/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=0.2 --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 04:24:10,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:24:10,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:24:11,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:24:11,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:24:11,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:24:11,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:24:11,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:24:11,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:24:11,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:24:11,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:24:11,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:24:11,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:24:11,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:24:11,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:24:11,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:24:11,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:24:11,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:24:11,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:24:11,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:24:11,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:24:11,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:24:11,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:24:11,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:24:11,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:24:11,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:24:11,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:24:11,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:24:11,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:24:11,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:24:11,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:24:11,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:24:11,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:24:11,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:24:11,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:24:11,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:24:11,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:24:11,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:24:11,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:24:11,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:24:11,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:24:11,084 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 04:24:11,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:24:11,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:24:11,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:24:11,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:24:11,138 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:24:11,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:24:11,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:24:11,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:24:11,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:24:11,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:24:11,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:24:11,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:24:11,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:24:11,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:24:11,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:24:11,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:24:11,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:24:11,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:24:11,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:24:11,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:24:11,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:24:11,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:24:11,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:24:11,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:24:11,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:24:11,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:24:11,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:24:11,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:24:11,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:24:11,145 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:24:11,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:24:11,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:24:11,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:24:11,627 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:24:11,628 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:24:11,629 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2020-09-25 04:24:11,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1daa0619b/8c08902893604b57bd73acf4aefbdf17/FLAG5e0dcd7c4 [2020-09-25 04:24:12,370 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:24:12,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2n_update_all_reverse.i [2020-09-25 04:24:12,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1daa0619b/8c08902893604b57bd73acf4aefbdf17/FLAG5e0dcd7c4 [2020-09-25 04:24:12,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1daa0619b/8c08902893604b57bd73acf4aefbdf17 [2020-09-25 04:24:12,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:24:12,626 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:24:12,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:24:12,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:24:12,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:24:12,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:24:12" (1/1) ... [2020-09-25 04:24:12,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b50498e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:12, skipping insertion in model container [2020-09-25 04:24:12,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:24:12" (1/1) ... [2020-09-25 04:24:12,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:24:12,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:24:13,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:24:13,207 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:24:13,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:24:13,326 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:24:13,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13 WrapperNode [2020-09-25 04:24:13,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:24:13,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:24:13,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:24:13,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:24:13,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (1/1) ... [2020-09-25 04:24:13,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:24:13,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:24:13,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:24:13,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:24:13,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (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 04:24:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:24:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:24:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 04:24:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 04:24:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-25 04:24:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-09-25 04:24:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-25 04:24:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-25 04:24:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_get_data_at [2020-09-25 04:24:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_update_at [2020-09-25 04:24:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:24:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:24:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 04:24:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 04:24:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:24:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:24:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:24:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:24:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:24:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:24:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:24:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:24:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:24:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:24:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:24:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:24:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:24:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:24:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:24:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:24:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:24:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:24:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:24:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:24:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:24:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:24:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:24:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:24:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:24:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:24:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:24:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:24:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:24:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:24:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:24:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:24:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:24:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:24:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:24:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:24:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:24:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:24:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:24:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:24:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:24:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:24:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:24:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:24:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:24:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:24:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:24:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:24:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:24:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:24:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:24:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:24:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:24:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:24:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:24:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:24:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:24:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:24:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:24:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:24:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:24:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:24:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:24:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:24:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:24:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:24:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:24:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:24:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:24:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:24:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:24:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:24:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:24:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:24:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:24:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:24:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:24:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:24:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-25 04:24:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-25 04:24:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:24:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:24:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure sll_get_data_at [2020-09-25 04:24:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:24:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure sll_update_at [2020-09-25 04:24:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:24:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:24:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:24:13,951 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-25 04:24:14,132 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:24:14,132 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-25 04:24:14,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:24:14 BoogieIcfgContainer [2020-09-25 04:24:14,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:24:14,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:24:14,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:24:14,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:24:14,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:24:12" (1/3) ... [2020-09-25 04:24:14,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ba169b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:24:14, skipping insertion in model container [2020-09-25 04:24:14,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:24:13" (2/3) ... [2020-09-25 