/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:32:43,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:32:43,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:32:43,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:32:43,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:32:43,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:32:43,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:32:43,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:32:43,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:32:43,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:32:43,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:32:43,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:32:43,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:32:43,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:32:43,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:32:43,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:32:43,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:32:43,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:32:43,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:32:43,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:32:43,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:32:43,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:32:43,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:32:43,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:32:43,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:32:43,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:32:43,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:32:43,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:32:43,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:32:43,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:32:43,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:32:43,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:32:43,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:32:43,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:32:43,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:32:43,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:32:43,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:32:43,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:32:43,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:32:43,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:32:43,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:32:43,360 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 [2020-09-25 05:32:43,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:32:43,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:32:43,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:32:43,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:32:43,389 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:32:43,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:32:43,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:32:43,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:32:43,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:32:43,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:32:43,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:32:43,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:32:43,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:32:43,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:32:43,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:32:43,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:32:43,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:32:43,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:32:43,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:32:43,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:32:43,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:32:43,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:32:43,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:32:43,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:32:43,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:32:43,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:32:43,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:32:43,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:32:43,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:32:43,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:32:43,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:32:43,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:32:43,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:32:43,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:32:43,897 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:32:43,901 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2020-09-25 05:32:43,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b21b20a52/3c43101c82754d4c9059e629f03a23a6/FLAG4bd4637a2 [2020-09-25 05:32:44,704 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:32:44,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2020-09-25 05:32:44,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b21b20a52/3c43101c82754d4c9059e629f03a23a6/FLAG4bd4637a2 [2020-09-25 05:32:44,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b21b20a52/3c43101c82754d4c9059e629f03a23a6 [2020-09-25 05:32:44,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:32:44,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:32:44,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:44,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:32:44,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:32:44,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:44" (1/1) ... [2020-09-25 05:32:44,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601c5801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:44, skipping insertion in model container [2020-09-25 05:32:44,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:32:44" (1/1) ... [2020-09-25 05:32:44,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:32:44,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:32:45,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:45,514 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:32:45,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:32:45,627 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:32:45,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45 WrapperNode [2020-09-25 05:32:45,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:32:45,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:32:45,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:32:45,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:32:45,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (1/1) ... [2020-09-25 05:32:45,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:32:45,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:32:45,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:32:45,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:32:45,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (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 [2020-09-25 05:32:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:32:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:32:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 05:32:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 05:32:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 05:32:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-09-25 05:32:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 05:32:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 05:32:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2020-09-25 05:32:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2020-09-25 05:32:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:32:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:32:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 05:32:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 05:32:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 05:32:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 05:32:45,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 05:32:45,798 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 05:32:45,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 05:32:45,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 05:32:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 05:32:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 05:32:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 05:32:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 05:32:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 05:32:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 05:32:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 05:32:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 05:32:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 05:32:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 05:32:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 05:32:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 05:32:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 05:32:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 05:32:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 05:32:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 05:32:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 05:32:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 05:32:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 05:32:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 05:32:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 05:32:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 05:32:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 05:32:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 05:32:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 05:32:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 05:32:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 05:32:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 05:32:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 05:32:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 05:32:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 05:32:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 05:32:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 05:32:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 05:32:45,804 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 05:32:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 05:32:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 05:32:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 05:32:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 05:32:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 05:32:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 05:32:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 05:32:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 05:32:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 05:32:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:32:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 05:32:45,806 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 05:32:45,807 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:32:45,807 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 05:32:45,807 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 05:32:45,807 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 05:32:45,807 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 05:32:45,807 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 05:32:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 05:32:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 05:32:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 05:32:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 05:32:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 05:32:45,808 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 05:32:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 05:32:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 05:32:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 05:32:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 05:32:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 05:32:45,809 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 05:32:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 05:32:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 05:32:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 05:32:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 05:32:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 05:32:45,810 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 05:32:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 05:32:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 05:32:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 05:32:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 05:32:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 05:32:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 05:32:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 05:32:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 05:32:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 05:32:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 05:32:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 05:32:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 05:32:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 05:32:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 05:32:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 05:32:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-09-25 05:32:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:32:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:32:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:32:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 