/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 20:03:31,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 20:03:31,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 20:03:31,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 20:03:31,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 20:03:31,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 20:03:31,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 20:03:31,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 20:03:31,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 20:03:31,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 20:03:31,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 20:03:31,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 20:03:31,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 20:03:31,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 20:03:31,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 20:03:31,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 20:03:31,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 20:03:31,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 20:03:31,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 20:03:31,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 20:03:31,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 20:03:31,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 20:03:31,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 20:03:31,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 20:03:31,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 20:03:31,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 20:03:31,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 20:03:31,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 20:03:31,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 20:03:31,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 20:03:31,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 20:03:31,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 20:03:31,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 20:03:31,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 20:03:31,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 20:03:31,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 20:03:31,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 20:03:31,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 20:03:31,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 20:03:31,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 20:03:31,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 20:03:32,003 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 [2020-10-27 20:03:32,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 20:03:32,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 20:03:32,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 20:03:32,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 20:03:32,054 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 20:03:32,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 20:03:32,055 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 20:03:32,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 20:03:32,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 20:03:32,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 20:03:32,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 20:03:32,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 20:03:32,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 20:03:32,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 20:03:32,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 20:03:32,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 20:03:32,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 20:03:32,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 20:03:32,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 20:03:32,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 20:03:32,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 20:03:32,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 20:03:32,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 20:03:32,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 20:03:32,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 20:03:32,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 20:03:32,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 20:03:32,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 20:03:32,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 20:03:32,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 20:03:32,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 20:03:32,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 20:03:32,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 20:03:32,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 20:03:32,469 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 20:03:32,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i [2020-10-27 20:03:32,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af2f4256a/a831477323b9430eaaa721cc830938f7/FLAGe4aaad702 [2020-10-27 20:03:33,223 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 20:03:33,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i [2020-10-27 20:03:33,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af2f4256a/a831477323b9430eaaa721cc830938f7/FLAGe4aaad702 [2020-10-27 20:03:33,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/af2f4256a/a831477323b9430eaaa721cc830938f7 [2020-10-27 20:03:33,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 20:03:33,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 20:03:33,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 20:03:33,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 20:03:33,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 20:03:33,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:03:33" (1/1) ... [2020-10-27 20:03:33,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c1e6964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:33, skipping insertion in model container [2020-10-27 20:03:33,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:03:33" (1/1) ... [2020-10-27 20:03:33,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 20:03:33,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 20:03:33,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:03:33,875 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 20:03:33,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:03:34,058 INFO L208 MainTranslator]: Completed translation [2020-10-27 20:03:34,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34 WrapperNode [2020-10-27 20:03:34,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 20:03:34,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 20:03:34,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 20:03:34,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 20:03:34,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (1/1) ... [2020-10-27 20:03:34,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 20:03:34,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 20:03:34,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 20:03:34,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 20:03:34,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (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 [2020-10-27 20:03:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 20:03:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 20:03:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 20:03:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 20:03:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 20:03:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-27 20:03:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-27 20:03:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2020-10-27 20:03:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2020-10-27 20:03:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_get_data_at [2020-10-27 20:03:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_update_at [2020-10-27 20:03:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 20:03:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 20:03:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 20:03:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 20:03:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 20:03:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 20:03:34,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 20:03:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 20:03:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 20:03:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 20:03:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 20:03:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 20:03:34,263 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 20:03:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 20:03:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 20:03:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 20:03:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 20:03:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 20:03:34,264 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 20:03:34,265 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 20:03:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 20:03:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 20:03:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 20:03:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 20:03:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 20:03:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 20:03:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 20:03:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 20:03:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 20:03:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 20:03:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 20:03:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 20:03:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 20:03:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 20:03:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 20:03:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 20:03:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 20:03:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 20:03:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 20:03:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 20:03:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 20:03:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 20:03:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_get_data_at [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_update_at [2020-10-27 20:03:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 20:03:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 20:03:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 20:03:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 20:03:34,933 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-27 20:03:35,078 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 20:03:35,078 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-27 20:03:35,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:03:35 BoogieIcfgContainer [2020-10-27 20:03:35,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 20:03:35,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 20:03:35,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 20:03:35,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 20:03:35,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:03:33" (1/3) ... [2020-10-27 20:03:35,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fddc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:03:35, skipping insertion in model container [2020-10-27 20:03:35,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:03:34" (2/3) ... [2020-10-27 20:03:35,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fddc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:03:35, skipping insertion in model container [2020-10-27 20:03:35,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:03:35" (3/3) ... [2020-10-27 20:03:35,089 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2c_update_all_reverse.i [2020-10-27 20:03:35,101 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 20:03:35,107 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 20:03:35,120 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 20:03:35,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 20:03:35,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 20:03:35,147 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 20:03:35,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 20:03:35,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 20:03:35,148 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 20:03:35,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 20:03:35,148 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 20:03:35,167 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-27 20:03:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 20:03:35,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:03:35,175 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] [2020-10-27 20:03:35,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:03:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:03:35,182 INFO L82 PathProgramCache]: Analyzing trace with hash -434495315, now seen corresponding path program 1 times [2020-10-27 20:03:35,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:03:35,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146291436] [2020-10-27 20:03:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:03:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:35,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:35,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 20:03:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:03:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1564 [2020-10-27 20:03:36,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 20:03:36,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 20:03:36,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:03:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:36,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:36,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:36,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:03:36,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:36,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:03:36,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:36,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:37,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:03:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:37,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:37,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:37,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:03:37,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 20:03:37,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:37,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:37,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:03:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:37,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:37,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:37,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:37,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:37,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:03:37,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:37,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:37,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:37,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 20:03:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:37,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:37,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:37,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:37,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:37,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:03:37,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 20:03:37,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:37,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:03:37,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146291436] [2020-10-27 20:03:37,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:03:37,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 20:03:37,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539692011] [2020-10-27 20:03:37,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 20:03:37,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:03:37,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 20:03:37,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 20:03:37,126 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 4 states. [2020-10-27 20:03:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:03:37,484 INFO L93 Difference]: Finished difference Result 108 states and 143 transitions. [2020-10-27 20:03:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 20:03:37,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-27 20:03:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:03:37,495 INFO L225 Difference]: With dead ends: 108 [2020-10-27 20:03:37,495 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 20:03:37,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 20:03:37,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 20:03:37,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-27 20:03:37,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 20:03:37,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2020-10-27 20:03:37,547 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 34 [2020-10-27 20:03:37,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:03:37,548 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2020-10-27 20:03:37,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 20:03:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2020-10-27 20:03:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-27 20:03:37,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:03:37,551 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] [2020-10-27 20:03:37,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:03:37,551 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:03:37,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:03:37,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1190552236, now seen corresponding path program 1 times [2020-10-27 20:03:37,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:03:37,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275131675] [2020-10-27 20:03:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:03:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:37,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:37,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:37,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:37,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:38,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:38,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-27 20:03:38,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:03:38,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1419 [2020-10-27 20:03:38,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:03:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 20:03:38,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 20:03:38,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:03:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:39,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:39,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:03:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:39,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:03:39,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:39,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:39,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:39,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:39,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:03:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:39,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:39,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:03:39,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 20:03:39,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:39,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:03:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:39,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:39,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:39,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:03:39,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:39,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:39,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:39,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 20:03:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:39,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:39,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:39,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:39,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:03:39,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 20:03:39,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:39,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:03:39,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275131675] [2020-10-27 20:03:39,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:03:39,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 20:03:39,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027077663] [2020-10-27 20:03:39,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 20:03:39,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:03:39,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 20:03:39,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 20:03:39,240 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 7 states. [2020-10-27 20:03:39,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:03:39,662 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2020-10-27 20:03:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 20:03:39,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-27 20:03:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:03:39,664 INFO L225 Difference]: With dead ends: 72 [2020-10-27 20:03:39,665 INFO L226 Difference]: Without dead ends: 56 [2020-10-27 20:03:39,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:03:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-27 20:03:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2020-10-27 20:03:39,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-27 20:03:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2020-10-27 20:03:39,678 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 34 [2020-10-27 20:03:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:03:39,678 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2020-10-27 20:03:39,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 20:03:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2020-10-27 20:03:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 20:03:39,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:03:39,680 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, 1, 1, 1, 1, 1, 1] [2020-10-27 20:03:39,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:03:39,681 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:03:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:03:39,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1104110654, now seen corresponding path program 1 times [2020-10-27 20:03:39,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:03:39,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638351013] [2020-10-27 20:03:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:03:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:39,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:39,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:40,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:41,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:42,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:44,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:44,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:44,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 20:03:44,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 20:03:44,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-27 20:03:44,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 20:03:44,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-27 20:03:44,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 20:03:44,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 20:03:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:03:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:44,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:44,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:44,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:03:44,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:44,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:03:44,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:44,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:44,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:44,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:44,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 20:03:45,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:03:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:45,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:45,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:45,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:03:45,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:45,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 20:03:45,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:45,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:45,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:45,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:03:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:45,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:45,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:03:45,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:45,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:45,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 20:03:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:45,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:45,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:45,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:45,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 20:03:45,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:03:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:03:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:45,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:03:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:45,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:45,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:45,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:45,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:45,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 20:03:45,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:03:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:03:45,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:03:45,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638351013] [2020-10-27 20:03:45,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:03:45,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 20:03:45,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479081587] [2020-10-27 20:03:45,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 20:03:45,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:03:45,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 20:03:45,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-27 20:03:45,544 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 15 states. [2020-10-27 20:03:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:03:47,002 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2020-10-27 20:03:47,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 20:03:47,003 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-10-27 20:03:47,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:03:47,006 INFO L225 Difference]: With dead ends: 72 [2020-10-27 20:03:47,006 INFO L226 Difference]: Without dead ends: 68 [2020-10-27 20:03:47,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-10-27 20:03:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-27 20:03:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-10-27 20:03:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-27 20:03:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2020-10-27 20:03:47,021 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 42 [2020-10-27 20:03:47,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:03:47,022 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2020-10-27 20:03:47,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 20:03:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2020-10-27 20:03:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 20:03:47,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:03:47,024 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:03:47,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 20:03:47,024 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:03:47,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:03:47,025 INFO L82 PathProgramCache]: Analyzing trace with hash 566335172, now seen corresponding path program 1 times [2020-10-27 20:03:47,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:03:47,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967212532] [2020-10-27 20:03:47,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:03:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:47,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:47,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:47,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:47,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:47,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:48,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:48,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:52,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:52,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 20:03:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 20:03:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 20:03:52,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:03:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 20:03:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 20:03:52,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:52,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:03:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:52,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:52,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:52,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:03:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:03:52,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:52,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:03:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:52,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:52,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:52,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:03:52,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 20:03:52,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:52,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:52,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:03:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:52,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:52,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:52,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:52,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:52,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:03:52,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:52,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 20:03:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:52,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:52,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:52,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:52,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:52,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 20:03:52,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:03:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:03:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:03:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:52,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:52,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:52,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:03:52,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:52,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:03:52,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:03:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:03:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:03:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:03:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:03:52,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967212532] [2020-10-27 20:03:52,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:03:52,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 20:03:52,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446177039] [2020-10-27 20:03:52,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 20:03:52,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:03:52,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 20:03:52,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:03:52,378 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 12 states. [2020-10-27 20:03:53,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:03:53,669 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-10-27 20:03:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 20:03:53,674 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-27 20:03:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:03:53,676 INFO L225 Difference]: With dead ends: 135 [2020-10-27 20:03:53,676 INFO L226 Difference]: Without dead ends: 84 [2020-10-27 20:03:53,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2020-10-27 20:03:53,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-27 20:03:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2020-10-27 20:03:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-27 20:03:53,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2020-10-27 20:03:53,703 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 43 [2020-10-27 20:03:53,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:03:53,703 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2020-10-27 20:03:53,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 20:03:53,704 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2020-10-27 20:03:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-27 20:03:53,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:03:53,713 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:03:53,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 20:03:53,713 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:03:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:03:53,714 INFO L82 PathProgramCache]: Analyzing trace with hash -762552710, now seen corresponding path program 1 times [2020-10-27 20:03:53,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:03:53,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287206963] [2020-10-27 20:03:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:03:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:53,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:53,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:53,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:53,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:54,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:55,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 20:03:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 20:03:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 20:03:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:03:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-27 20:03:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:03:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:58,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:03:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:58,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:58,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:58,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:03:58,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:58,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:03:58,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:58,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:58,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:03:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:58,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:58,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:58,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:03:58,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:03:58,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:58,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:58,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:58,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:58,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:03:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:58,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:58,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:58,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:58,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:58,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 20:03:58,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:58,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:58,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:58,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 20:03:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:58,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:58,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:58,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:03:58,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:58,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 20:03:58,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:03:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:03:58,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:03:58,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:58,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 20:03:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:58,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:03:58,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:03:58,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:03:58,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:03:58,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:03:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:03:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 20:03:58,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:03:58,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:03:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:03:59,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287206963] [2020-10-27 20:03:59,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:03:59,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 20:03:59,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792110258] [2020-10-27 20:03:59,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 20:03:59,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:03:59,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 20:03:59,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:03:59,004 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 9 states. [2020-10-27 20:03:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:03:59,694 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2020-10-27 20:03:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 20:03:59,695 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2020-10-27 20:03:59,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:03:59,697 INFO L225 Difference]: With dead ends: 83 [2020-10-27 20:03:59,697 INFO L226 Difference]: Without dead ends: 64 [2020-10-27 20:03:59,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:03:59,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-27 20:03:59,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-27 20:03:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-27 20:03:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2020-10-27 20:03:59,719 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 43 [2020-10-27 20:03:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:03:59,720 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2020-10-27 20:03:59,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 20:03:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2020-10-27 20:03:59,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-27 20:03:59,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:03:59,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:03:59,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 20:03:59,729 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:03:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:03:59,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1001308254, now seen corresponding path program 1 times [2020-10-27 20:03:59,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:03:59,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511559098] [2020-10-27 20:03:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:03:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:03:59,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:59,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:03:59,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 20:04:01,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 20:04:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1271 [2020-10-27 20:04:01,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:04:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 20:04:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 20:04:01,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:01,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:01,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 20:04:01,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:01,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 20:04:01,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 20:04:01,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:01,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:01,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:01,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:04:01,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-27 20:04:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:01,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:01,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:04:01,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 20:04:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:01,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:01,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:01,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:04:01,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:01,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:01,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:01,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 20:04:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:01,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:01,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:01,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:01,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:04:01,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 20:04:01,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511559098] [2020-10-27 20:04:01,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:01,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 20:04:01,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031813248] [2020-10-27 20:04:01,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 20:04:01,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:01,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 20:04:01,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-27 20:04:01,360 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand 11 states. [2020-10-27 20:04:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:02,129 INFO L93 Difference]: Finished difference Result 107 states and 129 transitions. [2020-10-27 20:04:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:04:02,131 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-10-27 20:04:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:02,132 INFO L225 Difference]: With dead ends: 107 [2020-10-27 20:04:02,132 INFO L226 Difference]: Without dead ends: 69 [2020-10-27 20:04:02,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-10-27 20:04:02,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-27 20:04:02,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-10-27 20:04:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 20:04:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2020-10-27 20:04:02,154 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 52 [2020-10-27 20:04:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:02,154 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2020-10-27 20:04:02,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 20:04:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2020-10-27 20:04:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 20:04:02,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:02,159 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:02,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 20:04:02,159 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:02,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:02,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1645882766, now seen corresponding path program 1 times [2020-10-27 20:04:02,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:02,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237902128] [2020-10-27 20:04:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:02,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:04,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:04,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:04,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:04,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 20:04:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 20:04:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4810 [2020-10-27 20:04:07,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 20:04:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 20:04:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 20:04:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:07,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:07,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:07,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:07,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:07,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:07,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:04:07,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:07,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:07,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:07,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:07,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:07,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:07,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:07,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:07,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:07,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:07,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-27 20:04:07,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 20:04:07,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:07,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 20:04:07,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:08,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:08,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:08,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:08,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:08,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:08,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 20:04:08,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:08,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:08,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:04:08,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:08,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:08,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:08,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 20:04:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:04:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:04:08,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:04:08,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:08,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:08,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:08,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:08,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:08,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 20:04:08,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:04:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:04:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 20:04:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:08,884 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2020-10-27 20:04:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 20:04:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:08,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:09,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:09,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:09,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:09,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 20:04:09,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:04:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 20:04:09,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:04:09,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:09,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 20:04:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:09,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:09,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:09,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:09,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 20:04:09,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:04:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:04:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 20:04:09,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237902128] [2020-10-27 20:04:09,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:09,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 20:04:09,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131063459] [2020-10-27 20:04:09,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 20:04:09,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:09,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 20:04:09,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=924, Unknown=0, NotChecked=0, Total=992 [2020-10-27 20:04:09,762 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 32 states. [2020-10-27 20:04:11,475 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-10-27 20:04:11,791 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-27 20:04:12,056 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-27 20:04:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:15,125 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2020-10-27 20:04:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 20:04:15,126 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 62 [2020-10-27 20:04:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:15,128 INFO L225 Difference]: With dead ends: 115 [2020-10-27 20:04:15,129 INFO L226 Difference]: Without dead ends: 111 [2020-10-27 20:04:15,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=203, Invalid=2347, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 20:04:15,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-27 20:04:15,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 93. [2020-10-27 20:04:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-27 20:04:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2020-10-27 20:04:15,168 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 62 [2020-10-27 20:04:15,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:15,170 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2020-10-27 20:04:15,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 20:04:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2020-10-27 20:04:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 20:04:15,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:15,172 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:15,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 20:04:15,172 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1215885072, now seen corresponding path program 2 times [2020-10-27 20:04:15,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:15,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924553729] [2020-10-27 20:04:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:15,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:15,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:15,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:15,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:18,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-27 20:04:20,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 20:04:20,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 20:04:20,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 20:04:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 20:04:20,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-27 20:04:20,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:20,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:20,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:20,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 20:04:20,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:20,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:20,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:20,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:04:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:20,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:20,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:20,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:20,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:04:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 20:04:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:20,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:20,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:20,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:20,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 20:04:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:20,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:20,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:20,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 20:04:20,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:20,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:04:20,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:04:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 20:04:20,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924553729] [2020-10-27 20:04:20,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:20,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 20:04:20,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905701834] [2020-10-27 20:04:20,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 20:04:20,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:20,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 20:04:20,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-27 20:04:20,602 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand 14 states. [2020-10-27 20:04:22,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:22,023 INFO L93 Difference]: Finished difference Result 126 states and 159 transitions. [2020-10-27 20:04:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 20:04:22,024 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2020-10-27 20:04:22,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:22,026 INFO L225 Difference]: With dead ends: 126 [2020-10-27 20:04:22,027 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 20:04:22,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2020-10-27 20:04:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 20:04:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2020-10-27 20:04:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-27 20:04:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2020-10-27 20:04:22,044 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 112 transitions. Word has length 63 [2020-10-27 20:04:22,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:22,044 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 112 transitions. [2020-10-27 20:04:22,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 20:04:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 112 transitions. [2020-10-27 20:04:22,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 20:04:22,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:22,046 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:22,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 20:04:22,047 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:22,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:22,047 INFO L82 PathProgramCache]: Analyzing trace with hash 843075590, now seen corresponding path program 3 times [2020-10-27 20:04:22,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:22,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445830372] [2020-10-27 20:04:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:22,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:22,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:22,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:22,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:23,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 20:04:27,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 20:04:27,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:27,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:27,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:27,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:27,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:27,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:27,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:04:27,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 20:04:27,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 20:04:27,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 20:04:27,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 20:04:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:04:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 20:04:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:27,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:27,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:27,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:27,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:27,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 20:04:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-27 20:04:27,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445830372] [2020-10-27 20:04:27,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:27,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 20:04:27,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100503276] [2020-10-27 20:04:27,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 20:04:27,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:27,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 20:04:27,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-27 20:04:27,378 INFO L87 Difference]: Start difference. First operand 89 states and 112 transitions. Second operand 11 states. [2020-10-27 20:04:28,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:28,429 INFO L93 Difference]: Finished difference Result 122 states and 150 transitions. [2020-10-27 20:04:28,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:04:28,430 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2020-10-27 20:04:28,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:28,431 INFO L225 Difference]: With dead ends: 122 [2020-10-27 20:04:28,431 INFO L226 Difference]: Without dead ends: 93 [2020-10-27 20:04:28,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2020-10-27 20:04:28,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-27 20:04:28,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2020-10-27 20:04:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-27 20:04:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 113 transitions. [2020-10-27 20:04:28,447 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 113 transitions. Word has length 63 [2020-10-27 20:04:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:28,447 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 113 transitions. [2020-10-27 20:04:28,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 20:04:28,448 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 113 transitions. [2020-10-27 20:04:28,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 20:04:28,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:28,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:28,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 20:04:28,449 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:28,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:28,450 INFO L82 PathProgramCache]: Analyzing trace with hash 520603760, now seen corresponding path program 4 times [2020-10-27 20:04:28,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:28,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074534635] [2020-10-27 20:04:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:28,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:28,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:28,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:28,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:28,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-27 20:04:33,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 20:04:33,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 20:04:33,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:04:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 20:04:33,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 20:04:33,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:33,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:33,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:33,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:33,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:33,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:33,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:33,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:33,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:04:33,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:33,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:33,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:33,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:04:33,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:04:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 20:04:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:33,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:04:33,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:33,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:33,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:33,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 20:04:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:33,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 20:04:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:33,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:33,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:33,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:33,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:33,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 20:04:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 20:04:33,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074534635] [2020-10-27 20:04:33,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:33,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 20:04:33,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329548488] [2020-10-27 20:04:33,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 20:04:33,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:33,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 20:04:33,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:04:33,824 INFO L87 Difference]: Start difference. First operand 90 states and 113 transitions. Second operand 12 states. [2020-10-27 20:04:35,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:35,007 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2020-10-27 20:04:35,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 20:04:35,008 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-10-27 20:04:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:35,010 INFO L225 Difference]: With dead ends: 142 [2020-10-27 20:04:35,010 INFO L226 Difference]: Without dead ends: 92 [2020-10-27 20:04:35,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-10-27 20:04:35,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-27 20:04:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2020-10-27 20:04:35,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-27 20:04:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2020-10-27 20:04:35,024 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 71 [2020-10-27 20:04:35,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:35,025 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2020-10-27 20:04:35,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 20:04:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2020-10-27 20:04:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 20:04:35,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:35,026 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:35,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 20:04:35,027 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:35,027 INFO L82 PathProgramCache]: Analyzing trace with hash 275628935, now seen corresponding path program 1 times [2020-10-27 20:04:35,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:35,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [931397760] [2020-10-27 20:04:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:35,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:35,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:35,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:35,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:35,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:36,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:36,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:37,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:37,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:37,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:38,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 20:04:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-27 20:04:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 20:04:40,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:04:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 20:04:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 20:04:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:40,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:40,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 20:04:40,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:40,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:40,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:40,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:40,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:04:40,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 20:04:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:40,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:40,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:40,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 20:04:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:40,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:40,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 20:04:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:40,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:40,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:40,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:40,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:40,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 20:04:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-27 20:04:40,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [931397760] [2020-10-27 20:04:40,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:40,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 20:04:40,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267104371] [2020-10-27 20:04:40,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 20:04:40,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:40,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 20:04:40,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-27 20:04:40,343 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand 11 states. [2020-10-27 20:04:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:41,136 INFO L93 Difference]: Finished difference Result 120 states and 143 transitions. [2020-10-27 20:04:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 20:04:41,137 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-10-27 20:04:41,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:41,138 INFO L225 Difference]: With dead ends: 120 [2020-10-27 20:04:41,138 INFO L226 Difference]: Without dead ends: 100 [2020-10-27 20:04:41,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-10-27 20:04:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-27 20:04:41,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2020-10-27 20:04:41,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-27 20:04:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2020-10-27 20:04:41,153 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 72 [2020-10-27 20:04:41,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:41,154 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2020-10-27 20:04:41,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 20:04:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2020-10-27 20:04:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 20:04:41,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:41,155 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:41,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 20:04:41,156 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash -425766564, now seen corresponding path program 5 times [2020-10-27 20:04:41,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:41,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803839439] [2020-10-27 20:04:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:41,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:41,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:41,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:41,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:41,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:41,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:42,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:42,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:42,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 20:04:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 20:04:46,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:46,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:46,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:46,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:46,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:46,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:04:46,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:46,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 20:04:46,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:46,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:46,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:04:46,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:46,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:04:46,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:46,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 20:04:46,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:04:46,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 20:04:46,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 20:04:46,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:04:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:46,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 20:04:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:46,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:04:46,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:04:46,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 20:04:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:04:46,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 20:04:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:46,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:46,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:46,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:46,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:46,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:04:46,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-27 20:04:46,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803839439] [2020-10-27 20:04:46,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:46,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 20:04:46,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816711010] [2020-10-27 20:04:46,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 20:04:46,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:46,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 20:04:46,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:04:46,653 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand 13 states. [2020-10-27 20:04:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:47,690 INFO L93 Difference]: Finished difference Result 148 states and 180 transitions. [2020-10-27 20:04:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 20:04:47,693 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-10-27 20:04:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:47,694 INFO L225 Difference]: With dead ends: 148 [2020-10-27 20:04:47,694 INFO L226 Difference]: Without dead ends: 100 [2020-10-27 20:04:47,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2020-10-27 20:04:47,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-27 20:04:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2020-10-27 20:04:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-27 20:04:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2020-10-27 20:04:47,707 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 72 [2020-10-27 20:04:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:47,708 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2020-10-27 20:04:47,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 20:04:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2020-10-27 20:04:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-27 20:04:47,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:47,710 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-27 20:04:47,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 20:04:47,710 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:47,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1647551610, now seen corresponding path program 6 times [2020-10-27 20:04:47,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:47,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792466995] [2020-10-27 20:04:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:47,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:47,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:47,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:52,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 20:04:52,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 20:04:52,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:52,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:52,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:52,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:52,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:52,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:52,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:52,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:52,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 20:04:53,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:53,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:53,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:53,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 20:04:53,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:53,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:53,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:53,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:53,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:53,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:53,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:04:53,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 20:04:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:04:53,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:04:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 20:04:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:53,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:53,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 20:04:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 20:04:53,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 20:04:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:53,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:53,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:53,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:04:53,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:04:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 20:04:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:53,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:53,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:53,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:53,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:53,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:53,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 20:04:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:53,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-27 20:04:53,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1792466995] [2020-10-27 20:04:53,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:04:53,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 20:04:53,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585357561] [2020-10-27 20:04:53,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 20:04:53,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:04:53,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 20:04:53,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-27 20:04:53,379 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 15 states. [2020-10-27 20:04:54,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:04:54,678 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2020-10-27 20:04:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 20:04:54,683 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 72 [2020-10-27 20:04:54,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:04:54,684 INFO L225 Difference]: With dead ends: 114 [2020-10-27 20:04:54,684 INFO L226 Difference]: Without dead ends: 66 [2020-10-27 20:04:54,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2020-10-27 20:04:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-27 20:04:54,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-27 20:04:54,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-27 20:04:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-10-27 20:04:54,693 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 72 [2020-10-27 20:04:54,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:04:54,694 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-10-27 20:04:54,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 20:04:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-10-27 20:04:54,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-27 20:04:54,695 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:04:54,695 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:04:54,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 20:04:54,695 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:04:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:04:54,696 INFO L82 PathProgramCache]: Analyzing trace with hash -940297563, now seen corresponding path program 2 times [2020-10-27 20:04:54,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:04:54,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516674460] [2020-10-27 20:04:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:04:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:54,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:54,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:54,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:54,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:54,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 20:04:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 20:04:59,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 20:04:59,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 20:04:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-27 20:04:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 20:04:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:04:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 20:04:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 20:04:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 20:04:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:59,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:59,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:59,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 20:04:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:59,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:59,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:59,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 20:04:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 20:04:59,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 20:04:59,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:04:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:04:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 20:04:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 20:04:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:04:59,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 20:04:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:04:59,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:04:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 20:04:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 20:04:59,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:05:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-27 20:05:00,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516674460] [2020-10-27 20:05:00,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:05:00,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 20:05:00,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282706202] [2020-10-27 20:05:00,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 20:05:00,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:05:00,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 20:05:00,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-27 20:05:00,016 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 12 states. [2020-10-27 20:05:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:05:00,833 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2020-10-27 20:05:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 20:05:00,834 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-10-27 20:05:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:05:00,835 INFO L225 Difference]: With dead ends: 86 [2020-10-27 20:05:00,835 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 20:05:00,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-10-27 20:05:00,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 20:05:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 20:05:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 20:05:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 20:05:00,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-10-27 20:05:00,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:05:00,837 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 20:05:00,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 20:05:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 20:05:00,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 20:05:00,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 20:05:00,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 20:05:01,859 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2020-10-27 20:05:02,232 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-27 20:05:02,545 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-27 20:05:03,003 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-10-27 20:05:03,827 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-27 20:05:04,385 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 35 [2020-10-27 20:05:04,426 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-27 20:05:04,427 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-27 20:05:04,427 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-27 20:05:04,427 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-27 20:05:04,427 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-27 20:05:04,427 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:05:04,428 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:05:04,428 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:05:04,428 INFO L277 CegarLoopResult]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2020-10-27 20:05:04,428 INFO L277 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: true [2020-10-27 20:05:04,428 INFO L274 CegarLoopResult]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2020-10-27 20:05:04,428 INFO L274 CegarLoopResult]: For program point L602(lines 602 610) no Hoare annotation was computed. [2020-10-27 20:05:04,428 INFO L277 CegarLoopResult]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2020-10-27 20:05:04,428 INFO L274 CegarLoopResult]: For program point L604-3(lines 604 608) no Hoare annotation was computed. [2020-10-27 20:05:04,428 INFO L274 CegarLoopResult]: For program point L602-2(lines 601 611) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L270 CegarLoopResult]: At program point dll_circular_destroyENTRY(lines 601 611) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point dll_circular_destroyEXIT(lines 601 611) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point __bswap_32ENTRY(lines 74 78) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point __bswap_32FINAL(lines 74 78) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point __bswap_32EXIT(lines 74 78) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point __bswap_64ENTRY(lines 79 83) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point __bswap_64FINAL(lines 79 83) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point __bswap_64EXIT(lines 79 83) no Hoare annotation was computed. [2020-10-27 20:05:04,429 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:05:04,430 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 20:05:04,430 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 20:05:04,430 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:05:04,430 INFO L270 CegarLoopResult]: At program point L638(lines 626 645) the Hoare annotation is: false [2020-10-27 20:05:04,430 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 626 645) no Hoare annotation was computed. [2020-10-27 20:05:04,430 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 626 645) no Hoare annotation was computed. [2020-10-27 20:05:04,430 INFO L274 CegarLoopResult]: For program point L643(line 643) no Hoare annotation was computed. [2020-10-27 20:05:04,430 INFO L274 CegarLoopResult]: For program point L641(line 641) no Hoare annotation was computed. [2020-10-27 20:05:04,431 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 626 645) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:05:04,431 INFO L270 CegarLoopResult]: At program point L637(line 637) the Hoare annotation is: (let ((.cse4 (select (select |#memory_int| main_~s~0.base) (+ main_~s~0.offset 8)))) (let ((.cse0 (or (< 0 main_~i~0) (= .cse4 main_~expected~0))) (.cse2 (<= 0 main_~i~0)) (.cse1 (= .cse4 main_~len~0))) (or (and .cse0 (<= main_~i~0 0) (<= main_~len~0 (+ main_~i~0 1)) .cse1) (let ((.cse3 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~s~0.base) main_~s~0.offset)) 8))) (and .cse2 (= (+ main_~i~0 main_~len~0) .cse3) (= (+ .cse3 1) (* main_~len~0 2)) (= main_~expected~0 .cse3) .cse1 (= 0 (select (select |#memory_$Pointer$.offset| main_~s~0.base) main_~s~0.offset)) (= main_~s~0.offset 0) (<= main_~i~0 1))) (and .cse0 (<= main_~len~0 2) (<= (+ main_~i~0 2) main_~len~0) .cse2 .cse1)))) [2020-10-27 20:05:04,431 INFO L274 CegarLoopResult]: For program point L637-1(line 637) no Hoare annotation was computed. [2020-10-27 20:05:04,431 INFO L274 CegarLoopResult]: For program point L637-2(lines 637 639) no Hoare annotation was computed. [2020-10-27 20:05:04,431 INFO L270 CegarLoopResult]: At program point L633(line 633) the Hoare annotation is: (let ((.cse6 (select (select |#memory_$Pointer$.base| main_~s~0.base) main_~s~0.offset))) (let ((.cse2 (* main_~len~0 2)) (.cse3 (= 0 (select (select |#memory_$Pointer$.offset| main_~s~0.base) main_~s~0.offset))) (.cse4 (not (= .cse6 main_~s~0.base))) (.cse5 (= main_~s~0.offset 0)) (.cse0 (<= 0 main_~i~0)) (.cse1 (= (+ main_~i~0 main_~len~0) main_~new_data~0))) (or (and .cse0 .cse1 (= (+ main_~new_data~0 1) .cse2) .cse3 .cse4 .cse5 (<= main_~i~0 1)) (and (<= main_~len~0 2) (<= (+ main_~i~0 2) main_~len~0) .cse0 .cse1 (= (+ (select (select |#memory_int| .cse6) 8) 1) .cse2) .cse3 .cse4 .cse5) (and (<= main_~i~0 0) (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1)))) [2020-10-27 20:05:04,431 INFO L274 CegarLoopResult]: For program point L635-2(lines 635 640) no Hoare annotation was computed. [2020-10-27 20:05:04,432 INFO L274 CegarLoopResult]: For program point L633-1(lines 631 634) no Hoare annotation was computed. [2020-10-27 20:05:04,432 INFO L270 CegarLoopResult]: At program point L635-3(lines 635 640) the Hoare annotation is: (let ((.cse2 (= (select (select |#memory_int| main_~s~0.base) (+ main_~s~0.offset 8)) main_~len~0))) (or (let ((.cse0 (+ main_~i~0 1))) (and (<= main_~len~0 .cse0) (<= .cse0 0))) (let ((.cse1 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~s~0.base) main_~s~0.offset)) 8))) (and (= (+ main_~i~0 main_~len~0) .cse1) (= (+ .cse1 1) (* main_~len~0 2)) .cse2 (= 0 (select (select |#memory_$Pointer$.offset| main_~s~0.base) main_~s~0.offset)) (= main_~s~0.offset 0) (<= main_~i~0 1))) (and (<= main_~len~0 2) (<= (+ main_~i~0 2) main_~len~0) .cse2) (and (<= main_~i~0 0) .cse2 (<= main_~len~0 1)))) [2020-10-27 20:05:04,432 INFO L277 CegarLoopResult]: At program point L635-4(lines 635 640) the Hoare annotation is: true [2020-10-27 20:05:04,432 INFO L270 CegarLoopResult]: At program point L629(line 629) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= main_~len~0 2) (= |old(#length)| |#length|) (<= 2 main_~len~0) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:05:04,433 INFO L270 CegarLoopResult]: At program point L631-2(lines 631 634) the Hoare annotation is: (let ((.cse7 (* main_~len~0 2)) (.cse0 (+ main_~i~0 1)) (.cse10 (select (select |#memory_$Pointer$.base| main_~s~0.base) main_~s~0.offset))) (let ((.cse3 (not (= .cse10 main_~s~0.base))) (.cse1 (<= main_~len~0 .cse0)) (.cse5 (<= main_~len~0 2)) (.cse6 (= (+ (select (select |#memory_int| .cse10) 8) 1) .cse7)) (.cse2 (= 0 (select (select |#memory_$Pointer$.offset| main_~s~0.base) main_~s~0.offset))) (.cse4 (= main_~s~0.offset 0)) (.cse8 (<= main_~i~0 0)) (.cse9 (= (select (select |#memory_int| main_~s~0.base) (+ main_~s~0.offset 8)) main_~len~0))) (or (and (<= .cse0 main_~len~0) .cse1 .cse2 .cse3 .cse4 (<= main_~i~0 1)) (and .cse5 (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse6 (= (+ main_~new_data~0 1) .cse7) .cse2 .cse3 .cse4) (and .cse8 .cse1) (and .cse5 .cse6 .cse9 .cse2 .cse4 (<= (+ main_~i~0 3) main_~len~0)) (and .cse8 .cse9 (<= main_~len~0 1))))) [2020-10-27 20:05:04,433 INFO L274 CegarLoopResult]: For program point L629-1(line 629) no Hoare annotation was computed. [2020-10-27 20:05:04,433 INFO L274 CegarLoopResult]: For program point L631-3(lines 631 634) no Hoare annotation was computed. [2020-10-27 20:05:04,433 INFO L274 CegarLoopResult]: For program point dll_circular_createEXIT(lines 585 600) no Hoare annotation was computed. [2020-10-27 20:05:04,433 INFO L274 CegarLoopResult]: For program point dll_circular_createFINAL(lines 585 600) no Hoare annotation was computed. [2020-10-27 20:05:04,433 INFO L274 CegarLoopResult]: For program point L591(lines 591 593) no Hoare annotation was computed. [2020-10-27 20:05:04,433 INFO L270 CegarLoopResult]: At program point L589(line 589) the Hoare annotation is: (or (<= 3 |dll_circular_create_#in~len|) (and (= dll_circular_create_~len |dll_circular_create_#in~len|) (= dll_circular_create_~head~0.offset 0) (= (select |#valid| dll_circular_create_~last~0.base) 1) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base))) [2020-10-27 20:05:04,433 INFO L274 CegarLoopResult]: For program point L591-2(lines 591 593) no Hoare annotation was computed. [2020-10-27 20:05:04,434 INFO L274 CegarLoopResult]: For program point L589-1(line 589) no Hoare annotation was computed. [2020-10-27 20:05:04,434 INFO L270 CegarLoopResult]: At program point L586(line 586) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= dll_circular_create_~len |dll_circular_create_#in~len|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:05:04,434 INFO L270 CegarLoopResult]: At program point L588-2(lines 588 596) the Hoare annotation is: (let ((.cse1 (= dll_circular_create_~head~0.offset 0)) (.cse0 (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base))) (or (and (= (select (select |#memory_$Pointer$.offset| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset) 0) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)) (= (select (select |#memory_$Pointer$.offset| dll_circular_create_~head~0.base) dll_circular_create_~head~0.offset) 0) (= (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset) dll_circular_create_~last~0.base) (not .cse0) (= (+ dll_circular_create_~len 1) |dll_circular_create_#in~len|) (= dll_circular_create_~new_head~0.offset 0) .cse1 (not (= dll_circular_create_~head~0.base (select (select |#memory_$Pointer$.base| dll_circular_create_~head~0.base) dll_circular_create_~head~0.offset)))) (<= 3 |dll_circular_create_#in~len|) (and (= dll_circular_create_~len |dll_circular_create_#in~len|) .cse1 (= (select |#valid| dll_circular_create_~last~0.base) 1) .cse0))) [2020-10-27 20:05:04,434 INFO L274 CegarLoopResult]: For program point L586-1(line 586) no Hoare annotation was computed. [2020-10-27 20:05:04,434 INFO L274 CegarLoopResult]: For program point L588-3(lines 588 596) no Hoare annotation was computed. [2020-10-27 20:05:04,434 INFO L270 CegarLoopResult]: At program point dll_circular_createENTRY(lines 585 600) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:05:04,434 INFO L274 CegarLoopResult]: For program point dll_circular_update_atFINAL(lines 619 625) no Hoare annotation was computed. [2020-10-27 20:05:04,435 INFO L270 CegarLoopResult]: At program point L620-2(lines 620 623) the Hoare annotation is: (let ((.cse5 (= dll_circular_update_at_~index |dll_circular_update_at_#in~index|))) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (let ((.cse4 (= dll_circular_update_at_~head.base |dll_circular_update_at_#in~head.base|)) (.cse2 (= |dll_circular_update_at_#in~data| dll_circular_update_at_~data))) (or (not (<= |dll_circular_update_at_#in~index| 1)) (let ((.cse0 (+ dll_circular_update_at_~index 1))) (and (<= .cse0 |dll_circular_update_at_#in~index|) (let ((.cse1 (select (select |#memory_$Pointer$.base| |dll_circular_update_at_#in~head.base|) |dll_circular_update_at_#in~head.offset|))) (or (= |dll_circular_update_at_#in~head.base| .cse1) (let ((.cse3 (= dll_circular_update_at_~head.offset 0))) (and (or (and (= dll_circular_update_at_~head.base .cse1) .cse2) (not .cse3)) (or (= dll_circular_update_at_~head.offset (select (select |#memory_$Pointer$.offset| |dll_circular_update_at_#in~head.base|) |dll_circular_update_at_#in~head.offset|)) .cse3) (not .cse4))))) (<= |dll_circular_update_at_#in~index| .cse0))) (and (= |dll_circular_update_at_#in~head.offset| dll_circular_update_at_~head.offset) .cse5 .cse4 .cse2))) (= |#memory_int| |old(#memory_int)|) (or (not (<= |dll_circular_update_at_#in~index| 0)) .cse5) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|))) [2020-10-27 20:05:04,435 INFO L274 CegarLoopResult]: For program point L620-3(lines 620 623) no Hoare annotation was computed. [2020-10-27 20:05:04,435 INFO L274 CegarLoopResult]: For program point dll_circular_update_atEXIT(lines 619 625) no Hoare annotation was computed. [2020-10-27 20:05:04,435 INFO L270 CegarLoopResult]: At program point dll_circular_update_atENTRY(lines 619 625) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-10-27 20:05:04,435 INFO L274 CegarLoopResult]: For program point L577(lines 577 579) no Hoare annotation was computed. [2020-10-27 20:05:04,435 INFO L274 CegarLoopResult]: For program point L577-1(lines 577 579) no Hoare annotation was computed. [2020-10-27 20:05:04,436 INFO L270 CegarLoopResult]: At program point node_createENTRY(lines 575 584) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:05:04,436 INFO L274 CegarLoopResult]: For program point node_createFINAL(lines 575 584) no Hoare annotation was computed. [2020-10-27 20:05:04,436 INFO L274 CegarLoopResult]: For program point node_createEXIT(lines 575 584) no Hoare annotation was computed. [2020-10-27 20:05:04,436 INFO L277 CegarLoopResult]: At program point L578(line 578) the Hoare annotation is: true [2020-10-27 20:05:04,436 INFO L274 CegarLoopResult]: For program point dll_circular_get_data_atFINAL(lines 612 618) no Hoare annotation was computed. [2020-10-27 20:05:04,436 INFO L274 CegarLoopResult]: For program point dll_circular_get_data_atEXIT(lines 612 618) no Hoare annotation was computed. [2020-10-27 20:05:04,436 INFO L277 CegarLoopResult]: At program point dll_circular_get_data_atENTRY(lines 612 618) the Hoare annotation is: true [2020-10-27 20:05:04,436 INFO L270 CegarLoopResult]: At program point L613-2(lines 613 616) the Hoare annotation is: (let ((.cse0 (= |dll_circular_get_data_at_#in~index| dll_circular_get_data_at_~index)) (.cse1 (+ dll_circular_get_data_at_~index 1))) (and (or (and .cse0 (<= dll_circular_get_data_at_~head.offset |dll_circular_get_data_at_#in~head.offset|) (<= |dll_circular_get_data_at_#in~head.offset| dll_circular_get_data_at_~head.offset) (= |dll_circular_get_data_at_#in~head.base| dll_circular_get_data_at_~head.base)) (<= .cse1 |dll_circular_get_data_at_#in~index|)) (or .cse0 (not (<= |dll_circular_get_data_at_#in~index| 1)) (let ((.cse2 (= dll_circular_get_data_at_~head.offset 0))) (and (<= 1 |dll_circular_get_data_at_#in~index|) (or .cse2 (= dll_circular_get_data_at_~head.offset (select (select |#memory_$Pointer$.offset| |dll_circular_get_data_at_#in~head.base|) |dll_circular_get_data_at_#in~head.offset|))) (or (= (select (select |#memory_$Pointer$.base| |dll_circular_get_data_at_#in~head.base|) |dll_circular_get_data_at_#in~head.offset|) dll_circular_get_data_at_~head.base) (not .cse2)) (<= |dll_circular_get_data_at_#in~index| .cse1)))))) [2020-10-27 20:05:04,437 INFO L274 CegarLoopResult]: For program point L613-3(lines 613 616) no Hoare annotation was computed. [2020-10-27 20:05:04,451 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,452 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,460 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,466 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,469 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,469 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,475 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,478 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,482 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,484 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,484 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,486 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:05:04 BoogieIcfgContainer [2020-10-27 20:05:04,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 20:05:04,491 INFO L168 Benchmark]: Toolchain (without parser) took 91059.99 ms. Allocated memory was 163.6 MB in the beginning and 761.3 MB in the end (delta: 597.7 MB). Free memory was 143.4 MB in the beginning and 545.6 MB in the end (delta: -402.2 MB). Peak memory consumption was 457.5 MB. Max. memory is 8.0 GB. [2020-10-27 20:05:04,492 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:05:04,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.22 ms. Allocated memory is still 163.6 MB. Free memory was 142.8 MB in the beginning and 133.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. [2020-10-27 20:05:04,493 INFO L168 Benchmark]: Boogie Preprocessor took 110.87 ms. Allocated memory is still 163.6 MB. Free memory was 133.9 MB in the beginning and 130.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 20:05:04,494 INFO L168 Benchmark]: RCFGBuilder took 905.81 ms. Allocated memory was 163.6 MB in the beginning and 210.8 MB in the end (delta: 47.2 MB). Free memory was 130.9 MB in the beginning and 178.3 MB in the end (delta: -47.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 8.0 GB. [2020-10-27 20:05:04,495 INFO L168 Benchmark]: TraceAbstraction took 89407.24 ms. Allocated memory was 210.8 MB in the beginning and 761.3 MB in the end (delta: 550.5 MB). Free memory was 177.8 MB in the beginning and 545.6 MB in the end (delta: -367.8 MB). Peak memory consumption was 445.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:05:04,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 163.6 MB. Free memory is still 135.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 625.22 ms. Allocated memory is still 163.6 MB. Free memory was 142.8 MB in the beginning and 133.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.87 ms. Allocated memory is still 163.6 MB. Free memory was 133.9 MB in the beginning and 130.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 905.81 ms. Allocated memory was 163.6 MB in the beginning and 210.8 MB in the end (delta: 47.2 MB). Free memory was 130.9 MB in the beginning and 178.3 MB in the end (delta: -47.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 89407.24 ms. Allocated memory was 210.8 MB in the beginning and 761.3 MB in the end (delta: 550.5 MB). Free memory was 177.8 MB in the beginning and 545.6 MB in the end (delta: -367.8 MB). Peak memory consumption was 445.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 631]: Loop Invariant [2020-10-27 20:05:04,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((i + 1 <= len && len <= i + 1) && 0 == #memory_$Pointer$[s][s]) && !(#memory_$Pointer$[s][s] == s)) && s == 0) && i <= 1) || (((((((len <= 2 && i + 2 <= len) && 0 <= i) && unknown-#memory_int-unknown[#memory_$Pointer$[s][s]][8] + 1 == len * 2) && new_data + 1 == len * 2) && 0 == #memory_$Pointer$[s][s]) && !(#memory_$Pointer$[s][s] == s)) && s == 0)) || (i <= 0 && len <= i + 1)) || (((((len <= 2 && unknown-#memory_int-unknown[#memory_$Pointer$[s][s]][8] + 1 == len * 2) && unknown-#memory_int-unknown[s][s + 8] == len) && 0 == #memory_$Pointer$[s][s]) && s == 0) && i + 3 <= len)) || ((i <= 0 && unknown-#memory_int-unknown[s][s + 8] == len) && len <= 1) - InvariantResult [Line: 620]: Loop Invariant [2020-10-27 20:05:04,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((#memory_$Pointer$ == \old(#memory_$Pointer$) && ((!(\old(index) <= 1) || ((index + 1 <= \old(index) && (head == #memory_$Pointer$[head][head] || ((((head == #memory_$Pointer$[head][head] && \old(data) == data) || !(head == 0)) && (head == #memory_$Pointer$[head][head] || head == 0)) && !(head == head)))) && \old(index) <= index + 1)) || (((head == head && index == \old(index)) && head == head) && \old(data) == data))) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && (!(\old(index) <= 0) || index == \old(index))) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 613]: Loop Invariant [2020-10-27 20:05:04,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((\old(index) == index && head <= head) && head <= head) && head == head) || index + 1 <= \old(index)) && ((\old(index) == index || !(\old(index) <= 1)) || (((1 <= \old(index) && (head == 0 || head == #memory_$Pointer$[head][head])) && (#memory_$Pointer$[head][head] == head || !(head == 0))) && \old(index) <= index + 1)) - InvariantResult [Line: 626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 635]: Loop Invariant [2020-10-27 20:05:04,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,531 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-27 20:05:04,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((len <= i + 1 && i + 1 <= 0) || (((((i + len == unknown-#memory_int-unknown[#memory_$Pointer$[s][s]][8] && unknown-#memory_int-unknown[#memory_$Pointer$[s][s]][8] + 1 == len * 2) && unknown-#memory_int-unknown[s][s + 8] == len) && 0 == #memory_$Pointer$[s][s]) && s == 0) && i <= 1)) || ((len <= 2 && i + 2 <= len) && unknown-#memory_int-unknown[s][s + 8] == len)) || ((i <= 0 && unknown-#memory_int-unknown[s][s + 8] == len) && len <= 1) - InvariantResult [Line: 588]: Loop Invariant [2020-10-27 20:05:04,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-27 20:05:04,535 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,535 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-27 20:05:04,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-27 20:05:04,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((((((#memory_$Pointer$[new_head][new_head] == 0 && !(new_head == last)) && #memory_$Pointer$[head][head] == 0) && #memory_$Pointer$[new_head][new_head] == last) && !(head == last)) && len + 1 == \old(len)) && new_head == 0) && head == 0) && !(head == #memory_$Pointer$[head][head])) || 3 <= \old(len)) || (((len == \old(len) && head == 0) && \valid[last] == 1) && head == last) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 85.6s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 616 SDtfs, 790 SDslu, 2950 SDs, 0 SdLazy, 5344 SolverSat, 583 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 423 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 87 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 119 PreInvPairs, 200 NumberOfFragments, 857 HoareAnnotationTreeSize, 119 FomulaSimplifications, 3039 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 26 FomulaSimplificationsInter, 3112 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 66.6s InterpolantComputationTime, 796 NumberOfCodeBlocks, 796 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 782 ConstructedInterpolants, 0 QuantifiedInterpolants, 209191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 168/263 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...