04:24:14,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ba169b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:24:14, skipping insertion in model container [2020-09-25 04:24:14,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:24:14" (3/3) ... [2020-09-25 04:24:14,148 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_update_all_reverse.i [2020-09-25 04:24:14,160 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:24:14,172 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:24:14,195 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:24:14,230 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:24:14,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:24:14,230 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:24:14,231 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:24:14,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:24:14,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:24:14,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:24:14,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:24:14,259 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-09-25 04:24:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 04:24:14,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:14,272 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 04:24:14,272 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:14,281 INFO L82 PathProgramCache]: Analyzing trace with hash 482514570, now seen corresponding path program 1 times [2020-09-25 04:24:14,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:14,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358456136] [2020-09-25 04:24:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:14,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:15,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:15,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 04:24:15,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:24:15,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-09-25 04:24:15,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:15,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 04:24:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:24:15,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:15,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:15,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:15,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:15,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:15,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:24:15,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:15,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:15,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:15,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:15,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:15,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:15,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:15,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:15,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:15,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:24:15,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:15,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:15,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:24:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:15,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:24:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:15,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:15,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:15,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:15,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:15,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 04:24:15,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:15,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:24:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:15,467 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 04:24:15,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358456136] [2020-09-25 04:24:15,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:15,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:24:15,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146643756] [2020-09-25 04:24:15,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:24:15,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:15,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:24:15,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:24:15,504 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-09-25 04:24:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:15,887 INFO L93 Difference]: Finished difference Result 230 states and 285 transitions. [2020-09-25 04:24:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:24:15,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-25 04:24:15,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:15,906 INFO L225 Difference]: With dead ends: 230 [2020-09-25 04:24:15,906 INFO L226 Difference]: Without dead ends: 128 [2020-09-25 04:24:15,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:24:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-25 04:24:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 84. [2020-09-25 04:24:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 04:24:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2020-09-25 04:24:15,990 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 38 [2020-09-25 04:24:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:15,991 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2020-09-25 04:24:15,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:24:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2020-09-25 04:24:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 04:24:15,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:15,993 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 04:24:15,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:24:15,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:15,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash -613399993, now seen corresponding path program 1 times [2020-09-25 04:24:15,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:15,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236354125] [2020-09-25 04:24:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:16,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:16,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:17,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 04:24:17,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:24:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1586 [2020-09-25 04:24:17,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:17,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:24:17,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 04:24:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 04:24:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:17,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:17,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:17,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:24:17,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:17,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:17,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:17,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:17,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:17,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:17,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:17,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 04:24:17,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:17,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:24:17,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:17,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 04:24:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:17,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:17,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:17,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:17,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:17,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:24:17,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:17,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:24:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:17,798 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 04:24:17,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236354125] [2020-09-25 04:24:17,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:17,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:24:17,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7342219] [2020-09-25 04:24:17,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:24:17,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:17,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:24:17,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:24:17,805 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 6 states. [2020-09-25 04:24:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:18,476 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2020-09-25 04:24:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:18,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-09-25 04:24:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:18,480 INFO L225 Difference]: With dead ends: 171 [2020-09-25 04:24:18,481 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 04:24:18,484 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 04:24:18,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 04:24:18,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 85. [2020-09-25 04:24:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 04:24:18,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2020-09-25 04:24:18,512 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 38 [2020-09-25 04:24:18,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:18,512 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2020-09-25 04:24:18,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:24:18,512 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2020-09-25 04:24:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 04:24:18,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:18,521 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 04:24:18,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:24:18,523 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:18,524 INFO L82 PathProgramCache]: Analyzing trace with hash -841200203, now seen corresponding path program 1 times [2020-09-25 04:24:18,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:18,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820382209] [2020-09-25 04:24:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:18,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:18,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:18,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:18,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:20,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 04:24:23,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:24:23,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 04:24:23,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:24:23,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:23,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:23,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:23,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:23,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:23,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:23,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:23,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:23,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:23,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 04:24:23,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:24:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:24:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 04:24:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:23,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:23,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:24:23,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 04:24:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:23,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 04:24:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:23,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:23,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:23,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:23,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:24:23,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:23,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:24:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:23,737 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 04:24:23,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820382209] [2020-09-25 04:24:23,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:23,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:24:23,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062557593] [2020-09-25 04:24:23,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:24:23,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:23,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:24:23,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:24:23,739 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 8 states. [2020-09-25 04:24:24,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:24,116 INFO L93 Difference]: Finished difference Result 147 states and 156 transitions. [2020-09-25 04:24:24,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:24,116 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-25 04:24:24,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:24,118 INFO L225 Difference]: With dead ends: 147 [2020-09-25 04:24:24,118 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 