05:32:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 05:32:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:32:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:32:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2020-09-25 05:32:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:32:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2020-09-25 05:32:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:32:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:32:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:32:46,265 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 05:32:46,430 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:32:46,430 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 05:32:46,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:46 BoogieIcfgContainer [2020-09-25 05:32:46,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:32:46,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:32:46,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:32:46,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:32:46,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:32:44" (1/3) ... [2020-09-25 05:32:46,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480477a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:46, skipping insertion in model container [2020-09-25 05:32:46,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:32:45" (2/3) ... [2020-09-25 05:32:46,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480477a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:32:46, skipping insertion in model container [2020-09-25 05:32:46,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:32:46" (3/3) ... [2020-09-25 05:32:46,446 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_update_all_reverse.i [2020-09-25 05:32:46,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:32:46,471 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:32:46,494 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:32:46,529 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:32:46,529 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:32:46,529 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:32:46,529 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:32:46,529 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:32:46,530 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:32:46,530 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:32:46,530 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:32:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-09-25 05:32:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 05:32:46,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:46,570 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] [2020-09-25 05:32:46,571 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:46,579 INFO L82 PathProgramCache]: Analyzing trace with hash 482514570, now seen corresponding path program 1 times [2020-09-25 05:32:46,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:46,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024824888] [2020-09-25 05:32:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:46,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:46,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:46,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 05:32:47,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:32:47,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-09-25 05:32:47,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 05:32:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:32:47,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:47,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:32:47,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:47,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:32:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:32:47,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:32:47,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:32:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 05:32:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:47,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:47,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:47,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:47,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:32:47,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:47,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:32:47,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:47,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:47,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024824888] [2020-09-25 05:32:47,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:47,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:32:47,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3835408] [2020-09-25 05:32:47,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:32:47,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:47,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:32:47,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:32:47,854 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-09-25 05:32:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:48,294 INFO L93 Difference]: Finished difference Result 230 states and 285 transitions. [2020-09-25 05:32:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:32:48,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-25 05:32:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:48,313 INFO L225 Difference]: With dead ends: 230 [2020-09-25 05:32:48,314 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 05:32:48,320 INFO L675 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 [2020-09-25 05:32:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 05:32:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 84. [2020-09-25 05:32:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 05:32:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2020-09-25 05:32:48,391 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 38 [2020-09-25 05:32:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:48,392 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2020-09-25 05:32:48,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:32:48,392 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2020-09-25 05:32:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 05:32:48,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:48,395 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] [2020-09-25 05:32:48,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:32:48,396 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:48,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:48,396 INFO L82 PathProgramCache]: Analyzing trace with hash -613399993, now seen corresponding path program 1 times [2020-09-25 05:32:48,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:48,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142680546] [2020-09-25 05:32:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:48,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:48,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:49,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:49,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 05:32:49,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:32:49,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1472 [2020-09-25 05:32:49,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:49,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:49,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 05:32:49,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:49,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 05:32:49,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:49,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:49,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:49,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:49,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:49,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:49,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:49,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:49,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:49,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:32:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:50,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:32:50,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 05:32:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:50,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:32:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 05:32:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:50,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:50,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:50,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:32:50,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:50,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:32:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:50,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:32:50,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142680546] [2020-09-25 05:32:50,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:50,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:32:50,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245920112] [2020-09-25 05:32:50,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:32:50,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:50,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:32:50,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:32:50,067 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 6 states. [2020-09-25 05:32:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:50,582 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2020-09-25 05:32:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:32:50,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 05:32:50,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:50,585 INFO L225 Difference]: With dead ends: 171 [2020-09-25 05:32:50,585 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 05:32:50,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:32:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 05:32:50,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 85. [2020-09-25 05:32:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 05:32:50,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-09-25 05:32:50,602 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 38 [2020-09-25 05:32:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:50,603 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-09-25 05:32:50,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:32:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-09-25 05:32:50,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 05:32:50,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:50,605 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:50,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:32:50,605 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:50,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:50,606 INFO L82 PathProgramCache]: Analyzing trace with hash -841200203, now seen corresponding path program 1 times [2020-09-25 05:32:50,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:50,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471067599] [2020-09-25 05:32:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:50,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:50,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 05:32:55,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:32:55,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:32:55,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:32:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:32:55,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 05:32:55,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:32:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:32:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:55,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:32:55,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:32:55,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:32:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:55,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:32:55,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:32:55,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:32:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:55,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:32:55,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:32:55,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 05:32:55,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:32:55,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:55,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 05:32:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:55,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:32:55,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 05:32:55,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:32:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:32:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:32:55,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:55,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 05:32:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:55,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:55,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:32:55,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 05:32:55,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:32:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 05:32:55,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:32:55,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:32:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:32:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:32:55,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:32:55,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:32:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:32:55,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471067599] [2020-09-25 05:32:55,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:32:55,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:32:55,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954898093] [2020-09-25 05:32:55,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:32:55,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:32:55,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:32:55,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:32:55,949 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 9 states. [2020-09-25 05:32:56,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:32:56,624 INFO L93 Difference]: Finished difference Result 181 states and 199 transitions. [2020-09-25 05:32:56,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:32:56,625 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 05:32:56,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:32:56,627 INFO L225 Difference]: With dead ends: 181 [2020-09-25 05:32:56,627 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 05:32:56,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:32:56,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 05:32:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 94. [2020-09-25 05:32:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 05:32:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2020-09-25 05:32:56,643 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 51 [2020-09-25 05:32:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:32:56,644 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2020-09-25 05:32:56,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:32:56,644 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2020-09-25 05:32:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 05:32:56,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:32:56,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:32:56,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:32:56,648 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:32:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:32:56,648 INFO L82 PathProgramCache]: Analyzing trace with hash 884026993, now seen corresponding path program 1 times [2020-09-25 05:32:56,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:32:56,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557981694] [2020-09-25 05:32:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:32:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:32:56,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:56,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:57,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:57,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:32:57,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:33:01,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:33:01,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 05:33:01,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:33:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:33:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:01,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:33:01,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:33:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:01,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:01,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:33:01,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:01,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:33:01,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 05:33:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 05:33:01,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:33:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 05:33:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:01,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:01,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:33:01,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:01,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:33:01,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:01,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:01,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 05:33:01,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:01,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:33:01,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557981694] [2020-09-25 05:33:01,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:01,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:33:01,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056925369] [2020-09-25 05:33:01,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:33:01,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:01,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:33:01,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:33:01,888 INFO L87 Difference]: Start difference. First operand 94 states and 100 transitions. Second operand 9 states. [2020-09-25 05:33:02,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:02,649 INFO L93 Difference]: Finished difference Result 190 states and 210 transitions. [2020-09-25 05:33:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:33:02,649 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-09-25 05:33:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:02,651 INFO L225 Difference]: With dead ends: 190 [2020-09-25 05:33:02,651 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 05:33:02,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-09-25 05:33:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 05:33:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 100. [2020-09-25 05:33:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-25 05:33:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2020-09-25 05:33:02,666 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 58 [2020-09-25 05:33:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:02,666 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2020-09-25 05:33:02,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:33:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2020-09-25 05:33:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 05:33:02,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:02,669 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:02,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:33:02,669 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:02,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:02,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1251789089, now seen corresponding path program 2 times [2020-09-25 05:33:02,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:02,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335990540] [2020-09-25 05:33:02,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:02,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:02,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:02,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:03,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:03,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:03,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:07,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:33:07,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:33:07,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 05:33:07,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:07,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:07,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:33:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 05:33:07,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:33:07,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:07,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:07,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:07,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:07,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:33:07,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:07,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:07,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:07,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:07,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:07,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:07,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:33:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:07,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:07,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 05:33:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:07,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:33:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:07,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 05:33:07,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:07,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 05:33:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:07,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:07,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:07,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 05:33:07,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:07,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:07,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:33:07,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 05:33:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:07,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:07,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 05:33:07,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:07,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:07,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:33:07,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 05:33:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:07,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:07,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:07,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:33:07,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:07,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:33:07,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:07,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 05:33:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:07,912 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 05:33:07,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335990540] [2020-09-25 05:33:07,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:33:07,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:33:07,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464035874] [2020-09-25 05:33:07,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:33:07,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:07,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:33:07,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:33:07,914 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand 9 states. [2020-09-25 05:33:08,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:08,404 INFO L93 Difference]: Finished difference Result 177 states and 192 transitions. [2020-09-25 05:33:08,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:33:08,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-09-25 05:33:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:08,405 INFO L225 Difference]: With dead ends: 177 [2020-09-25 05:33:08,406 INFO L226 Difference]: Without dead ends: 108 [2020-09-25 05:33:08,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:33:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-25 05:33:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2020-09-25 05:33:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 05:33:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2020-09-25 05:33:08,416 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 71 [2020-09-25 05:33:08,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:08,417 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2020-09-25 05:33:08,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:33:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2020-09-25 05:33:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 05:33:08,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:08,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:08,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:33:08,419 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:08,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:08,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1557630765, now seen corresponding path program 1 times [2020-09-25 05:33:08,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:08,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619241609] [2020-09-25 05:33:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:08,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:08,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:09,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:10,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 05:33:13,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:33:13,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 