/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:12:07,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:12:07,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:12:07,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:12:07,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:12:07,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:12:07,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:12:07,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:12:07,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:12:07,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:12:07,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:12:07,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:12:07,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:12:07,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:12:07,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:12:07,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:12:07,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:12:07,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:12:07,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:12:07,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:12:07,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:12:07,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:12:07,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:12:07,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:12:07,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:12:07,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:12:07,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:12:07,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:12:07,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:12:07,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:12:07,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:12:07,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:12:07,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:12:07,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:12:07,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:12:07,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:12:07,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:12:07,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:12:07,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:12:07,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:12:07,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:12:07,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 04:12:07,981 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:12:07,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:12:07,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:12:07,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:12:07,984 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:12:07,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:12:07,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:12:07,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:12:07,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:12:07,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:12:07,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:12:07,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:12:07,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:12:07,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:12:07,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:12:07,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:12:07,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:12:07,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:12:07,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:12:07,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:12:07,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:12:07,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:12:07,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:12:07,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:12:07,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:12:07,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:12:07,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:12:07,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:12:07,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:12:07,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:12:08,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:12:08,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:12:08,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:12:08,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:12:08,376 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:12:08,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label09.c [2020-10-14 04:12:08,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e61c5783/44836a6f2b994b6293a5a9f46436b277/FLAGf918fe512 [2020-10-14 04:12:09,339 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:12:09,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label09.c [2020-10-14 04:12:09,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e61c5783/44836a6f2b994b6293a5a9f46436b277/FLAGf918fe512 [2020-10-14 04:12:09,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e61c5783/44836a6f2b994b6293a5a9f46436b277 [2020-10-14 04:12:09,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:12:09,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:12:09,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:12:09,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:12:09,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:12:09,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:12:09" (1/1) ... [2020-10-14 04:12:09,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29eb21d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:09, skipping insertion in model container [2020-10-14 04:12:09,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:12:09" (1/1) ... [2020-10-14 04:12:09,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:12:10,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:12:11,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:12:11,557 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:12:12,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:12:12,158 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:12:12,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12 WrapperNode [2020-10-14 04:12:12,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:12:12,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:12:12,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:12:12,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:12:12,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... [2020-10-14 04:12:12,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:12:12,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:12:12,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:12:12,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:12:12,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:12:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:12:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:12:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 04:12:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 04:12:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 04:12:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:12:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 04:12:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 04:12:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 04:12:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:12:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:12:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:12:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:12:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:12:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:12:19,256 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:12:19,256 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 04:12:19,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:12:19 BoogieIcfgContainer [2020-10-14 04:12:19,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:12:19,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:12:19,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:12:19,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:12:19,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:12:09" (1/3) ... [2020-10-14 04:12:19,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ef27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:12:19, skipping insertion in model container [2020-10-14 04:12:19,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:12:12" (2/3) ... [2020-10-14 04:12:19,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798ef27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:12:19, skipping insertion in model container [2020-10-14 04:12:19,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:12:19" (3/3) ... [2020-10-14 04:12:19,275 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label09.c [2020-10-14 04:12:19,286 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:12:19,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:12:19,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:12:19,336 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:12:19,336 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:12:19,336 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:12:19,336 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:12:19,337 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:12:19,337 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:12:19,337 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:12:19,337 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:12:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 04:12:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 04:12:19,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:12:19,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:12:19,380 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:12:19,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:12:19,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1027739615, now seen corresponding path program 1 times [2020-10-14 04:12:19,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:12:19,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248491269] [2020-10-14 04:12:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:12:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:19,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:19,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:19,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 