04:24:24,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:24:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 04:24:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 86. [2020-09-25 04:24:24,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-25 04:24:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2020-09-25 04:24:24,128 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 51 [2020-09-25 04:24:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:24,128 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2020-09-25 04:24:24,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:24:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2020-09-25 04:24:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 04:24:24,130 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:24,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:24,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:24:24,130 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:24,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:24,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1957255427, now seen corresponding path program 1 times [2020-09-25 04:24:24,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:24,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457207322] [2020-09-25 04:24:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:24,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:24,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:24,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:24,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:29,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 04:24:29,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:24:29,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 04:24:29,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:29,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:29,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 04:24:29,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:29,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:29,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:29,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:29,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:24:29,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:29,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:29,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:29,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:29,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:29,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:24:29,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 04:24:29,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:29,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:24:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:24:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:29,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:29,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:24:29,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:29,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:24:29,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:29,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:29,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:29,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 04:24:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:29,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:29,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:29,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:24:29,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:29,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:29,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:24:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 04:24:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:29,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:29,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:29,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:24:29,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:24:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:29,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:29,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:24:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:24:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:24:29,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457207322] [2020-09-25 04:24:29,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:24:29,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:24:29,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643350587] [2020-09-25 04:24:29,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:24:29,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:29,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:24:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:29,570 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 9 states. [2020-09-25 04:24:30,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:30,013 INFO L93 Difference]: Finished difference Result 139 states and 149 transitions. [2020-09-25 04:24:30,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:24:30,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 04:24:30,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:30,016 INFO L225 Difference]: With dead ends: 139 [2020-09-25 04:24:30,016 INFO L226 Difference]: Without dead ends: 113 [2020-09-25 04:24:30,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-09-25 04:24:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-25 04:24:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 95. [2020-09-25 04:24:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-25 04:24:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 101 transitions. [2020-09-25 04:24:30,028 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 101 transitions. Word has length 69 [2020-09-25 04:24:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:30,028 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 101 transitions. [2020-09-25 04:24:30,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:24:30,029 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 101 transitions. [2020-09-25 04:24:30,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 04:24:30,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:30,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:24:30,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:24:30,032 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:30,032 INFO L82 PathProgramCache]: Analyzing trace with hash 281898851, now seen corresponding path program 1 times [2020-09-25 04:24:30,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:30,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438467996] [2020-09-25 04:24:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:30,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:35,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 04:24:35,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:24:35,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 04:24:35,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:35,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:35,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 04:24:35,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:35,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:35,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:35,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:35,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:35,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:35,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:35,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:35,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:24:35,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:35,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 04:24:35,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:35,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:24:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:35,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:24:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:35,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:35,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:24:35,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:24:35,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:35,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:35,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 04:24:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:35,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:35,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:35,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:35,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:24:35,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:35,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:35,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:35,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:24:35,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:35,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 04:24:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:35,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:35,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:35,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:24:35,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:24:35,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:35,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:35,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:24:35,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:35,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:24:35,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438467996] [2020-09-25 04:24:35,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:35,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 04:24:35,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074459943] [2020-09-25 04:24:35,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:24:35,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:35,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:24:35,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:35,478 INFO L87 Difference]: Start difference. First operand 95 states and 101 transitions. Second operand 9 states. [2020-09-25 04:24:35,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:35,919 INFO L93 Difference]: Finished difference Result 146 states and 158 transitions. [2020-09-25 04:24:35,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:24:35,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-09-25 04:24:35,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:35,921 INFO L225 Difference]: With dead ends: 146 [2020-09-25 04:24:35,922 INFO L226 Difference]: Without dead ends: 110 [2020-09-25 04:24:35,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:24:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-25 04:24:35,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 101. [2020-09-25 04:24:35,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 04:24:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2020-09-25 04:24:35,944 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 76 [2020-09-25 04:24:35,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:35,945 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2020-09-25 04:24:35,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:24:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2020-09-25 04:24:35,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 04:24:35,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:35,946 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 04:24:35,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:24:35,947 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:35,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:35,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1557630765, now seen corresponding path program 2 times [2020-09-25 04:24:35,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:35,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428161451] [2020-09-25 04:24:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:35,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:36,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:36,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:36,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:40,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:40,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 04:24:40,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:24:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 04:24:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:40,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 04:24:40,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:41,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:41,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:41,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:41,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:41,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:41,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:41,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:24:41,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 04:24:41,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:41,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:41,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:24:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:24:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:41,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:24:41,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:24:41,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:41,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:41,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:41,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 