05:33:13,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:33:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 05:33:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:13,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:13,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:13,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:33:13,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:13,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:13,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:33:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:13,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:33:13,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-25 05:33:13,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:33:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:13,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 05:33:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:13,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:33:13,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:13,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:33:13,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:13,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:13,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 05:33:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:13,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:13,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 05:33:13,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:33:13,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:33:13,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:33:13,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 05:33:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:13,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:13,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:33:13,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:33:13,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:13,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:13,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 05:33:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:13,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:13,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:13,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:33:13,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:33:13,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:13,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 05:33:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 05:33:13,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619241609] [2020-09-25 05:33:13,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:13,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:33:13,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248329545] [2020-09-25 05:33:13,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:33:13,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:13,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:33:13,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:33:13,900 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand 9 states. [2020-09-25 05:33:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:14,338 INFO L93 Difference]: Finished difference Result 178 states and 193 transitions. [2020-09-25 05:33:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:33:14,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-09-25 05:33:14,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:14,340 INFO L225 Difference]: With dead ends: 178 [2020-09-25 05:33:14,341 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 05:33:14,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:33:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 05:33:14,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 105. [2020-09-25 05:33:14,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-25 05:33:14,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-09-25 05:33:14,352 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 89 [2020-09-25 05:33:14,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:14,352 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-09-25 05:33:14,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:33:14,353 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-09-25 05:33:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 05:33:14,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:14,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:14,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:33:14,355 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1758688301, now seen corresponding path program 1 times [2020-09-25 05:33:14,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:14,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820679439] [2020-09-25 05:33:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:14,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:14,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:14,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:15,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:18,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 05:33:19,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:33:19,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5146 [2020-09-25 05:33:19,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:33:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:19,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:33:19,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:19,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:19,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:19,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:33:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 05:33:19,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 05:33:19,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:33:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:33:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:33:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:19,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 05:33:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:33:19,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:19,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 05:33:19,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:33:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:19,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:33:19,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:19,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 05:33:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 05:33:19,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:19,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:33:19,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 05:33:19,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:19,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:19,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 05:33:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:33:19,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:19,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:33:19,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 05:33:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:19,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:19,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-25 05:33:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:19,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:19,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:19,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:33:19,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:19,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:33:19,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:19,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 05:33:19,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:19,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 05:33:19,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820679439] [2020-09-25 05:33:19,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:33:19,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 05:33:19,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932278931] [2020-09-25 05:33:19,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:33:19,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:33:19,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:33:19,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:33:19,928 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 10 states. [2020-09-25 05:33:20,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:33:20,383 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2020-09-25 05:33:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:33:20,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-09-25 05:33:20,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:33:20,386 INFO L225 Difference]: With dead ends: 194 [2020-09-25 05:33:20,386 INFO L226 Difference]: Without dead ends: 121 [2020-09-25 05:33:20,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-09-25 05:33:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-25 05:33:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2020-09-25 05:33:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 05:33:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 05:33:20,407 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 96 [2020-09-25 05:33:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:33:20,407 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 05:33:20,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:33:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 05:33:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 05:33:20,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:33:20,411 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:33:20,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:33:20,411 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:33:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:33:20,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1090353339, now seen corresponding path program 2 times [2020-09-25 05:33:20,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:33:20,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793888988] [2020-09-25 05:33:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:33:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:20,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:22,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:23,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:25,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:25,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:25,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:25,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 05:33:25,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:33:25,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5166 [2020-09-25 05:33:25,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:25,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-09-25 05:33:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:33:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 05:33:25,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:25,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:33:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:25,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:25,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:25,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:33:25,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:25,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:33:25,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:25,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:25,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:33:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:33:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:26,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 05:33:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:26,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:27,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:27,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 05:33:27,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:33:27,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1109 [2020-09-25 05:33:27,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:27,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 05:33:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 05:33:27,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:33:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 05:33:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:27,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:33:27,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:33:27,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:33:27,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:33:27,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 05:33:27,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:33:27,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:33:27,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:33:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:33:27,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:33:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:33:28,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 05:33:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:33:28,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking...