/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/sll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:49:42,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:49:42,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:49:42,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:49:42,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:49:42,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:49:42,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:49:42,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:49:42,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:49:42,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:49:42,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:49:42,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:49:42,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:49:42,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:49:42,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:49:42,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:49:42,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:49:42,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:49:42,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:49:42,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:49:42,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:49:42,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:49:42,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:49:42,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:49:42,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:49:42,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:49:42,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:49:42,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:49:42,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:49:42,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:49:42,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:49:42,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:49:42,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:49:42,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:49:42,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:49:42,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:49:42,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:49:42,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:49:42,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:49:42,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:49:42,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:49:42,996 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 04:49:43,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:49:43,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:49:43,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:49:43,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:49:43,044 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:49:43,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:49:43,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:49:43,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:49:43,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:49:43,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:49:43,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:49:43,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:49:43,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:49:43,045 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:49:43,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:49:43,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:49:43,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:49:43,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:49:43,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:49:43,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:49:43,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:49:43,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:49:43,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:49:43,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:49:43,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:49:43,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:49:43,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:49:43,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:49:43,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:49:43,049 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 04:49:43,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:49:43,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:49:43,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:49:43,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:49:43,370 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:49:43,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-1.i [2020-10-14 04:49:43,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a27aa41e/5dcf2f9ee71445ea91c6e859797304a0/FLAG02d2ca60a [2020-10-14 04:49:43,913 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:49:43,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-01-1.i [2020-10-14 04:49:43,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a27aa41e/5dcf2f9ee71445ea91c6e859797304a0/FLAG02d2ca60a [2020-10-14 04:49:44,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a27aa41e/5dcf2f9ee71445ea91c6e859797304a0 [2020-10-14 04:49:44,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:49:44,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:49:44,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:49:44,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:49:44,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:49:44,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d8a404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44, skipping insertion in model container [2020-10-14 04:49:44,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:49:44,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:49:44,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:49:44,681 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:49:44,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:49:44,785 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:49:44,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44 WrapperNode [2020-10-14 04:49:44,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:49:44,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:49:44,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:49:44,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:49:44,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (1/1) ... [2020-10-14 04:49:44,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:49:44,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:49:44,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:49:44,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:49:44,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (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 04:49:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:49:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:49:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:49:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 04:49:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 04:49:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 04:49:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 04:49:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 04:49:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 04:49:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 04:49:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 04:49:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 04:49:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 04:49:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 04:49:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 04:49:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 04:49:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 04:49:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 04:49:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 04:49:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 04:49:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 04:49:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 04:49:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 04:49:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 04:49:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 04:49:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 04:49:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 04:49:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 04:49:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 04:49:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 04:49:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 04:49:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 04:49:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 04:49:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 04:49:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 04:49:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 04:49:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 04:49:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 04:49:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 04:49:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 04:49:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 04:49:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 04:49:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 04:49:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 04:49:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 04:49:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 04:49:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 04:49:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 04:49:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 04:49:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 04:49:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 04:49:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 04:49:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 04:49:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 04:49:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 04:49:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 04:49:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 04:49:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 04:49:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 04:49:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 04:49:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 04:49:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 04:49:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 04:49:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 04:49:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 04:49:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:49:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:49:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 04:49:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 04:49:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 04:49:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:49:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:49:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:49:45,602 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:49:45,602 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-14 04:49:45,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:45 BoogieIcfgContainer [2020-10-14 04:49:45,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:49:45,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:49:45,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:49:45,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:49:45,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:49:44" (1/3) ... [2020-10-14 04:49:45,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e3001f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:45, skipping insertion in model container [2020-10-14 04:49:45,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:49:44" (2/3) ... [2020-10-14 04:49:45,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e3001f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:49:45, skipping insertion in model container [2020-10-14 04:49:45,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:49:45" (3/3) ... [2020-10-14 04:49:45,616 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-1.i [2020-10-14 04:49:45,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:49:45,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-10-14 04:49:45,649 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-10-14 04:49:45,675 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:49:45,676 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:49:45,676 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:49:45,676 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:49:45,677 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:49:45,677 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:49:45,677 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:49:45,677 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:49:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-10-14 04:49:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-14 04:49:45,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:45,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:45,710 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:45,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:45,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1861454184, now seen corresponding path program 1 times [2020-10-14 04:49:45,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:45,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921835651] [2020-10-14 04:49:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:45,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 04:49:46,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 04:49:46,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:46,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:46,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:49:46,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:46,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:46,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:49:46,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:46,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:46,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,140 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 04:49:46,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921835651] [2020-10-14 04:49:46,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:46,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:46,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955441291] [2020-10-14 04:49:46,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:46,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:46,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:46,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:46,166 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-10-14 04:49:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:46,382 INFO L93 Difference]: Finished difference Result 186 states and 302 transitions. [2020-10-14 04:49:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:46,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-14 04:49:46,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:46,395 INFO L225 Difference]: With dead ends: 186 [2020-10-14 04:49:46,395 INFO L226 Difference]: Without dead ends: 99 [2020-10-14 04:49:46,399 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 04:49:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-14 04:49:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2020-10-14 04:49:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 04:49:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2020-10-14 04:49:46,448 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 8 [2020-10-14 04:49:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:46,448 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2020-10-14 04:49:46,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2020-10-14 04:49:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:49:46,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:46,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:46,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:49:46,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:46,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1461031906, now seen corresponding path program 1 times [2020-10-14 04:49:46,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:46,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853686769] [2020-10-14 04:49:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 04:49:46,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 04:49:46,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 04:49:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:46,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:46,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:49:46,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:46,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:46,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,695 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 04:49:46,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853686769] [2020-10-14 04:49:46,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:46,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:46,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794734747] [2020-10-14 04:49:46,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:46,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:46,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:46,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:46,700 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2020-10-14 04:49:46,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:46,845 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2020-10-14 04:49:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:46,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-14 04:49:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:46,847 INFO L225 Difference]: With dead ends: 84 [2020-10-14 04:49:46,847 INFO L226 Difference]: Without dead ends: 82 [2020-10-14 04:49:46,848 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 04:49:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-14 04:49:46,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-14 04:49:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-14 04:49:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2020-10-14 04:49:46,859 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 14 [2020-10-14 04:49:46,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:46,859 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2020-10-14 04:49:46,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:46,859 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2020-10-14 04:49:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:49:46,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:46,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:46,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:49:46,861 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:46,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:46,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1461033828, now seen corresponding path program 1 times [2020-10-14 04:49:46,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:46,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153168696] [2020-10-14 04:49:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 04:49:46,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:46,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 04:49:46,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:46,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:46,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:46,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:46,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:46,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:49:46,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:46,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:46,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:46,993 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 04:49:46,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153168696] [2020-10-14 04:49:46,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:46,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:46,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171384000] [2020-10-14 04:49:46,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:46,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:46,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:46,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:46,996 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2020-10-14 04:49:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:47,225 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2020-10-14 04:49:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:49:47,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-14 04:49:47,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:47,228 INFO L225 Difference]: With dead ends: 138 [2020-10-14 04:49:47,228 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 04:49:47,229 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 04:49:47,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 04:49:47,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 84. [2020-10-14 04:49:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-14 04:49:47,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2020-10-14 04:49:47,239 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 14 [2020-10-14 04:49:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:47,239 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2020-10-14 04:49:47,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2020-10-14 04:49:47,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 04:49:47,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:47,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:47,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:49:47,241 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:47,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:47,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1462880870, now seen corresponding path program 1 times [2020-10-14 04:49:47,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:47,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862680211] [2020-10-14 04:49:47,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:47,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:47,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 04:49:47,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 04:49:47,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:47,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 04:49:47,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:47,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:47,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:47,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:47,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:47,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:47,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:47,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:47,458 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 04:49:47,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862680211] [2020-10-14 04:49:47,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:47,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:49:47,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064803115] [2020-10-14 04:49:47,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:47,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:47,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:47,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:47,462 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 6 states. [2020-10-14 04:49:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:47,805 INFO L93 Difference]: Finished difference Result 231 states and 255 transitions. [2020-10-14 04:49:47,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:47,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-14 04:49:47,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:47,810 INFO L225 Difference]: With dead ends: 231 [2020-10-14 04:49:47,810 INFO L226 Difference]: Without dead ends: 162 [2020-10-14 04:49:47,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-14 04:49:47,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 81. [2020-10-14 04:49:47,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-14 04:49:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2020-10-14 04:49:47,830 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 14 [2020-10-14 04:49:47,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:47,830 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2020-10-14 04:49:47,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2020-10-14 04:49:47,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 04:49:47,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:47,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:47,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:49:47,833 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:47,833 INFO L82 PathProgramCache]: Analyzing trace with hash 177734485, now seen corresponding path program 1 times [2020-10-14 04:49:47,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:47,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736833511] [2020-10-14 04:49:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:47,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:47,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 04:49:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:49:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-14 04:49:48,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:48,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:48,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:48,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:48,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:48,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:48,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,094 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 04:49:48,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736833511] [2020-10-14 04:49:48,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:48,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:48,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873344062] [2020-10-14 04:49:48,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:48,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:48,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:48,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:48,097 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2020-10-14 04:49:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:48,232 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2020-10-14 04:49:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:48,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 04:49:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:48,233 INFO L225 Difference]: With dead ends: 84 [2020-10-14 04:49:48,233 INFO L226 Difference]: Without dead ends: 80 [2020-10-14 04:49:48,234 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 04:49:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-14 04:49:48,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2020-10-14 04:49:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-14 04:49:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2020-10-14 04:49:48,240 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 19 [2020-10-14 04:49:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:48,241 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2020-10-14 04:49:48,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2020-10-14 04:49:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 04:49:48,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:48,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:48,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:49:48,242 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:48,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:48,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1214805939, now seen corresponding path program 1 times [2020-10-14 04:49:48,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:48,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555730026] [2020-10-14 04:49:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 04:49:48,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:49:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 04:49:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 04:49:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:48,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:48,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:48,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:48,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:48,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:48,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:48,485 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 04:49:48,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555730026] [2020-10-14 04:49:48,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:48,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:48,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714867455] [2020-10-14 04:49:48,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:48,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:48,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:48,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:48,487 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand 5 states. [2020-10-14 04:49:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:48,637 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2020-10-14 04:49:48,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:49:48,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-14 04:49:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:48,639 INFO L225 Difference]: With dead ends: 136 [2020-10-14 04:49:48,639 INFO L226 Difference]: Without dead ends: 116 [2020-10-14 04:49:48,639 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 04:49:48,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-14 04:49:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 76. [2020-10-14 04:49:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 04:49:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-14 04:49:48,645 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 20 [2020-10-14 04:49:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:48,646 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-14 04:49:48,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:48,646 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-14 04:49:48,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:49:48,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:48,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:48,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:49:48,647 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:48,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:48,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1924122782, now seen corresponding path program 1 times [2020-10-14 04:49:48,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:48,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751749975] [2020-10-14 04:49:48,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 04:49:48,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:48,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 04:49:48,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 04:49:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 04:49:48,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:48,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:48,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:48,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:48,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:48,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:48,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:48,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:48,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:48,803 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 04:49:48,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751749975] [2020-10-14 04:49:48,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:48,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:48,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287499233] [2020-10-14 04:49:48,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:48,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:48,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:48,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:48,806 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 4 states. [2020-10-14 04:49:48,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:48,930 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2020-10-14 04:49:48,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:48,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-14 04:49:48,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:48,932 INFO L225 Difference]: With dead ends: 102 [2020-10-14 04:49:48,932 INFO L226 Difference]: Without dead ends: 100 [2020-10-14 04:49:48,933 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 04:49:48,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-14 04:49:48,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 78. [2020-10-14 04:49:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-14 04:49:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-10-14 04:49:48,938 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 24 [2020-10-14 04:49:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:48,939 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-10-14 04:49:48,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-10-14 04:49:48,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-14 04:49:48,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:48,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:48,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:49:48,940 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:48,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:48,941 INFO L82 PathProgramCache]: Analyzing trace with hash -481740404, now seen corresponding path program 1 times [2020-10-14 04:49:48,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:48,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600573159] [2020-10-14 04:49:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 04:49:49,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:49:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 04:49:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 04:49:49,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 04:49:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:49,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:49,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:49,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:49,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:49,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:49,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:49,148 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 04:49:49,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600573159] [2020-10-14 04:49:49,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:49,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:49,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652166848] [2020-10-14 04:49:49,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:49,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:49,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:49,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:49,150 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 4 states. [2020-10-14 04:49:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:49,255 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2020-10-14 04:49:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:49,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-14 04:49:49,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:49,256 INFO L225 Difference]: With dead ends: 78 [2020-10-14 04:49:49,256 INFO L226 Difference]: Without dead ends: 76 [2020-10-14 04:49:49,257 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 04:49:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-14 04:49:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-14 04:49:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 04:49:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2020-10-14 04:49:49,261 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 25 [2020-10-14 04:49:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:49,261 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2020-10-14 04:49:49,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2020-10-14 04:49:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 04:49:49,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:49,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:49,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:49:49,263 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:49,264 INFO L82 PathProgramCache]: Analyzing trace with hash -611625627, now seen corresponding path program 1 times [2020-10-14 04:49:49,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:49,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022052694] [2020-10-14 04:49:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 04:49:49,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:49:49,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 04:49:49,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:49,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:49,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:49,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:49,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:49,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:49,546 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 04:49:49,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022052694] [2020-10-14 04:49:49,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:49,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:49,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600419568] [2020-10-14 