/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/forester-heap/dll-queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:49:31,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:49:31,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:49:31,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:49:31,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:49:31,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:49:31,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:49:31,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:49:31,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:49:31,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:49:31,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:49:31,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:49:31,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:49:31,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:49:31,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:49:31,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:49:31,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:49:31,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:49:31,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:49:31,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:49:31,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:49:31,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:49:31,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:49:31,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:49:31,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:49:31,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:49:31,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:49:31,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:49:31,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:49:31,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:49:31,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:49:31,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:49:31,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:49:31,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:49:31,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:49:31,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:49:31,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:49:31,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:49:31,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:49:31,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:49:31,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:49:31,912 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 04:49:31,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:49:31,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:49:31,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:49:31,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:49:31,956 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:49:31,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:49:31,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:49:31,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:49:31,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:49:31,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:49:31,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:49:31,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:49:31,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:49:31,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:49:31,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:49:31,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:49:31,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:49:31,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:49:31,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:49:31,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:49:31,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:49:31,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:49:31,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:49:31,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:49:31,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:49:31,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:49:31,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:49:31,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:49:31,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:49:31,962 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 04:49:32,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:49:32,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:49:32,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:49:32,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:49:32,288 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:49:32,289 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-queue-1.i [2020-10-14 04:49:32,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d6ff380a/a0e879acd35c447ba53f7ce2312c5078/FLAGb9822490f [2020-10-14 04:49:32,950 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:49:32,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-queue-1.i [2020-10-14 04:49:32,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d6ff380a/a0e879acd35c447ba53f7ce2312c5078/FLAGb9822490f [2020-10-14 04:49:33,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d6ff380a/a0e879acd35c447ba53f7ce2312c5078 [2020-10-14 04:49:33,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:49:33,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:49:33,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:49:33,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:49:33,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:49:33,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f80c8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33, skipping insertion in model container [2020-10-14 04:49:33,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:49:33,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:49:33,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:49:33,713 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:49:33,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:49:33,846 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:49:33,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33 WrapperNode [2020-10-14 04:49:33,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:49:33,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:49:33,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:49:33,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:49:33,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... [2020-10-14 04:49:33,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:49:33,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:49:33,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:49:33,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:49:33,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:49:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:49:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:49:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:49:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 04:49:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 04:49:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 04:49:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 04:49:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 04:49:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 04:49:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 04:49:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 04:49:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 04:49:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 04:49:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 04:49:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 04:49:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 04:49:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 04:49:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 04:49:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 04:49:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 04:49:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 04:49:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 04:49:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 04:49:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 04:49:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 04:49:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 04:49:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 04:49:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 04:49:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 04:49:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 04:49:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 04:49:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 04:49:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 04:49:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 04:49:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 04:49:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 04:49:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 04:49:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 04:49:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 04:49:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 04:49:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 04:49:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 04:49:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 04:49:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 04:49:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 04:49:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 04:49:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 04:49:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 04:49:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 04:49:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 04:49:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 04:49:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 04:49:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 04:49:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 04:49:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 04:49:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 04:49:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 04:49:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 04:49:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 04:49:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 04:49:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 04:49:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 04:49:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 04:49:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 04:49:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 04:49:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 04:49:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 04:49:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 04:49:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 04:49:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 04:49:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 04:49:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 04:49:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:49:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:49:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:49:34,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:49:34,629 INFO L295 CfgBuilder]: Removed 31 assume(true) statements. [2020-10-14 04:49:34,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:34 BoogieIcfgContainer [2020-10-14 04:49:34,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:49:34,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:49:34,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:49:34,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:49:34,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:49:33" (1/3) ... [2020-10-14 04:49:34,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12edf77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:34, skipping insertion in model container [2020-10-14 04:49:34,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:33" (2/3) ... [2020-10-14 04:49:34,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12edf77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:34, skipping insertion in model container [2020-10-14 04:49:34,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:34" (3/3) ... [2020-10-14 04:49:34,643 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-queue-1.i [2020-10-14 04:49:34,654 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:49:34,662 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2020-10-14 04:49:34,677 INFO L251 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2020-10-14 04:49:34,705 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:49:34,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:49:34,705 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:49:34,706 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:49:34,706 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:49:34,706 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:49:34,706 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:49:34,707 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:49:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-14 04:49:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-14 04:49:34,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:34,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:34,742 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:34,749 INFO L82 PathProgramCache]: Analyzing trace with hash 786631415, now seen corresponding path program 1 times [2020-10-14 04:49:34,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:34,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942866503] [2020-10-14 04:49:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:34,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:34,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 04:49:35,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 04:49:35,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 04:49:35,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:35,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:49:35,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:35,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 04:49:35,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:35,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:35,205 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 04:49:35,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942866503] [2020-10-14 04:49:35,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:35,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 04:49:35,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211515320] [2020-10-14 04:49:35,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 04:49:35,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:35,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 04:49:35,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 04:49:35,235 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 3 states. [2020-10-14 04:49:35,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:35,463 INFO L93 Difference]: Finished difference Result 174 states and 284 transitions. [2020-10-14 04:49:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 04:49:35,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-14 04:49:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:35,478 INFO L225 Difference]: With dead ends: 174 [2020-10-14 04:49:35,479 INFO L226 Difference]: Without dead ends: 84 [2020-10-14 04:49:35,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 04:49:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-14 04:49:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-14 04:49:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-14 04:49:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2020-10-14 04:49:35,531 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 9 [2020-10-14 04:49:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:35,532 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2020-10-14 04:49:35,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 04:49:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2020-10-14 04:49:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-14 04:49:35,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:35,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:35,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:49:35,534 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:35,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:35,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1385985618, now seen corresponding path program 1 times [2020-10-14 04:49:35,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:35,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375711307] [2020-10-14 04:49:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 04:49:35,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:35,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 04:49:35,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:35,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:35,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 04:49:35,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:35,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:35,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:35,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:35,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:49:35,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:35,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:35,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:35,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:35,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:35,676 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 04:49:35,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375711307] [2020-10-14 04:49:35,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:35,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:35,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691987647] [2020-10-14 04:49:35,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:35,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:35,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:35,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:35,680 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand 4 states. [2020-10-14 04:49:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:35,883 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-10-14 04:49:35,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:35,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-14 04:49:35,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:35,886 INFO L225 Difference]: With dead ends: 84 [2020-10-14 04:49:35,886 INFO L226 Difference]: Without dead ends: 74 [2020-10-14 04:49:35,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-14 04:49:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-14 04:49:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-14 04:49:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-10-14 04:49:35,899 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 10 [2020-10-14 04:49:35,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:35,899 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-10-14 04:49:35,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:35,900 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2020-10-14 04:49:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 04:49:35,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:35,901 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:35,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:49:35,901 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:35,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:35,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1923530661, now seen corresponding path program 1 times [2020-10-14 04:49:35,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:35,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891991156] [2020-10-14 04:49:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:35,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 04:49:36,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 04:49:36,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 04:49:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 04:49:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:36,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:36,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:49:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:36,063 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 04:49:36,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891991156] [2020-10-14 04:49:36,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:36,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:36,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653853416] [2020-10-14 04:49:36,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:36,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:36,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:36,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,066 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 4 states. [2020-10-14 04:49:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:36,232 INFO L93 Difference]: Finished difference Result 74 states and 83 transitions. [2020-10-14 04:49:36,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:36,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 04:49:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:36,234 INFO L225 Difference]: With dead ends: 74 [2020-10-14 04:49:36,234 INFO L226 Difference]: Without dead ends: 72 [2020-10-14 04:49:36,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-14 04:49:36,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-14 04:49:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-14 04:49:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2020-10-14 04:49:36,245 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 13 [2020-10-14 04:49:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:36,245 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2020-10-14 04:49:36,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2020-10-14 04:49:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 04:49:36,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:36,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:36,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:49:36,251 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:36,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:36,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1449483421, now seen corresponding path program 1 times [2020-10-14 04:49:36,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:36,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701597252] [2020-10-14 04:49:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:49:36,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 04:49:36,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:36,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:49:36,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:36,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:36,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:36,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:36,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:36,358 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 04:49:36,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701597252] [2020-10-14 04:49:36,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:36,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:36,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469473194] [2020-10-14 04:49:36,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:36,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:36,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:36,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,361 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 4 states. [2020-10-14 04:49:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:36,501 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2020-10-14 04:49:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:36,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-14 04:49:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:36,502 INFO L225 Difference]: With dead ends: 157 [2020-10-14 04:49:36,503 INFO L226 Difference]: Without dead ends: 91 [2020-10-14 04:49:36,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-14 04:49:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 80. [2020-10-14 04:49:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-14 04:49:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2020-10-14 04:49:36,513 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 16 [2020-10-14 04:49:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:36,514 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2020-10-14 04:49:36,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:36,514 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2020-10-14 04:49:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 04:49:36,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:36,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:36,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:49:36,516 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:36,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1095322203, now seen corresponding path program 1 times [2020-10-14 04:49:36,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:36,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506109548] [2020-10-14 04:49:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 04:49:36,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:49:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 04:49:36,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 04:49:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:36,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:36,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:36,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:36,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:36,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:36,760 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 04:49:36,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506109548] [2020-10-14 04:49:36,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:36,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:36,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214163050] [2020-10-14 04:49:36,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:36,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:36,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:36,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,763 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 4 states. [2020-10-14 04:49:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:36,878 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2020-10-14 04:49:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:36,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-14 04:49:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:36,879 INFO L225 Difference]: With dead ends: 83 [2020-10-14 04:49:36,880 INFO L226 Difference]: Without dead ends: 81 [2020-10-14 04:49:36,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-14 04:49:36,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-14 04:49:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 04:49:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2020-10-14 04:49:36,888 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 21 [2020-10-14 04:49:36,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:36,889 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2020-10-14 04:49:36,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2020-10-14 04:49:36,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-14 04:49:36,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:36,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:36,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:49:36,891 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:36,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:36,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1095324125, now seen corresponding path program 1 times [2020-10-14 04:49:36,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:36,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833972465] [2020-10-14 04:49:36,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:36,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 04:49:37,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:37,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 04:49:37,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:37,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 04:49:37,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:37,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:37,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:37,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:37,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:37,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:37,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,135 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 04:49:37,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833972465] [2020-10-14 04:49:37,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:37,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:37,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000568347] [2020-10-14 04:49:37,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:37,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:37,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:37,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:37,140 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 5 states. [2020-10-14 04:49:37,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:37,297 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2020-10-14 04:49:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:49:37,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-14 04:49:37,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:37,299 INFO L225 Difference]: With dead ends: 101 [2020-10-14 04:49:37,300 INFO L226 Difference]: Without dead ends: 76 [2020-10-14 04:49:37,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:37,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-14 04:49:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-14 04:49:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 04:49:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-14 04:49:37,308 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 21 [2020-10-14 04:49:37,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:37,308 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-14 04:49:37,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:37,308 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-14 04:49:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 04:49:37,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:37,310 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:37,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:49:37,310 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:37,311 INFO L82 PathProgramCache]: Analyzing trace with hash -648846271, now seen corresponding path program 1 times [2020-10-14 04:49:37,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:37,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800630828] [2020-10-14 04:49:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 04:49:37,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:37,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 04:49:37,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:49:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:37,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 04:49:37,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:37,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:37,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:37,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:37,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:37,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:37,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:37,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:37,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800630828] [2020-10-14 04:49:37,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:37,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:49:37,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479711400] [2020-10-14 04:49:37,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:49:37,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:37,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:49:37,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:49:37,526 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 7 states. [2020-10-14 04:49:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:37,769 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2020-10-14 04:49:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:49:37,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-14 04:49:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:37,771 INFO L225 Difference]: With dead ends: 140 [2020-10-14 04:49:37,771 INFO L226 Difference]: Without dead ends: 138 [2020-10-14 04:49:37,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-14 04:49:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 89. [2020-10-14 04:49:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-14 04:49:37,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2020-10-14 04:49:37,794 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 23 [2020-10-14 04:49:37,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:37,795 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2020-10-14 04:49:37,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:49:37,795 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2020-10-14 04:49:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:49:37,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:37,796 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:37,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:49:37,796 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:37,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:37,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1678311806, now seen corresponding path program 1 times [2020-10-14 04:49:37,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:37,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184111554] [2020-10-14 04:49:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:37,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:38,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 04:49:38,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:49:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-14 04:49:38,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:38,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:38,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 04:49:38,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 04:49:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:38,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:38,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:38,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:38,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:38,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:38,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:38,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184111554] [2020-10-14 04:49:38,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:38,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:38,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525174465] [2020-10-14 04:49:38,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:38,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:38,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:38,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:38,105 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand 4 states. [2020-10-14 04:49:38,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:38,254 INFO L93 Difference]: Finished difference Result 182 states and 211 transitions. [2020-10-14 04:49:38,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:38,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-14 04:49:38,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:38,257 INFO L225 Difference]: With dead ends: 182 [2020-10-14 04:49:38,257 INFO L226 Difference]: Without dead ends: 115 [2020-10-14 04:49:38,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:38,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-14 04:49:38,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2020-10-14 04:49:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-14 04:49:38,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2020-10-14 04:49:38,281 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 24 [2020-10-14 04:49:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:38,285 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2020-10-14 04:49:38,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2020-10-14 04:49:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 04:49:38,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:38,289 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:49:38,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:49:38,290 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:38,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:38,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1104964543, now seen corresponding path program 1 times [2020-10-14 04:49:38,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:38,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856092077] [2020-10-14 04:49:38,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:38,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:49:38,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:38,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-14 04:49:38,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:38,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 04:49:38,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:49:38,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:38,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:38,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:38,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:38,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:38,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:38,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:38,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:38,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856092077] [2020-10-14 04:49:38,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:38,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:38,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372060018] [2020-10-14 04:49:38,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:38,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:38,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:38,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:38,685 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 4 states. [2020-10-14 04:49:38,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:38,853 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2020-10-14 04:49:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:38,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-14 04:49:38,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:38,855 INFO L225 Difference]: With dead ends: 209 [2020-10-14 04:49:38,856 INFO L226 Difference]: Without dead ends: 128 [2020-10-14 04:49:38,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-14 04:49:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 114. [2020-10-14 04:49:38,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-14 04:49:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2020-10-14 04:49:38,868 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 28 [2020-10-14 04:49:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:38,868 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2020-10-14 04:49:38,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:38,869 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2020-10-14 04:49:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 04:49:38,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:38,878 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:38,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:49:38,878 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:38,879 INFO L82 PathProgramCache]: Analyzing trace with hash -795743119, now seen corresponding path program 1 times [2020-10-14 04:49:38,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:38,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212271416] [2020-10-14 04:49:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:38,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:38,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:39,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 04:49:39,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:39,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-14 04:49:39,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:39,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:39,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:49:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:39,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:39,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:39,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:39,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:39,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:39,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:39,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:39,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:39,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:39,274 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:49:39,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212271416] [2020-10-14 04:49:39,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:39,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:39,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595910601] [2020-10-14 04:49:39,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:39,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:39,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:39,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:39,277 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand 4 states. [2020-10-14 04:49:39,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:39,439 INFO L93 Difference]: Finished difference Result 191 states and 217 transitions. [2020-10-14 04:49:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:39,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-14 04:49:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:39,441 INFO L225 Difference]: With dead ends: 191 [2020-10-14 04:49:39,441 INFO L226 Difference]: Without dead ends: 99 [2020-10-14 04:49:39,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:39,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-14 04:49:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2020-10-14 04:49:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-14 04:49:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2020-10-14 04:49:39,450 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 31 [2020-10-14 04:49:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:39,450 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2020-10-14 04:49:39,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2020-10-14 04:49:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 04:49:39,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:39,453 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:39,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:49:39,453 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:39,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1419476814, now seen corresponding path program 1 times [2020-10-14 04:49:39,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:39,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449059497] [2020-10-14 04:49:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:39,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:39,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:49:39,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 04:49:39,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:39,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:49:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 04:49:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:39,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:39,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:39,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:39,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:39,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:39,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:39,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:39,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:39,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:39,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 04:49:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:39,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449059497] [2020-10-14 04:49:39,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:39,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:49:39,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029966348] [2020-10-14 04:49:39,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:39,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:39,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:39,905 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 8 states. [2020-10-14 04:49:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:40,113 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2020-10-14 04:49:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:49:40,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-10-14 04:49:40,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:40,114 INFO L225 Difference]: With dead ends: 87 [2020-10-14 04:49:40,114 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 04:49:40,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:40,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 04:49:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-14 04:49:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-14 04:49:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2020-10-14 04:49:40,123 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 32 [2020-10-14 04:49:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:40,123 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2020-10-14 04:49:40,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2020-10-14 04:49:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 04:49:40,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:40,127 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:49:40,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:49:40,127 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash 922997175, now seen corresponding path program 1 times [2020-10-14 04:49:40,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:40,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149247079] [2020-10-14 04:49:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:40,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:40,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 04:49:40,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-14 04:49:40,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:40,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:49:40,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 04:49:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:49:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:40,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:40,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:40,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:40,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:40,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:40,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:40,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:40,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:40,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:40,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:40,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149247079] [2020-10-14 04:49:40,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:40,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:49:40,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554158511] [2020-10-14 04:49:40,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:40,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:40,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:40,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:40,492 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 8 states. [2020-10-14 04:49:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:40,881 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2020-10-14 04:49:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:49:40,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-10-14 04:49:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:40,883 INFO L225 Difference]: With dead ends: 108 [2020-10-14 04:49:40,883 INFO L226 Difference]: Without dead ends: 106 [2020-10-14 04:49:40,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:40,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-14 04:49:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 91. [2020-10-14 04:49:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-14 04:49:40,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2020-10-14 04:49:40,889 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 33 [2020-10-14 04:49:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:40,890 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2020-10-14 04:49:40,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:40,890 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2020-10-14 04:49:40,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 04:49:40,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:40,891 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:40,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:49:40,891 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:40,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:40,892 INFO L82 PathProgramCache]: Analyzing trace with hash 699517325, now seen corresponding path program 1 times [2020-10-14 04:49:40,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:40,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23533406] [2020-10-14 04:49:40,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:40,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:41,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:41,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 04:49:41,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:49:41,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 04:49:41,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:41,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:41,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:49:41,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:41,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:41,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:41,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:41,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:41,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:41,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:41,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:49:41,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23533406] [2020-10-14 04:49:41,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:41,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:41,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915831177] [2020-10-14 04:49:41,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:41,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:41,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:41,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:41,224 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand 4 states. [2020-10-14 04:49:41,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:41,360 INFO L93 Difference]: Finished difference Result 151 states and 166 transitions. [2020-10-14 04:49:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:41,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-14 04:49:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:41,361 INFO L225 Difference]: With dead ends: 151 [2020-10-14 04:49:41,361 INFO L226 Difference]: Without dead ends: 117 [2020-10-14 04:49:41,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:41,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-14 04:49:41,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2020-10-14 04:49:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 04:49:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2020-10-14 04:49:41,368 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 33 [2020-10-14 04:49:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:41,368 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2020-10-14 04:49:41,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2020-10-14 04:49:41,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-14 04:49:41,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:41,369 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:41,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:49:41,370 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:41,370 INFO L82 PathProgramCache]: Analyzing trace with hash -610162986, now seen corresponding path program 1 times [2020-10-14 04:49:41,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:41,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357405183] [2020-10-14 04:49:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:41,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:41,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 04:49:41,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 04:49:41,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:41,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:49:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 04:49:41,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:41,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:41,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:41,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:41,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:41,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:41,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:41,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357405183] [2020-10-14 04:49:41,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:41,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:49:41,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23105798] [2020-10-14 04:49:41,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:41,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:41,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:41,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:41,730 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand 8 states. [2020-10-14 04:49:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:42,035 INFO L93 Difference]: Finished difference Result 128 states and 140 transitions. [2020-10-14 04:49:42,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:42,035 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2020-10-14 04:49:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:42,036 INFO L225 Difference]: With dead ends: 128 [2020-10-14 04:49:42,036 INFO L226 Difference]: Without dead ends: 126 [2020-10-14 04:49:42,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-14 04:49:42,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 109. [2020-10-14 04:49:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-14 04:49:42,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2020-10-14 04:49:42,044 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 35 [2020-10-14 04:49:42,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:42,044 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2020-10-14 04:49:42,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:42,044 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2020-10-14 04:49:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 04:49:42,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:42,045 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:42,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 04:49:42,045 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:42,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:42,046 INFO L82 PathProgramCache]: Analyzing trace with hash -2040823409, now seen corresponding path program 1 times [2020-10-14 04:49:42,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:42,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898022244] [2020-10-14 04:49:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:42,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:42,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 04:49:42,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:42,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-14 04:49:42,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:42,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:42,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:42,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 04:49:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:42,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:42,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:42,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:42,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:42,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:42,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:42,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 04:49:42,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898022244] [2020-10-14 04:49:42,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:42,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:42,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21017187] [2020-10-14 04:49:42,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:42,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:42,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:42,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:42,397 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand 4 states. [2020-10-14 04:49:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:42,561 INFO L93 Difference]: Finished difference Result 137 states and 151 transitions. [2020-10-14 04:49:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:42,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-14 04:49:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:42,563 INFO L225 Difference]: With dead ends: 137 [2020-10-14 04:49:42,563 INFO L226 Difference]: Without dead ends: 124 [2020-10-14 04:49:42,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-14 04:49:42,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2020-10-14 04:49:42,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-14 04:49:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2020-10-14 04:49:42,572 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 36 [2020-10-14 04:49:42,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:42,573 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2020-10-14 04:49:42,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:42,574 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2020-10-14 04:49:42,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 04:49:42,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:42,575 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 04:49:42,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 04:49:42,575 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:42,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:42,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1026206209, now seen corresponding path program 1 times [2020-10-14 04:49:42,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:42,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146405037] [2020-10-14 04:49:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:42,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:42,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:43,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:43,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:43,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:49:43,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 04:49:43,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1071 [2020-10-14 04:49:43,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:43,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 04:49:43,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 04:49:43,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:43,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:43,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:43,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:43,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:43,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:43,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:43,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:43,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:43,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:43,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146405037] [2020-10-14 04:49:43,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:43,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:43,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977118105] [2020-10-14 04:49:43,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:43,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:43,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:43,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:43,714 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 5 states. [2020-10-14 04:49:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:43,918 INFO L93 Difference]: Finished difference Result 120 states and 131 transitions. [2020-10-14 04:49:43,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:49:43,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-10-14 04:49:43,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:43,921 INFO L225 Difference]: With dead ends: 120 [2020-10-14 04:49:43,921 INFO L226 Difference]: Without dead ends: 109 [2020-10-14 04:49:43,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-14 04:49:43,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-14 04:49:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-14 04:49:43,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 116 transitions. [2020-10-14 04:49:43,934 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 116 transitions. Word has length 41 [2020-10-14 04:49:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:43,935 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 116 transitions. [2020-10-14 04:49:43,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 116 transitions. [2020-10-14 04:49:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-14 04:49:43,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:43,936 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:43,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 04:49:43,937 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:43,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1727270787, now seen corresponding path program 1 times [2020-10-14 04:49:43,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:43,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356269698] [2020-10-14 04:49:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:43,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:44,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:44,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 04:49:44,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 04:49:44,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:44,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:49:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 04:49:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:44,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:44,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:44,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:44,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:44,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:44,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:44,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:44,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:44,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356269698] [2020-10-14 04:49:44,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:44,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:49:44,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042811060] [2020-10-14 04:49:44,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:49:44,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:44,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:49:44,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:44,402 INFO L87 Difference]: Start difference. First operand 109 states and 116 transitions. Second operand 9 states. [2020-10-14 04:49:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:44,800 INFO L93 Difference]: Finished difference Result 129 states and 138 transitions. [2020-10-14 04:49:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:49:44,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-10-14 04:49:44,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:44,801 INFO L225 Difference]: With dead ends: 129 [2020-10-14 04:49:44,801 INFO L226 Difference]: Without dead ends: 92 [2020-10-14 04:49:44,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:49:44,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-14 04:49:44,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-10-14 04:49:44,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-14 04:49:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2020-10-14 04:49:44,808 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 41 [2020-10-14 04:49:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:44,808 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2020-10-14 04:49:44,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:49:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2020-10-14 04:49:44,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-14 04:49:44,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:44,809 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:44,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 04:49:44,809 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:44,810 INFO L82 PathProgramCache]: Analyzing trace with hash -872603692, now seen corresponding path program 1 times [2020-10-14 04:49:44,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:44,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711689080] [2020-10-14 04:49:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:44,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:45,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:45,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 04:49:45,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-10-14 04:49:45,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:45,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:49:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 04:49:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:45,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:45,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:45,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:45,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:45,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:45,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:45,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:45,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:45,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:45,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 04:49:45,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711689080] [2020-10-14 04:49:45,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:45,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:49:45,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917075132] [2020-10-14 04:49:45,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:45,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:45,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:45,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:45,494 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand 8 states. [2020-10-14 04:49:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:45,683 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2020-10-14 04:49:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:49:45,684 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-14 04:49:45,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:45,685 INFO L225 Difference]: With dead ends: 92 [2020-10-14 04:49:45,685 INFO L226 Difference]: Without dead ends: 90 [2020-10-14 04:49:45,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-14 04:49:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-10-14 04:49:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 04:49:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2020-10-14 04:49:45,694 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 42 [2020-10-14 04:49:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:45,694 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2020-10-14 04:49:45,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2020-10-14 04:49:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 04:49:45,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:45,695 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:45,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 04:49:45,697 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:45,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash 869745041, now seen corresponding path program 1 times [2020-10-14 04:49:45,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:45,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84763113] [2020-10-14 04:49:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:45,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 04:49:46,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-14 04:49:46,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:49:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 04:49:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:46,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:46,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:46,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:46,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:46,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84763113] [2020-10-14 04:49:46,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:46,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:49:46,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574259266] [2020-10-14 04:49:46,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:49:46,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:46,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:49:46,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:49:46,241 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand 10 states. [2020-10-14 04:49:46,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:46,661 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2020-10-14 04:49:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:49:46,661 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-10-14 04:49:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:46,662 INFO L225 Difference]: With dead ends: 113 [2020-10-14 04:49:46,662 INFO L226 Difference]: Without dead ends: 111 [2020-10-14 04:49:46,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:49:46,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-14 04:49:46,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2020-10-14 04:49:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-14 04:49:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 103 transitions. [2020-10-14 04:49:46,669 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 103 transitions. Word has length 44 [2020-10-14 04:49:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:46,669 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 103 transitions. [2020-10-14 04:49:46,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:49:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 103 transitions. [2020-10-14 04:49:46,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 04:49:46,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:46,670 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:46,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 04:49:46,671 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:46,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:46,671 INFO L82 PathProgramCache]: Analyzing trace with hash 410027869, now seen corresponding path program 1 times [2020-10-14 04:49:46,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:46,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324499981] [2020-10-14 04:49:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:47,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 04:49:47,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-14 04:49:47,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:47,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 04:49:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 04:49:47,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:47,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:47,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:47,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:47,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:47,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:47,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:47,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 04:49:47,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324499981] [2020-10-14 04:49:47,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:47,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:47,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270304925] [2020-10-14 04:49:47,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:47,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:47,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:47,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:47,199 INFO L87 Difference]: Start difference. First operand 99 states and 103 transitions. Second operand 4 states. [2020-10-14 04:49:47,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:47,329 INFO L93 Difference]: Finished difference Result 123 states and 127 transitions. [2020-10-14 04:49:47,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:47,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-14 04:49:47,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:47,330 INFO L225 Difference]: With dead ends: 123 [2020-10-14 04:49:47,330 INFO L226 Difference]: Without dead ends: 101 [2020-10-14 04:49:47,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:47,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-14 04:49:47,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 88. [2020-10-14 04:49:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-14 04:49:47,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions. [2020-10-14 04:49:47,339 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 44 [2020-10-14 04:49:47,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:47,339 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions. [2020-10-14 04:49:47,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions. [2020-10-14 04:49:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:49:47,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:47,340 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:47,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 04:49:47,340 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:47,341 INFO L82 PathProgramCache]: Analyzing trace with hash -479677976, now seen corresponding path program 1 times [2020-10-14 04:49:47,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:47,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803240860] [2020-10-14 04:49:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:47,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:49:47,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:47,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-14 04:49:47,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:47,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 04:49:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:49:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:48,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:48,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:48,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:48,023 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 04:49:48,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803240860] [2020-10-14 04:49:48,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:48,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:48,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337429665] [2020-10-14 04:49:48,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:48,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:48,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:48,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:48,025 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand 4 states. [2020-10-14 04:49:48,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:48,182 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2020-10-14 04:49:48,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:48,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-14 04:49:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:48,184 INFO L225 Difference]: With dead ends: 112 [2020-10-14 04:49:48,184 INFO L226 Difference]: Without dead ends: 101 [2020-10-14 04:49:48,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:48,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-14 04:49:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 88. [2020-10-14 04:49:48,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-14 04:49:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2020-10-14 04:49:48,191 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 45 [2020-10-14 04:49:48,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:48,191 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2020-10-14 04:49:48,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2020-10-14 04:49:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:49:48,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:48,192 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:48,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 04:49:48,192 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:48,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1704581452, now seen corresponding path program 1 times [2020-10-14 04:49:48,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:48,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708554514] [2020-10-14 04:49:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:49:48,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-14 04:49:48,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:49:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 04:49:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:48,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:48,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:48,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:48,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708554514] [2020-10-14 04:49:48,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:48,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:49:48,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865373712] [2020-10-14 04:49:48,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:49:48,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:48,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:49:48,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:48,766 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand 9 states. [2020-10-14 04:49:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:49,131 INFO L93 Difference]: Finished difference Result 88 states and 90 transitions. [2020-10-14 04:49:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:49,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:49:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:49,135 INFO L225 Difference]: With dead ends: 88 [2020-10-14 04:49:49,136 INFO L226 Difference]: Without dead ends: 86 [2020-10-14 04:49:49,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:49:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-14 04:49:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-14 04:49:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-14 04:49:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2020-10-14 04:49:49,142 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 45 [2020-10-14 04:49:49,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:49,142 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2020-10-14 04:49:49,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:49:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2020-10-14 04:49:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:49:49,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:49,143 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:49,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 04:49:49,144 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:49,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1791840934, now seen corresponding path program 1 times [2020-10-14 04:49:49,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:49,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094597426] [2020-10-14 04:49:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:49:49,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-14 04:49:49,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:49:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 04:49:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:49,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:49,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:49,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:49,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:49,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094597426] [2020-10-14 04:49:49,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:49,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:49:49,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955274967] [2020-10-14 04:49:49,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:49:49,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:49,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:49:49,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:49,801 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand 9 states. [2020-10-14 04:49:50,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:50,204 INFO L93 Difference]: Finished difference Result 129 states and 132 transitions. [2020-10-14 04:49:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:49:50,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2020-10-14 04:49:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:50,206 INFO L225 Difference]: With dead ends: 129 [2020-10-14 04:49:50,206 INFO L226 Difference]: Without dead ends: 127 [2020-10-14 04:49:50,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:49:50,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-14 04:49:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 110. [2020-10-14 04:49:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 04:49:50,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 113 transitions. [2020-10-14 04:49:50,213 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 113 transitions. Word has length 48 [2020-10-14 04:49:50,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:50,213 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 113 transitions. [2020-10-14 04:49:50,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:49:50,213 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 113 transitions. [2020-10-14 04:49:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 04:49:50,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:50,214 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:50,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 04:49:50,214 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:50,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1411094306, now seen corresponding path program 1 times [2020-10-14 04:49:50,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:50,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232731807] [2020-10-14 04:49:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:50,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 04:49:50,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:50,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-14 04:49:50,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:50,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:49:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:50,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 04:49:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:51,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:51,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:51,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:49:51,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:51,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:51,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:51,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:51,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:51,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232731807] [2020-10-14 04:49:51,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:51,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:49:51,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971753039] [2020-10-14 04:49:51,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:49:51,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:51,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:49:51,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:51,201 INFO L87 Difference]: Start difference. First operand 110 states and 113 transitions. Second operand 9 states. [2020-10-14 04:49:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:51,709 INFO L93 Difference]: Finished difference Result 127 states and 130 transitions. [2020-10-14 04:49:51,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:49:51,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-10-14 04:49:51,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:51,714 INFO L225 Difference]: With dead ends: 127 [2020-10-14 04:49:51,714 INFO L226 Difference]: Without dead ends: 125 [2020-10-14 04:49:51,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:51,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-14 04:49:51,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113. [2020-10-14 04:49:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-14 04:49:51,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2020-10-14 04:49:51,721 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 51 [2020-10-14 04:49:51,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:51,722 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2020-10-14 04:49:51,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:49:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2020-10-14 04:49:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 04:49:51,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:51,723 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:51,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 04:49:51,723 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:51,724 INFO L82 PathProgramCache]: Analyzing trace with hash -819002019, now seen corresponding path program 1 times [2020-10-14 04:49:51,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:51,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508748481] [2020-10-14 04:49:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:51,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:52,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 04:49:52,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:52,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-14 04:49:52,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:52,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:49:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 04:49:52,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:52,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:52,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:52,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:52,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:52,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:52,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:52,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:52,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:52,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:52,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508748481] [2020-10-14 04:49:52,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:52,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:49:52,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367683107] [2020-10-14 04:49:52,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:49:52,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:52,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:49:52,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:49:52,307 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand 10 states. [2020-10-14 04:49:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:52,737 INFO L93 Difference]: Finished difference Result 135 states and 138 transitions. [2020-10-14 04:49:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:49:52,738 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-10-14 04:49:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:52,739 INFO L225 Difference]: With dead ends: 135 [2020-10-14 04:49:52,739 INFO L226 Difference]: Without dead ends: 133 [2020-10-14 04:49:52,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:49:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-14 04:49:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2020-10-14 04:49:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-14 04:49:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 124 transitions. [2020-10-14 04:49:52,748 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 124 transitions. Word has length 52 [2020-10-14 04:49:52,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:52,748 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 124 transitions. [2020-10-14 04:49:52,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:49:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 124 transitions. [2020-10-14 04:49:52,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 04:49:52,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:52,750 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:52,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 04:49:52,750 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:52,750 INFO L82 PathProgramCache]: Analyzing trace with hash 421512575, now seen corresponding path program 2 times [2020-10-14 04:49:52,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:52,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818451112] [2020-10-14 04:49:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:52,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:53,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 04:49:53,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:53,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-10-14 04:49:53,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:53,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:53,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:49:53,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:53,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 04:49:53,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:53,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:53,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:53,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:53,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:53,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818451112] [2020-10-14 04:49:53,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:53,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:49:53,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512813266] [2020-10-14 04:49:53,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:49:53,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:53,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:49:53,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:49:53,891 INFO L87 Difference]: Start difference. First operand 121 states and 124 transitions. Second operand 10 states. [2020-10-14 04:49:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:54,338 INFO L93 Difference]: Finished difference Result 131 states and 134 transitions. [2020-10-14 04:49:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:49:54,339 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2020-10-14 04:49:54,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:54,341 INFO L225 Difference]: With dead ends: 131 [2020-10-14 04:49:54,342 INFO L226 Difference]: Without dead ends: 129 [2020-10-14 04:49:54,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:54,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-14 04:49:54,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 119. [2020-10-14 04:49:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-14 04:49:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2020-10-14 04:49:54,351 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 57 [2020-10-14 04:49:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:54,351 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2020-10-14 04:49:54,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:49:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2020-10-14 04:49:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 04:49:54,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:54,352 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:54,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 04:49:54,353 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:54,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:54,354 INFO L82 PathProgramCache]: Analyzing trace with hash -456576236, now seen corresponding path program 1 times [2020-10-14 04:49:54,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:54,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39191646] [2020-10-14 04:49:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:54,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:54,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 04:49:54,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-14 04:49:54,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:54,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:49:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 04:49:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:55,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:55,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:55,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:55,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:55,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:55,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:55,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:55,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:55,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39191646] [2020-10-14 04:49:55,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:55,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:49:55,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554159653] [2020-10-14 04:49:55,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:49:55,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:55,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:49:55,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:55,426 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand 11 states. [2020-10-14 04:49:55,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:55,834 INFO L93 Difference]: Finished difference Result 129 states and 132 transitions. [2020-10-14 04:49:55,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:49:55,834 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2020-10-14 04:49:55,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:55,835 INFO L225 Difference]: With dead ends: 129 [2020-10-14 04:49:55,835 INFO L226 Difference]: Without dead ends: 127 [2020-10-14 04:49:55,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:49:55,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-14 04:49:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119. [2020-10-14 04:49:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-14 04:49:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2020-10-14 04:49:55,851 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 59 [2020-10-14 04:49:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:55,852 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2020-10-14 04:49:55,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:49:55,852 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2020-10-14 04:49:55,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 04:49:55,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:55,853 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:55,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 04:49:55,854 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:55,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1788624169, now seen corresponding path program 2 times [2020-10-14 04:49:55,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:55,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235767930] [2020-10-14 04:49:55,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:55,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 04:49:56,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-14 04:49:56,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:49:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:56,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 04:49:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:56,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:56,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:56,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:56,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:56,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:56,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235767930] [2020-10-14 04:49:56,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:56,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:49:56,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460739749] [2020-10-14 04:49:56,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:49:56,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:56,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:49:56,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:56,402 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand 11 states. [2020-10-14 04:49:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:56,957 INFO L93 Difference]: Finished difference Result 139 states and 142 transitions. [2020-10-14 04:49:56,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:49:56,957 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2020-10-14 04:49:56,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:56,958 INFO L225 Difference]: With dead ends: 139 [2020-10-14 04:49:56,958 INFO L226 Difference]: Without dead ends: 97 [2020-10-14 04:49:56,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:49:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-14 04:49:56,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-14 04:49:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-14 04:49:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2020-10-14 04:49:56,964 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 60 [2020-10-14 04:49:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:56,965 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2020-10-14 04:49:56,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:49:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2020-10-14 04:49:56,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 04:49:56,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:56,966 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:56,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 04:49:56,966 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:56,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:56,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1199088795, now seen corresponding path program 2 times [2020-10-14 04:49:56,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:56,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029538119] [2020-10-14 04:49:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:57,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:57,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 04:49:57,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:57,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-10-14 04:49:57,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:57,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:57,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:49:57,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:57,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 04:49:57,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:58,361 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-10-14 04:49:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:58,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:58,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:58,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:58,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:58,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:58,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:58,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:58,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029538119] [2020-10-14 04:49:58,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:58,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:49:58,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967703799] [2020-10-14 04:49:58,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:49:58,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:58,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:49:58,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:58,561 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand 11 states. [2020-10-14 04:49:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:59,237 INFO L93 Difference]: Finished difference Result 154 states and 157 transitions. [2020-10-14 04:49:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 04:49:59,238 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60 [2020-10-14 04:49:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:59,239 INFO L225 Difference]: With dead ends: 154 [2020-10-14 04:49:59,239 INFO L226 Difference]: Without dead ends: 152 [2020-10-14 04:49:59,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:49:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-14 04:49:59,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 106. [2020-10-14 04:49:59,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 04:49:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 109 transitions. [2020-10-14 04:49:59,252 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 109 transitions. Word has length 60 [2020-10-14 04:49:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:59,252 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 109 transitions. [2020-10-14 04:49:59,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:49:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 109 transitions. [2020-10-14 04:49:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 04:49:59,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:59,254 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2020-10-14 04:49:59,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 04:49:59,254 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:59,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1252312032, now seen corresponding path program 1 times [2020-10-14 04:49:59,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:59,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730687144] [2020-10-14 04:49:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:59,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:59,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:49:59,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:59,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-14 04:49:59,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:59,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:59,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:49:59,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:59,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 04:49:59,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:00,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:00,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:00,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:00,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:00,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:00,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:00,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:00,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:00,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730687144] [2020-10-14 04:50:00,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:00,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:50:00,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274687723] [2020-10-14 04:50:00,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:50:00,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:00,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:50:00,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:00,524 INFO L87 Difference]: Start difference. First operand 106 states and 109 transitions. Second operand 12 states. [2020-10-14 04:50:01,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:01,165 INFO L93 Difference]: Finished difference Result 154 states and 157 transitions. [2020-10-14 04:50:01,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:50:01,165 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-10-14 04:50:01,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:01,167 INFO L225 Difference]: With dead ends: 154 [2020-10-14 04:50:01,168 INFO L226 Difference]: Without dead ends: 152 [2020-10-14 04:50:01,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:50:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-14 04:50:01,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 134. [2020-10-14 04:50:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-14 04:50:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 137 transitions. [2020-10-14 04:50:01,179 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 137 transitions. Word has length 67 [2020-10-14 04:50:01,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:01,180 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 137 transitions. [2020-10-14 04:50:01,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:50:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 137 transitions. [2020-10-14 04:50:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 04:50:01,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:01,181 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 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 04:50:01,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 04:50:01,181 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:01,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:01,182 INFO L82 PathProgramCache]: Analyzing trace with hash 30363838, now seen corresponding path program 3 times [2020-10-14 04:50:01,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:01,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152785268] [2020-10-14 04:50:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:01,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:02,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:02,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:50:02,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1284 [2020-10-14 04:50:02,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:02,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:50:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:02,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 04:50:02,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:03,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:03,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:03,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:03,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:03,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152785268] [2020-10-14 04:50:03,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:03,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:50:03,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650156141] [2020-10-14 04:50:03,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:50:03,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:03,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:50:03,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:03,252 INFO L87 Difference]: Start difference. First operand 134 states and 137 transitions. Second operand 12 states. [2020-10-14 04:50:04,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:04,166 INFO L93 Difference]: Finished difference Result 134 states and 137 transitions. [2020-10-14 04:50:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:50:04,167 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-14 04:50:04,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:04,168 INFO L225 Difference]: With dead ends: 134 [2020-10-14 04:50:04,168 INFO L226 Difference]: Without dead ends: 132 [2020-10-14 04:50:04,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:50:04,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-14 04:50:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 105. [2020-10-14 04:50:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-14 04:50:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 107 transitions. [2020-10-14 04:50:04,177 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 107 transitions. Word has length 69 [2020-10-14 04:50:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:04,178 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 107 transitions. [2020-10-14 04:50:04,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:50:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 107 transitions. [2020-10-14 04:50:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-14 04:50:04,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:04,179 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:04,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 04:50:04,179 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:04,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1249429676, now seen corresponding path program 2 times [2020-10-14 04:50:04,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:04,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098914805] [2020-10-14 04:50:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:04,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:05,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:05,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 04:50:05,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:50:05,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1433 [2020-10-14 04:50:05,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:05,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 04:50:05,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 04:50:05,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:05,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:05,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:05,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:05,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:05,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:05,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:05,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:05,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:05,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:05,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:05,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:05,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-14 04:50:05,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098914805] [2020-10-14 04:50:05,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:05,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:05,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434854194] [2020-10-14 04:50:05,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:05,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:05,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:05,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:05,772 INFO L87 Difference]: Start difference. First operand 105 states and 107 transitions. Second operand 9 states. [2020-10-14 04:50:06,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:06,261 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2020-10-14 04:50:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:50:06,261 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-14 04:50:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:06,263 INFO L225 Difference]: With dead ends: 133 [2020-10-14 04:50:06,263 INFO L226 Difference]: Without dead ends: 131 [2020-10-14 04:50:06,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:50:06,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-14 04:50:06,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2020-10-14 04:50:06,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 04:50:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 130 transitions. [2020-10-14 04:50:06,273 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 130 transitions. Word has length 75 [2020-10-14 04:50:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:06,273 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 130 transitions. [2020-10-14 04:50:06,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 130 transitions. [2020-10-14 04:50:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:50:06,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:06,275 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:06,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 04:50:06,275 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:06,275 INFO L82 PathProgramCache]: Analyzing trace with hash -256391065, now seen corresponding path program 3 times [2020-10-14 04:50:06,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:06,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815011626] [2020-10-14 04:50:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:07,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:07,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:50:07,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:07,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1320 [2020-10-14 04:50:07,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:07,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:07,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:50:07,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:07,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:50:07,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:07,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:07,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:07,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:07,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:07,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:50:07,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:07,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:07,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:07,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:08,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815011626] [2020-10-14 04:50:08,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:08,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:50:08,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800986191] [2020-10-14 04:50:08,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:50:08,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:08,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:50:08,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:50:08,033 INFO L87 Difference]: Start difference. First operand 127 states and 130 transitions. Second operand 13 states. [2020-10-14 04:50:08,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:08,543 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2020-10-14 04:50:08,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:50:08,544 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 76 [2020-10-14 04:50:08,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:08,545 INFO L225 Difference]: With dead ends: 129 [2020-10-14 04:50:08,545 INFO L226 Difference]: Without dead ends: 127 [2020-10-14 04:50:08,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:50:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-14 04:50:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 84. [2020-10-14 04:50:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-14 04:50:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-10-14 04:50:08,553 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 76 [2020-10-14 04:50:08,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:08,554 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-10-14 04:50:08,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:50:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-10-14 04:50:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 04:50:08,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:08,555 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:08,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 04:50:08,555 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:08,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:08,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1855013240, now seen corresponding path program 4 times [2020-10-14 04:50:08,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:08,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763330385] [2020-10-14 04:50:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:09,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:09,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 04:50:09,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-10-14 04:50:09,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:09,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:50:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:09,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:50:09,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:09,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:09,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:09,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:09,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:09,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:09,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:09,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:09,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:09,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:09,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:09,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 12 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:09,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763330385] [2020-10-14 04:50:09,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:09,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:50:09,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223864002] [2020-10-14 04:50:09,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:50:09,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:09,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:50:09,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:50:09,666 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 13 states. [2020-10-14 04:50:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:10,576 INFO L93 Difference]: Finished difference Result 149 states and 151 transitions. [2020-10-14 04:50:10,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 04:50:10,577 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 83 [2020-10-14 04:50:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:10,578 INFO L225 Difference]: With dead ends: 149 [2020-10-14 04:50:10,578 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 04:50:10,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:50:10,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 04:50:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-14 04:50:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-14 04:50:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-10-14 04:50:10,591 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 83 [2020-10-14 04:50:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:10,591 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-10-14 04:50:10,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:50:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-10-14 04:50:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 04:50:10,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:10,593 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:10,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 04:50:10,593 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:10,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1078962177, now seen corresponding path program 5 times [2020-10-14 04:50:10,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:10,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275869268] [2020-10-14 04:50:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:10,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:12,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1686 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 04:50:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:12,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:12,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:12,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:12,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:12,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:12,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275869268] [2020-10-14 04:50:12,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:12,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 04:50:12,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887180563] [2020-10-14 04:50:12,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 04:50:12,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:12,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 04:50:12,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:50:12,994 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 14 states. [2020-10-14 04:50:14,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:14,077 INFO L93 Difference]: Finished difference Result 166 states and 168 transitions. [2020-10-14 04:50:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:50:14,078 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 92 [2020-10-14 04:50:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:14,079 INFO L225 Difference]: With dead ends: 166 [2020-10-14 04:50:14,080 INFO L226 Difference]: Without dead ends: 164 [2020-10-14 04:50:14,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:50:14,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-14 04:50:14,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2020-10-14 04:50:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 04:50:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2020-10-14 04:50:14,091 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 92 [2020-10-14 04:50:14,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:14,092 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2020-10-14 04:50:14,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 04:50:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2020-10-14 04:50:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 04:50:14,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:14,093 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:14,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 04:50:14,094 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:14,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:14,094 INFO L82 PathProgramCache]: Analyzing trace with hash 150588875, now seen corresponding path program 6 times [2020-10-14 04:50:14,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:14,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249962851] [2020-10-14 04:50:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:14,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:15,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:15,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 04:50:15,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:15,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-10-14 04:50:15,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:15,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 04:50:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 04:50:15,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:15,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:15,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:15,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:15,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:15,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:15,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:15,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:15,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249962851] [2020-10-14 04:50:15,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:15,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:50:15,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072575505] [2020-10-14 04:50:15,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:50:15,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:15,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:50:15,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:50:15,825 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand 15 states. [2020-10-14 04:50:17,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:17,016 INFO L93 Difference]: Finished difference Result 166 states and 168 transitions. [2020-10-14 04:50:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:50:17,016 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-14 04:50:17,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:17,017 INFO L225 Difference]: With dead ends: 166 [2020-10-14 04:50:17,017 INFO L226 Difference]: Without dead ends: 102 [2020-10-14 04:50:17,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:50:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-14 04:50:17,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-14 04:50:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 04:50:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2020-10-14 04:50:17,026 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 100 [2020-10-14 04:50:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:17,026 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2020-10-14 04:50:17,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:50:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2020-10-14 04:50:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 04:50:17,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:17,027 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 04:50:17,027 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 04:50:17,028 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:17,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:17,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1675929944, now seen corresponding path program 7 times [2020-10-14 04:50:17,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:17,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349648506] [2020-10-14 04:50:17,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:17,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1683 [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 04:50:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 04:50:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:19,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:19,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:19,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:19,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:19,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:19,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:19,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:19,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:19,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:19,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:19,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:19,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349648506] [2020-10-14 04:50:19,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:19,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 04:50:19,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330501428] [2020-10-14 04:50:19,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 04:50:19,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:19,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 04:50:19,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:50:19,615 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand 16 states. [2020-10-14 04:50:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:20,777 INFO L93 Difference]: Finished difference Result 175 states and 177 transitions. [2020-10-14 04:50:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:50:20,778 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 101 [2020-10-14 04:50:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:20,780 INFO L225 Difference]: With dead ends: 175 [2020-10-14 04:50:20,780 INFO L226 Difference]: Without dead ends: 173 [2020-10-14 04:50:20,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:50:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-14 04:50:20,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 139. [2020-10-14 04:50:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-14 04:50:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 141 transitions. [2020-10-14 04:50:20,792 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 141 transitions. Word has length 101 [2020-10-14 04:50:20,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:20,793 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 141 transitions. [2020-10-14 04:50:20,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 04:50:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 141 transitions. [2020-10-14 04:50:20,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 04:50:20,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:20,794 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 04:50:20,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 04:50:20,795 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:20,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1813493284, now seen corresponding path program 8 times [2020-10-14 04:50:20,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:20,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024735446] [2020-10-14 04:50:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:20,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:22,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:22,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 04:50:22,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1806 [2020-10-14 04:50:22,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:22,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 04:50:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 04:50:22,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:23,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:23,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:23,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:23,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024735446] [2020-10-14 04:50:23,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:23,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 04:50:23,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892606492] [2020-10-14 04:50:23,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 04:50:23,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:23,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 04:50:23,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:50:23,566 INFO L87 Difference]: Start difference. First operand 139 states and 141 transitions. Second operand 16 states. [2020-10-14 04:50:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:24,895 INFO L93 Difference]: Finished difference Result 183 states and 185 transitions. [2020-10-14 04:50:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:50:24,895 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 109 [2020-10-14 04:50:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:24,896 INFO L225 Difference]: With dead ends: 183 [2020-10-14 04:50:24,897 INFO L226 Difference]: Without dead ends: 181 [2020-10-14 04:50:24,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:50:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-14 04:50:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 147. [2020-10-14 04:50:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-14 04:50:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 149 transitions. [2020-10-14 04:50:24,911 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 149 transitions. Word has length 109 [2020-10-14 04:50:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:24,911 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 149 transitions. [2020-10-14 04:50:24,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 04:50:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 149 transitions. [2020-10-14 04:50:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 04:50:24,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:24,913 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 04:50:24,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 04:50:24,913 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:24,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:24,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1686359071, now seen corresponding path program 9 times [2020-10-14 04:50:24,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:24,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876673442] [2020-10-14 04:50:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:25,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:27,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2637 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 04:50:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:28,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:28,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:28,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:28,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:28,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876673442] [2020-10-14 04:50:28,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:28,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 04:50:28,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892134442] [2020-10-14 04:50:28,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 04:50:28,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 04:50:28,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:50:28,725 INFO L87 Difference]: Start difference. First operand 147 states and 149 transitions. Second operand 17 states. [2020-10-14 04:50:29,675 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-14 04:50:30,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:30,472 INFO L93 Difference]: Finished difference Result 181 states and 183 transitions. [2020-10-14 04:50:30,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:50:30,472 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 110 [2020-10-14 04:50:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:30,474 INFO L225 Difference]: With dead ends: 181 [2020-10-14 04:50:30,474 INFO L226 Difference]: Without dead ends: 179 [2020-10-14 04:50:30,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:50:30,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-14 04:50:30,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 147. [2020-10-14 04:50:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-14 04:50:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 149 transitions. [2020-10-14 04:50:30,489 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 149 transitions. Word has length 110 [2020-10-14 04:50:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:30,489 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 149 transitions. [2020-10-14 04:50:30,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 04:50:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 149 transitions. [2020-10-14 04:50:30,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-14 04:50:30,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:30,495 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 04:50:30,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 04:50:30,496 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:30,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:30,497 INFO L82 PathProgramCache]: Analyzing trace with hash -318294288, now seen corresponding path program 10 times [2020-10-14 04:50:30,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:30,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256612942] [2020-10-14 04:50:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:30,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:32,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:32,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 04:50:32,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2145 [2020-10-14 04:50:32,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:32,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 04:50:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 04:50:32,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:33,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:33,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:33,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:33,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:33,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:33,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:33,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:33,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:33,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 20 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:33,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256612942] [2020-10-14 04:50:33,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:33,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 04:50:33,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331607023] [2020-10-14 04:50:33,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 04:50:33,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:33,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 04:50:33,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:50:33,345 INFO L87 Difference]: Start difference. First operand 147 states and 149 transitions. Second operand 17 states. [2020-10-14 04:50:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:34,981 INFO L93 Difference]: Finished difference Result 191 states and 193 transitions. [2020-10-14 04:50:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:50:34,981 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 117 [2020-10-14 04:50:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:34,982 INFO L225 Difference]: With dead ends: 191 [2020-10-14 04:50:34,982 INFO L226 Difference]: Without dead ends: 119 [2020-10-14 04:50:34,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:50:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-14 04:50:34,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-14 04:50:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-14 04:50:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2020-10-14 04:50:34,994 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 117 [2020-10-14 04:50:34,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:34,994 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2020-10-14 04:50:34,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 04:50:34,994 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2020-10-14 04:50:34,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 04:50:34,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:34,995 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 04:50:34,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 04:50:34,996 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:34,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:34,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1247338005, now seen corresponding path program 11 times [2020-10-14 04:50:34,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:34,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452640238] [2020-10-14 04:50:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:35,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2414 [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 04:50:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 04:50:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:38,077 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2020-10-14 04:50:38,220 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2020-10-14 04:50:38,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:38,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:38,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:38,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:38,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:38,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:38,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:38,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:38,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452640238] [2020-10-14 04:50:38,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:38,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 04:50:38,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236363997] [2020-10-14 04:50:38,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 04:50:38,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:38,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 04:50:38,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:38,650 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand 18 states. [2020-10-14 04:50:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:40,338 INFO L93 Difference]: Finished difference Result 200 states and 202 transitions. [2020-10-14 04:50:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 04:50:40,339 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 118 [2020-10-14 04:50:40,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:40,341 INFO L225 Difference]: With dead ends: 200 [2020-10-14 04:50:40,342 INFO L226 Difference]: Without dead ends: 198 [2020-10-14 04:50:40,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:50:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-14 04:50:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 156. [2020-10-14 04:50:40,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-14 04:50:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 158 transitions. [2020-10-14 04:50:40,357 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 158 transitions. Word has length 118 [2020-10-14 04:50:40,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:40,357 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 158 transitions. [2020-10-14 04:50:40,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 04:50:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 158 transitions. [2020-10-14 04:50:40,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 04:50:40,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:40,359 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 04:50:40,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 04:50:40,359 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:40,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:40,360 INFO L82 PathProgramCache]: Analyzing trace with hash 321776567, now seen corresponding path program 12 times [2020-10-14 04:50:40,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:40,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291097769] [2020-10-14 04:50:40,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:40,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:43,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 04:50:43,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2967 [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 04:50:43,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:44,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:44,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:44,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:44,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:44,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:44,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:44,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291097769] [2020-10-14 04:50:44,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:44,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 04:50:44,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163529196] [2020-10-14 04:50:44,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 04:50:44,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:44,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 04:50:44,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:44,398 INFO L87 Difference]: Start difference. First operand 156 states and 158 transitions. Second operand 18 states. [2020-10-14 04:50:46,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:46,144 INFO L93 Difference]: Finished difference Result 208 states and 210 transitions. [2020-10-14 04:50:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:50:46,144 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 126 [2020-10-14 04:50:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:46,146 INFO L225 Difference]: With dead ends: 208 [2020-10-14 04:50:46,146 INFO L226 Difference]: Without dead ends: 206 [2020-10-14 04:50:46,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2020-10-14 04:50:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-14 04:50:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 164. [2020-10-14 04:50:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-14 04:50:46,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 166 transitions. [2020-10-14 04:50:46,164 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 166 transitions. Word has length 126 [2020-10-14 04:50:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:46,165 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 166 transitions. [2020-10-14 04:50:46,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 04:50:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 166 transitions. [2020-10-14 04:50:46,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 04:50:46,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:46,166 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 04:50:46,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 04:50:46,167 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:46,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:46,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1414989316, now seen corresponding path program 13 times [2020-10-14 04:50:46,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:46,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562895703] [2020-10-14 04:50:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:46,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:50,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3690 [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:50:50,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:50,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 04:50:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:50,897 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-14 04:50:51,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:51,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:51,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:51,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:51,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:51,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:51,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:51,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562895703] [2020-10-14 04:50:51,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:51,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 04:50:51,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149069472] [2020-10-14 04:50:51,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:50:51,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:51,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:50:51,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:50:51,516 INFO L87 Difference]: Start difference. First operand 164 states and 166 transitions. Second operand 19 states. [2020-10-14 04:50:53,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:53,389 INFO L93 Difference]: Finished difference Result 206 states and 208 