04:24:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:41,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:41,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:41,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 04:24:41,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:41,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:24:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:24:41,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:24:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:41,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-25 04:24:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:41,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:41,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:24:41,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:41,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 04:24:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:41,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 04:24:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:41,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:41,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:24:41,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:41,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:24:41,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:41,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:24:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:41,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:41,393 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 04:24:41,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428161451] [2020-09-25 04:24:41,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:41,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 04:24:41,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487663305] [2020-09-25 04:24:41,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:24:41,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:41,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:24:41,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:24:41,397 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand 9 states. [2020-09-25 04:24:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:41,894 INFO L93 Difference]: Finished difference Result 178 states and 193 transitions. [2020-09-25 04:24:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:24:41,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-09-25 04:24:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:41,896 INFO L225 Difference]: With dead ends: 178 [2020-09-25 04:24:41,896 INFO L226 Difference]: Without dead ends: 119 [2020-09-25 04:24:41,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:24:41,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-25 04:24:41,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 105. [2020-09-25 04:24:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-25 04:24:41,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-09-25 04:24:41,913 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 89 [2020-09-25 04:24:41,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:41,914 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-09-25 04:24:41,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:24:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-09-25 04:24:41,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 04:24:41,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:41,916 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 04:24:41,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:24:41,917 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:41,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1758688301, now seen corresponding path program 1 times [2020-09-25 04:24:41,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:41,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359183486] [2020-09-25 04:24:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:41,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:42,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:42,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:45,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:46,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:46,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-25 04:24:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 04:24:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-09-25 04:24:47,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:24:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:24:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:24:47,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:47,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 04:24:47,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:47,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 04:24:47,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:24:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:24:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:24:47,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:47,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:24:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:24:47,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:47,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 04:24:47,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:24:47,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:47,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:24:47,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:47,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 04:24:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:24:47,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:47,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:24:47,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:47,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 04:24:47,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:47,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:47,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-25 04:24:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 04:24:47,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:47,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 04:24:47,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 04:24:47,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:47,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:47,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-25 04:24:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:47,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:47,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 04:24:47,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:47,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:24:47,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:47,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:47,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:24:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:47,478 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 04:24:47,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359183486] [2020-09-25 04:24:47,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:24:47,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 04:24:47,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258594828] [2020-09-25 04:24:47,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:24:47,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:24:47,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:24:47,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:24:47,482 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 10 states. [2020-09-25 04:24:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:24:47,834 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2020-09-25 04:24:47,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 04:24:47,834 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-09-25 04:24:47,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:24:47,836 INFO L225 Difference]: With dead ends: 194 [2020-09-25 04:24:47,836 INFO L226 Difference]: Without dead ends: 121 [2020-09-25 04:24:47,837 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 04:24:47,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-25 04:24:47,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2020-09-25 04:24:47,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 04:24:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-25 04:24:47,847 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 96 [2020-09-25 04:24:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:24:47,847 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-25 04:24:47,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:24:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-25 04:24:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 04:24:47,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:24:47,849 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 04:24:47,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:24:47,849 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:24:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:24:47,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1090353339, now seen corresponding path program 2 times [2020-09-25 04:24:47,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:24:47,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180638047] [2020-09-25 04:24:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:24:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:50,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:50,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:50,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:52,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:52,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:52,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:52,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 04:24:52,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:24:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:24:52,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:52,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-09-25 04:24:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 04:24:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 04:24:52,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:53,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:24:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:53,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:53,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:53,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:24:53,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:24:53,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:53,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:24:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:24:53,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:24:53,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:24:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:53,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:53,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:54,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:54,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 04:24:54,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:24:54,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-09-25 04:24:54,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:54,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:54,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:24:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 04:24:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:55,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 04:24:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:55,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:55,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:55,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:24:55,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:55,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 04:24:55,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:55,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:24:55,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:24:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:24:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 04:24:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:55,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:55,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:55,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:24:55,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 04:24:55,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:55,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:55,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:24:55,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:24:55,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:24:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:24:55,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-25 04:24:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:24:55,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:24:55,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:24:55,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:24:55,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:24:55,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 04:24:55,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:24:55,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:24:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:24:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:24:55,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:24:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1