04:49:49,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:49,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:49,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:49,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:49,549 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 5 states. [2020-10-14 04:49:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:49,760 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2020-10-14 04:49:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:49:49,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-14 04:49:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:49,761 INFO L225 Difference]: With dead ends: 188 [2020-10-14 04:49:49,762 INFO L226 Difference]: Without dead ends: 126 [2020-10-14 04:49:49,763 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 04:49:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-14 04:49:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 76. [2020-10-14 04:49:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 04:49:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-14 04:49:49,768 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 27 [2020-10-14 04:49:49,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:49,768 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-14 04:49:49,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:49,768 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-14 04:49:49,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 04:49:49,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:49,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:49,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:49:49,770 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:49,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:49,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1632693981, now seen corresponding path program 1 times [2020-10-14 04:49:49,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:49,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074961529] [2020-10-14 04:49:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 04:49:49,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 04:49:49,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:49,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 04:49:49,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 04:49:49,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:49,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:49,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:49,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:49,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:49,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:49,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:49,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:49,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:49,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:49,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:49,930 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 04:49:49,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074961529] [2020-10-14 04:49:49,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:49,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:49,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109554774] [2020-10-14 04:49:49,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:49,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:49,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:49,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:49,932 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 5 states. [2020-10-14 04:49:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:50,084 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2020-10-14 04:49:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:49:50,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-14 04:49:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:50,085 INFO L225 Difference]: With dead ends: 86 [2020-10-14 04:49:50,085 INFO L226 Difference]: Without dead ends: 84 [2020-10-14 04:49:50,086 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 04:49:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-14 04:49:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2020-10-14 04:49:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-14 04:49:50,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2020-10-14 04:49:50,090 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 27 [2020-10-14 04:49:50,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:50,090 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2020-10-14 04:49:50,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2020-10-14 04:49:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-14 04:49:50,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:50,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:50,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:49:50,092 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:50,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:50,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1630846939, now seen corresponding path program 1 times [2020-10-14 04:49:50,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:50,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675312187] [2020-10-14 04:49:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:50,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:50,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 04:49:50,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:50,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 04:49:50,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:50,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 04:49:50,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 04:49:50,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:50,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:50,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:50,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:50,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:50,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:50,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:50,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:50,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:50,287 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 04:49:50,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675312187] [2020-10-14 04:49:50,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:50,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:49:50,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514117630] [2020-10-14 04:49:50,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:50,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:50,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:50,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:50,289 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand 6 states. [2020-10-14 04:49:50,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:50,482 INFO L93 Difference]: Finished difference Result 147 states and 168 transitions. [2020-10-14 04:49:50,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:49:50,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-14 04:49:50,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:50,483 INFO L225 Difference]: With dead ends: 147 [2020-10-14 04:49:50,484 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 04:49:50,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 04:49:50,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 76. [2020-10-14 04:49:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-14 04:49:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2020-10-14 04:49:50,488 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 27 [2020-10-14 04:49:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:50,489 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2020-10-14 04:49:50,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2020-10-14 04:49:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 04:49:50,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:50,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:50,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:49:50,490 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:50,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:50,491 INFO L82 PathProgramCache]: Analyzing trace with hash 668074133, now seen corresponding path program 1 times [2020-10-14 04:49:50,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:50,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609455197] [2020-10-14 04:49:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:50,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:50,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:49:50,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:49:50,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 04:49:50,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:50,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:50,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:50,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 04:49:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:50,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:50,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:50,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:50,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:50,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:50,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:50,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:50,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:50,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:50,713 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 04:49:50,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609455197] [2020-10-14 04:49:50,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:50,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:49:50,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565697692] [2020-10-14 04:49:50,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:50,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:50,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:50,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:50,715 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2020-10-14 04:49:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:50,965 INFO L93 Difference]: Finished difference Result 176 states and 198 transitions. [2020-10-14 04:49:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:49:50,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-14 04:49:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:50,966 INFO L225 Difference]: With dead ends: 176 [2020-10-14 04:49:50,966 INFO L226 Difference]: Without dead ends: 135 [2020-10-14 04:49:50,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:49:50,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-14 04:49:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 86. [2020-10-14 04:49:50,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-14 04:49:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2020-10-14 04:49:50,971 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 28 [2020-10-14 04:49:50,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:50,972 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2020-10-14 04:49:50,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2020-10-14 04:49:50,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 04:49:50,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:50,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:50,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:49:50,973 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:50,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:50,974 INFO L82 PathProgramCache]: Analyzing trace with hash 567478293, now seen corresponding path program 1 times [2020-10-14 04:49:50,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:50,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838628993] [2020-10-14 04:49:50,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:50,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:51,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:49:51,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-14 04:49:51,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:51,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:49:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:51,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 04:49:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:51,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:51,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:51,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:51,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:51,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:49:51,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:51,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:51,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:51,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:51,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:51,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:51,737 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 04:49:51,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838628993] [2020-10-14 04:49:51,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:51,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:49:51,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753169206] [2020-10-14 04:49:51,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:51,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:51,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:51,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:51,740 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand 8 states. [2020-10-14 04:49:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:52,484 INFO L93 Difference]: Finished difference Result 234 states and 259 transitions. [2020-10-14 04:49:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:49:52,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-14 04:49:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:52,486 INFO L225 Difference]: With dead ends: 234 [2020-10-14 04:49:52,487 INFO L226 Difference]: Without dead ends: 232 [2020-10-14 04:49:52,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:49:52,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-10-14 04:49:52,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 98. [2020-10-14 04:49:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-14 04:49:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2020-10-14 04:49:52,494 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 28 [2020-10-14 04:49:52,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:52,494 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2020-10-14 04:49:52,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:52,495 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2020-10-14 04:49:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-14 04:49:52,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:52,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:52,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:49:52,496 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:52,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1429819819, now seen corresponding path program 1 times [2020-10-14 04:49:52,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:52,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921133003] [2020-10-14 04:49:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:52,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:52,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 04:49:52,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-14 04:49:52,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:52,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 04:49:52,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:49:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:52,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:52,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:52,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:52,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:52,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:52,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:52,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:52,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:49:52,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921133003] [2020-10-14 04:49:52,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:52,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:52,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166720111] [2020-10-14 04:49:52,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:52,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:52,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:52,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:52,759 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand 4 states. [2020-10-14 04:49:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:52,888 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2020-10-14 04:49:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:52,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-14 04:49:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:52,889 INFO L225 Difference]: With dead ends: 98 [2020-10-14 04:49:52,889 INFO L226 Difference]: Without dead ends: 96 [2020-10-14 04:49:52,890 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 04:49:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-14 04:49:52,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-14 04:49:52,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-14 04:49:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2020-10-14 04:49:52,897 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 30 [2020-10-14 04:49:52,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:52,897 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2020-10-14 04:49:52,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2020-10-14 04:49:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 04:49:52,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:52,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:52,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 04:49:52,899 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:52,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:52,900 INFO L82 PathProgramCache]: Analyzing trace with hash 758661948, now seen corresponding path program 1 times [2020-10-14 04:49:52,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:52,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234599860] [2020-10-14 04:49:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:52,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:52,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:53,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 04:49:53,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:49:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-14 04:49:53,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:53,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:49:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:49:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:53,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:53,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:53,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:53,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:53,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:53,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:53,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:53,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:53,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:53,445 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 04:49:53,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234599860] [2020-10-14 04:49:53,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:53,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 04:49:53,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818338101] [2020-10-14 04:49:53,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:49:53,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:53,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:49:53,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:53,448 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 8 states. [2020-10-14 04:49:53,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:53,914 INFO L93 Difference]: Finished difference Result 216 states and 240 transitions. [2020-10-14 04:49:53,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:49:53,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2020-10-14 04:49:53,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:53,916 INFO L225 Difference]: With dead ends: 216 [2020-10-14 04:49:53,916 INFO L226 Difference]: Without dead ends: 214 [2020-10-14 04:49:53,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:49:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-14 04:49:53,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 99. [2020-10-14 04:49:53,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-14 04:49:53,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2020-10-14 04:49:53,924 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 31 [2020-10-14 04:49:53,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:53,924 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2020-10-14 04:49:53,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:49:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2020-10-14 04:49:53,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 04:49:53,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:53,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:53,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 04:49:53,926 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:53,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1719230162, now seen corresponding path program 1 times [2020-10-14 04:49:53,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:53,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808340894] [2020-10-14 04:49:53,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:53,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:54,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 04:49:54,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:49:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-14 04:49:54,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:54,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:49:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:49:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 04:49:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:54,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:54,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:54,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:54,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:54,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:54,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:54,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:54,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:49:54,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808340894] [2020-10-14 04:49:54,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:54,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:49:54,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773511401] [2020-10-14 04:49:54,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:54,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:54,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:54,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:54,442 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 5 states. [2020-10-14 04:49:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:54,614 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2020-10-14 04:49:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:49:54,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-14 04:49:54,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:54,615 INFO L225 Difference]: With dead ends: 142 [2020-10-14 04:49:54,615 INFO L226 Difference]: Without dead ends: 126 [2020-10-14 04:49:54,616 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 04:49:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-14 04:49:54,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 118. [2020-10-14 04:49:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-14 04:49:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 138 transitions. [2020-10-14 04:49:54,627 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 138 transitions. Word has length 33 [2020-10-14 04:49:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:54,628 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 138 transitions. [2020-10-14 04:49:54,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:54,628 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 138 transitions. [2020-10-14 04:49:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 04:49:54,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:54,629 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 04:49:54,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 04:49:54,629 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:54,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:54,630 INFO L82 PathProgramCache]: Analyzing trace with hash -999338862, now seen corresponding path program 1 times [2020-10-14 04:49:54,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:54,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937258018] [2020-10-14 04:49:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:54,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:54,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 04:49:54,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 04:49:54,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:54,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:49:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:54,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:49:54,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:54,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:54,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:54,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:54,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:49:54,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:54,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:54,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:54,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:54,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:54,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937258018] [2020-10-14 04:49:54,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:54,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:49:54,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932768653] [2020-10-14 04:49:54,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:49:54,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:54,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:49:54,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:49:54,769 INFO L87 Difference]: Start difference. First operand 118 states and 138 transitions. Second operand 6 states. [2020-10-14 04:49:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:54,999 INFO L93 Difference]: Finished difference Result 202 states and 232 transitions. [2020-10-14 04:49:54,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:54,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-14 04:49:54,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:55,000 INFO L225 Difference]: With dead ends: 202 [2020-10-14 04:49:55,000 INFO L226 Difference]: Without dead ends: 144 [2020-10-14 04:49:55,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:49:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-14 04:49:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 121. [2020-10-14 04:49:55,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-14 04:49:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2020-10-14 04:49:55,008 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 33 [2020-10-14 04:49:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:55,008 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2020-10-14 04:49:55,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:49:55,009 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2020-10-14 04:49:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 04:49:55,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:55,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:55,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 04:49:55,010 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:55,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2072098386, now seen corresponding path program 1 times [2020-10-14 04:49:55,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:55,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33763980] [2020-10-14 04:49:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:55,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:55,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 04:49:55,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 04:49:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-14 04:49:55,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:55,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:49:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:55,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 04:49:55,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:55,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:55,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:55,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:55,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:55,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:55,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:49:55,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33763980] [2020-10-14 04:49:55,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:55,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 04:49:55,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557037957] [2020-10-14 04:49:55,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:49:55,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:55,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:49:55,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:49:55,861 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 7 states. [2020-10-14 04:49:56,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:56,184 INFO L93 Difference]: Finished difference Result 160 states and 177 transitions. [2020-10-14 04:49:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:56,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-14 04:49:56,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:56,185 INFO L225 Difference]: With dead ends: 160 [2020-10-14 04:49:56,186 INFO L226 Difference]: Without dead ends: 158 [2020-10-14 04:49:56,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:49:56,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-14 04:49:56,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 127. [2020-10-14 04:49:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 04:49:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-10-14 04:49:56,199 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 33 [2020-10-14 04:49:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:56,199 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-10-14 04:49:56,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:49:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-10-14 04:49:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-14 04:49:56,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:56,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:56,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 04:49:56,200 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:56,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:56,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1941174974, now seen corresponding path program 1 times [2020-10-14 04:49:56,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:56,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025252085] [2020-10-14 04:49:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 04:49:56,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 04:49:56,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 04:49:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:49:56,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:56,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:56,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:56,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:56,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025252085] [2020-10-14 04:49:56,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:56,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:56,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127705473] [2020-10-14 04:49:56,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:56,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:56,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:56,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:56,261 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 4 states. [2020-10-14 04:49:56,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:56,373 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2020-10-14 04:49:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:56,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-14 04:49:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:56,375 INFO L225 Difference]: With dead ends: 164 [2020-10-14 04:49:56,376 INFO L226 Difference]: Without dead ends: 162 [2020-10-14 04:49:56,376 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 04:49:56,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-14 04:49:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2020-10-14 04:49:56,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-14 04:49:56,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2020-10-14 04:49:56,386 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 35 [2020-10-14 04:49:56,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:56,386 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2020-10-14 04:49:56,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:56,386 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2020-10-14 04:49:56,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-14 04:49:56,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:56,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:56,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 04:49:56,387 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:56,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1766986308, now seen corresponding path program 1 times [2020-10-14 04:49:56,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:56,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71888534] [2020-10-14 04:49:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 04:49:56,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 04:49:56,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:49:56,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 04:49:56,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 04:49:56,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:56,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:56,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:56,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:56,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71888534] [2020-10-14 04:49:56,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:56,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:49:56,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594585100] [2020-10-14 04:49:56,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:49:56,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:56,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:49:56,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:49:56,455 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand 4 states. [2020-10-14 04:49:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:56,586 INFO L93 Difference]: Finished difference Result 265 states and 310 transitions. [2020-10-14 04:49:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:49:56,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-14 04:49:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:56,588 INFO L225 Difference]: With dead ends: 265 [2020-10-14 04:49:56,588 INFO L226 Difference]: Without dead ends: 178 [2020-10-14 04:49:56,589 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 04:49:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-14 04:49:56,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 148. [2020-10-14 04:49:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-14 04:49:56,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 172 transitions. [2020-10-14 04:49:56,597 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 172 transitions. Word has length 35 [2020-10-14 04:49:56,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:56,597 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 172 transitions. [2020-10-14 04:49:56,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:49:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 172 transitions. [2020-10-14 04:49:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 04:49:56,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:56,598 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, 1, 1, 1] [2020-10-14 04:49:56,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 04:49:56,599 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:56,600 INFO L82 PathProgramCache]: Analyzing trace with hash 930038423, now seen corresponding path program 1 times [2020-10-14 04:49:56,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:56,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104884566] [2020-10-14 04:49:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 04:49:56,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:49:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 04:49:56,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:49:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:56,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 