transitions. [2020-10-14 04:50:53,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:50:53,389 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 127 [2020-10-14 04:50:53,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:53,390 INFO L225 Difference]: With dead ends: 206 [2020-10-14 04:50:53,391 INFO L226 Difference]: Without dead ends: 204 [2020-10-14 04:50:53,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:50:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-14 04:50:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 164. [2020-10-14 04:50:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-14 04:50:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 166 transitions. [2020-10-14 04:50:53,406 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 166 transitions. Word has length 127 [2020-10-14 04:50:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:53,406 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 166 transitions. [2020-10-14 04:50:53,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:50:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 166 transitions. [2020-10-14 04:50:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-14 04:50:53,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:53,407 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 04:50:53,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 04:50:53,408 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:50:53,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:53,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1818503555, now seen corresponding path program 14 times [2020-10-14 04:50:53,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:53,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042889837] [2020-10-14 04:50:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:56,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 04:50:56,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3255 [2020-10-14 04:50:56,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:56,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:50:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 04:50:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:57,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:57,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:57,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:57,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:57,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:57,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:57,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:57,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:57,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 24 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:57,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042889837] [2020-10-14 04:50:57,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:57,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 04:50:57,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988934644] [2020-10-14 04:50:57,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:50:57,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:57,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:50:57,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:50:57,740 INFO L87 Difference]: Start difference. First operand 164 states and 166 transitions. Second operand 19 states. [2020-10-14 04:50:59,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:59,990 INFO L93 Difference]: Finished difference Result 216 states and 218 transitions. [2020-10-14 04:50:59,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:50:59,991 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 134 [2020-10-14 04:50:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:59,992 INFO L225 Difference]: With dead ends: 216 [2020-10-14 04:50:59,992 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 04:50:59,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 04:50:59,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 04:51:00,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-14 04:51:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-14 04:51:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 137 transitions. [2020-10-14 04:51:00,007 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 137 transitions. Word has length 134 [2020-10-14 04:51:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:00,007 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 137 transitions. [2020-10-14 04:51:00,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:51:00,007 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 137 transitions. [2020-10-14 04:51:00,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-14 04:51:00,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:00,008 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 04:51:00,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-14 04:51:00,009 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:00,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:00,009 INFO L82 PathProgramCache]: Analyzing trace with hash 6858448, now seen corresponding path program 15 times [2020-10-14 04:51:00,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:00,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004714739] [2020-10-14 04:51:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:00,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:03,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3587 [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 04:51:03,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:03,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 04:51:03,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:04,454 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-14 04:51:04,633 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-14 04:51:04,804 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-14 04:51:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:05,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:05,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:05,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:05,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:05,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:05,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:05,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:05,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:05,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:05,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004714739] [2020-10-14 04:51:05,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:05,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 04:51:05,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646045826] [2020-10-14 04:51:05,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:51:05,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:05,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:51:05,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:51:05,417 INFO L87 Difference]: Start difference. First operand 136 states and 137 transitions. Second operand 20 states. [2020-10-14 04:51:07,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:07,824 INFO L93 Difference]: Finished difference Result 225 states and 227 transitions. [2020-10-14 04:51:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:51:07,824 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 135 [2020-10-14 04:51:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:07,826 INFO L225 Difference]: With dead ends: 225 [2020-10-14 04:51:07,826 INFO L226 Difference]: Without dead ends: 223 [2020-10-14 04:51:07,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2020-10-14 04:51:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-14 04:51:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 173. [2020-10-14 04:51:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-14 04:51:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 175 transitions. [2020-10-14 04:51:07,845 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 175 transitions. Word has length 135 [2020-10-14 04:51:07,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:07,845 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 175 transitions. [2020-10-14 04:51:07,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:51:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 175 transitions. [2020-10-14 04:51:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-14 04:51:07,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:07,847 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 04:51:07,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-14 04:51:07,847 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:07,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:07,848 INFO L82 PathProgramCache]: Analyzing trace with hash -144524388, now seen corresponding path program 16 times [2020-10-14 04:51:07,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:07,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084554494] [2020-10-14 04:51:07,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:08,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4350 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 04:51:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:13,061 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-14 04:51:13,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:13,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:13,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:13,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:13,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:13,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:13,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:13,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:13,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:13,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:13,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:51:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:13,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084554494] [2020-10-14 04:51:13,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:13,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 04:51:13,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368528590] [2020-10-14 04:51:13,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:51:13,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:13,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:51:13,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:51:13,776 INFO L87 Difference]: Start difference. First operand 173 states and 175 transitions. Second operand 20 states. [2020-10-14 04:51:14,980 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-14 04:51:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:16,427 INFO L93 Difference]: Finished difference Result 233 states and 235 transitions. [2020-10-14 04:51:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 04:51:16,428 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 143 [2020-10-14 04:51:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:16,430 INFO L225 Difference]: With dead ends: 233 [2020-10-14 04:51:16,430 INFO L226 Difference]: Without dead ends: 231 [2020-10-14 04:51:16,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2020-10-14 04:51:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-14 04:51:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 181. [2020-10-14 04:51:16,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-14 04:51:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 183 transitions. [2020-10-14 04:51:16,451 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 183 transitions. Word has length 143 [2020-10-14 04:51:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:16,451 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 183 transitions. [2020-10-14 04:51:16,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:51:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 183 transitions. [2020-10-14 04:51:16,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-14 04:51:16,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:16,453 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 04:51:16,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-14 04:51:16,453 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:16,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:16,454 INFO L82 PathProgramCache]: Analyzing trace with hash -717465641, now seen corresponding path program 17 times [2020-10-14 04:51:16,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:16,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801018817] [2020-10-14 04:51:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:16,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:21,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 04:51:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:22,479 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-14 04:51:22,704 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-10-14 04:51:22,964 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-10-14 04:51:23,199 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-10-14 04:51:23,402 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-14 04:51:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:23,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:23,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:23,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:23,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:23,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:23,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:23,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:51:24,171 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:24,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801018817] [2020-10-14 04:51:24,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:24,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 04:51:24,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532807672] [2020-10-14 04:51:24,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 04:51:24,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:24,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 04:51:24,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:51:24,173 INFO L87 Difference]: Start difference. First operand 181 states and 183 transitions. Second operand 21 states. [2020-10-14 04:51:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:26,764 INFO L93 Difference]: Finished difference Result 231 states and 233 transitions. [2020-10-14 04:51:26,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:51:26,764 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 144 [2020-10-14 04:51:26,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:26,766 INFO L225 Difference]: With dead ends: 231 [2020-10-14 04:51:26,766 INFO L226 Difference]: Without dead ends: 229 [2020-10-14 04:51:26,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:51:26,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-14 04:51:26,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 181. [2020-10-14 04:51:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-14 04:51:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 183 transitions. [2020-10-14 04:51:26,789 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 183 transitions. Word has length 144 [2020-10-14 04:51:26,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:26,789 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 183 transitions. [2020-10-14 04:51:26,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 04:51:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 183 transitions. [2020-10-14 04:51:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-14 04:51:26,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:26,791 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 04:51:26,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-14 04:51:26,791 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:26,792 INFO L82 PathProgramCache]: Analyzing trace with hash -745454488, now seen corresponding path program 18 times [2020-10-14 04:51:26,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:26,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823047341] [2020-10-14 04:51:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:27,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:31,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 04:51:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4666 [2020-10-14 04:51:31,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:31,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 04:51:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 04:51:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:32,372 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-10-14 04:51:32,667 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-14 04:51:33,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:33,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:33,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:33,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:33,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:33,338 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 28 proven. 368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:33,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823047341] [2020-10-14 04:51:33,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:33,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 04:51:33,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172642498] [2020-10-14 04:51:33,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 04:51:33,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:33,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 04:51:33,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:51:33,339 INFO L87 Difference]: Start difference. First operand 181 states and 183 transitions. Second operand 21 states. [2020-10-14 04:51:34,394 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-14 04:51:34,812 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2020-10-14 04:51:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:36,647 INFO L93 Difference]: Finished difference Result 241 states and 243 transitions. [2020-10-14 04:51:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:51:36,647 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 151 [2020-10-14 04:51:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:36,648 INFO L225 Difference]: With dead ends: 241 [2020-10-14 04:51:36,649 INFO L226 Difference]: Without dead ends: 153 [2020-10-14 04:51:36,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=108, Invalid=1224, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 04:51:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-14 04:51:36,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-10-14 04:51:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-14 04:51:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 154 transitions. [2020-10-14 04:51:36,669 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 154 transitions. Word has length 151 [2020-10-14 04:51:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:36,669 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 154 transitions. [2020-10-14 04:51:36,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 04:51:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 154 transitions. [2020-10-14 04:51:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 04:51:36,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:36,670 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 04:51:36,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-14 04:51:36,671 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:36,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:36,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1479248477, now seen corresponding path program 19 times [2020-10-14 04:51:36,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:36,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528928302] [2020-10-14 04:51:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:42,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:42,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 04:51:42,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 04:51:42,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:42,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 04:51:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 04:51:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:42,956 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2020-10-14 04:51:43,114 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-10-14 04:51:43,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:43,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:44,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528928302] [2020-10-14 04:51:44,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:44,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 04:51:44,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625821766] [2020-10-14 04:51:44,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 04:51:44,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:44,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 04:51:44,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2020-10-14 04:51:44,056 INFO L87 Difference]: Start difference. First operand 153 states and 154 transitions. Second operand 22 states. [2020-10-14 04:51:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:47,211 INFO L93 Difference]: Finished difference Result 250 states and 252 transitions. [2020-10-14 04:51:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 04:51:47,211 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 152 [2020-10-14 04:51:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:47,214 INFO L225 Difference]: With dead ends: 250 [2020-10-14 04:51:47,214 INFO L226 Difference]: Without dead ends: 248 [2020-10-14 04:51:47,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=110, Invalid=1150, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 04:51:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-14 04:51:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 190. [2020-10-14 04:51:47,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-14 04:51:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 192 transitions. [2020-10-14 04:51:47,233 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 192 transitions. Word has length 152 [2020-10-14 04:51:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:47,233 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 192 transitions. [2020-10-14 04:51:47,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 04:51:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 192 transitions. [2020-10-14 04:51:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-14 04:51:47,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:47,234 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 04:51:47,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-14 04:51:47,235 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:47,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:47,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1233651567, now seen corresponding path program 20 times [2020-10-14 04:51:47,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:47,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106889075] [2020-10-14 04:51:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:47,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:52,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:52,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 04:51:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:53,492 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2020-10-14 04:51:53,779 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2020-10-14 04:51:54,047 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2020-10-14 04:51:54,355 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2020-10-14 04:51:54,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:54,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:54,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:54,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:54,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:55,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106889075] [2020-10-14 04:51:55,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:55,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 04:51:55,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375747185] [2020-10-14 04:51:55,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 04:51:55,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:55,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 04:51:55,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-14 04:51:55,147 INFO L87 Difference]: Start difference. First operand 190 states and 192 transitions. Second operand 22 states. [2020-10-14 04:51:57,209 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-14 04:51:59,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:59,009 INFO L93 Difference]: Finished difference Result 258 states and 260 transitions. [2020-10-14 04:51:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:51:59,010 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 160 [2020-10-14 04:51:59,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:59,012 INFO L225 Difference]: With dead ends: 258 [2020-10-14 04:51:59,012 INFO L226 Difference]: Without dead ends: 256 [2020-10-14 04:51:59,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 04:51:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-14 04:51:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 198. [2020-10-14 04:51:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-14 04:51:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 200 transitions. [2020-10-14 04:51:59,037 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 200 transitions. Word has length 160 [2020-10-14 04:51:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:59,037 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 200 transitions. [2020-10-14 04:51:59,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 04:51:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 200 transitions. [2020-10-14 04:51:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-14 04:51:59,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:59,039 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 04:51:59,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-14 04:51:59,039 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:51:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:59,040 INFO L82 PathProgramCache]: Analyzing trace with hash -256502916, now seen corresponding path program 21 times [2020-10-14 04:51:59,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:59,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226959515] [2020-10-14 04:51:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:59,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:52:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 04:52:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:05,277 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2020-10-14 04:52:05,481 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2020-10-14 04:52:05,747 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-14 04:52:06,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:06,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:06,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:06,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:06,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:06,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:06,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:06,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:06,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:06,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:06,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:52:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:06,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226959515] [2020-10-14 04:52:06,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:06,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 04:52:06,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192305217] [2020-10-14 04:52:06,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 04:52:06,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:06,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 04:52:06,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:52:06,633 INFO L87 Difference]: Start difference. First operand 198 states and 200 transitions. Second operand 23 states. [2020-10-14 04:52:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:10,306 INFO L93 Difference]: Finished difference Result 256 states and 258 transitions. [2020-10-14 04:52:10,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:52:10,307 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 161 [2020-10-14 04:52:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:10,309 INFO L225 Difference]: With dead ends: 256 [2020-10-14 04:52:10,309 INFO L226 Difference]: Without dead ends: 254 [2020-10-14 04:52:10,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 04:52:10,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-14 04:52:10,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 198. [2020-10-14 04:52:10,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-14 04:52:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 200 transitions. [2020-10-14 04:52:10,331 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 200 transitions. Word has length 161 [2020-10-14 04:52:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:10,331 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 200 transitions. [2020-10-14 04:52:10,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 04:52:10,331 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 200 transitions. [2020-10-14 04:52:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-14 04:52:10,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:10,332 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 04:52:10,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-14 04:52:10,333 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:52:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:10,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1906511163, now seen corresponding path program 22 times [2020-10-14 04:52:10,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:10,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465654131] [2020-10-14 04:52:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:10,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:15,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:15,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 04:52:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5126 [2020-10-14 04:52:15,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:15,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:52:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 04:52:15,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:16,181 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-14 04:52:16,358 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-14 04:52:16,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:16,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:16,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:16,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 32 proven. 488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:17,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465654131] [2020-10-14 04:52:17,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:17,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 04:52:17,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137864348] [2020-10-14 04:52:17,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 04:52:17,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:17,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 04:52:17,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:52:17,273 INFO L87 Difference]: Start difference. First operand 198 states and 200 transitions. Second operand 23 states. [2020-10-14 04:52:21,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:21,076 INFO L93 Difference]: Finished difference Result 266 states and 268 transitions. [2020-10-14 04:52:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 04:52:21,076 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 168 [2020-10-14 04:52:21,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:21,078 INFO L225 Difference]: With dead ends: 266 [2020-10-14 04:52:21,079 INFO L226 Difference]: Without dead ends: 170 [2020-10-14 04:52:21,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=120, Invalid=1520, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 04:52:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-14 04:52:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-14 04:52:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-14 04:52:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 171 transitions. [2020-10-14 04:52:21,102 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 171 transitions. Word has length 168 [2020-10-14 04:52:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:21,103 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 171 transitions. [2020-10-14 04:52:21,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 04:52:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 171 transitions. [2020-10-14 04:52:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-14 04:52:21,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:21,104 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 04:52:21,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-14 04:52:21,104 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:52:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:21,105 INFO L82 PathProgramCache]: Analyzing trace with hash -947995576, now seen corresponding path program 23 times [2020-10-14 04:52:21,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:21,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663637163] [2020-10-14 04:52:21,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:21,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:26,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:26,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-14 04:52:26,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 04:52:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:27,142 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-14 04:52:27,442 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-10-14 04:52:27,694 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2020-10-14 04:52:27,925 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-10-14 04:52:28,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:28,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:28,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:28,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:28,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:28,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:28,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:28,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:28,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:28,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:28,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663637163] [2020-10-14 04:52:28,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:28,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 04:52:28,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677017266] [2020-10-14 04:52:28,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 04:52:28,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:28,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 04:52:28,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:52:28,931 INFO L87 Difference]: Start difference. First operand 170 states and 171 transitions. Second operand 24 states. [2020-10-14 04:52:33,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:33,227 INFO L93 Difference]: Finished difference Result 275 states and 277 transitions. [2020-10-14 04:52:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 04:52:33,227 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 169 [2020-10-14 04:52:33,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:33,230 INFO L225 Difference]: With dead ends: 275 [2020-10-14 04:52:33,230 INFO L226 Difference]: Without dead ends: 273 [2020-10-14 04:52:33,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 04:52:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-14 04:52:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 207. [2020-10-14 04:52:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-14 04:52:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 209 transitions. [2020-10-14 04:52:33,254 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 209 transitions. Word has length 169 [2020-10-14 04:52:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:33,254 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 209 transitions. [2020-10-14 04:52:33,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 04:52:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 209 transitions. [2020-10-14 04:52:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-14 04:52:33,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:33,256 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 04:52:33,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-14 04:52:33,256 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:52:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:33,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1705498900, now seen corresponding path program 24 times [2020-10-14 04:52:33,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:33,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78081735] [2020-10-14 04:52:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:38,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 04:52:38,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:39,494 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-10-14 04:52:39,723 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-14 04:52:40,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:40,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:40,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:40,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 0 proven. 591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:40,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78081735] [2020-10-14 04:52:40,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:40,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 04:52:40,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144463523] [2020-10-14 04:52:40,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 04:52:40,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:40,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 04:52:40,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:52:40,745 INFO L87 Difference]: Start difference. First operand 207 states and 209 transitions. Second operand 24 states. [2020-10-14 04:52:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:44,929 INFO L93 Difference]: Finished difference Result 283 states and 285 transitions. [2020-10-14 04:52:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 04:52:44,930 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 177 [2020-10-14 04:52:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:44,932 INFO L225 Difference]: With dead ends: 283 [2020-10-14 04:52:44,932 INFO L226 Difference]: Without dead ends: 281 [2020-10-14 04:52:44,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 04:52:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-14 04:52:44,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 215. [2020-10-14 04:52:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-14 04:52:44,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 217 transitions. [2020-10-14 04:52:44,957 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 217 transitions. Word has length 177 [2020-10-14 04:52:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:44,957 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 217 transitions. [2020-10-14 04:52:44,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 04:52:44,957 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 217 transitions. [2020-10-14 04:52:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 04:52:44,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:44,958 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 04:52:44,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-14 04:52:44,958 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:52:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:44,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1410558863, now seen corresponding path program 25 times [2020-10-14 04:52:44,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:44,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785146403] [2020-10-14 04:52:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:45,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:50,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:50,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 04:52:50,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 04:52:50,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:51,393 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2020-10-14 04:52:51,577 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-14 04:52:51,735 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-14 04:52:52,102 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-14 04:52:52,314 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2020-10-14 04:52:52,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:52,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:52,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:52,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 0 proven. 609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:53,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785146403] [2020-10-14 04:52:53,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:53,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 04:52:53,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114829314] [2020-10-14 04:52:53,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 04:52:53,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:53,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 04:52:53,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=546, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:52:53,371 INFO L87 Difference]: Start difference. First operand 215 states and 217 transitions. Second operand 25 states. [2020-10-14 04:52:54,677 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-14 04:52:55,499 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-14 04:52:58,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:58,233 INFO L93 Difference]: Finished difference Result 374 states and 377 transitions. [2020-10-14 04:52:58,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:52:58,234 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 178 [2020-10-14 04:52:58,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:58,236 INFO L225 Difference]: With dead ends: 374 [2020-10-14 04:52:58,236 INFO L226 Difference]: Without dead ends: 372 [2020-10-14 04:52:58,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=115, Invalid=1367, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 04:52:58,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-14 04:52:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 244. [2020-10-14 04:52:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-14 04:52:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 247 transitions. [2020-10-14 04:52:58,267 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 247 transitions. Word has length 178 [2020-10-14 04:52:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:58,267 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 247 transitions. [2020-10-14 04:52:58,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 04:52:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 247 transitions. [2020-10-14 04:52:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-14 04:52:58,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:58,268 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 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 04:52:58,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-14 04:52:58,268 INFO L427 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:52:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:58,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1836935648, now seen corresponding path program 26 times [2020-10-14 04:52:58,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:58,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37834746] [2020-10-14 04:52:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:58,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:03,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:03,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 04:53:03,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 04:53:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:04,600 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2020-10-14 04:53:04,839 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-14 04:53:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:05,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:05,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:05,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:05,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:05,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:05,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:05,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:05,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 36 proven. 625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:53:06,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37834746] [2020-10-14 04:53:06,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:06,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 04:53:06,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141547335] [2020-10-14 04:53:06,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 04:53:06,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:06,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 04:53:06,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:53:06,035 INFO L87 Difference]: Start difference. First operand 244 states and 247 transitions. Second operand 25 states. [2020-10-14 04:53:08,505 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-14 04:53:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:11,162 INFO L93 Difference]: Finished difference Result 320 states and 323 transitions. [2020-10-14 04:53:11,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:53:11,163 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 185 [2020-10-14 04:53:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:11,164 INFO L225 Difference]: With dead ends: 320 [2020-10-14 04:53:11,164 INFO L226 Difference]: Without dead ends: 216 [2020-10-14 04:53:11,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=132, Invalid=1848, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 04:53:11,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-10-14 04:53:11,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2020-10-14 04:53:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-14 04:53:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 218 transitions. [2020-10-14 04:53:11,185 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 218 transitions. Word has length 185 [2020-10-14 04:53:11,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:11,186 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 218 transitions. [2020-10-14 04:53:11,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 04:53:11,186 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 218 transitions. [2020-10-14 04:53:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 04:53:11,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:11,187 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 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 04:53:11,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-14 04:53:11,187 INFO L427 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:53:11,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:11,187 INFO L82 PathProgramCache]: Analyzing trace with hash 85479771, now seen corresponding path program 27 times [2020-10-14 04:53:11,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:11,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671838669] [2020-10-14 04:53:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:16,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5180 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 04:53:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:17,697 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-10-14 04:53:17,938 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2020-10-14 04:53:18,246 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2020-10-14 04:53:18,547 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2020-10-14 04:53:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:19,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:19,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:19,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:19,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:19,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:53:19,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671838669] [2020-10-14 04:53:19,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:19,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 04:53:19,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911520975] [2020-10-14 04:53:19,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 04:53:19,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:19,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 04:53:19,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2020-10-14 04:53:19,797 INFO L87 Difference]: Start difference. First operand 216 states and 218 transitions. Second operand 26 states.