04:12:19,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:19,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-14 04:12:19,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:19,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:12:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:12:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 04:12:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:12:19,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:12:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:19,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:19,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:12:19,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:19,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 04:12:19,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:19,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:12:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:12:19,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:12:19,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:12:19,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248491269] [2020-10-14 04:12:19,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:12:19,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:12:19,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624863345] [2020-10-14 04:12:19,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:12:19,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:12:20,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:12:20,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:12:20,017 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-14 04:12:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:12:27,769 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 04:12:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:12:27,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-14 04:12:27,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:12:27,804 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 04:12:27,804 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 04:12:27,818 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 04:12:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 04:12:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 04:12:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 04:12:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2229 transitions. [2020-10-14 04:12:27,990 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2229 transitions. Word has length 16 [2020-10-14 04:12:27,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:12:27,990 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2229 transitions. [2020-10-14 04:12:27,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:12:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2229 transitions. [2020-10-14 04:12:27,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 04:12:27,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:12:27,998 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:12:27,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:12:28,000 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:12:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:12:28,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1133969788, now seen corresponding path program 1 times [2020-10-14 04:12:28,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:12:28,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929480800] [2020-10-14 04:12:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:12:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:28,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:28,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 04:12:28,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-14 04:12:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:28,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:12:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:12:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:12:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:28,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:12:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:28,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:28,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:12:28,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:12:28,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:28,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:12:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:12:28,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:12:28,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:12:28,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:12:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:28,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:28,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:28,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:12:28,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:28,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 04:12:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:28,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:12:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:12:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:12:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:12:28,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929480800] [2020-10-14 04:12:28,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:12:28,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:12:28,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850072747] [2020-10-14 04:12:29,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:12:29,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:12:29,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:12:29,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:12:29,004 INFO L87 Difference]: Start difference. First operand 1425 states and 2229 transitions. Second operand 7 states. [2020-10-14 04:12:38,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:12:38,914 INFO L93 Difference]: Finished difference Result 4326 states and 6803 transitions. [2020-10-14 04:12:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:12:38,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2020-10-14 04:12:38,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:12:38,932 INFO L225 Difference]: With dead ends: 4326 [2020-10-14 04:12:38,932 INFO L226 Difference]: Without dead ends: 2907 [2020-10-14 04:12:38,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:12:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2020-10-14 04:12:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2872. [2020-10-14 04:12:39,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2872 states. [2020-10-14 04:12:39,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 3869 transitions. [2020-10-14 04:12:39,044 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 3869 transitions. Word has length 86 [2020-10-14 04:12:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:12:39,046 INFO L479 AbstractCegarLoop]: Abstraction has 2872 states and 3869 transitions. [2020-10-14 04:12:39,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:12:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 3869 transitions. [2020-10-14 04:12:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 04:12:39,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:12:39,055 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:12:39,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:12:39,056 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:12:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:12:39,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1804580500, now seen corresponding path program 1 times [2020-10-14 04:12:39,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:12:39,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14186309] [2020-10-14 04:12:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:12:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:39,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:39,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:39,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:39,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 04:12:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:12:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-14 04:12:39,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:39,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:12:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-14 04:12:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:12:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:39,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:12:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:39,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:39,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:12:39,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:12:39,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:39,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:12:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:12:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:12:39,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:12:39,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:12:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:39,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:39,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:39,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-14 04:12:39,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:39,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 04:12:39,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:39,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:39,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:12:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:12:39,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 04:12:39,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:12:40,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14186309] [2020-10-14 04:12:40,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:12:40,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:12:40,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91450019] [2020-10-14 04:12:40,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:12:40,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:12:40,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:12:40,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:12:40,040 