,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:09,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 22:21:09,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:09,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:09,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:09,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 174 proven. 290 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2020-10-14 22:21:09,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864162146] [2020-10-14 22:21:09,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:09,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:09,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039516731] [2020-10-14 22:21:09,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:09,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:09,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:09,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:09,904 INFO L87 Difference]: Start difference. First operand 3808 states and 4168 transitions. Second operand 7 states. [2020-10-14 22:21:15,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:15,442 INFO L93 Difference]: Finished difference Result 9350 states and 10381 transitions. [2020-10-14 22:21:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:15,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 546 [2020-10-14 22:21:15,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:15,467 INFO L225 Difference]: With dead ends: 9350 [2020-10-14 22:21:15,467 INFO L226 Difference]: Without dead ends: 5548 [2020-10-14 22:21:15,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2020-10-14 22:21:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 5520. [2020-10-14 22:21:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5520 states. [2020-10-14 22:21:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5520 states to 5520 states and 5980 transitions. [2020-10-14 22:21:15,614 INFO L78 Accepts]: Start accepts. Automaton has 5520 states and 5980 transitions. Word has length 546 [2020-10-14 22:21:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:15,615 INFO L479 AbstractCegarLoop]: Abstraction has 5520 states and 5980 transitions. [2020-10-14 22:21:15,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5520 states and 5980 transitions. [2020-10-14 22:21:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2020-10-14 22:21:15,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:15,627 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:15,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:21:15,628 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:15,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1180744238, now seen corresponding path program 1 times [2020-10-14 22:21:15,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:15,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247311218] [2020-10-14 22:21:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:15,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:16,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:17,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:19,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:20,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:20,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 682 [2020-10-14 22:21:20,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 22:21:20,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:20,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:21:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:21:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:21:20,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:20,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:20,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:20,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:20,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:21:20,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:20,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:20,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:21:20,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:20,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:20,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:21,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:21,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:21:21,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:21,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-14 22:21:21,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:21,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:21,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:21:21,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 22:21:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:21,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:21,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:21,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:21,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:21,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:21:21,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:21,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:21:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:21,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:21,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 22:21:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:21,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:21,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:21,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:21:21,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:21,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:21:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:21,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:21,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:21:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:21,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:21,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:21,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:21:21,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:21,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:21,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-14 22:21:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:21,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:21,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:21,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:21,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:21,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:21:21,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:21,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:21,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 65 proven. 375 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-14 22:21:22,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247311218] [2020-10-14 22:21:22,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:22,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:22,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460279210] [2020-10-14 22:21:22,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:22,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:22,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:22,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:22,356 INFO L87 Difference]: Start difference. First operand 5520 states and 5980 transitions. Second operand 7 states. [2020-10-14 22:21:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:25,484 INFO L93 Difference]: Finished difference Result 11755 states and 12745 transitions. [2020-10-14 22:21:25,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:25,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 664 [2020-10-14 22:21:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:25,517 INFO L225 Difference]: With dead ends: 11755 [2020-10-14 22:21:25,517 INFO L226 Difference]: Without dead ends: 6241 [2020-10-14 22:21:25,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:25,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-10-14 22:21:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6201. [2020-10-14 22:21:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6201 states. [2020-10-14 22:21:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 6691 transitions. [2020-10-14 22:21:25,666 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 6691 transitions. Word has length 664 [2020-10-14 22:21:25,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:25,667 INFO L479 AbstractCegarLoop]: Abstraction has 6201 states and 6691 transitions. [2020-10-14 22:21:25,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 6691 transitions. [2020-10-14 22:21:25,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2020-10-14 22:21:25,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:25,682 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:25,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:21:25,683 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:25,683 INFO L82 PathProgramCache]: Analyzing trace with hash 429095682, now seen corresponding path program 1 times [2020-10-14 22:21:25,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:25,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503352491] [2020-10-14 22:21:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:25,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:26,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:28,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:30,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 766 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-14 22:21:30,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:21:30,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:30,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:30,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:30,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:30,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:30,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:30,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:31,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:31,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:31,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:31,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:21:31,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:31,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:21:31,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:31,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:21:31,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:31,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 22:21:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:31,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:31,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:31,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:31,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:31,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 22:21:31,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:31,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:31,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:21:31,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:31,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 22:21:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:31,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:21:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:31,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-14 22:21:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:31,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:31,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:31,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:21:31,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:31,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:21:31,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:31,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-14 22:21:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 368 proven. 178 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2020-10-14 22:21:31,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503352491] [2020-10-14 22:21:31,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:31,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:31,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817048695] [2020-10-14 22:21:31,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:31,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:31,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:31,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:31,767 INFO L87 Difference]: Start difference. First operand 6201 states and 6691 transitions. Second operand 7 states. [2020-10-14 22:21:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:34,929 INFO L93 Difference]: Finished difference Result 13782 states and 15079 transitions. [2020-10-14 22:21:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:34,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 748 [2020-10-14 22:21:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:34,961 INFO L225 Difference]: With dead ends: 13782 [2020-10-14 22:21:34,961 INFO L226 Difference]: Without dead ends: 7924 [2020-10-14 22:21:34,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:34,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7924 states. [2020-10-14 22:21:35,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7924 to 7567. [2020-10-14 22:21:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7567 states. [2020-10-14 22:21:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7567 states to 7567 states and 8114 transitions. [2020-10-14 22:21:35,125 INFO L78 Accepts]: Start accepts. Automaton has 7567 states and 8114 transitions. Word has length 748 [2020-10-14 22:21:35,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:35,126 INFO L479 AbstractCegarLoop]: Abstraction has 7567 states and 8114 transitions. [2020-10-14 22:21:35,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7567 states and 8114 transitions. [2020-10-14 22:21:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2020-10-14 22:21:35,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:35,160 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:35,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:21:35,161 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1466906684, now seen corresponding path program 1 times [2020-10-14 22:21:35,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:35,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131118298] [2020-10-14 22:21:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:35,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:35,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:35,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:36,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:39,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1300 [2020-10-14 22:21:40,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:21:40,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5093 [2020-10-14 22:21:40,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:21:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:21:40,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 22:21:40,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:40,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:40,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:21:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:40,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:40,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:40,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:21:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:21:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-14 22:21:40,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:40,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 22:21:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:40,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:21:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:40,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:21:41,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:41,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 22:21:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:41,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:41,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 22:21:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:41,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:41,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 22:21:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:41,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:41,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:21:41,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:21:41,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:41,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-14 22:21:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:41,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:41,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:21:41,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:41,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:41,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:41,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:41,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-14 22:21:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:41,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:41,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:21:41,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:41,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:41,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-14 22:21:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:41,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:21:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:41,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:41,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:41,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:41,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:41,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:41,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 352 proven. 701 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2020-10-14 22:21:42,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131118298] [2020-10-14 22:21:42,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:42,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:42,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299747066] [2020-10-14 22:21:42,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:42,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:42,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:42,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:42,735 INFO L87 Difference]: Start difference. First operand 7567 states and 8114 transitions. Second operand 7 states. [2020-10-14 22:21:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:45,512 INFO L93 Difference]: Finished difference Result 14809 states and 15908 transitions. [2020-10-14 22:21:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:21:45,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1276 [2020-10-14 22:21:45,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:45,540 INFO L225 Difference]: With dead ends: 14809 [2020-10-14 22:21:45,541 INFO L226 Difference]: Without dead ends: 7587 [2020-10-14 22:21:45,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:21:45,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7587 states. [2020-10-14 22:21:45,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7587 to 7569. [2020-10-14 22:21:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7569 states. [2020-10-14 22:21:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7569 states to 7569 states and 8114 transitions. [2020-10-14 22:21:45,691 INFO L78 Accepts]: Start accepts. Automaton has 7569 states and 8114 transitions. Word has length 1276 [2020-10-14 22:21:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:45,692 INFO L479 AbstractCegarLoop]: Abstraction has 7569 states and 8114 transitions. [2020-10-14 22:21:45,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7569 states and 8114 transitions. [2020-10-14 22:21:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1311 [2020-10-14 22:21:45,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:45,724 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:45,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:21:45,724 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:45,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1618062045, now seen corresponding path program 1 times [2020-10-14 22:21:45,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:45,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484948386] [2020-10-14 22:21:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:46,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:46,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:46,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1336 [2020-10-14 22:21:51,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:21:51,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 22:21:51,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-14 22:21:51,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 22:21:51,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:21:51,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:21:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:21:51,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:21:51,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:21:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:21:51,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:21:51,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:21:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:21:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:21:51,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:21:51,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:21:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 22:21:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-14 22:21:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:21:51,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 22:21:51,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:21:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:21:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 22:21:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:51,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-14 22:21:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:21:51,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:21:51,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:21:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:21:51,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-14 22:21:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:51,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:51,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:51,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:21:51,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:51,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:21:51,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:51,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:21:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:52,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:52,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-14 22:21:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:52,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:52,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:52,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:21:52,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 22:21:52,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:52,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:52,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:21:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:52,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:21:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:52,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:52,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:21:52,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:21:52,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:21:52,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:21:52,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:21:52,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:21:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:21:52,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:21:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:21:52,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:21:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3455 backedges. 641 proven. 389 refuted. 0 times theorem prover too weak. 2425 trivial. 0 not checked. [2020-10-14 22:21:52,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484948386] [2020-10-14 22:21:52,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:21:52,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:21:52,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226373561] [2020-10-14 22:21:52,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:21:52,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:21:52,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:21:52,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:21:52,997 INFO L87 Difference]: Start difference. First operand 7569 states and 8114 transitions. Second operand 7 states. [2020-10-14 22:21:56,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:21:56,775 INFO L93 Difference]: Finished difference Result 19223 states and 20948 transitions. [2020-10-14 22:21:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:21:56,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1310 [2020-10-14 22:21:56,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:21:56,808 INFO L225 Difference]: With dead ends: 19223 [2020-10-14 22:21:56,808 INFO L226 Difference]: Without dead ends: 11999 [2020-10-14 22:21:56,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:21:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11999 states. [2020-10-14 22:21:57,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11999 to 11987. [2020-10-14 22:21:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11987 states. [2020-10-14 22:21:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11987 states to 11987 states and 12881 transitions. [2020-10-14 22:21:57,037 INFO L78 Accepts]: Start accepts. Automaton has 11987 states and 12881 transitions. Word has length 1310 [2020-10-14 22:21:57,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:21:57,038 INFO L479 AbstractCegarLoop]: Abstraction has 11987 states and 12881 transitions. [2020-10-14 22:21:57,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:21:57,039 INFO L276 IsEmpty]: Start isEmpty. Operand 11987 states and 12881 transitions. [2020-10-14 22:21:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2020-10-14 22:21:57,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:21:57,079 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:21:57,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:21:57,080 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:21:57,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:21:57,081 INFO L82 PathProgramCache]: Analyzing trace with hash 884273000, now seen corresponding path program 1 times [2020-10-14 22:21:57,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:21:57,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3849815] [2020-10-14 22:21:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:21:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:21:57,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:57,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:21:58,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1337 [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:22:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:22:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:02,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:02,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 22:22:02,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:22:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:02,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:02,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:02,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:02,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:22:02,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 22:22:02,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:02,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:22:02,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:22:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:03,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:22:03,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 22:22:03,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 22:22:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:03,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:22:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 22:22:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 22:22:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:22:03,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-14 22:22:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:22:03,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:22:03,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:22:03,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-14 22:22:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 22:22:03,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-14 22:22:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:22:03,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-14 22:22:03,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:22:03,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:03,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:03,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:03,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:03,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:22:03,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:03,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:22:03,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:03,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3462 backedges. 287 proven. 741 refuted. 0 times theorem prover too weak. 2434 trivial. 0 not checked. [2020-10-14 22:22:05,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3849815] [2020-10-14 22:22:05,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:05,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:22:05,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712114883] [2020-10-14 22:22:05,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:22:05,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:05,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:22:05,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:22:05,142 INFO L87 Difference]: Start difference. First operand 11987 states and 12881 transitions. Second operand 8 states. [2020-10-14 22:22:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:10,299 INFO L93 Difference]: Finished difference Result 26910 states and 30116 transitions. [2020-10-14 22:22:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:22:10,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1311 [2020-10-14 22:22:10,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:10,358 INFO L225 Difference]: With dead ends: 26910 [2020-10-14 22:22:10,358 INFO L226 Difference]: Without dead ends: 15268 [2020-10-14 22:22:10,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:22:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15268 states. [2020-10-14 22:22:10,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15268 to 15048. [2020-10-14 22:22:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15048 states. [2020-10-14 22:22:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15048 states to 15048 states and 16202 transitions. [2020-10-14 22:22:10,817 INFO L78 Accepts]: Start accepts. Automaton has 15048 states and 16202 transitions. Word has length 1311 [2020-10-14 22:22:10,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:10,818 INFO L479 AbstractCegarLoop]: Abstraction has 15048 states and 16202 transitions. [2020-10-14 22:22:10,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:22:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 15048 states and 16202 transitions. [2020-10-14 22:22:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1560 [2020-10-14 22:22:10,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:10,868 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:10,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:22:10,869 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:10,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1480484566, now seen corresponding path program 1 times [2020-10-14 22:22:10,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:10,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898842178] [2020-10-14 22:22:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:11,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:11,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1583 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5106 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1191 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 22:22:16,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:16,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:16,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:22:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:16,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:22:16,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:16,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:16,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:22:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:16,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:22:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:16,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:22:16,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:16,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:22:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:16,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:16,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:16,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:22:16,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:16,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 22:22:16,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:16,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:16,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 22:22:16,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2020-10-14 22:22:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:17,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:17,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:17,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 22:22:17,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:17,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-14 22:22:17,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:17,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:22:17,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:17,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1431 [2020-10-14 22:22:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:17,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:17,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:17,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 22:22:17,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:17,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 22:22:17,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:17,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:17,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 22:22:17,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4408 backedges. 1285 proven. 115 refuted. 0 times theorem prover too weak. 3008 trivial. 0 not checked. [2020-10-14 22:22:18,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898842178] [2020-10-14 22:22:18,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:18,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:18,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985017473] [2020-10-14 22:22:18,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:18,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:18,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:18,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:18,607 INFO L87 Difference]: Start difference. First operand 15048 states and 16202 transitions. Second operand 7 states. [2020-10-14 22:22:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:22,086 INFO L93 Difference]: Finished difference Result 31460 states and 33955 transitions. [2020-10-14 22:22:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:22:22,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1559 [2020-10-14 22:22:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:22,142 INFO L225 Difference]: With dead ends: 31460 [2020-10-14 22:22:22,142 INFO L226 Difference]: Without dead ends: 14710 [2020-10-14 22:22:22,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:22:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14710 states. [2020-10-14 22:22:22,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14710 to 14347. [2020-10-14 22:22:22,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14347 states. [2020-10-14 22:22:22,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14347 states to 14347 states and 15035 transitions. [2020-10-14 22:22:22,570 INFO L78 Accepts]: Start accepts. Automaton has 14347 states and 15035 transitions. Word has length 1559 [2020-10-14 22:22:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:22,571 INFO L479 AbstractCegarLoop]: Abstraction has 14347 states and 15035 transitions. [2020-10-14 22:22:22,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 14347 states and 15035 transitions. [2020-10-14 22:22:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1640 [2020-10-14 22:22:22,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:22,627 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:22,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:22:22,627 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:22,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:22,628 INFO L82 PathProgramCache]: Analyzing trace with hash 948694809, now seen corresponding path program 1 times [2020-10-14 22:22:22,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:22,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895236078] [2020-10-14 22:22:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:23,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:23,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:27,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:27,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1663 [2020-10-14 22:22:27,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:22:27,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 22:22:27,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:27,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:22:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:22:27,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:28,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:28,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:28,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:28,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:28,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:28,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:28,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:28,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:28,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:22:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:28,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:28,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:28,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:22:28,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:28,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:28,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:28,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:28,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:22:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:22:28,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:22:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:28,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:28,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:28,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 22:22:28,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:28,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:28,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:28,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:22:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:28,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:29,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:29,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:22:29,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:29,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:22:29,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:29,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:22:29,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:29,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:29,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1332 [2020-10-14 22:22:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:29,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:22:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:29,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:29,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:29,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:29,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:29,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:29,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4252 backedges. 912 proven. 534 refuted. 0 times theorem prover too weak. 2806 trivial. 0 not checked. [2020-10-14 22:22:30,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895236078] [2020-10-14 22:22:30,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:30,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:30,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137495782] [2020-10-14 22:22:30,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:30,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:30,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:30,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:30,740 INFO L87 Difference]: Start difference. First operand 14347 states and 15035 transitions. Second operand 7 states. [2020-10-14 22:22:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:33,948 INFO L93 Difference]: Finished difference Result 28359 states and 29736 transitions. [2020-10-14 22:22:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:22:33,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1639 [2020-10-14 22:22:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:34,004 INFO L225 Difference]: With dead ends: 28359 [2020-10-14 22:22:34,004 INFO L226 Difference]: Without dead ends: 14357 [2020-10-14 22:22:34,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:22:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14357 states. [2020-10-14 22:22:34,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14357 to 14347. [2020-10-14 22:22:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14347 states. [2020-10-14 22:22:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14347 states to 14347 states and 15027 transitions. [2020-10-14 22:22:34,322 INFO L78 Accepts]: Start accepts. Automaton has 14347 states and 15027 transitions. Word has length 1639 [2020-10-14 22:22:34,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:34,323 INFO L479 AbstractCegarLoop]: Abstraction has 14347 states and 15027 transitions. [2020-10-14 22:22:34,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:22:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 14347 states and 15027 transitions. [2020-10-14 22:22:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1801 [2020-10-14 22:22:34,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:34,383 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:34,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:22:34,384 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:34,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:34,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1668422496, now seen corresponding path