04:49:56,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:56,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:56,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:56,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:56,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:56,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:56,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:56,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:56,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:56,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:56,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:49:56,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104884566] [2020-10-14 04:49:56,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:56,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:49:56,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056250890] [2020-10-14 04:49:56,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:49:56,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:56,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:49:56,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:56,807 INFO L87 Difference]: Start difference. First operand 148 states and 172 transitions. Second operand 5 states. [2020-10-14 04:49:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:56,963 INFO L93 Difference]: Finished difference Result 179 states and 201 transitions. [2020-10-14 04:49:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:49:56,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-14 04:49:56,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:56,964 INFO L225 Difference]: With dead ends: 179 [2020-10-14 04:49:56,964 INFO L226 Difference]: Without dead ends: 148 [2020-10-14 04:49:56,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:49:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-14 04:49:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2020-10-14 04:49:56,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-14 04:49:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2020-10-14 04:49:56,972 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 36 [2020-10-14 04:49:56,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:56,973 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2020-10-14 04:49:56,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:49:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2020-10-14 04:49:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 04:49:56,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:56,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:56,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 04:49:56,974 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1686129693, now seen corresponding path program 1 times [2020-10-14 04:49:56,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:56,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243894926] [2020-10-14 04:49:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:56,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:58,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 04:49:58,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 04:49:58,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1058 [2020-10-14 04:49:58,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:58,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:49:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 04:49:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:58,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:58,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:58,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:58,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:58,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:58,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:58,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:49:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:49:58,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243894926] [2020-10-14 04:49:58,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:49:58,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 04:49:58,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797403626] [2020-10-14 04:49:58,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:49:58,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:58,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:49:58,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:49:58,180 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 7 states. [2020-10-14 04:49:58,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:58,512 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2020-10-14 04:49:58,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:49:58,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-14 04:49:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:58,515 INFO L225 Difference]: With dead ends: 164 [2020-10-14 04:49:58,515 INFO L226 Difference]: Without dead ends: 149 [2020-10-14 04:49:58,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:49:58,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-14 04:49:58,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2020-10-14 04:49:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 04:49:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-10-14 04:49:58,526 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 36 [2020-10-14 04:49:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:58,526 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-10-14 04:49:58,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:49:58,527 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-10-14 04:49:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 04:49:58,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:58,527 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] [2020-10-14 04:49:58,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 04:49:58,528 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:49:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:58,528 INFO L82 PathProgramCache]: Analyzing trace with hash -928805065, now seen corresponding path program 1 times [2020-10-14 04:49:58,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:58,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337402148] [2020-10-14 04:49:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:58,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:59,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:01,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 04:50:01,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 04:50:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2903 [2020-10-14 04:50:01,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:01,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:50:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 04:50:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 04:50:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:01,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:01,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:01,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:01,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:01,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:01,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:01,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:50:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:01,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337402148] [2020-10-14 04:50:01,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:50:01,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:50:01,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619216679] [2020-10-14 04:50:01,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:50:01,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:01,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:50:01,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:50:01,494 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 4 states. [2020-10-14 04:50:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:01,641 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2020-10-14 04:50:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:50:01,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-14 04:50:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:01,643 INFO L225 Difference]: With dead ends: 212 [2020-10-14 04:50:01,643 INFO L226 Difference]: Without dead ends: 140 [2020-10-14 04:50:01,644 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 04:50:01,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-14 04:50:01,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 120. [2020-10-14 04:50:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 04:50:01,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 135 transitions. [2020-10-14 04:50:01,651 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 135 transitions. Word has length 39 [2020-10-14 04:50:01,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:01,651 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 135 transitions. [2020-10-14 04:50:01,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:50:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 135 transitions. [2020-10-14 04:50:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 04:50:01,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:01,652 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:01,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 04:50:01,652 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:01,653 INFO L82 PathProgramCache]: Analyzing trace with hash -871546763, now seen corresponding path program 1 times [2020-10-14 04:50:01,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:01,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345528948] [2020-10-14 04:50:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:01,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:01,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:02,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:02,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:02,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:02,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:02,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:03,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 04:50:03,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:50:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1781 [2020-10-14 04:50:03,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:03,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:50:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 04:50:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:50:03,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:03,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:03,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:03,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:03,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:03,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:03,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:03,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:03,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345528948] [2020-10-14 04:50:03,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:50:03,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 04:50:03,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156880025] [2020-10-14 04:50:03,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:50:03,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:03,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:50:03,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:50:03,504 INFO L87 Difference]: Start difference. First operand 120 states and 135 transitions. Second operand 6 states. [2020-10-14 04:50:03,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:03,652 INFO L93 Difference]: Finished difference Result 156 states and 175 transitions. [2020-10-14 04:50:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:50:03,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-14 04:50:03,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:03,653 INFO L225 Difference]: With dead ends: 156 [2020-10-14 04:50:03,654 INFO L226 Difference]: Without dead ends: 78 [2020-10-14 04:50:03,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:50:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-14 04:50:03,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2020-10-14 04:50:03,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-14 04:50:03,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2020-10-14 04:50:03,659 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 39 [2020-10-14 04:50:03,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:03,659 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2020-10-14 04:50:03,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:50:03,659 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2020-10-14 04:50:03,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 04:50:03,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:03,660 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:03,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 04:50:03,660 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:03,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:03,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1341973316, now seen corresponding path program 1 times [2020-10-14 04:50:03,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:03,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509885019] [2020-10-14 04:50:03,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:03,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:04,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:05,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:05,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 04:50:05,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:50:05,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1524 [2020-10-14 04:50:05,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:05,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:05,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:05,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:50:05,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 04:50:05,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:05,408 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-10-14 04:50:05,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:05,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:05,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:05,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:05,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:05,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:05,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:05,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:05,535 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 04:50:05,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509885019] [2020-10-14 04:50:05,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:05,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:05,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9163392] [2020-10-14 04:50:05,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:05,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:05,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:05,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:05,537 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 10 states. [2020-10-14 04:50:06,036 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-10-14 04:50:06,175 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-10-14 04:50:06,491 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-10-14 04:50:06,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:06,677 INFO L93 Difference]: Finished difference Result 176 states and 192 transitions. [2020-10-14 04:50:06,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 04:50:06,678 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2020-10-14 04:50:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:06,679 INFO L225 Difference]: With dead ends: 176 [2020-10-14 04:50:06,679 INFO L226 Difference]: Without dead ends: 174 [2020-10-14 04:50:06,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:06,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-14 04:50:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 100. [2020-10-14 04:50:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-14 04:50:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 111 transitions. [2020-10-14 04:50:06,687 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 111 transitions. Word has length 40 [2020-10-14 04:50:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:06,688 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 111 transitions. [2020-10-14 04:50:06,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 111 transitions. [2020-10-14 04:50:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 04:50:06,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:06,688 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:06,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 04:50:06,689 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:06,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1979917628, now seen corresponding path program 1 times [2020-10-14 04:50:06,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:06,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206227578] [2020-10-14 04:50:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:06,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:06,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:06,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:06,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:06,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:07,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:07,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:07,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:08,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:08,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:08,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:08,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:08,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 04:50:08,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:50:08,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2170 [2020-10-14 04:50:08,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:08,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:08,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:08,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:08,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 04:50:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:09,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:09,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:09,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:09,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:09,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:09,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:09,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:09,186 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 04:50:09,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206227578] [2020-10-14 04:50:09,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:09,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:09,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885405282] [2020-10-14 04:50:09,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:09,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:09,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:09,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:09,189 INFO L87 Difference]: Start difference. First operand 100 states and 111 transitions. Second operand 11 states. [2020-10-14 04:50:09,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:09,794 INFO L93 Difference]: Finished difference Result 221 states and 245 transitions. [2020-10-14 04:50:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:50:09,795 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-14 04:50:09,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:09,797 INFO L225 Difference]: With dead ends: 221 [2020-10-14 04:50:09,797 INFO L226 Difference]: Without dead ends: 180 [2020-10-14 04:50:09,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:50:09,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-14 04:50:09,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 96. [2020-10-14 04:50:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-14 04:50:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2020-10-14 04:50:09,808 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 40 [2020-10-14 04:50:09,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:09,808 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2020-10-14 04:50:09,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2020-10-14 04:50:09,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 04:50:09,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:09,809 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:09,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 04:50:09,809 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:09,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:09,810 INFO L82 PathProgramCache]: Analyzing trace with hash -2026576836, now seen corresponding path program 1 times [2020-10-14 04:50:09,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:09,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115471903] [2020-10-14 04:50:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:09,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:09,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:09,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 04:50:09,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:10,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 04:50:10,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:10,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:10,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:50:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:10,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:10,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:10,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:10,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:10,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:10,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:10,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:10,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:10,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:10,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:10,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:10,270 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 04:50:10,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115471903] [2020-10-14 04:50:10,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:10,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:10,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928572837] [2020-10-14 04:50:10,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:10,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:10,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:10,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:10,272 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 11 states. [2020-10-14 04:50:11,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:11,582 INFO L93 Difference]: Finished difference Result 228 states and 250 transitions. [2020-10-14 04:50:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:50:11,582 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-14 04:50:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:11,585 INFO L225 Difference]: With dead ends: 228 [2020-10-14 04:50:11,585 INFO L226 Difference]: Without dead ends: 226 [2020-10-14 04:50:11,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:50:11,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-14 04:50:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 118. [2020-10-14 04:50:11,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-14 04:50:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 132 transitions. [2020-10-14 04:50:11,604 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 132 transitions. Word has length 40 [2020-10-14 04:50:11,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:11,604 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 132 transitions. [2020-10-14 04:50:11,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:11,604 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 132 transitions. [2020-10-14 04:50:11,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 04:50:11,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:11,605 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:11,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 04:50:11,606 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:11,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:11,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1295314108, now seen corresponding path program 1 times [2020-10-14 04:50:11,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:11,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767966486] [2020-10-14 04:50:11,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:11,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:11,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:11,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 04:50:11,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:11,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-14 04:50:11,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:11,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:50:11,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:12,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:12,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:12,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:12,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:12,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:12,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:12,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:12,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:12,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:12,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:12,169 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 04:50:12,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767966486] [2020-10-14 04:50:12,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:12,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:12,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438624099] [2020-10-14 04:50:12,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:12,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:12,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:12,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:12,171 INFO L87 Difference]: Start difference. First operand 118 states and 132 transitions. Second operand 11 states. [2020-10-14 04:50:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:13,287 INFO L93 Difference]: Finished difference Result 232 states and 255 transitions. [2020-10-14 04:50:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:50:13,288 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-14 04:50:13,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:13,291 INFO L225 Difference]: With dead ends: 232 [2020-10-14 04:50:13,291 INFO L226 Difference]: Without dead ends: 230 [2020-10-14 04:50:13,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:13,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-14 04:50:13,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 102. [2020-10-14 04:50:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 04:50:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2020-10-14 04:50:13,309 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 40 [2020-10-14 04:50:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:13,309 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2020-10-14 04:50:13,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2020-10-14 04:50:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 04:50:13,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:13,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:13,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 04:50:13,311 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:13,311 INFO L82 PathProgramCache]: Analyzing trace with hash 608870837, now seen corresponding path program 1 times [2020-10-14 04:50:13,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:13,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542734483] [2020-10-14 04:50:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:13,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:13,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:13,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:13,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:13,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 04:50:13,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:50:13,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-14 04:50:13,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:13,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 04:50:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:14,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:14,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:14,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:14,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:14,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:14,172 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 04:50:14,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542734483] [2020-10-14 04:50:14,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:14,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:14,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810616038] [2020-10-14 04:50:14,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:14,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:14,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:14,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:14,173 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand 11 states. [2020-10-14 04:50:15,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:15,111 INFO L93 Difference]: Finished difference Result 232 states and 255 transitions. [2020-10-14 04:50:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:50:15,111 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-10-14 04:50:15,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:15,114 INFO L225 Difference]: With dead ends: 232 [2020-10-14 04:50:15,114 INFO L226 Difference]: Without dead ends: 230 [2020-10-14 04:50:15,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:50:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-14 04:50:15,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 127. [2020-10-14 04:50:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-14 04:50:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 142 transitions. [2020-10-14 04:50:15,137 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 142 transitions. Word has length 43 [2020-10-14 04:50:15,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:15,137 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 142 transitions. [2020-10-14 04:50:15,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:15,138 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 142 transitions. [2020-10-14 04:50:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 04:50:15,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:15,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:15,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 04:50:15,139 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:15,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:15,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1574450891, now seen corresponding path program 1 times [2020-10-14 04:50:15,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:15,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539176198] [2020-10-14 04:50:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:15,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:15,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:15,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:15,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:15,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 04:50:15,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:16,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:16,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:16,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:16,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:16,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:16,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:16,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:16,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:16,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:16,217 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 04:50:16,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539176198] [2020-10-14 04:50:16,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:16,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:16,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295828542] [2020-10-14 04:50:16,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:16,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:16,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:16,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:16,219 INFO L87 Difference]: Start difference. First operand 127 states and 142 transitions. Second operand 11 states. [2020-10-14 04:50:17,127 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-10-14 04:50:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:17,306 INFO L93 Difference]: Finished difference Result 233 states and 256 transitions. [2020-10-14 04:50:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:50:17,307 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-10-14 04:50:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:17,309 INFO L225 Difference]: With dead ends: 233 [2020-10-14 04:50:17,309 INFO L226 Difference]: Without dead ends: 231 [2020-10-14 04:50:17,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:17,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-14 04:50:17,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 105. [2020-10-14 04:50:17,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-14 04:50:17,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2020-10-14 04:50:17,319 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 43 [2020-10-14 04:50:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:17,319 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2020-10-14 04:50:17,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2020-10-14 04:50:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:50:17,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:17,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:17,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 04:50:17,321 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:17,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:17,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1842084505, now seen corresponding path program 1 times [2020-10-14 04:50:17,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:17,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235105532] [2020-10-14 04:50:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:17,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:17,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:17,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:17,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:17,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:19,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:19,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:50:19,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 04:50:19,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1816 [2020-10-14 04:50:19,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:19,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 04:50:19,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 04:50:19,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:19,356 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-10-14 04:50:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:19,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:19,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:19,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:19,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:19,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:19,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:19,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:50:19,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235105532] [2020-10-14 04:50:19,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:19,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:19,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387178159] [2020-10-14 04:50:19,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:19,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:19,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:19,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:19,526 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand 9 states. [2020-10-14 04:50:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:20,240 INFO L93 Difference]: Finished difference Result 165 states and 183 transitions. [2020-10-14 04:50:20,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:50:20,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:50:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:20,243 INFO L225 Difference]: With dead ends: 165 [2020-10-14 04:50:20,243 INFO L226 Difference]: Without dead ends: 163 [2020-10-14 04:50:20,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:50:20,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-14 04:50:20,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 143. [2020-10-14 04:50:20,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-14 04:50:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 162 transitions. [2020-10-14 04:50:20,262 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 162 transitions. Word has length 45 [2020-10-14 04:50:20,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:20,262 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 162 transitions. [2020-10-14 04:50:20,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 162 transitions. [2020-10-14 04:50:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:50:20,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:20,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:20,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 04:50:20,264 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:20,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1122193205, now seen corresponding path program 1 times [2020-10-14 04:50:20,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:20,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082369485] [2020-10-14 04:50:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:20,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:20,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:20,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:20,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:20,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:20,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:50:20,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:20,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-14 04:50:20,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:20,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:20,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 04:50:20,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:20,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:20,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:20,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:20,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:20,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:20,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:20,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:20,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:20,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082369485] [2020-10-14 04:50:20,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:20,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:20,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617078367] [2020-10-14 04:50:20,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:20,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:20,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:20,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:20,843 INFO L87 Difference]: Start difference. First operand 143 states and 162 transitions. Second operand 9 states. [2020-10-14 04:50:21,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:21,651 INFO L93 Difference]: Finished difference Result 336 states and 384 transitions. [2020-10-14 04:50:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 04:50:21,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:50:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:21,653 INFO L225 Difference]: With dead ends: 336 [2020-10-14 04:50:21,653 INFO L226 Difference]: Without dead ends: 278 [2020-10-14 04:50:21,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:50:21,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-14 04:50:21,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 208. [2020-10-14 04:50:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-14 04:50:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 239 transitions. [2020-10-14 04:50:21,668 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 239 transitions. Word has length 45 [2020-10-14 04:50:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:21,668 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 239 transitions. [2020-10-14 04:50:21,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 239 transitions. [2020-10-14 04:50:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:50:21,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:21,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:21,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 04:50:21,670 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:21,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:21,670 INFO L82 PathProgramCache]: Analyzing trace with hash 224742631, now seen corresponding path program 1 times [2020-10-14 04:50:21,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:21,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627832666] [2020-10-14 04:50:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:21,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:21,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:21,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:21,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:22,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:23,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:23,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:23,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:24,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:24,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:50:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 04:50:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2609 [2020-10-14 04:50:24,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:24,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:24,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 04:50:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:24,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:24,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:24,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:24,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:24,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:24,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:24,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:24,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:50:24,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627832666] [2020-10-14 04:50:24,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:24,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:24,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106252773] [2020-10-14 04:50:24,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:24,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:24,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:24,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:24,468 INFO L87 Difference]: Start difference. First operand 208 states and 239 transitions. Second operand 9 states. [2020-10-14 04:50:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:24,817 INFO L93 Difference]: Finished difference Result 272 states and 309 transitions. [2020-10-14 04:50:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:50:24,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:50:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:24,820 INFO L225 Difference]: With dead ends: 272 [2020-10-14 04:50:24,820 INFO L226 Difference]: Without dead ends: 252 [2020-10-14 04:50:24,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-14 04:50:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 200. [2020-10-14 04:50:24,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-14 04:50:24,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 230 transitions. [2020-10-14 04:50:24,846 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 230 transitions. Word has length 45 [2020-10-14 04:50:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:24,846 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 230 transitions. [2020-10-14 04:50:24,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 230 transitions. [2020-10-14 04:50:24,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:50:24,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:24,848 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:24,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 04:50:24,849 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:24,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:24,849 INFO L82 PathProgramCache]: Analyzing trace with hash 944633931, now seen corresponding path program 1 times [2020-10-14 04:50:24,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:24,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625178630] [2020-10-14 04:50:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:24,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:24,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:25,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:25,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:50:25,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:25,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-14 04:50:25,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:25,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 04:50:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:25,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:25,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:25,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:25,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:25,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:25,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:25,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:25,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:25,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625178630] [2020-10-14 04:50:25,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:25,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:25,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507795243] [2020-10-14 04:50:25,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:25,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:25,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:25,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:25,598 INFO L87 Difference]: Start difference. First operand 200 states and 230 transitions. Second operand 10 states. [2020-10-14 04:50:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:26,691 INFO L93 Difference]: Finished difference Result 387 states and 439 transitions. [2020-10-14 04:50:26,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:50:26,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2020-10-14 04:50:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:26,695 INFO L225 Difference]: With dead ends: 387 [2020-10-14 04:50:26,695 INFO L226 Difference]: Without dead ends: 385 [2020-10-14 04:50:26,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:50:26,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-10-14 04:50:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 253. [2020-10-14 04:50:26,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-14 04:50:26,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 290 transitions. [2020-10-14 04:50:26,717 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 290 transitions. Word has length 45 [2020-10-14 04:50:26,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:26,717 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 290 transitions. [2020-10-14 04:50:26,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 290 transitions. [2020-10-14 04:50:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:50:26,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:26,718 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:26,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 04:50:26,719 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:26,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:26,719 INFO L82 PathProgramCache]: Analyzing trace with hash 7532007, now seen corresponding path program 1 times [2020-10-14 04:50:26,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:26,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032516872] [2020-10-14 04:50:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:26,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:26,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:26,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:26,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:26,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:26,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:27,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:27,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:27,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:27,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:27,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:50:27,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 04:50:27,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 929 [2020-10-14 04:50:27,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:27,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 04:50:27,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:27,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:27,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:27,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:27,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:27,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:27,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:27,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:27,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:27,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:27,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032516872] [2020-10-14 04:50:27,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:27,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:27,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372760029] [2020-10-14 04:50:27,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:27,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:27,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:27,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:27,748 INFO L87 Difference]: Start difference. First operand 253 states and 290 transitions. Second operand 9 states. [2020-10-14 04:50:28,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:28,153 INFO L93 Difference]: Finished difference Result 377 states and 426 transitions. [2020-10-14 04:50:28,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:50:28,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:50:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:28,156 INFO L225 Difference]: With dead ends: 377 [2020-10-14 04:50:28,156 INFO L226 Difference]: Without dead ends: 337 [2020-10-14 04:50:28,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-14 04:50:28,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 270. [2020-10-14 04:50:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-14 04:50:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 309 transitions. [2020-10-14 04:50:28,181 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 309 transitions. Word has length 45 [2020-10-14 04:50:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:28,182 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 309 transitions. [2020-10-14 04:50:28,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 309 transitions. [2020-10-14 04:50:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 04:50:28,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:28,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:28,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 04:50:28,183 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:28,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:28,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2074359143, now seen corresponding path program 1 times [2020-10-14 04:50:28,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:28,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904596804] [2020-10-14 04:50:28,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:28,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:28,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:28,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:29,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:29,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:29,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:29,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:29,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 04:50:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 04:50:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-10-14 04:50:29,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:29,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 04:50:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:29,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:29,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:29,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:29,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:29,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:29,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:29,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:29,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904596804] [2020-10-14 04:50:29,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:29,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:29,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462129762] [2020-10-14 04:50:29,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:29,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:29,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:29,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:29,574 INFO L87 Difference]: Start difference. First operand 270 states and 309 transitions. Second operand 9 states. [2020-10-14 04:50:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:30,017 INFO L93 Difference]: Finished difference Result 349 states and 393 transitions. [2020-10-14 04:50:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:50:30,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-10-14 04:50:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:30,020 INFO L225 Difference]: With dead ends: 349 [2020-10-14 04:50:30,020 INFO L226 Difference]: Without dead ends: 303 [2020-10-14 04:50:30,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:50:30,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-14 04:50:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 253. [2020-10-14 04:50:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-14 04:50:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 287 transitions. [2020-10-14 04:50:30,043 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 287 transitions. Word has length 45 [2020-10-14 04:50:30,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:30,044 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 287 transitions. [2020-10-14 04:50:30,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:30,044 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 287 transitions. [2020-10-14 04:50:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:50:30,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:30,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:30,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 04:50:30,045 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:30,046 INFO L82 PathProgramCache]: Analyzing trace with hash 288442302, now seen corresponding path program 1 times [2020-10-14 04:50:30,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:30,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810669098] [2020-10-14 04:50:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:30,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:30,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:50:30,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:50:30,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-10-14 04:50:30,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:30,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:30,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 04:50:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:30,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 04:50:30,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810669098] [2020-10-14 04:50:30,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:30,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:50:30,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478288421] [2020-10-14 04:50:30,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:50:30,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:30,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:50:30,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:50:30,874 INFO L87 Difference]: Start difference. First operand 253 states and 287 transitions. Second operand 8 states. [2020-10-14 04:50:31,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:31,402 INFO L93 Difference]: Finished difference Result 329 states and 372 transitions. [2020-10-14 04:50:31,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:50:31,403 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-10-14 04:50:31,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:31,407 INFO L225 Difference]: With dead ends: 329 [2020-10-14 04:50:31,407 INFO L226 Difference]: Without dead ends: 313 [2020-10-14 04:50:31,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:31,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-14 04:50:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 299. [2020-10-14 04:50:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-14 04:50:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 344 transitions. [2020-10-14 04:50:31,434 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 344 transitions. Word has length 48 [2020-10-14 04:50:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:31,435 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 344 transitions. [2020-10-14 04:50:31,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:50:31,435 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 344 transitions. [2020-10-14 04:50:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:50:31,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:31,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:31,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 04:50:31,436 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:31,436 INFO L82 PathProgramCache]: Analyzing trace with hash 484495422, now seen corresponding path program 1 times [2020-10-14 04:50:31,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:31,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865545094] [2020-10-14 04:50:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:31,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:31,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:31,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:31,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:31,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:32,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:32,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:50:32,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:50:32,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-14 04:50:32,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:32,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:50:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:32,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 04:50:32,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:32,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:32,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:32,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-14 04:50:32,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865545094] [2020-10-14 04:50:32,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:32,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:32,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14721361] [2020-10-14 04:50:32,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:32,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:32,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:32,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:32,488 INFO L87 Difference]: Start difference. First operand 299 states and 344 transitions. Second operand 9 states. [2020-10-14 04:50:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:32,848 INFO L93 Difference]: Finished difference Result 406 states and 462 transitions. [2020-10-14 04:50:32,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:50:32,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2020-10-14 04:50:32,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:32,850 INFO L225 Difference]: With dead ends: 406 [2020-10-14 04:50:32,850 INFO L226 Difference]: Without dead ends: 374 [2020-10-14 04:50:32,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:50:32,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-10-14 04:50:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 311. [2020-10-14 04:50:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-10-14 04:50:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 352 transitions. [2020-10-14 04:50:32,881 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 352 transitions. Word has length 48 [2020-10-14 04:50:32,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:32,881 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 352 transitions. [2020-10-14 04:50:32,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:32,881 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 352 transitions. [2020-10-14 04:50:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:50:32,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:32,882 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:32,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 04:50:32,883 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:32,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:32,883 INFO L82 PathProgramCache]: Analyzing trace with hash 967827270, now seen corresponding path program 1 times [2020-10-14 04:50:32,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:32,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082879321] [2020-10-14 04:50:32,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:32,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:32,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:33,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:33,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:33,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:50:33,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:33,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-14 04:50:33,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:33,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:33,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:50:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 04:50:33,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:33,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:33,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:33,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:33,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:33,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:33,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:33,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:33,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:33,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:33,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082879321] [2020-10-14 04:50:33,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:33,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:33,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446795184] [2020-10-14 04:50:33,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:33,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:33,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:33,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:33,557 INFO L87 Difference]: Start difference. First operand 311 states and 352 transitions. Second operand 11 states. [2020-10-14 04:50:34,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:34,715 INFO L93 Difference]: Finished difference Result 452 states and 506 transitions. [2020-10-14 04:50:34,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:50:34,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-10-14 04:50:34,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:34,718 INFO L225 Difference]: With dead ends: 452 [2020-10-14 04:50:34,718 INFO L226 Difference]: Without dead ends: 450 [2020-10-14 04:50:34,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:50:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-14 04:50:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 317. [2020-10-14 04:50:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-14 04:50:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 358 transitions. [2020-10-14 04:50:34,747 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 358 transitions. Word has length 48 [2020-10-14 04:50:34,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:34,747 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 358 transitions. [2020-10-14 04:50:34,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:34,747 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 358 transitions. [2020-10-14 04:50:34,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 04:50:34,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:34,748 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, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:34,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 04:50:34,749 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:34,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1636282852, now seen corresponding path program 2 times [2020-10-14 04:50:34,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:34,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361859751] [2020-10-14 04:50:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:34,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:34,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:34,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:34,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 04:50:34,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:35,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:35,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:35,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:35,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:35,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:35,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:35,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:35,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:35,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:35,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:35,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:35,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361859751] [2020-10-14 04:50:35,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:35,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:35,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405580916] [2020-10-14 04:50:35,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:35,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:35,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:35,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:35,088 INFO L87 Difference]: Start difference. First operand 317 states and 358 transitions. Second operand 10 states. [2020-10-14 04:50:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:35,626 INFO L93 Difference]: Finished difference Result 463 states and 518 transitions. [2020-10-14 04:50:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:50:35,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-14 04:50:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:35,629 INFO L225 Difference]: With dead ends: 463 [2020-10-14 04:50:35,629 INFO L226 Difference]: Without dead ends: 395 [2020-10-14 04:50:35,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:35,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-14 04:50:35,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 356. [2020-10-14 04:50:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-10-14 04:50:35,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 397 transitions. [2020-10-14 04:50:35,663 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 397 transitions. Word has length 50 [2020-10-14 04:50:35,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:35,664 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 397 transitions. [2020-10-14 04:50:35,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:35,664 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 397 transitions. [2020-10-14 04:50:35,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 04:50:35,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:35,665 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, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:35,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 04:50:35,665 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:35,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:35,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2087171740, now seen corresponding path program 2 times [2020-10-14 04:50:35,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:35,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756936963] [2020-10-14 04:50:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:35,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:35,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:35,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:36,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 04:50:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:36,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:36,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:36,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:36,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:36,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:36,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:36,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:36,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:36,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:36,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756936963] [2020-10-14 04:50:36,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:36,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:36,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579297538] [2020-10-14 04:50:36,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:36,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:36,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:36,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:36,249 INFO L87 Difference]: Start difference. First operand 356 states and 397 transitions. Second operand 10 states. [2020-10-14 04:50:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:36,743 INFO L93 Difference]: Finished difference Result 479 states and 534 transitions. [2020-10-14 04:50:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:50:36,743 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-14 04:50:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:36,746 INFO L225 Difference]: With dead ends: 479 [2020-10-14 04:50:36,746 INFO L226 Difference]: Without dead ends: 425 [2020-10-14 04:50:36,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:50:36,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-10-14 04:50:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 370. [2020-10-14 04:50:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-14 04:50:36,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 411 transitions. [2020-10-14 04:50:36,783 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 411 transitions. Word has length 50 [2020-10-14 04:50:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:36,783 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 411 transitions. [2020-10-14 04:50:36,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 411 transitions. [2020-10-14 04:50:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 04:50:36,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:36,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:36,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 04:50:36,785 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:36,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:36,785 INFO L82 PathProgramCache]: Analyzing trace with hash 212542541, now seen corresponding path program 2 times [2020-10-14 04:50:36,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:36,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421742689] [2020-10-14 04:50:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:36,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:36,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:37,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 936 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 04:50:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:37,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:37,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:37,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:37,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:37,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:37,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:37,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 04:50:37,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421742689] [2020-10-14 04:50:37,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:37,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:37,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513953770] [2020-10-14 04:50:37,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:37,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:37,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:37,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:37,888 INFO L87 Difference]: Start difference. First operand 370 states and 411 transitions. Second operand 10 states. [2020-10-14 04:50:38,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:38,593 INFO L93 Difference]: Finished difference Result 437 states and 483 transitions. [2020-10-14 04:50:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 04:50:38,594 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-10-14 04:50:38,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:38,596 INFO L225 Difference]: With dead ends: 437 [2020-10-14 04:50:38,596 INFO L226 Difference]: Without dead ends: 435 [2020-10-14 04:50:38,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:50:38,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-14 04:50:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 390. [2020-10-14 04:50:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-10-14 04:50:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 435 transitions. [2020-10-14 04:50:38,632 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 435 transitions. Word has length 53 [2020-10-14 04:50:38,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:38,632 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 435 transitions. [2020-10-14 04:50:38,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 435 transitions. [2020-10-14 04:50:38,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 04:50:38,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:38,634 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:38,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 04:50:38,634 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:38,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:38,635 INFO L82 PathProgramCache]: Analyzing trace with hash 327610008, now seen corresponding path program 2 times [2020-10-14 04:50:38,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:38,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767227931] [2020-10-14 04:50:38,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:38,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:38,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:38,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:38,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:38,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:39,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:39,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 04:50:39,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:50:39,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-14 04:50:39,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:39,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:39,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 04:50:39,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:39,563 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2020-10-14 04:50:39,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:39,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:39,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:39,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:39,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:39,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:50:39,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:39,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:39,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:39,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 04:50:39,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767227931] [2020-10-14 04:50:39,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:39,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:50:39,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626663554] [2020-10-14 04:50:39,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:50:39,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:39,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:50:39,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:50:39,755 INFO L87 Difference]: Start difference. First operand 390 states and 435 transitions. Second operand 9 states. [2020-10-14 04:50:40,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:40,109 INFO L93 Difference]: Finished difference Result 435 states and 482 transitions. [2020-10-14 04:50:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:50:40,110 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-10-14 04:50:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:40,112 INFO L225 Difference]: With dead ends: 435 [2020-10-14 04:50:40,112 INFO L226 Difference]: Without dead ends: 394 [2020-10-14 04:50:40,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-14 04:50:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 385. [2020-10-14 04:50:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-14 04:50:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 429 transitions. [2020-10-14 04:50:40,150 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 429 transitions. Word has length 56 [2020-10-14 04:50:40,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:40,152 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 429 transitions. [2020-10-14 04:50:40,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:50:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 429 transitions. [2020-10-14 04:50:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 04:50:40,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:40,155 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:40,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 04:50:40,156 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:40,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:40,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1077246238, now seen corresponding path program 1 times [2020-10-14 04:50:40,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:40,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218981563] [2020-10-14 04:50:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:40,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:40,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:40,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:40,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:40,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:41,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:41,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:42,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1844 [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:42,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:42,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 04:50:42,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:42,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:42,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:42,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:42,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:42,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:42,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:42,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 04:50:42,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218981563] [2020-10-14 04:50:42,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:42,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:42,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915980797] [2020-10-14 04:50:42,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:42,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:42,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:42,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:42,194 INFO L87 Difference]: Start difference. First operand 385 states and 429 transitions. Second operand 10 states. [2020-10-14 04:50:42,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:42,923 INFO L93 Difference]: Finished difference Result 414 states and 456 transitions. [2020-10-14 04:50:42,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 04:50:42,923 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 56 [2020-10-14 04:50:42,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:42,924 INFO L225 Difference]: With dead ends: 414 [2020-10-14 04:50:42,924 INFO L226 Difference]: Without dead ends: 372 [2020-10-14 04:50:42,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:50:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-14 04:50:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 335. [2020-10-14 04:50:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-14 04:50:42,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 374 transitions. [2020-10-14 04:50:42,955 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 374 transitions. Word has length 56 [2020-10-14 04:50:42,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:42,955 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 374 transitions. [2020-10-14 04:50:42,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:42,956 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 374 transitions. [2020-10-14 04:50:42,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 04:50:42,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:42,957 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, 1, 1, 1, 1, 1] [2020-10-14 04:50:42,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-14 04:50:42,957 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:42,958 INFO L82 PathProgramCache]: Analyzing trace with hash -550383868, now seen corresponding path program 1 times [2020-10-14 04:50:42,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:42,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202936819] [2020-10-14 04:50:42,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:42,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:43,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 04:50:43,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:50:43,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-14 04:50:43,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:43,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:50:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:43,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 04:50:43,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:44,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:44,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:44,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:44,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:44,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202936819] [2020-10-14 04:50:44,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:44,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:50:44,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848922927] [2020-10-14 04:50:44,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:50:44,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:44,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:50:44,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:50:44,279 INFO L87 Difference]: Start difference. First operand 335 states and 374 transitions. Second operand 11 states. [2020-10-14 04:50:45,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:45,453 INFO L93 Difference]: Finished difference Result 551 states and 617 transitions. [2020-10-14 04:50:45,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:50:45,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-10-14 04:50:45,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:45,456 INFO L225 Difference]: With dead ends: 551 [2020-10-14 04:50:45,456 INFO L226 Difference]: Without dead ends: 497 [2020-10-14 04:50:45,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:50:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-10-14 04:50:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 400. [2020-10-14 04:50:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-14 04:50:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 447 transitions. [2020-10-14 04:50:45,494 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 447 transitions. Word has length 57 [2020-10-14 04:50:45,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:45,495 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 447 transitions. [2020-10-14 04:50:45,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:50:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 447 transitions. [2020-10-14 04:50:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 04:50:45,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:45,496 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, 1, 1, 1, 1, 1] [2020-10-14 04:50:45,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-14 04:50:45,497 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash 906137348, now seen corresponding path program 2 times [2020-10-14 04:50:45,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:45,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34914244] [2020-10-14 04:50:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:45,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:45,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:45,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:46,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:46,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 04:50:46,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 04:50:46,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:46,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:46,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:46,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:46,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34914244] [2020-10-14 04:50:46,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:46,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:50:46,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152333039] [2020-10-14 04:50:46,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:50:46,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:46,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:50:46,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:46,706 INFO L87 Difference]: Start difference. First operand 400 states and 447 transitions. Second operand 12 states. [2020-10-14 04:50:47,305 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-14 04:50:48,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:48,294 INFO L93 Difference]: Finished difference Result 613 states and 683 transitions. [2020-10-14 04:50:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:50:48,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-10-14 04:50:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:48,297 INFO L225 Difference]: With dead ends: 613 [2020-10-14 04:50:48,297 INFO L226 Difference]: Without dead ends: 611 [2020-10-14 04:50:48,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:50:48,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-10-14 04:50:48,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 465. [2020-10-14 04:50:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-10-14 04:50:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 520 transitions. [2020-10-14 04:50:48,342 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 520 transitions. Word has length 57 [2020-10-14 04:50:48,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:48,342 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 520 transitions. [2020-10-14 04:50:48,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:50:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 520 transitions. [2020-10-14 04:50:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 04:50:48,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:48,344 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:48,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-14 04:50:48,344 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:48,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:48,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1322002812, now seen corresponding path program 3 times [2020-10-14 04:50:48,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:48,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099189827] [2020-10-14 04:50:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:48,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:48,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:48,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:49,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 04:50:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:49,704 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2020-10-14 04:50:49,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:49,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:49,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:49,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:49,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:49,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:49,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:49,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:49,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:49,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099189827] [2020-10-14 04:50:49,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:49,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:50:49,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738134699] [2020-10-14 04:50:49,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:50:49,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:49,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:50:49,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:50:49,915 INFO L87 Difference]: Start difference. First operand 465 states and 520 transitions. Second operand 12 states. [2020-10-14 04:50:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:51,304 INFO L93 Difference]: Finished difference Result 678 states and 754 transitions. [2020-10-14 04:50:51,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:50:51,305 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-10-14 04:50:51,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:51,308 INFO L225 Difference]: With dead ends: 678 [2020-10-14 04:50:51,308 INFO L226 Difference]: Without dead ends: 676 [2020-10-14 04:50:51,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:50:51,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-10-14 04:50:51,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 469. [2020-10-14 04:50:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-10-14 04:50:51,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 524 transitions. [2020-10-14 04:50:51,348 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 524 transitions. Word has length 57 [2020-10-14 04:50:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:51,348 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 524 transitions. [2020-10-14 04:50:51,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:50:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 524 transitions. [2020-10-14 04:50:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 04:50:51,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:51,350 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:51,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-14 04:50:51,350 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:51,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:51,351 INFO L82 PathProgramCache]: Analyzing trace with hash 872391149, now seen corresponding path program 1 times [2020-10-14 04:50:51,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:51,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156092226] [2020-10-14 04:50:51,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:51,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:51,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:52,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:52,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 04:50:52,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:52,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-10-14 04:50:52,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:52,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:50:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 04:50:52,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:52,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:52,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:52,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:52,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:52,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:52,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:52,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:52,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:52,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:52,500 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:52,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156092226] [2020-10-14 04:50:52,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:52,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:50:52,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669314771] [2020-10-14 04:50:52,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:50:52,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:52,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:50:52,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:50:52,502 INFO L87 Difference]: Start difference. First operand 469 states and 524 transitions. Second operand 13 states. [2020-10-14 04:50:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:53,796 INFO L93 Difference]: Finished difference Result 684 states and 758 transitions. [2020-10-14 04:50:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:50:53,797 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-14 04:50:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:53,800 INFO L225 Difference]: With dead ends: 684 [2020-10-14 04:50:53,800 INFO L226 Difference]: Without dead ends: 682 [2020-10-14 04:50:53,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:50:53,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2020-10-14 04:50:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 524. [2020-10-14 04:50:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-14 04:50:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 583 transitions. [2020-10-14 04:50:53,837 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 583 transitions. Word has length 60 [2020-10-14 04:50:53,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:53,837 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 583 transitions. [2020-10-14 04:50:53,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:50:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 583 transitions. [2020-10-14 04:50:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 04:50:53,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:53,839 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:53,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-14 04:50:53,839 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:53,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1068444269, now seen corresponding path program 2 times [2020-10-14 04:50:53,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:53,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294830495] [2020-10-14 04:50:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:54,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:54,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:55,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:55,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 04:50:55,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1233 [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 04:50:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:55,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:55,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:55,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:55,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:55,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:55,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:55,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:55,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:50:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:50:55,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294830495] [2020-10-14 04:50:55,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:55,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:50:55,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982088675] [2020-10-14 04:50:55,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:50:55,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:55,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:50:55,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:50:55,467 INFO L87 Difference]: Start difference. First operand 524 states and 583 transitions. Second operand 13 states. [2020-10-14 04:50:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:56,630 INFO L93 Difference]: Finished difference Result 761 states and 844 transitions. [2020-10-14 04:50:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:50:56,631 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-14 04:50:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:56,634 INFO L225 Difference]: With dead ends: 761 [2020-10-14 04:50:56,634 INFO L226 Difference]: Without dead ends: 759 [2020-10-14 04:50:56,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:50:56,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-10-14 04:50:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 544. [2020-10-14 04:50:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-14 04:50:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 609 transitions. [2020-10-14 04:50:56,688 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 609 transitions. Word has length 60 [2020-10-14 04:50:56,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:56,689 INFO L479 AbstractCegarLoop]: Abstraction has 544 states and 609 transitions. [2020-10-14 04:50:56,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:50:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 609 transitions. [2020-10-14 04:50:56,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 04:50:56,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:56,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:56,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-14 04:50:56,691 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:56,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:56,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2119530068, now seen corresponding path program 1 times [2020-10-14 04:50:56,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:56,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090514231] [2020-10-14 04:50:56,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:56,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:56,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:56,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:56,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:58,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:58,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 04:50:58,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:50:58,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1866 [2020-10-14 04:50:58,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:58,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:50:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:50:58,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:50:58,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:50:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:58,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:50:58,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:50:58,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:50:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:50:58,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:50:58,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:50:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:50:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:50:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:50:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:50:58,844 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:50:58,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090514231] [2020-10-14 04:50:58,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:50:58,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:50:58,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199580927] [2020-10-14 04:50:58,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:50:58,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:50:58,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:50:58,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:50:58,846 INFO L87 Difference]: Start difference. First operand 544 states and 609 transitions. Second operand 10 states. [2020-10-14 04:50:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:50:59,592 INFO L93 Difference]: Finished difference Result 581 states and 646 transitions. [2020-10-14 04:50:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:50:59,592 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-14 04:50:59,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:50:59,594 INFO L225 Difference]: With dead ends: 581 [2020-10-14 04:50:59,595 INFO L226 Difference]: Without dead ends: 579 [2020-10-14 04:50:59,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:50:59,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-10-14 04:50:59,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 555. [2020-10-14 04:50:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-14 04:50:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 620 transitions. [2020-10-14 04:50:59,636 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 620 transitions. Word has length 61 [2020-10-14 04:50:59,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:50:59,636 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 620 transitions. [2020-10-14 04:50:59,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:50:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 620 transitions. [2020-10-14 04:50:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-14 04:50:59,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:50:59,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:50:59,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-14 04:50:59,638 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:50:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:50:59,639 INFO L82 PathProgramCache]: Analyzing trace with hash -329461460, now seen corresponding path program 1 times [2020-10-14 04:50:59,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:50:59,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112273978] [2020-10-14 04:50:59,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:50:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:50:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:59,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:50:59,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:00,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:00,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:04,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:04,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 04:51:04,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:51:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:04,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:04,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:04,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:04,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:04,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:04,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:04,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:04,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:04,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:04,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:04,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:51:05,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112273978] [2020-10-14 04:51:05,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:05,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:51:05,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273340984] [2020-10-14 04:51:05,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:51:05,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:05,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:51:05,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:51:05,001 INFO L87 Difference]: Start difference. First operand 555 states and 620 transitions. Second operand 10 states. [2020-10-14 04:51:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:05,781 INFO L93 Difference]: Finished difference Result 613 states and 683 transitions. [2020-10-14 04:51:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:51:05,781 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2020-10-14 04:51:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:05,784 INFO L225 Difference]: With dead ends: 613 [2020-10-14 04:51:05,785 INFO L226 Difference]: Without dead ends: 611 [2020-10-14 04:51:05,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:51:05,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-10-14 04:51:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 550. [2020-10-14 04:51:05,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-14 04:51:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 614 transitions. [2020-10-14 04:51:05,836 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 614 transitions. Word has length 61 [2020-10-14 04:51:05,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:05,836 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 614 transitions. [2020-10-14 04:51:05,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:51:05,837 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 614 transitions. [2020-10-14 04:51:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 04:51:05,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:05,838 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:05,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-14 04:51:05,839 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 909820675, now seen corresponding path program 3 times [2020-10-14 04:51:05,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:05,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763872067] [2020-10-14 04:51:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:05,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:06,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:06,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:06,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:06,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:06,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 04:51:06,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:06,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:06,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:06,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:06,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:06,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:06,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:06,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763872067] [2020-10-14 04:51:06,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:06,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:51:06,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084318895] [2020-10-14 04:51:06,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:51:06,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:06,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:51:06,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:51:06,737 INFO L87 Difference]: Start difference. First operand 550 states and 614 transitions. Second operand 12 states. [2020-10-14 04:51:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:07,840 INFO L93 Difference]: Finished difference Result 820 states and 921 transitions. [2020-10-14 04:51:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:51:07,841 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2020-10-14 04:51:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:07,843 INFO L225 Difference]: With dead ends: 820 [2020-10-14 04:51:07,843 INFO L226 Difference]: Without dead ends: 714 [2020-10-14 04:51:07,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:51:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-10-14 04:51:07,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 629. [2020-10-14 04:51:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-10-14 04:51:07,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 701 transitions. [2020-10-14 04:51:07,895 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 701 transitions. Word has length 62 [2020-10-14 04:51:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:07,895 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 701 transitions. [2020-10-14 04:51:07,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:51:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 701 transitions. [2020-10-14 04:51:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-14 04:51:07,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:07,897 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:07,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-14 04:51:07,897 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:07,898 INFO L82 PathProgramCache]: Analyzing trace with hash 338307971, now seen corresponding path program 3 times [2020-10-14 04:51:07,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:07,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512948595] [2020-10-14 04:51:07,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:07,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:07,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:08,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:08,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 04:51:08,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 04:51:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:08,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:08,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:08,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:08,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:08,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:08,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:08,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:08,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:08,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:08,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512948595] [2020-10-14 04:51:08,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:08,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:51:08,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564553087] [2020-10-14 04:51:08,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:51:08,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:08,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:51:08,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:51:08,903 INFO L87 Difference]: Start difference. First operand 629 states and 701 transitions. Second operand 13 states. [2020-10-14 04:51:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:10,778 INFO L93 Difference]: Finished difference Result 864 states and 956 transitions. [2020-10-14 04:51:10,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 04:51:10,778 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2020-10-14 04:51:10,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:10,781 INFO L225 Difference]: With dead ends: 864 [2020-10-14 04:51:10,781 INFO L226 Difference]: Without dead ends: 862 [2020-10-14 04:51:10,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:51:10,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2020-10-14 04:51:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 690. [2020-10-14 04:51:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-14 04:51:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 766 transitions. [2020-10-14 04:51:10,833 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 766 transitions. Word has length 62 [2020-10-14 04:51:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:10,834 INFO L479 AbstractCegarLoop]: Abstraction has 690 states and 766 transitions. [2020-10-14 04:51:10,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:51:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 766 transitions. [2020-10-14 04:51:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:51:10,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:10,836 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, 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 04:51:10,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-14 04:51:10,836 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:10,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:10,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1693131615, now seen corresponding path program 1 times [2020-10-14 04:51:10,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:10,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306025280] [2020-10-14 04:51:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:10,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:10,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:11,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:11,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1247 [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:12,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:51:12,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:12,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 04:51:12,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:12,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:12,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:12,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:51:12,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306025280] [2020-10-14 04:51:12,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:12,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:51:12,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406515718] [2020-10-14 04:51:12,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:51:12,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:12,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:51:12,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:51:12,365 INFO L87 Difference]: Start difference. First operand 690 states and 766 transitions. Second operand 10 states. [2020-10-14 04:51:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:12,982 INFO L93 Difference]: Finished difference Result 717 states and 792 transitions. [2020-10-14 04:51:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:51:12,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-10-14 04:51:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:12,986 INFO L225 Difference]: With dead ends: 717 [2020-10-14 04:51:12,986 INFO L226 Difference]: Without dead ends: 681 [2020-10-14 04:51:12,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:51:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-10-14 04:51:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 670. [2020-10-14 04:51:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-10-14 04:51:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 745 transitions. [2020-10-14 04:51:13,035 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 745 transitions. Word has length 64 [2020-10-14 04:51:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:13,036 INFO L479 AbstractCegarLoop]: Abstraction has 670 states and 745 transitions. [2020-10-14 04:51:13,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:51:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 745 transitions. [2020-10-14 04:51:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:51:13,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:13,037 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, 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 04:51:13,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-14 04:51:13,038 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:13,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:13,038 INFO L82 PathProgramCache]: Analyzing trace with hash -981881889, now seen corresponding path program 1 times [2020-10-14 04:51:13,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:13,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447988495] [2020-10-14 04:51:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:13,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:14,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:15,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:18,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:51:18,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-14 04:51:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 04:51:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:18,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:51:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 04:51:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:18,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:18,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:18,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:18,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:18,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:18,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:18,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:18,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:18,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:51:18,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447988495] [2020-10-14 04:51:18,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:18,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:51:18,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027542128] [2020-10-14 04:51:18,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:51:18,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:18,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:51:18,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:51:18,237 INFO L87 Difference]: Start difference. First operand 670 states and 745 transitions. Second operand 10 states. [2020-10-14 04:51:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:18,759 INFO L93 Difference]: Finished difference Result 688 states and 761 transitions. [2020-10-14 04:51:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:51:18,760 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-10-14 04:51:18,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:18,764 INFO L225 Difference]: With dead ends: 688 [2020-10-14 04:51:18,764 INFO L226 Difference]: Without dead ends: 641 [2020-10-14 04:51:18,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:51:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-10-14 04:51:18,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 628. [2020-10-14 04:51:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-10-14 04:51:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 700 transitions. [2020-10-14 04:51:18,806 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 700 transitions. Word has length 64 [2020-10-14 04:51:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:18,806 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 700 transitions. [2020-10-14 04:51:18,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:51:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 700 transitions. [2020-10-14 04:51:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 04:51:18,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:18,808 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:18,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-14 04:51:18,808 INFO L427 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:18,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:18,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2060268038, now seen corresponding path program 1 times [2020-10-14 04:51:18,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:18,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179518825] [2020-10-14 04:51:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:18,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:18,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:19,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:20,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:20,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:51:20,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-14 04:51:20,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2132 [2020-10-14 04:51:20,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:20,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:20,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:51:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:20,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 04:51:20,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:21,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:21,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:21,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:21,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:21,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:21,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:51:21,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:21,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:51:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 04:51:21,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179518825] [2020-10-14 04:51:21,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:21,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:51:21,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687912596] [2020-10-14 04:51:21,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:51:21,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:21,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:51:21,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:51:21,468 INFO L87 Difference]: Start difference. First operand 628 states and 700 transitions. Second operand 10 states. [2020-10-14 04:51:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:22,589 INFO L93 Difference]: Finished difference Result 768 states and 856 transitions. [2020-10-14 04:51:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:51:22,590 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-14 04:51:22,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:22,592 INFO L225 Difference]: With dead ends: 768 [2020-10-14 04:51:22,593 INFO L226 Difference]: Without dead ends: 752 [2020-10-14 04:51:22,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:51:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2020-10-14 04:51:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 650. [2020-10-14 04:51:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-10-14 04:51:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 726 transitions. [2020-10-14 04:51:22,640 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 726 transitions. Word has length 65 [2020-10-14 04:51:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:22,640 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 726 transitions. [2020-10-14 04:51:22,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:51:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 726 transitions. [2020-10-14 04:51:22,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 04:51:22,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:22,641 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:22,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-14 04:51:22,642 INFO L427 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:22,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:22,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1751367410, now seen corresponding path program 2 times [2020-10-14 04:51:22,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:22,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886177591] [2020-10-14 04:51:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:22,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:22,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:23,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 04:51:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:23,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:23,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:23,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:23,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:23,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:23,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:23,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:23,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886177591] [2020-10-14 04:51:23,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:23,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:51:23,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183064062] [2020-10-14 04:51:23,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:51:23,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:23,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:51:23,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:51:23,687 INFO L87 Difference]: Start difference. First operand 650 states and 726 transitions. Second operand 13 states. [2020-10-14 04:51:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:25,609 INFO L93 Difference]: Finished difference Result 853 states and 955 transitions. [2020-10-14 04:51:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 04:51:25,610 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2020-10-14 04:51:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:25,613 INFO L225 Difference]: With dead ends: 853 [2020-10-14 04:51:25,613 INFO L226 Difference]: Without dead ends: 851 [2020-10-14 04:51:25,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2020-10-14 04:51:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-10-14 04:51:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 656. [2020-10-14 04:51:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-14 04:51:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 732 transitions. [2020-10-14 04:51:25,675 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 732 transitions. Word has length 65 [2020-10-14 04:51:25,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:25,675 INFO L479 AbstractCegarLoop]: Abstraction has 656 states and 732 transitions. [2020-10-14 04:51:25,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:51:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 732 transitions. [2020-10-14 04:51:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 04:51:25,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:25,677 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:25,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-14 04:51:25,677 INFO L427 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:25,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:25,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1423831558, now seen corresponding path program 2 times [2020-10-14 04:51:25,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:25,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622126109] [2020-10-14 04:51:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:25,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:25,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:25,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:26,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:26,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:26,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:27,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:27,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:27,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:28,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:28,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:29,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:29,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:30,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 04:51:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:30,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:30,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:30,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:30,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 04:51:30,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622126109] [2020-10-14 04:51:30,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:30,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:51:30,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131698168] [2020-10-14 04:51:30,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:51:30,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:30,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:51:30,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:51:30,792 INFO L87 Difference]: Start difference. First operand 656 states and 732 transitions. Second operand 9 states. [2020-10-14 04:51:31,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:31,311 INFO L93 Difference]: Finished difference Result 809 states and 904 transitions. [2020-10-14 04:51:31,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:51:31,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-14 04:51:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:31,315 INFO L225 Difference]: With dead ends: 809 [2020-10-14 04:51:31,315 INFO L226 Difference]: Without dead ends: 793 [2020-10-14 04:51:31,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:51:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-10-14 04:51:31,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 658. [2020-10-14 04:51:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-14 04:51:31,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 736 transitions. [2020-10-14 04:51:31,374 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 736 transitions. Word has length 65 [2020-10-14 04:51:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:31,375 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 736 transitions. [2020-10-14 04:51:31,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:51:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 736 transitions. [2020-10-14 04:51:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 04:51:31,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:31,376 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:31,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-14 04:51:31,376 INFO L427 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:31,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:31,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1055186660, now seen corresponding path program 4 times [2020-10-14 04:51:31,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:31,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741804470] [2020-10-14 04:51:31,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:31,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:31,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:31,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:51:31,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:51:31,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-14 04:51:31,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:31,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:51:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:31,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:51:31,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:32,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:32,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:32,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:32,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:32,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:32,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:32,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741804470] [2020-10-14 04:51:32,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:32,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:51:32,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752848407] [2020-10-14 04:51:32,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:51:32,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:32,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:51:32,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:51:32,138 INFO L87 Difference]: Start difference. First operand 658 states and 736 transitions. Second operand 12 states. [2020-10-14 04:51:33,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:33,080 INFO L93 Difference]: Finished difference Result 829 states and 930 transitions. [2020-10-14 04:51:33,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:51:33,080 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-10-14 04:51:33,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:33,083 INFO L225 Difference]: With dead ends: 829 [2020-10-14 04:51:33,083 INFO L226 Difference]: Without dead ends: 720 [2020-10-14 04:51:33,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:51:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-14 04:51:33,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 678. [2020-10-14 04:51:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-10-14 04:51:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 756 transitions. [2020-10-14 04:51:33,134 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 756 transitions. Word has length 67 [2020-10-14 04:51:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:33,134 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 756 transitions. [2020-10-14 04:51:33,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:51:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 756 transitions. [2020-10-14 04:51:33,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 04:51:33,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:33,135 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:33,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-14 04:51:33,135 INFO L427 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:33,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:33,135 INFO L82 PathProgramCache]: Analyzing trace with hash 281200228, now seen corresponding path program 4 times [2020-10-14 04:51:33,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:33,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491567027] [2020-10-14 04:51:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:33,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:33,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:33,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:33,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:33,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1519 [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:51:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 04:51:34,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:34,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:34,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:34,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:34,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:34,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:34,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:34,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:34,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491567027] [2020-10-14 04:51:34,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:34,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:51:34,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676831869] [2020-10-14 04:51:34,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:51:34,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:34,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:51:34,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:51:34,986 INFO L87 Difference]: Start difference. First operand 678 states and 756 transitions. Second operand 12 states. [2020-10-14 04:51:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:35,942 INFO L93 Difference]: Finished difference Result 856 states and 957 transitions. [2020-10-14 04:51:35,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:51:35,943 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-10-14 04:51:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:35,945 INFO L225 Difference]: With dead ends: 856 [2020-10-14 04:51:35,945 INFO L226 Difference]: Without dead ends: 747 [2020-10-14 04:51:35,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:51:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-10-14 04:51:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 692. [2020-10-14 04:51:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 04:51:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 770 transitions. [2020-10-14 04:51:36,009 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 770 transitions. Word has length 67 [2020-10-14 04:51:36,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:36,010 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 770 transitions. [2020-10-14 04:51:36,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:51:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 770 transitions. [2020-10-14 04:51:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 04:51:36,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:36,011 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:36,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-10-14 04:51:36,012 INFO L427 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:36,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1617025599, now seen corresponding path program 3 times [2020-10-14 04:51:36,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:36,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176521898] [2020-10-14 04:51:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:36,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:36,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:36,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:37,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1955 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 04:51:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:38,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:38,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:38,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:38,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:38,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:38,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 04:51:38,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176521898] [2020-10-14 04:51:38,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:38,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:51:38,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871541450] [2020-10-14 04:51:38,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:51:38,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:38,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:51:38,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:51:38,085 INFO L87 Difference]: Start difference. First operand 692 states and 770 transitions. Second operand 9 states. [2020-10-14 04:51:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:38,575 INFO L93 Difference]: Finished difference Result 864 states and 962 transitions. [2020-10-14 04:51:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:51:38,575 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-14 04:51:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:38,578 INFO L225 Difference]: With dead ends: 864 [2020-10-14 04:51:38,578 INFO L226 Difference]: Without dead ends: 828 [2020-10-14 04:51:38,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:51:38,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-10-14 04:51:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 755. [2020-10-14 04:51:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-10-14 04:51:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 837 transitions. [2020-10-14 04:51:38,634 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 837 transitions. Word has length 68 [2020-10-14 04:51:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:38,635 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 837 transitions. [2020-10-14 04:51:38,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:51:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 837 transitions. [2020-10-14 04:51:38,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 04:51:38,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:38,636 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:38,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-10-14 04:51:38,636 INFO L427 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:38,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:38,636 INFO L82 PathProgramCache]: Analyzing trace with hash 766793789, now seen corresponding path program 5 times [2020-10-14 04:51:38,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:38,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46257176] [2020-10-14 04:51:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:38,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:38,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:38,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:39,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:39,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:40,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:40,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:51:40,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:51:40,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1471 [2020-10-14 04:51:40,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:40,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:51:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:40,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 04:51:40,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:40,570 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-14 04:51:40,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:40,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:40,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:40,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:40,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:40,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:40,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:40,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:40,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:40,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:40,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:40,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46257176] [2020-10-14 04:51:40,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:40,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:51:40,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707770504] [2020-10-14 04:51:40,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:51:40,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:40,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:51:40,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:51:40,793 INFO L87 Difference]: Start difference. First operand 755 states and 837 transitions. Second operand 12 states. [2020-10-14 04:51:41,334 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2020-10-14 04:51:41,515 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2020-10-14 04:51:42,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:42,309 INFO L93 Difference]: Finished difference Result 1041 states and 1156 transitions. [2020-10-14 04:51:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:51:42,310 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-10-14 04:51:42,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:42,313 INFO L225 Difference]: With dead ends: 1041 [2020-10-14 04:51:42,313 INFO L226 Difference]: Without dead ends: 925 [2020-10-14 04:51:42,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:51:42,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-10-14 04:51:42,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 759. [2020-10-14 04:51:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-14 04:51:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 841 transitions. [2020-10-14 04:51:42,371 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 841 transitions. Word has length 69 [2020-10-14 04:51:42,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:42,371 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 841 transitions. [2020-10-14 04:51:42,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:51:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 841 transitions. [2020-10-14 04:51:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 04:51:42,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:42,372 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:42,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-10-14 04:51:42,372 INFO L427 AbstractCegarLoop]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1748359229, now seen corresponding path program 6 times [2020-10-14 04:51:42,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:42,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132930497] [2020-10-14 04:51:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:42,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:42,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:42,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:43,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:43,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1117 [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:51:43,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 04:51:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:43,889 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-10-14 04:51:44,035 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2020-10-14 04:51:44,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:44,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:44,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:44,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:44,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:44,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:44,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132930497] [2020-10-14 04:51:44,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:44,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:51:44,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367292901] [2020-10-14 04:51:44,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:51:44,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:44,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:51:44,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:51:44,353 INFO L87 Difference]: Start difference. First operand 759 states and 841 transitions. Second operand 13 states. [2020-10-14 04:51:44,924 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-14 04:51:45,213 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-14 04:51:46,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:46,062 INFO L93 Difference]: Finished difference Result 1015 states and 1127 transitions. [2020-10-14 04:51:46,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:51:46,062 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-14 04:51:46,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:46,065 INFO L225 Difference]: With dead ends: 1015 [2020-10-14 04:51:46,065 INFO L226 Difference]: Without dead ends: 1013 [2020-10-14 04:51:46,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:51:46,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-10-14 04:51:46,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 824. [2020-10-14 04:51:46,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-14 04:51:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 914 transitions. [2020-10-14 04:51:46,127 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 914 transitions. Word has length 69 [2020-10-14 04:51:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:46,128 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 914 transitions. [2020-10-14 04:51:46,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:51:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 914 transitions. [2020-10-14 04:51:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 04:51:46,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:46,129 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:46,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-10-14 04:51:46,130 INFO L427 AbstractCegarLoop]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash -479780931, now seen corresponding path program 7 times [2020-10-14 04:51:46,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:46,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007413210] [2020-10-14 04:51:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:46,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:46,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:47,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:47,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:47,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 04:51:47,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:51:47,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1374 [2020-10-14 04:51:47,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:47,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:47,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:51:47,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:47,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 04:51:47,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:47,906 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-14 04:51:48,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:48,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:48,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:48,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:48,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:48,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:48,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:48,300 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:51:48,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007413210] [2020-10-14 04:51:48,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:48,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:51:48,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076226176] [2020-10-14 04:51:48,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:51:48,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:48,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:51:48,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:51:48,302 INFO L87 Difference]: Start difference. First operand 824 states and 914 transitions. Second operand 13 states. [2020-10-14 04:51:48,748 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 78 [2020-10-14 04:51:49,084 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2020-10-14 04:51:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:49,861 INFO L93 Difference]: Finished difference Result 1019 states and 1131 transitions. [2020-10-14 04:51:49,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:51:49,861 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-14 04:51:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:49,865 INFO L225 Difference]: With dead ends: 1019 [2020-10-14 04:51:49,865 INFO L226 Difference]: Without dead ends: 1017 [2020-10-14 04:51:49,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:51:49,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2020-10-14 04:51:49,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 759. [2020-10-14 04:51:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-14 04:51:49,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 839 transitions. [2020-10-14 04:51:49,924 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 839 transitions. Word has length 69 [2020-10-14 04:51:49,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:49,924 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 839 transitions. [2020-10-14 04:51:49,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:51:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 839 transitions. [2020-10-14 04:51:49,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 04:51:49,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:49,925 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:49,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-10-14 04:51:49,926 INFO L427 AbstractCegarLoop]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:49,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2010789536, now seen corresponding path program 4 times [2020-10-14 04:51:49,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:49,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1225169565] [2020-10-14 04:51:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:49,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:50,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:50,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:50,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:50,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:50,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:51,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:51,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:51,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:51,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:52,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2705 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 04:51:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:52,926 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-10-14 04:51:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:53,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:53,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:53,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 04:51:53,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1225169565] [2020-10-14 04:51:53,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:53,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:51:53,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827636234] [2020-10-14 04:51:53,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:51:53,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:53,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:51:53,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:51:53,138 INFO L87 Difference]: Start difference. First operand 759 states and 839 transitions. Second operand 11 states. [2020-10-14 04:51:53,843 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-10-14 04:51:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:54,550 INFO L93 Difference]: Finished difference Result 978 states and 1079 transitions. [2020-10-14 04:51:54,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 04:51:54,551 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-10-14 04:51:54,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:54,554 INFO L225 Difference]: With dead ends: 978 [2020-10-14 04:51:54,554 INFO L226 Difference]: Without dead ends: 962 [2020-10-14 04:51:54,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:51:54,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2020-10-14 04:51:54,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 816. [2020-10-14 04:51:54,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-10-14 04:51:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 901 transitions. [2020-10-14 04:51:54,644 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 901 transitions. Word has length 73 [2020-10-14 04:51:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:54,644 INFO L479 AbstractCegarLoop]: Abstraction has 816 states and 901 transitions. [2020-10-14 04:51:54,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:51:54,645 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 901 transitions. [2020-10-14 04:51:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-14 04:51:54,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:54,646 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:51:54,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-10-14 04:51:54,646 INFO L427 AbstractCegarLoop]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:54,646 INFO L82 PathProgramCache]: Analyzing trace with hash -220720928, now seen corresponding path program 3 times [2020-10-14 04:51:54,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:54,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182729002] [2020-10-14 04:51:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:54,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:54,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:54,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:54,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:55,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:55,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:55,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:56,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:56,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:56,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:56,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:57,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3197 [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:51:57,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:51:57,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 04:51:57,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:58,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:51:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:58,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:58,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:51:58,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:51:58,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:51:58,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:51:58,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:51:58,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:51:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:51:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:51:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:51:58,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:51:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 04:51:58,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182729002] [2020-10-14 04:51:58,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:51:58,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:51:58,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325801816] [2020-10-14 04:51:58,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:51:58,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:51:58,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:51:58,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:51:58,262 INFO L87 Difference]: Start difference. First operand 816 states and 901 transitions. Second operand 12 states. [2020-10-14 04:51:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:51:59,734 INFO L93 Difference]: Finished difference Result 1015 states and 1115 transitions. [2020-10-14 04:51:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 04:51:59,735 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-10-14 04:51:59,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:51:59,738 INFO L225 Difference]: With dead ends: 1015 [2020-10-14 04:51:59,738 INFO L226 Difference]: Without dead ends: 1013 [2020-10-14 04:51:59,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:51:59,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2020-10-14 04:51:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 884. [2020-10-14 04:51:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-10-14 04:51:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 975 transitions. [2020-10-14 04:51:59,809 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 975 transitions. Word has length 73 [2020-10-14 04:51:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:51:59,809 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 975 transitions. [2020-10-14 04:51:59,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:51:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 975 transitions. [2020-10-14 04:51:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 04:51:59,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:51:59,810 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2020-10-14 04:51:59,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-10-14 04:51:59,810 INFO L427 AbstractCegarLoop]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:51:59,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:51:59,811 INFO L82 PathProgramCache]: Analyzing trace with hash -768993942, now seen corresponding path program 5 times [2020-10-14 04:51:59,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:51:59,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512636203] [2020-10-14 04:51:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:51:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:51:59,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:59,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:51:59,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:00,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:00,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:00,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:52:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:00,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:52:00,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:01,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:01,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:01,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:01,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:01,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512636203] [2020-10-14 04:52:01,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:01,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 04:52:01,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196527526] [2020-10-14 04:52:01,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 04:52:01,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:01,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 04:52:01,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:52:01,423 INFO L87 Difference]: Start difference. First operand 884 states and 975 transitions. Second operand 14 states. [2020-10-14 04:52:02,453 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-14 04:52:03,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:03,579 INFO L93 Difference]: Finished difference Result 1270 states and 1415 transitions. [2020-10-14 04:52:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:52:03,579 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 74 [2020-10-14 04:52:03,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:03,582 INFO L225 Difference]: With dead ends: 1270 [2020-10-14 04:52:03,583 INFO L226 Difference]: Without dead ends: 1161 [2020-10-14 04:52:03,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2020-10-14 04:52:03,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-10-14 04:52:03,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1032. [2020-10-14 04:52:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2020-10-14 04:52:03,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1139 transitions. [2020-10-14 04:52:03,665 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1139 transitions. Word has length 74 [2020-10-14 04:52:03,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:03,666 INFO L479 AbstractCegarLoop]: Abstraction has 1032 states and 1139 transitions. [2020-10-14 04:52:03,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 04:52:03,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1139 transitions. [2020-10-14 04:52:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 04:52:03,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:03,667 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2020-10-14 04:52:03,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-10-14 04:52:03,667 INFO L427 AbstractCegarLoop]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:03,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1340506646, now seen corresponding path program 8 times [2020-10-14 04:52:03,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:03,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327837384] [2020-10-14 04:52:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:03,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:03,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:04,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:04,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:04,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:04,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:04,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1134 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:52:04,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:05,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:05,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:05,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:05,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327837384] [2020-10-14 04:52:05,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:05,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 04:52:05,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466579465] [2020-10-14 04:52:05,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 04:52:05,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:05,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 04:52:05,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:52:05,623 INFO L87 Difference]: Start difference. First operand 1032 states and 1139 transitions. Second operand 14 states. [2020-10-14 04:52:06,114 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-10-14 04:52:06,290 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2020-10-14 04:52:06,567 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-10-14 04:52:06,922 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-10-14 04:52:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:07,856 INFO L93 Difference]: Finished difference Result 1513 states and 1684 transitions. [2020-10-14 04:52:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:52:07,856 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 74 [2020-10-14 04:52:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:07,861 INFO L225 Difference]: With dead ends: 1513 [2020-10-14 04:52:07,861 INFO L226 Difference]: Without dead ends: 1404 [2020-10-14 04:52:07,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:52:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2020-10-14 04:52:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1115. [2020-10-14 04:52:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-10-14 04:52:07,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1234 transitions. [2020-10-14 04:52:07,954 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1234 transitions. Word has length 74 [2020-10-14 04:52:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:07,955 INFO L479 AbstractCegarLoop]: Abstraction has 1115 states and 1234 transitions. [2020-10-14 04:52:07,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 04:52:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1234 transitions. [2020-10-14 04:52:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 04:52:07,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:07,956 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2020-10-14 04:52:07,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-10-14 04:52:07,956 INFO L427 AbstractCegarLoop]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:07,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1111441942, now seen corresponding path program 9 times [2020-10-14 04:52:07,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:07,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842418847] [2020-10-14 04:52:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:08,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:08,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1227 [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:52:09,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:09,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:52:09,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:09,691 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-10-14 04:52:10,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:10,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:10,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:10,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:10,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:10,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:10,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:10,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:10,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:10,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:10,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:10,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842418847] [2020-10-14 04:52:10,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:10,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:52:10,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771116945] [2020-10-14 04:52:10,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:52:10,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:10,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:52:10,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:52:10,098 INFO L87 Difference]: Start difference. First operand 1115 states and 1234 transitions. Second operand 15 states. [2020-10-14 04:52:10,388 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 63 [2020-10-14 04:52:10,649 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2020-10-14 04:52:10,868 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2020-10-14 04:52:11,170 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-10-14 04:52:11,430 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2020-10-14 04:52:11,901 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2020-10-14 04:52:12,296 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-10-14 04:52:13,245 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-14 04:52:13,778 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-14 04:52:14,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:14,013 INFO L93 Difference]: Finished difference Result 1553 states and 1724 transitions. [2020-10-14 04:52:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:52:14,013 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-14 04:52:14,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:14,017 INFO L225 Difference]: With dead ends: 1553 [2020-10-14 04:52:14,017 INFO L226 Difference]: Without dead ends: 1551 [2020-10-14 04:52:14,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 04:52:14,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-10-14 04:52:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1271. [2020-10-14 04:52:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2020-10-14 04:52:14,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1406 transitions. [2020-10-14 04:52:14,134 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1406 transitions. Word has length 74 [2020-10-14 04:52:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:14,134 INFO L479 AbstractCegarLoop]: Abstraction has 1271 states and 1406 transitions. [2020-10-14 04:52:14,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:52:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1406 transitions. [2020-10-14 04:52:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-14 04:52:14,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:14,135 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2020-10-14 04:52:14,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-10-14 04:52:14,135 INFO L427 AbstractCegarLoop]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:14,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1682954646, now seen corresponding path program 10 times [2020-10-14 04:52:14,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:14,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264616395] [2020-10-14 04:52:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:14,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:14,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1272 [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:52:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:15,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 04:52:15,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:16,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:16,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:16,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:16,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:16,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:16,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:16,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:16,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:16,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:16,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:16,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264616395] [2020-10-14 04:52:16,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:16,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:52:16,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528478809] [2020-10-14 04:52:16,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:52:16,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:16,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:52:16,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:52:16,121 INFO L87 Difference]: Start difference. First operand 1271 states and 1406 transitions. Second operand 15 states. [2020-10-14 04:52:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:17,683 INFO L93 Difference]: Finished difference Result 1602 states and 1775 transitions. [2020-10-14 04:52:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:52:17,683 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 74 [2020-10-14 04:52:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:17,686 INFO L225 Difference]: With dead ends: 1602 [2020-10-14 04:52:17,686 INFO L226 Difference]: Without dead ends: 1600 [2020-10-14 04:52:17,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:52:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2020-10-14 04:52:17,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1139. [2020-10-14 04:52:17,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1139 states. [2020-10-14 04:52:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1262 transitions. [2020-10-14 04:52:17,780 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1262 transitions. Word has length 74 [2020-10-14 04:52:17,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:17,781 INFO L479 AbstractCegarLoop]: Abstraction has 1139 states and 1262 transitions. [2020-10-14 04:52:17,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:52:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1262 transitions. [2020-10-14 04:52:17,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:52:17,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:17,782 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:52:17,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-10-14 04:52:17,782 INFO L427 AbstractCegarLoop]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:17,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:17,782 INFO L82 PathProgramCache]: Analyzing trace with hash -491399899, now seen corresponding path program 5 times [2020-10-14 04:52:17,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:17,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717429456] [2020-10-14 04:52:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:17,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:17,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:17,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:17,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:18,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:18,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:19,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:20,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:20,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2254 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:52:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:20,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:20,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:20,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:20,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:20,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 04:52:20,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717429456] [2020-10-14 04:52:20,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:20,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:52:20,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684271958] [2020-10-14 04:52:20,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:52:20,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:20,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:52:20,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:52:20,457 INFO L87 Difference]: Start difference. First operand 1139 states and 1262 transitions. Second operand 11 states. [2020-10-14 04:52:21,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:21,121 INFO L93 Difference]: Finished difference Result 1169 states and 1292 transitions. [2020-10-14 04:52:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:52:21,121 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2020-10-14 04:52:21,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:21,123 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 04:52:21,123 INFO L226 Difference]: Without dead ends: 1081 [2020-10-14 04:52:21,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:52:21,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2020-10-14 04:52:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1053. [2020-10-14 04:52:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-10-14 04:52:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1168 transitions. [2020-10-14 04:52:21,222 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1168 transitions. Word has length 76 [2020-10-14 04:52:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:21,222 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1168 transitions. [2020-10-14 04:52:21,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:52:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1168 transitions. [2020-10-14 04:52:21,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:52:21,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:21,223 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:52:21,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-10-14 04:52:21,224 INFO L427 AbstractCegarLoop]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:21,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:21,224 INFO L82 PathProgramCache]: Analyzing trace with hash 101965739, now seen corresponding path program 1 times [2020-10-14 04:52:21,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:21,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251154298] [2020-10-14 04:52:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:21,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:21,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:21,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:21,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:21,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:22,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:23,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:23,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:23,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:23,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:24,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:26,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:26,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:52:26,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:52:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:26,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:26,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:26,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:26,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:26,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:26,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:26,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:26,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:26,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:26,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 04:52:26,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251154298] [2020-10-14 04:52:26,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:26,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:52:26,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107955264] [2020-10-14 04:52:26,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:52:26,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:26,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:52:26,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:52:26,506 INFO L87 Difference]: Start difference. First operand 1053 states and 1168 transitions. Second operand 12 states. [2020-10-14 04:52:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:27,471 INFO L93 Difference]: Finished difference Result 1100 states and 1215 transitions. [2020-10-14 04:52:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 04:52:27,472 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 76 [2020-10-14 04:52:27,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:27,474 INFO L225 Difference]: With dead ends: 1100 [2020-10-14 04:52:27,474 INFO L226 Difference]: Without dead ends: 1098 [2020-10-14 04:52:27,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:52:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2020-10-14 04:52:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1047. [2020-10-14 04:52:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2020-10-14 04:52:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1161 transitions. [2020-10-14 04:52:27,575 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1161 transitions. Word has length 76 [2020-10-14 04:52:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:27,575 INFO L479 AbstractCegarLoop]: Abstraction has 1047 states and 1161 transitions. [2020-10-14 04:52:27,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:52:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1161 transitions. [2020-10-14 04:52:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:52:27,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:27,577 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:52:27,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-10-14 04:52:27,577 INFO L427 AbstractCegarLoop]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:27,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1128553893, now seen corresponding path program 4 times [2020-10-14 04:52:27,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:27,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76049148] [2020-10-14 04:52:27,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:27,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:27,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:27,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:27,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:28,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:29,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:29,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:30,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:31,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:31,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:31,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:32,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:32,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:32,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:52:32,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 04:52:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 04:52:32,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:32,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:52:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:32,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 04:52:32,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:32,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:32,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:32,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-14 04:52:33,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76049148] [2020-10-14 04:52:33,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:33,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:52:33,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295137214] [2020-10-14 04:52:33,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:52:33,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:33,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:52:33,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:52:33,010 INFO L87 Difference]: Start difference. First operand 1047 states and 1161 transitions. Second operand 11 states. [2020-10-14 04:52:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:33,549 INFO L93 Difference]: Finished difference Result 1103 states and 1219 transitions. [2020-10-14 04:52:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:52:33,550 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2020-10-14 04:52:33,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:33,551 INFO L225 Difference]: With dead ends: 1103 [2020-10-14 04:52:33,551 INFO L226 Difference]: Without dead ends: 984 [2020-10-14 04:52:33,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:52:33,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-10-14 04:52:33,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 934. [2020-10-14 04:52:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-14 04:52:33,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1037 transitions. [2020-10-14 04:52:33,642 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1037 transitions. Word has length 76 [2020-10-14 04:52:33,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:33,642 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1037 transitions. [2020-10-14 04:52:33,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:52:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1037 transitions. [2020-10-14 04:52:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:52:33,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:33,644 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:52:33,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-10-14 04:52:33,644 INFO L427 AbstractCegarLoop]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:33,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:33,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1584231530, now seen corresponding path program 1 times [2020-10-14 04:52:33,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:33,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782772869] [2020-10-14 04:52:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:33,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:34,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:34,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:37,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:37,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:37,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:38,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:38,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:38,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:38,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:52:38,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-14 04:52:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 04:52:38,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:38,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:38,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:52:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:38,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:52:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:39,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:39,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:39,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:39,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:39,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:39,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:39,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:39,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:39,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:52:39,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782772869] [2020-10-14 