INFO L87 Difference]: Start difference. First operand 2872 states and 3869 transitions. Second operand 5 states. [2020-10-14 04:12:49,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:12:49,303 INFO L93 Difference]: Finished difference Result 7169 states and 9970 transitions. [2020-10-14 04:12:49,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:12:49,305 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-14 04:12:49,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:12:49,329 INFO L225 Difference]: With dead ends: 7169 [2020-10-14 04:12:49,329 INFO L226 Difference]: Without dead ends: 4303 [2020-10-14 04:12:49,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:12:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2020-10-14 04:12:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4299. [2020-10-14 04:12:49,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4299 states. [2020-10-14 04:12:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 5508 transitions. [2020-10-14 04:12:49,457 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 5508 transitions. Word has length 106 [2020-10-14 04:12:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:12:49,458 INFO L479 AbstractCegarLoop]: Abstraction has 4299 states and 5508 transitions. [2020-10-14 04:12:49,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:12:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 5508 transitions. [2020-10-14 04:12:49,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-14 04:12:49,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:12:49,461 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:12:49,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:12:49,461 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:12:49,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:12:49,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1112355739, now seen corresponding path program 1 times [2020-10-14 04:12:49,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:12:49,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572276320] [2020-10-14 04:12:49,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:12:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:49,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:49,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:49,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:12:49,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:49,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-14 04:12:49,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:49,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:49,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:12:49,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 04:12:49,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:12:49,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:12:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:50,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:50,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:50,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:12:50,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:50,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 04:12:50,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:50,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:12:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:12:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:12:50,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:50,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:12:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:12:50,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:12:50,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:12:50,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:12:50,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:12:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-14 04:12:50,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:12:50,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:12:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:12:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:12:50,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:12:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:12:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:12:50,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572276320] [2020-10-14 04:12:50,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:12:50,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:12:50,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451924084] [2020-10-14 04:12:50,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:12:50,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:12:50,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:12:50,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:12:50,494 INFO L87 Difference]: Start difference. First operand 4299 states and 5508 transitions. Second operand 7 states. [2020-10-14 04:13:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:05,124 INFO L93 Difference]: Finished difference Result 11594 states and 15212 transitions. [2020-10-14 04:13:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:13:05,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-10-14 04:13:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:05,165 INFO L225 Difference]: With dead ends: 11594 [2020-10-14 04:13:05,165 INFO L226 Difference]: Without dead ends: 7301 [2020-10-14 04:13:05,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:13:05,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2020-10-14 04:13:05,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 6567. [2020-10-14 04:13:05,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6567 states. [2020-10-14 04:13:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6567 states to 6567 states and 8136 transitions. [2020-10-14 04:13:05,356 INFO L78 Accepts]: Start accepts. Automaton has 6567 states and 8136 transitions. Word has length 113 [2020-10-14 04:13:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:05,357 INFO L479 AbstractCegarLoop]: Abstraction has 6567 states and 8136 transitions. [2020-10-14 04:13:05,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:13:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 6567 states and 8136 transitions. [2020-10-14 04:13:05,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-10-14 04:13:05,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:05,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:05,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:13:05,368 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:05,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:05,369 INFO L82 PathProgramCache]: Analyzing trace with hash 958173047, now seen corresponding path program 1 times [2020-10-14 04:13:05,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:05,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62650010] [2020-10-14 04:13:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:05,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:05,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:10,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:10,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 434 [2020-10-14 04:13:10,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:13:10,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4903 [2020-10-14 04:13:10,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:10,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 316 [2020-10-14 04:13:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:13:10,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:10,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:10,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:10,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:10,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:10,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:13:10,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:10,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:10,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:10,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:10,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:10,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:10,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:10,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:13:10,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 04:13:10,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:10,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:10,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:10,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 04:13:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:10,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:13:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:10,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:11,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:11,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:13:11,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 04:13:11,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:11,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:11,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:13:11,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 04:13:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:11,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:11,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:11,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:13:11,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 04:13:11,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:11,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:13:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:13:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:13:12,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62650010] [2020-10-14 04:13:12,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:12,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:13:12,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143468752] [2020-10-14 04:13:12,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:13:12,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:12,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:13:12,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:13:12,142 INFO L87 Difference]: Start difference. First operand 6567 states and 8136 transitions. Second operand 7 states. [2020-10-14 04:13:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:24,779 INFO L93 Difference]: Finished difference Result 16127 states and 19786 transitions. [2020-10-14 04:13:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:13:24,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 420 [2020-10-14 04:13:24,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:24,834 INFO L225 Difference]: With dead ends: 16127 [2020-10-14 04:13:24,835 INFO L226 Difference]: Without dead ends: 9566 [2020-10-14 04:13:24,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:13:24,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9566 states. [2020-10-14 04:13:25,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9566 to 9499. [2020-10-14 04:13:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9499 states. [2020-10-14 04:13:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9499 states to 9499 states and 11309 transitions. [2020-10-14 04:13:25,117 INFO L78 Accepts]: Start accepts. Automaton has 9499 states and 11309 transitions. Word has length 420 [2020-10-14 04:13:25,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:25,118 INFO L479 AbstractCegarLoop]: Abstraction has 9499 states and 11309 transitions. [2020-10-14 04:13:25,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:13:25,119 INFO L276 IsEmpty]: Start isEmpty. Operand 9499 states and 11309 transitions. [2020-10-14 04:13:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2020-10-14 04:13:25,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:25,128 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:25,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:13:25,129 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:25,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:25,129 INFO L82 PathProgramCache]: Analyzing trace with hash 43420737, now seen corresponding path program 1 times [2020-10-14 04:13:25,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:25,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580143438] [2020-10-14 04:13:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:25,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:25,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:28,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:28,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 441 [2020-10-14 04:13:28,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:13:28,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3630 [2020-10-14 04:13:28,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:28,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-14 04:13:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:13:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:28,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:28,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:28,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:28,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:28,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:28,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:13:28,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:28,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:28,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:28,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:29,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:29,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 04:13:29,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:29,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 04:13:29,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:29,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 04:13:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:13:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:29,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:29,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:29,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 04:13:29,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 04:13:29,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:29,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:13:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:29,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 04:13:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:29,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:29,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:29,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:13:29,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 04:13:29,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:29,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:13:29,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:13:29,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:13:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:13:29,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580143438] [2020-10-14 04:13:29,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:29,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:13:29,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147179670] [2020-10-14 04:13:29,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:13:29,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:29,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:13:29,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:13:29,900 INFO L87 Difference]: Start difference. First operand 9499 states and 11309 transitions. Second operand 7 states. [2020-10-14 04:13:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:43,584 INFO L93 Difference]: Finished difference Result 25787 states and 31334 transitions. [2020-10-14 04:13:43,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:13:43,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 427 [2020-10-14 04:13:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:43,652 INFO L225 Difference]: With dead ends: 25787 [2020-10-14 04:13:43,652 INFO L226 Difference]: Without dead ends: 16294 [2020-10-14 04:13:43,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:13:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16294 states. [2020-10-14 04:13:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16294 to 15424. [2020-10-14 04:13:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15424 states. [2020-10-14 04:13:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15424 states to 15424 states and 17860 transitions. [2020-10-14 04:13:44,002 INFO L78 Accepts]: Start accepts. Automaton has 15424 states and 17860 transitions. Word has length 427 [2020-10-14 04:13:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:44,003 INFO L479 AbstractCegarLoop]: Abstraction has 15424 states and 17860 transitions. [2020-10-14 04:13:44,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:13:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 15424 states and 17860 transitions. [2020-10-14 04:13:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-10-14 04:13:44,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:44,012 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:44,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:13:44,013 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:44,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash -776523702, now seen corresponding path program 1 times [2020-10-14 04:13:44,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:44,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594123199] [2020-10-14 04:13:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:44,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:44,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:47,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:47,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 455 [2020-10-14 04:13:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:13:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3494 [2020-10-14 04:13:47,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:47,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 316 [2020-10-14 04:13:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 04:13:47,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:47,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:13:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:47,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:47,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:47,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:13:47,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:47,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:13:47,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:47,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:13:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:13:47,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:13:47,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:13:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:47,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:47,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:47,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:47,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 04:13:47,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:13:47,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:13:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:47,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:48,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:48,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:13:48,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:48,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 04:13:48,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:48,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:48,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:13:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:13:48,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:13:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:13:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 04:13:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:13:48,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:13:48,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:13:48,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 04:13:48,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:13:48,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 04:13:48,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:13:48,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:13:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:13:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:13:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 04:13:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:13:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:13:48,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594123199] [2020-10-14 04:13:48,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:13:48,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:13:48,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773396023] [2020-10-14 04:13:48,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:13:48,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:13:48,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:13:48,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:13:48,474 INFO L87 Difference]: Start difference. First operand 15424 states and 17860 transitions. Second operand 7 states. [2020-10-14 04:13:59,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:13:59,374 INFO L93 Difference]: Finished difference Result 36684 states and 43664 transitions. [2020-10-14 04:13:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:13:59,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 441 [2020-10-14 04:13:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:13:59,442 INFO L225 Difference]: With dead ends: 36684 [2020-10-14 04:13:59,443 INFO L226 Difference]: Without dead ends: 21266 [2020-10-14 04:13:59,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:13:59,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21266 states. [2020-10-14 04:13:59,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21266 to 21152. [2020-10-14 04:13:59,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21152 states. [2020-10-14 04:13:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21152 states to 21152 states and 24781 transitions. [2020-10-14 04:13:59,854 INFO L78 Accepts]: Start accepts. Automaton has 21152 states and 24781 transitions. Word has length 441 [2020-10-14 04:13:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:13:59,855 INFO L479 AbstractCegarLoop]: Abstraction has 21152 states and 24781 transitions. [2020-10-14 04:13:59,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:13:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 21152 states and 24781 transitions. [2020-10-14 04:13:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2020-10-14 04:13:59,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:13:59,868 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:13:59,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:13:59,869 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:13:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:13:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1435320879, now seen corresponding path program 1 times [2020-10-14 04:13:59,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:13:59,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623502868] [2020-10-14 04:13:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:13:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:00,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:00,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:00,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:04,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:04,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 540 [2020-10-14 04:14:04,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:14:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 04:14:04,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:04,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-14 04:14:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:14:04,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:05,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:05,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:05,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:05,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:05,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:05,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:05,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:05,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:05,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:05,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:05,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 04:14:05,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:05,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 04:14:05,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:05,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:05,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:05,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 04:14:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:05,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:14:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:05,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:05,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:05,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 04:14:05,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:05,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 04:14:05,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:05,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:05,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 04:14:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 04:14:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:05,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:05,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:05,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:14:05,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 04:14:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:05,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 04:14:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:14:05,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2020-10-14 04:14:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:05,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:05,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:05,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 04:14:05,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:05,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 04:14:05,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:05,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:05,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-14 04:14:05,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:14:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 104 proven. 75 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-14 04:14:06,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623502868] [2020-10-14 04:14:06,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:06,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:14:06,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793107215] [2020-10-14 04:14:06,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:14:06,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:06,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:14:06,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:14:06,047 INFO L87 Difference]: Start difference. First operand 21152 states and 24781 transitions. Second operand 8 states. [2020-10-14 04:14:30,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:30,119 INFO L93 Difference]: Finished difference Result 64129 states and 79330 transitions. [2020-10-14 04:14:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:14:30,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 524 [2020-10-14 04:14:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:30,247 INFO L225 Difference]: With dead ends: 64129 [2020-10-14 04:14:30,247 INFO L226 Difference]: Without dead ends: 42983 [2020-10-14 04:14:30,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:14:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42983 states. [2020-10-14 04:14:30,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42983 to 42146. [2020-10-14 04:14:30,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42146 states. [2020-10-14 04:14:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42146 states to 42146 states and 51230 transitions. [2020-10-14 04:14:31,024 INFO L78 Accepts]: Start accepts. Automaton has 42146 states and 51230 transitions. Word has length 524 [2020-10-14 04:14:31,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:31,025 INFO L479 AbstractCegarLoop]: Abstraction has 42146 states and 51230 transitions. [2020-10-14 04:14:31,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:14:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 42146 states and 51230 transitions. [2020-10-14 04:14:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-14 04:14:31,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:31,072 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:31,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:14:31,072 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:31,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:31,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1992840717, now seen corresponding path program 1 times [2020-10-14 04:14:31,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:31,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117986389] [2020-10-14 04:14:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:32,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1112 [2020-10-14 04:14:33,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1980 [2020-10-14 04:14:33,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 04:14:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 04:14:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:33,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:33,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:14:33,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:14:33,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:14:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:14:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:14:33,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:14:33,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:14:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:14:33,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:33,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:14:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:33,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:33,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:14:33,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:14:33,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:33,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:33,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:33,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:34,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:14:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:34,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:34,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:34,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 04:14:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:34,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 04:14:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:34,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:34,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:14:34,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 04:14:34,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:34,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:34,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:34,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:34,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:14:34,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 328 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-14 04:14:34,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117986389] [2020-10-14 04:14:34,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:34,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:14:34,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343279430] [2020-10-14 04:14:34,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:14:34,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:34,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:14:34,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:14:34,919 INFO L87 Difference]: Start difference. First operand 42146 states and 51230 transitions. Second operand 7 states. [2020-10-14 04:14:51,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:14:51,636 INFO L93 Difference]: Finished difference Result 93675 states and 115860 transitions. [2020-10-14 04:14:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:14:51,637 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1090 [2020-10-14 04:14:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:14:51,823 INFO L225 Difference]: With dead ends: 93675 [2020-10-14 04:14:51,823 INFO L226 Difference]: Without dead ends: 51535 [2020-10-14 04:14:51,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:14:51,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51535 states. [2020-10-14 04:14:52,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51535 to 49321. [2020-10-14 04:14:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49321 states. [2020-10-14 04:14:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49321 states to 49321 states and 59567 transitions. [2020-10-14 04:14:52,774 INFO L78 Accepts]: Start accepts. Automaton has 49321 states and 59567 transitions. Word has length 1090 [2020-10-14 04:14:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:14:52,776 INFO L479 AbstractCegarLoop]: Abstraction has 49321 states and 59567 transitions. [2020-10-14 04:14:52,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:14:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 49321 states and 59567 transitions. [2020-10-14 04:14:52,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1174 [2020-10-14 04:14:52,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:14:52,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:14:52,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:14:52,798 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:14:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:14:52,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1632546844, now seen corresponding path program 1 times [2020-10-14 04:14:52,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:14:52,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527268312] [2020-10-14 04:14:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:14:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:53,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:53,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:55,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1195 [2020-10-14 04:14:58,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:14:58,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 04:14:58,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 04:14:58,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 04:14:58,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:14:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:58,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:14:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:14:58,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 04:14:58,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:58,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:14:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:14:58,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 04:14:58,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:58,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:58,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:14:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:58,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:58,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:14:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:14:58,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 04:14:58,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:58,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 04:14:58,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:14:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:14:58,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 04:14:58,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:14:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:14:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 04:14:58,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:58,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:14:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:58,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:58,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:58,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 04:14:58,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-14 04:14:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:58,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:14:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:14:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 04:14:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:59,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-14 04:14:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:14:59,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:14:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:14:59,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 04:14:59,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:14:59,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 04:14:59,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:14:59,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:14:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:14:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-14 04:14:59,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:14:59,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:14:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 442 proven. 124 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-14 04:14:59,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527268312] [2020-10-14 04:14:59,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:14:59,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:14:59,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210587648] [2020-10-14 04:14:59,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:14:59,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:14:59,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:14:59,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:14:59,834 INFO L87 Difference]: Start difference. First operand 49321 states and 59567 transitions. Second operand 7 states. [2020-10-14 04:15:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:14,824 INFO L93 Difference]: Finished difference Result 117893 states and 145546 transitions. [2020-10-14 04:15:14,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:15:14,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1173 [2020-10-14 04:15:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:15,091 INFO L225 Difference]: With dead ends: 117893 [2020-10-14 04:15:15,091 INFO L226 Difference]: Without dead ends: 68578 [2020-10-14 04:15:15,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 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 04:15:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68578 states. [2020-10-14 04:15:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68578 to 64997. [2020-10-14 04:15:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64997 states. [2020-10-14 04:15:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64997 states to 64997 states and 80364 transitions. [2020-10-14 04:15:16,545 INFO L78 Accepts]: Start accepts. Automaton has 64997 states and 80364 transitions. Word has length 1173 [2020-10-14 04:15:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:16,546 INFO L479 AbstractCegarLoop]: Abstraction has 64997 states and 80364 transitions. [2020-10-14 04:15:16,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 64997 states and 80364 transitions. [2020-10-14 04:15:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2020-10-14 04:15:16,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:16,573 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:15:16,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:15:16,574 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:16,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1234088637, now seen corresponding path program 1 times [2020-10-14 04:15:16,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:16,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406393394] [2020-10-14 04:15:16,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:16,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:17,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:21,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1211 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 04:15:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:21,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:21,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:21,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:21,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:21,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:21,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:22,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:22,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:15:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:15:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:15:22,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 04:15:22,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:15:22,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:15:22,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:22,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:22,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:15:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:15:22,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 04:15:22,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 04:15:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 04:15:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 04:15:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 04:15:22,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 04:15:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:22,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1061 [2020-10-14 04:15:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:22,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:22,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:22,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 04:15:22,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 04:15:22,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:22,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-14 04:15:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 286 proven. 75 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-10-14 04:15:23,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406393394] [2020-10-14 04:15:23,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:23,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:23,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209887370] [2020-10-14 04:15:23,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:23,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:23,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:23,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:23,468 INFO L87 Difference]: Start difference. First operand 64997 states and 80364 transitions. Second operand 7 states. [2020-10-14 04:15:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:15:37,881 INFO L93 Difference]: Finished difference Result 140112 states and 175055 transitions. [2020-10-14 04:15:37,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:15:37,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1187 [2020-10-14 04:15:37,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:15:38,125 INFO L225 Difference]: With dead ends: 140112 [2020-10-14 04:15:38,125 INFO L226 Difference]: Without dead ends: 75121 [2020-10-14 04:15:38,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 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 04:15:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75121 states. [2020-10-14 04:15:39,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75121 to 75040. [2020-10-14 04:15:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75040 states. [2020-10-14 04:15:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75040 states to 75040 states and 93251 transitions. [2020-10-14 04:15:39,168 INFO L78 Accepts]: Start accepts. Automaton has 75040 states and 93251 transitions. Word has length 1187 [2020-10-14 04:15:39,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:15:39,169 INFO L479 AbstractCegarLoop]: Abstraction has 75040 states and 93251 transitions. [2020-10-14 04:15:39,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:15:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 75040 states and 93251 transitions. [2020-10-14 04:15:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2020-10-14 04:15:39,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:15:39,187 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:15:39,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:15:39,188 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:15:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:15:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash -205687473, now seen corresponding path program 1 times [2020-10-14 04:15:39,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:15:39,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744232207] [2020-10-14 04:15:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:15:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:40,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:40,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1225 [2020-10-14 04:15:40,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1228 [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 04:15:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:40,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:15:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:40,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:40,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:40,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:15:40,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:40,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:15:40,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:40,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:40,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 04:15:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:40,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:40,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:40,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:40,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:40,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:40,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:40,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:41,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 04:15:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:41,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 04:15:41,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:41,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:15:41,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:41,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:41,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:41,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:41,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 04:15:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:41,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:15:41,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:41,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 04:15:41,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:41,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:41,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:41,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:41,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:41,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:41,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 04:15:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:41,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:15:41,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:41,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:15:41,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:41,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:41,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:41,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:41,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 04:15:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:41,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 04:15:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:41,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:15:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:41,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:15:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:15:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:41,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-14 04:15:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:41,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 04:15:41,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:41,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 04:15:41,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:41,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:15:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:15:41,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 04:15:41,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:41,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 04:15:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:15:41,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:15:41,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:15:41,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:15:41,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:15:41,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 04:15:41,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:15:41,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:15:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:15:41,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 04:15:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:15:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:15:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-14 04:15:42,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744232207] [2020-10-14 04:15:42,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:15:42,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:15:42,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553496226] [2020-10-14 04:15:42,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:15:42,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:15:42,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:15:42,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:15:42,338 INFO L87 Difference]: Start difference. First operand 75040 states and 93251 transitions. Second operand 7 states.