program 1 times [2020-10-14 22:22:34,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:34,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823800782] [2020-10-14 22:22:34,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:35,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:36,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1828 [2020-10-14 22:22:39,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:39,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 22:22:39,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:22:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 823 [2020-10-14 22:22:39,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:22:39,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:39,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:39,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:39,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:39,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:39,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:39,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:22:39,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:39,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:39,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:22:40,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 22:22:40,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:40,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:40,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:22:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 22:22:40,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:22:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:40,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:22:40,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:22:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 22:22:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-14 22:22:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 22:22:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-14 22:22:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:40,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:40,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:40,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:22:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:41,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1228 [2020-10-14 22:22:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:41,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:41,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:41,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:22:41,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:41,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:22:41,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:41,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:22:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:41,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:41,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1493 [2020-10-14 22:22:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:41,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:41,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:22:41,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:41,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:41,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:41,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:41,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:41,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 1593 proven. 947 refuted. 0 times theorem prover too weak. 3024 trivial. 0 not checked. [2020-10-14 22:22:44,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823800782] [2020-10-14 22:22:44,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:44,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:22:44,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619636473] [2020-10-14 22:22:44,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:22:44,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:44,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:22:44,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:22:44,004 INFO L87 Difference]: Start difference. First operand 14347 states and 15027 transitions. Second operand 8 states. [2020-10-14 22:22:47,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:22:47,956 INFO L93 Difference]: Finished difference Result 29045 states and 30446 transitions. [2020-10-14 22:22:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:22:47,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1800 [2020-10-14 22:22:47,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:22:47,989 INFO L225 Difference]: With dead ends: 29045 [2020-10-14 22:22:47,989 INFO L226 Difference]: Without dead ends: 15043 [2020-10-14 22:22:48,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:22:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15043 states. [2020-10-14 22:22:48,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15043 to 15027. [2020-10-14 22:22:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15027 states. [2020-10-14 22:22:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15027 states to 15027 states and 15731 transitions. [2020-10-14 22:22:48,229 INFO L78 Accepts]: Start accepts. Automaton has 15027 states and 15731 transitions. Word has length 1800 [2020-10-14 22:22:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:22:48,231 INFO L479 AbstractCegarLoop]: Abstraction has 15027 states and 15731 transitions. [2020-10-14 22:22:48,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:22:48,231 INFO L276 IsEmpty]: Start isEmpty. Operand 15027 states and 15731 transitions. [2020-10-14 22:22:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1880 [2020-10-14 22:22:48,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:22:48,281 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:22:48,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:22:48,281 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:22:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:22:48,282 INFO L82 PathProgramCache]: Analyzing trace with hash -72038079, now seen corresponding path program 1 times [2020-10-14 22:22:48,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:22:48,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997606869] [2020-10-14 22:22:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:22:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:48,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:48,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:49,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:53,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:53,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1907 [2020-10-14 22:22:53,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:22:53,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-14 22:22:53,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:53,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-14 22:22:53,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:22:53,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:22:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:53,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:53,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:53,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:22:53,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:53,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:22:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:53,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:53,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:53,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:22:53,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:22:53,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:53,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:53,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:22:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:53,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:53,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:54,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:22:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:54,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:54,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:54,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:22:54,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:22:54,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:54,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:54,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:54,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:22:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:54,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:54,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:54,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:54,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:54,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:22:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:54,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:54,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:54,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:22:54,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:22:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:22:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:54,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:54,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:54,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:22:54,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:54,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-14 22:22:54,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:54,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:22:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:22:54,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:22:54,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:22:54,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-14 22:22:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:54,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:54,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:22:54,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 22:22:54,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:54,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:22:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:54,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:54,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1307 [2020-10-14 22:22:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:54,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:55,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:22:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:55,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1572 [2020-10-14 22:22:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:55,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:55,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:22:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:55,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:22:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:22:55,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:22:55,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:22:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:22:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:22:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:22:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 958 proven. 743 refuted. 0 times theorem prover too weak. 4179 trivial. 0 not checked. [2020-10-14 22:22:56,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997606869] [2020-10-14 22:22:56,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:22:56,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:22:56,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476040448] [2020-10-14 22:22:56,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:22:56,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:22:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:22:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:22:56,979 INFO L87 Difference]: Start difference. First operand 15027 states and 15731 transitions. Second operand 7 states. [2020-10-14 22:23:00,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:23:00,292 INFO L93 Difference]: Finished difference Result 30054 states and 31469 transitions. [2020-10-14 22:23:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:23:00,293 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1879 [2020-10-14 22:23:00,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:23:00,324 INFO L225 Difference]: With dead ends: 30054 [2020-10-14 22:23:00,324 INFO L226 Difference]: Without dead ends: 15372 [2020-10-14 22:23:00,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:23:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15372 states. [2020-10-14 22:23:00,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15372 to 15366. [2020-10-14 22:23:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15366 states. [2020-10-14 22:23:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15366 states to 15366 states and 16078 transitions. [2020-10-14 22:23:00,545 INFO L78 Accepts]: Start accepts. Automaton has 15366 states and 16078 transitions. Word has length 1879 [2020-10-14 22:23:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:23:00,547 INFO L479 AbstractCegarLoop]: Abstraction has 15366 states and 16078 transitions. [2020-10-14 22:23:00,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:23:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand 15366 states and 16078 transitions. [2020-10-14 22:23:00,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1918 [2020-10-14 22:23:00,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:23:00,587 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:23:00,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:23:00,588 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:23:00,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:23:00,589 INFO L82 PathProgramCache]: Analyzing trace with hash 120226575, now seen corresponding path program 1 times [2020-10-14 22:23:00,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:23:00,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017961350] [2020-10-14 22:23:00,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:23:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:00,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:01,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:01,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:01,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:05,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:05,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:05,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1945 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 940 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 420 [2020-10-14 22:23:05,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:23:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:23:06,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:06,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:23:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:23:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:23:06,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:23:06,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:06,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:23:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:06,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:23:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:23:06,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:23:06,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:06,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:23:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:23:06,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:06,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:23:06,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:06,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:06,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-14 22:23:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:23:06,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:06,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 22:23:06,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:23:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:23:06,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 930 [2020-10-14 22:23:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:06,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:23:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 22:23:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:06,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1072 [2020-10-14 22:23:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:06,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:07,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:07,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:23:07,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:07,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-14 22:23:07,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:07,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:07,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:07,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:23:07,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:23:07,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:07,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-14 22:23:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:07,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:07,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:07,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:07,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:07,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1610 [2020-10-14 22:23:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:07,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:07,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:23:07,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:07,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:07,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:23:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:07,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:07,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:23:07,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:07,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:23:07,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:07,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:07,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:07,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:07,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 1257 proven. 540 refuted. 0 times theorem prover too weak. 4287 trivial. 0 not checked. [2020-10-14 22:23:09,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017961350] [2020-10-14 22:23:09,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:23:09,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:23:09,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066734712] [2020-10-14 22:23:09,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:23:09,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:23:09,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:23:09,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:23:09,484 INFO L87 Difference]: Start difference. First operand 15366 states and 16078 transitions. Second operand 8 states. [2020-10-14 22:23:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:23:14,236 INFO L93 Difference]: Finished difference Result 31075 states and 32544 transitions. [2020-10-14 22:23:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:23:14,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1917 [2020-10-14 22:23:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:23:14,268 INFO L225 Difference]: With dead ends: 31075 [2020-10-14 22:23:14,268 INFO L226 Difference]: Without dead ends: 16054 [2020-10-14 22:23:14,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:23:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16054 states. [2020-10-14 22:23:14,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16054 to 15707. [2020-10-14 22:23:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15707 states. [2020-10-14 22:23:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15707 states to 15707 states and 16445 transitions. [2020-10-14 22:23:14,495 INFO L78 Accepts]: Start accepts. Automaton has 15707 states and 16445 transitions. Word has length 1917 [2020-10-14 22:23:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:23:14,497 INFO L479 AbstractCegarLoop]: Abstraction has 15707 states and 16445 transitions. [2020-10-14 22:23:14,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:23:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 15707 states and 16445 transitions. [2020-10-14 22:23:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2031 [2020-10-14 22:23:14,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:23:14,531 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:23:14,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:23:14,531 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:23:14,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:23:14,532 INFO L82 PathProgramCache]: Analyzing trace with hash -2117434421, now seen corresponding path program 1 times [2020-10-14 22:23:14,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:23:14,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456917740] [2020-10-14 22:23:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:23:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:14,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:15,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2062 [2020-10-14 22:23:20,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:23:20,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5279 [2020-10-14 22:23:20,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:23:20,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:23:20,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:23:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:23:20,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:23:20,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:20,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:20,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:20,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:23:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:23:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:23:20,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:23:20,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:20,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:23:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:23:20,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:23:20,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:23:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:23:20,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:23:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:23:20,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:23:20,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:23:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:23:20,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:23:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:23:20,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-14 22:23:20,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:23:20,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:20,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:20,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:23:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:20,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:20,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:20,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:23:20,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:20,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:23:20,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:20,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:20,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 22:23:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:21,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:21,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:21,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:23:21,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:21,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 22:23:21,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:21,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:21,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:21,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:23:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 22:23:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:21,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:23:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 22:23:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:21,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:23:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:21,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-14 22:23:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:21,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:21,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:23:21,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:21,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:23:21,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:21,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:23:21,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:21,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1723 [2020-10-14 22:23:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:21,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:22,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:22,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:23:22,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:22,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:22,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:23:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:22,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:22,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:22,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:23:22,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:22,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:23:22,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:22,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:22,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:22,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:22,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:22,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6638 backedges. 628 proven. 521 refuted. 0 times theorem prover too weak. 5489 trivial. 0 not checked. [2020-10-14 22:23:23,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456917740] [2020-10-14 22:23:23,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:23:23,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:23:23,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149260162] [2020-10-14 22:23:23,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:23:23,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:23:23,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:23:23,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:23:23,756 INFO L87 Difference]: Start difference. First operand 15707 states and 16445 transitions. Second operand 7 states. [2020-10-14 22:23:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:23:27,633 INFO L93 Difference]: Finished difference Result 33787 states and 35433 transitions. [2020-10-14 22:23:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:23:27,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2030 [2020-10-14 22:23:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:23:27,660 INFO L225 Difference]: With dead ends: 33787 [2020-10-14 22:23:27,660 INFO L226 Difference]: Without dead ends: 18425 [2020-10-14 22:23:27,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:23:27,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18425 states. [2020-10-14 22:23:27,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18425 to 18076. [2020-10-14 22:23:27,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18076 states. [2020-10-14 22:23:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18076 states to 18076 states and 18864 transitions. [2020-10-14 22:23:27,888 INFO L78 Accepts]: Start accepts. Automaton has 18076 states and 18864 transitions. Word has length 2030 [2020-10-14 22:23:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:23:27,889 INFO L479 AbstractCegarLoop]: Abstraction has 18076 states and 18864 transitions. [2020-10-14 22:23:27,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:23:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 18076 states and 18864 transitions. [2020-10-14 22:23:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2056 [2020-10-14 22:23:27,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:23:27,932 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:23:27,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:23:27,933 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:23:27,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:23:27,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233086, now seen corresponding path program 1 times [2020-10-14 22:23:27,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:23:27,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170040177] [2020-10-14 22:23:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:23:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:28,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:28,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2087 [2020-10-14 22:23:33,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:23:33,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5156 [2020-10-14 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 702 [2020-10-14 22:23:33,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 22:23:33,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:33,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:23:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:33,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:33,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:33,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:23:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:33,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:33,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:33,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:33,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:23:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:33,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:23:33,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:23:33,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:33,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:23:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:33,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:23:33,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:33,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:23:33,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:33,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:23:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:33,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 22:23:33,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:33,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:23:33,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:23:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:33,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 22:23:33,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:33,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2020-10-14 22:23:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:33,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:33,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:23:33,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:33,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:23:33,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:33,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:33,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:23:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 22:23:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2020-10-14 22:23:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:23:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 22:23:34,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:23:34,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:34,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:34,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1136 [2020-10-14 22:23:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:23:34,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:23:34,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:23:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:34,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1210 [2020-10-14 22:23:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1483 [2020-10-14 22:23:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:23:34,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:23:34,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:23:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:34,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1748 [2020-10-14 22:23:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:23:34,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:23:34,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:23:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:34,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:23:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:34,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:34,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:34,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:23:34,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:34,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:23:34,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:34,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:34,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:34,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6842 backedges. 653 proven. 521 refuted. 0 times theorem prover too weak. 5668 trivial. 0 not checked. [2020-10-14 22:23:36,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170040177] [2020-10-14 22:23:36,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:23:36,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:23:36,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178373563] [2020-10-14 22:23:36,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:23:36,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:23:36,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:23:36,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:23:36,406 INFO L87 Difference]: Start difference. First operand 18076 states and 18864 transitions. Second operand 7 states. [2020-10-14 22:23:39,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:23:39,560 INFO L93 Difference]: Finished difference Result 38174 states and 39928 transitions. [2020-10-14 22:23:39,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:23:39,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2055 [2020-10-14 22:23:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:23:39,591 INFO L225 Difference]: With dead ends: 38174 [2020-10-14 22:23:39,591 INFO L226 Difference]: Without dead ends: 20443 [2020-10-14 22:23:39,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:23:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20443 states. [2020-10-14 22:23:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20443 to 19422. [2020-10-14 22:23:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19422 states. [2020-10-14 22:23:39,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19422 states to 19422 states and 20277 transitions. [2020-10-14 22:23:39,845 INFO L78 Accepts]: Start accepts. Automaton has 19422 states and 20277 transitions. Word has length 2055 [2020-10-14 22:23:39,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:23:39,846 INFO L479 AbstractCegarLoop]: Abstraction has 19422 states and 20277 transitions. [2020-10-14 22:23:39,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:23:39,847 INFO L276 IsEmpty]: Start isEmpty. Operand 19422 states and 20277 transitions. [2020-10-14 22:23:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2054 [2020-10-14 22:23:39,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:23:39,895 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:23:39,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:23:39,895 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:23:39,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:23:39,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1009211333, now seen corresponding path program 1 times [2020-10-14 22:23:39,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:23:39,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734800762] [2020-10-14 22:23:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:23:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:40,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:40,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2081 [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:45,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-14 22:23:45,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:23:45,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:45,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:23:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:45,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:45,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:45,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:23:45,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:23:45,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:45,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:45,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:23:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:45,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:45,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:45,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:23:45,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:45,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:45,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:23:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:45,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:45,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:45,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:23:45,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:45,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 22:23:45,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:45,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:45,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:45,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:45,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:45,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:23:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:23:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:45,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:45,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:45,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:23:45,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:45,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:23:45,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:45,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:45,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:45,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:45,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:23:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:45,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:45,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:45,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 22:23:45,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:45,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:23:45,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:45,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:45,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:45,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:46,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 875 [2020-10-14 22:23:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:46,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:46,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:46,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:23:46,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:23:46,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:46,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:23:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:23:46,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:46,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 958 [2020-10-14 22:23:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:46,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:46,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:46,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:23:46,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-14 22:23:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:46,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:23:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:23:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:23:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1208 [2020-10-14 22:23:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:46,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:46,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:46,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:23:46,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:46,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:23:46,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:46,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:46,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:46,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:23:46,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:46,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:47,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1481 [2020-10-14 22:23:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:47,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:47,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 22:23:47,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1746 [2020-10-14 22:23:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:47,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:47,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:23:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:47,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:23:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:23:47,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:23:47,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:23:47,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:23:47,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:23:47,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:23:47,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:23:47,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:23:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:23:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:23:47,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:23:47,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:23:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6834 backedges. 1106 proven. 743 refuted. 0 times theorem prover too weak. 4985 trivial. 0 not checked. [2020-10-14 22:23:49,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734800762] [2020-10-14 22:23:49,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:23:49,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:23:49,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456073310] [2020-10-14 22:23:49,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:23:49,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:23:49,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:23:49,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:23:49,418 INFO L87 Difference]: Start difference. First operand 19422 states and 20277 transitions. Second operand 7 states.