04:52:39,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:39,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:52:39,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996063613] [2020-10-14 04:52:39,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:52:39,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:39,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:52:39,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:52:39,139 INFO L87 Difference]: Start difference. First operand 934 states and 1037 transitions. Second operand 12 states. [2020-10-14 04:52:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:40,439 INFO L93 Difference]: Finished difference Result 1171 states and 1305 transitions. [2020-10-14 04:52:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:52:40,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 76 [2020-10-14 04:52:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:40,441 INFO L225 Difference]: With dead ends: 1171 [2020-10-14 04:52:40,441 INFO L226 Difference]: Without dead ends: 1169 [2020-10-14 04:52:40,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:52:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-10-14 04:52:40,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1016. [2020-10-14 04:52:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-14 04:52:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1135 transitions. [2020-10-14 04:52:40,565 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1135 transitions. Word has length 76 [2020-10-14 04:52:40,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:40,565 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1135 transitions. [2020-10-14 04:52:40,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:52:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1135 transitions. [2020-10-14 04:52:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 04:52:40,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:40,566 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2020-10-14 04:52:40,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-10-14 04:52:40,566 INFO L427 AbstractCegarLoop]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:40,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:40,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1059897017, now seen corresponding path program 3 times [2020-10-14 04:52:40,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:40,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122697920] [2020-10-14 04:52:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:40,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:40,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:41,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:41,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:42,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:42,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 04:52:42,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 04:52:42,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2375 [2020-10-14 04:52:42,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:42,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:52:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:42,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:52:42,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:43,453 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-14 04:52:43,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:43,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:43,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:43,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:43,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:43,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122697920] [2020-10-14 04:52:43,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:43,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:52:43,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330474426] [2020-10-14 04:52:43,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:52:43,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:43,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:52:43,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:52:43,853 INFO L87 Difference]: Start difference. First operand 1016 states and 1135 transitions. Second operand 15 states. [2020-10-14 04:52:44,127 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2020-10-14 04:52:44,384 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2020-10-14 04:52:44,618 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-10-14 04:52:44,863 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-14 04:52:45,093 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-10-14 04:52:45,543 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2020-10-14 04:52:45,885 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2020-10-14 04:52:47,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:47,462 INFO L93 Difference]: Finished difference Result 1433 states and 1597 transitions. [2020-10-14 04:52:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:52:47,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 77 [2020-10-14 04:52:47,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:47,465 INFO L225 Difference]: With dead ends: 1433 [2020-10-14 04:52:47,465 INFO L226 Difference]: Without dead ends: 1431 [2020-10-14 04:52:47,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 04:52:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2020-10-14 04:52:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1184. [2020-10-14 04:52:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2020-10-14 04:52:47,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1319 transitions. [2020-10-14 04:52:47,630 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1319 transitions. Word has length 77 [2020-10-14 04:52:47,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:47,631 INFO L479 AbstractCegarLoop]: Abstraction has 1184 states and 1319 transitions. [2020-10-14 04:52:47,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:52:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1319 transitions. [2020-10-14 04:52:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-14 04:52:47,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:47,633 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2020-10-14 04:52:47,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-10-14 04:52:47,633 INFO L427 AbstractCegarLoop]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:47,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:47,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1744500537, now seen corresponding path program 4 times [2020-10-14 04:52:47,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:47,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480726726] [2020-10-14 04:52:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:47,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:47,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:48,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:48,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:48,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 04:52:48,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:52:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-14 04:52:48,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:48,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:52:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:48,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 04:52:48,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:49,228 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-10-14 04:52:49,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:49,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:49,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:49,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:49,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:49,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:49,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:49,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:49,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480726726] [2020-10-14 04:52:49,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:49,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:52:49,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479437161] [2020-10-14 04:52:49,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:52:49,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:49,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:52:49,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:52:49,665 INFO L87 Difference]: Start difference. First operand 1184 states and 1319 transitions. Second operand 15 states. [2020-10-14 04:52:49,982 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2020-10-14 04:52:50,427 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2020-10-14 04:52:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:52,251 INFO L93 Difference]: Finished difference Result 1553 states and 1730 transitions. [2020-10-14 04:52:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 04:52:52,252 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 77 [2020-10-14 04:52:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:52,255 INFO L225 Difference]: With dead ends: 1553 [2020-10-14 04:52:52,255 INFO L226 Difference]: Without dead ends: 1551 [2020-10-14 04:52:52,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2020-10-14 04:52:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2020-10-14 04:52:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1034. [2020-10-14 04:52:52,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-14 04:52:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1153 transitions. [2020-10-14 04:52:52,402 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1153 transitions. Word has length 77 [2020-10-14 04:52:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:52,402 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1153 transitions. [2020-10-14 04:52:52,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:52:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1153 transitions. [2020-10-14 04:52:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 04:52:52,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:52,404 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 04:52:52,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-10-14 04:52:52,404 INFO L427 AbstractCegarLoop]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:52,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:52,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1568404701, now seen corresponding path program 6 times [2020-10-14 04:52:52,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:52,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961304434] [2020-10-14 04:52:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:52,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:52,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:53,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:53,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:53,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:54,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:54,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 04:52:54,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 04:52:54,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2042 [2020-10-14 04:52:54,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:54,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:54,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:52:54,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:54,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:52:54,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:54,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:54,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:54,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:54,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:54,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:54,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:54,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:54,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:54,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:54,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961304434] [2020-10-14 04:52:54,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:54,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 04:52:54,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136400961] [2020-10-14 04:52:54,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 04:52:54,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:54,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 04:52:54,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:52:54,873 INFO L87 Difference]: Start difference. First operand 1034 states and 1153 transitions. Second operand 14 states. [2020-10-14 04:52:57,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:52:57,006 INFO L93 Difference]: Finished difference Result 1637 states and 1827 transitions. [2020-10-14 04:52:57,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:52:57,006 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 79 [2020-10-14 04:52:57,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:52:57,009 INFO L225 Difference]: With dead ends: 1637 [2020-10-14 04:52:57,009 INFO L226 Difference]: Without dead ends: 1517 [2020-10-14 04:52:57,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 04:52:57,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-10-14 04:52:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1362. [2020-10-14 04:52:57,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1362 states. [2020-10-14 04:52:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1513 transitions. [2020-10-14 04:52:57,210 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1513 transitions. Word has length 79 [2020-10-14 04:52:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:52:57,210 INFO L479 AbstractCegarLoop]: Abstraction has 1362 states and 1513 transitions. [2020-10-14 04:52:57,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 04:52:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1513 transitions. [2020-10-14 04:52:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 04:52:57,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:52:57,212 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:52:57,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-10-14 04:52:57,213 INFO L427 AbstractCegarLoop]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:52:57,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:52:57,213 INFO L82 PathProgramCache]: Analyzing trace with hash 794418269, now seen corresponding path program 11 times [2020-10-14 04:52:57,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:52:57,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064960527] [2020-10-14 04:52:57,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:52:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:57,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:57,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:58,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1269 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:52:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:58,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:52:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:52:58,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:52:58,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:52:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:52:58,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:52:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:52:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:52:58,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:52:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:52:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:52:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:52:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:52:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:52:58,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064960527] [2020-10-14 04:52:58,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:52:58,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:52:58,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471749332] [2020-10-14 04:52:58,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:52:58,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:52:58,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:52:58,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:52:58,979 INFO L87 Difference]: Start difference. First operand 1362 states and 1513 transitions. Second operand 15 states. [2020-10-14 04:53:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:02,027 INFO L93 Difference]: Finished difference Result 1941 states and 2156 transitions. [2020-10-14 04:53:02,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:53:02,027 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 79 [2020-10-14 04:53:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:02,030 INFO L225 Difference]: With dead ends: 1941 [2020-10-14 04:53:02,030 INFO L226 Difference]: Without dead ends: 1939 [2020-10-14 04:53:02,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=163, Invalid=1027, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 04:53:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-10-14 04:53:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1612. [2020-10-14 04:53:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1612 states. [2020-10-14 04:53:02,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 1787 transitions. [2020-10-14 04:53:02,243 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 1787 transitions. Word has length 79 [2020-10-14 04:53:02,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:02,243 INFO L479 AbstractCegarLoop]: Abstraction has 1612 states and 1787 transitions. [2020-10-14 04:53:02,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:53:02,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 1787 transitions. [2020-10-14 04:53:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 04:53:02,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:02,245 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:53:02,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-10-14 04:53:02,245 INFO L427 AbstractCegarLoop]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:53:02,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:02,245 INFO L82 PathProgramCache]: Analyzing trace with hash 954183777, now seen corresponding path program 1 times [2020-10-14 04:53:02,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:02,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051666440] [2020-10-14 04:53:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:02,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:02,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:02,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:02,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:02,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:02,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:03,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:03,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:03,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:04,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:04,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:07,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:07,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:53:07,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:07,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:07,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:53:07,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051666440] [2020-10-14 04:53:07,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:07,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:53:07,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447320064] [2020-10-14 04:53:07,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:53:07,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:07,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:53:07,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:53:07,544 INFO L87 Difference]: Start difference. First operand 1612 states and 1787 transitions. Second operand 12 states. [2020-10-14 04:53:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:08,590 INFO L93 Difference]: Finished difference Result 1657 states and 1832 transitions. [2020-10-14 04:53:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:53:08,590 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-14 04:53:08,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:08,591 INFO L225 Difference]: With dead ends: 1657 [2020-10-14 04:53:08,591 INFO L226 Difference]: Without dead ends: 1560 [2020-10-14 04:53:08,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-14 04:53:08,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2020-10-14 04:53:08,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1551. [2020-10-14 04:53:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1551 states. [2020-10-14 04:53:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 1722 transitions. [2020-10-14 04:53:08,730 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 1722 transitions. Word has length 79 [2020-10-14 04:53:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:08,730 INFO L479 AbstractCegarLoop]: Abstraction has 1551 states and 1722 transitions. [2020-10-14 04:53:08,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:53:08,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 1722 transitions. [2020-10-14 04:53:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-14 04:53:08,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:08,731 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:53:08,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2020-10-14 04:53:08,732 INFO L427 AbstractCegarLoop]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:53:08,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:08,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1549903903, now seen corresponding path program 1 times [2020-10-14 04:53:08,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:08,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693761396] [2020-10-14 04:53:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:08,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:08,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:09,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:09,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:09,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:09,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:10,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:11,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:11,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:12,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:12,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:12,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:12,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:13,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:13,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 04:53:13,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-14 04:53:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 04:53:13,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:13,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:53:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 04:53:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:14,084 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-14 04:53:14,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:14,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:14,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:14,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:14,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:14,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:14,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:14,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:14,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 04:53:14,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693761396] [2020-10-14 04:53:14,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:14,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:53:14,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110729110] [2020-10-14 04:53:14,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:53:14,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:14,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:53:14,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:53:14,259 INFO L87 Difference]: Start difference. First operand 1551 states and 1722 transitions. Second operand 12 states. [2020-10-14 04:53:15,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:15,195 INFO L93 Difference]: Finished difference Result 1767 states and 1957 transitions. [2020-10-14 04:53:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:53:15,196 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-14 04:53:15,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:15,197 INFO L225 Difference]: With dead ends: 1767 [2020-10-14 04:53:15,197 INFO L226 Difference]: Without dead ends: 1648 [2020-10-14 04:53:15,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:53:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2020-10-14 04:53:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1432. [2020-10-14 04:53:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1432 states. [2020-10-14 04:53:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1583 transitions. [2020-10-14 04:53:15,330 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1583 transitions. Word has length 79 [2020-10-14 04:53:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:15,330 INFO L479 AbstractCegarLoop]: Abstraction has 1432 states and 1583 transitions. [2020-10-14 04:53:15,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:53:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1583 transitions. [2020-10-14 04:53:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-14 04:53:15,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:15,332 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 04:53:15,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-10-14 04:53:15,332 INFO L427 AbstractCegarLoop]: === Iteration 81 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:53:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:15,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2018734986, now seen corresponding path program 7 times [2020-10-14 04:53:15,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:15,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193972964] [2020-10-14 04:53:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:15,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:15,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:15,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:15,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:15,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:15,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 04:53:15,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 04:53:15,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-14 04:53:15,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:15,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:53:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 04:53:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:16,561 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-14 04:53:16,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:16,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:16,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:16,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:16,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:53:16,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193972964] [2020-10-14 04:53:16,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:16,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:53:16,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156938814] [2020-10-14 04:53:16,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:53:16,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:16,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:53:16,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:53:16,819 INFO L87 Difference]: Start difference. First operand 1432 states and 1583 transitions. Second operand 13 states. [2020-10-14 04:53:17,177 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-10-14 04:53:17,986 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2020-10-14 04:53:18,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:18,463 INFO L93 Difference]: Finished difference Result 1696 states and 1874 transitions. [2020-10-14 04:53:18,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:53:18,463 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-10-14 04:53:18,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:18,465 INFO L225 Difference]: With dead ends: 1696 [2020-10-14 04:53:18,465 INFO L226 Difference]: Without dead ends: 1532 [2020-10-14 04:53:18,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2020-10-14 04:53:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-10-14 04:53:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1299. [2020-10-14 04:53:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-10-14 04:53:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1422 transitions. [2020-10-14 04:53:18,599 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1422 transitions. Word has length 81 [2020-10-14 04:53:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:18,599 INFO L479 AbstractCegarLoop]: Abstraction has 1299 states and 1422 transitions. [2020-10-14 04:53:18,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:53:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1422 transitions. [2020-10-14 04:53:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 04:53:18,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:18,601 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:53:18,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-10-14 04:53:18,601 INFO L427 AbstractCegarLoop]: === Iteration 82 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:53:18,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:18,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1248963060, now seen corresponding path program 5 times [2020-10-14 04:53:18,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:18,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329526960] [2020-10-14 04:53:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:18,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:18,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:20,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1633 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 04:53:20,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:20,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:20,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:20,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:20,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:20,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:53:20,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329526960] [2020-10-14 04:53:20,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:20,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:53:20,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086783007] [2020-10-14 04:53:20,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:53:20,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:20,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:53:20,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:53:20,926 INFO L87 Difference]: Start difference. First operand 1299 states and 1422 transitions. Second operand 15 states. [2020-10-14 04:53:23,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:23,735 INFO L93 Difference]: Finished difference Result 1510 states and 1660 transitions. [2020-10-14 04:53:23,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 04:53:23,736 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 82 [2020-10-14 04:53:23,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:23,738 INFO L225 Difference]: With dead ends: 1510 [2020-10-14 04:53:23,738 INFO L226 Difference]: Without dead ends: 1508 [2020-10-14 04:53:23,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=118, Invalid=874, Unknown=0, NotChecked=0, Total=992 [2020-10-14 04:53:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-14 04:53:23,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1275. [2020-10-14 04:53:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1275 states. [2020-10-14 04:53:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1394 transitions. [2020-10-14 04:53:23,880 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1394 transitions. Word has length 82 [2020-10-14 04:53:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:23,880 INFO L479 AbstractCegarLoop]: Abstraction has 1275 states and 1394 transitions. [2020-10-14 04:53:23,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:53:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1394 transitions. [2020-10-14 04:53:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 04:53:23,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:23,882 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 04:53:23,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2020-10-14 04:53:23,882 INFO L427 AbstractCegarLoop]: === Iteration 83 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:53:23,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:23,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1984248502, now seen corresponding path program 8 times [2020-10-14 04:53:23,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:23,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531418834] [2020-10-14 04:53:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:23,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:24,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 04:53:24,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:25,278 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-10-14 04:53:25,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:53:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:25,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:25,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:53:25,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:53:25,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:53:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:53:25,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:53:25,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:53:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:53:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:53:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:53:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:53:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:53:25,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531418834] [2020-10-14 04:53:25,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:53:25,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 04:53:25,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435501597] [2020-10-14 04:53:25,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 04:53:25,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:53:25,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 04:53:25,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:53:25,555 INFO L87 Difference]: Start difference. First operand 1275 states and 1394 transitions. Second operand 14 states. [2020-10-14 04:53:27,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:53:27,348 INFO L93 Difference]: Finished difference Result 1452 states and 1595 transitions. [2020-10-14 04:53:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:53:27,348 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 84 [2020-10-14 04:53:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:53:27,350 INFO L225 Difference]: With dead ends: 1452 [2020-10-14 04:53:27,350 INFO L226 Difference]: Without dead ends: 1329 [2020-10-14 04:53:27,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:53:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2020-10-14 04:53:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1295. [2020-10-14 04:53:27,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1295 states. [2020-10-14 04:53:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1414 transitions. [2020-10-14 04:53:27,530 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1414 transitions. Word has length 84 [2020-10-14 04:53:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:53:27,531 INFO L479 AbstractCegarLoop]: Abstraction has 1295 states and 1414 transitions. [2020-10-14 04:53:27,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 04:53:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1414 transitions. [2020-10-14 04:53:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 04:53:27,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:53:27,532 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:53:27,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-10-14 04:53:27,532 INFO L427 AbstractCegarLoop]: === Iteration 84 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_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 04:53:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:53:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1675726282, now seen corresponding path program 12 times [2020-10-14 04:53:27,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:53:27,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271760960] [2020-10-14 04:53:27,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:53:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:53:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:27,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:27,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:27,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:53:28,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking...