/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=LOWLEXORDER --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-ext3-properties/sll_nondet_insert-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:38:46,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:38:46,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:38:46,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:38:46,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:38:46,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:38:46,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:38:46,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:38:46,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:38:46,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:38:46,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:38:46,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:38:46,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:38:46,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:38:46,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:38:46,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:38:46,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:38:46,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:38:46,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:38:46,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:38:46,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:38:46,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:38:46,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:38:46,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:38:46,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:38:46,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:38:46,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:38:46,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:38:46,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:38:46,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:38:46,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:38:46,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:38:46,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:38:46,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:38:46,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:38:46,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:38:46,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:38:46,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:38:46,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:38:46,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:38:46,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:38:46,453 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 [2020-09-24 21:38:46,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:38:46,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:38:46,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:38:46,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:38:46,483 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:38:46,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:38:46,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:38:46,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:38:46,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:38:46,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:38:46,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:38:46,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:38:46,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:38:46,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:38:46,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:38:46,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:38:46,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:38:46,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:38:46,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:38:46,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:38:46,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:38:46,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:38:46,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:38:46,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:38:46,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:38:46,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:38:46,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:38:46,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:38:46,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:38:46,490 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:38:46,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:38:46,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:38:46,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:38:46,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:38:46,973 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:38:46,974 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-24 21:38:47,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fe780304/9f5f4d300e5947f195c9858d837cfff8/FLAG585d2416c [2020-09-24 21:38:47,731 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:38:47,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext3-properties/sll_nondet_insert-1.i [2020-09-24 21:38:47,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fe780304/9f5f4d300e5947f195c9858d837cfff8/FLAG585d2416c [2020-09-24 21:38:47,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fe780304/9f5f4d300e5947f195c9858d837cfff8 [2020-09-24 21:38:48,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:38:48,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:38:48,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:38:48,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:38:48,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:38:48,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:38:47" (1/1) ... [2020-09-24 21:38:48,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8d6227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48, skipping insertion in model container [2020-09-24 21:38:48,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:38:47" (1/1) ... [2020-09-24 21:38:48,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:38:48,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:38:48,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:38:48,613 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:38:48,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:38:48,724 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:38:48,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48 WrapperNode [2020-09-24 21:38:48,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:38:48,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:38:48,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:38:48,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:38:48,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (1/1) ... [2020-09-24 21:38:48,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:38:48,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:38:48,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:38:48,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:38:48,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (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 [2020-09-24 21:38:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:38:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:38:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 21:38:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 21:38:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-24 21:38:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-09-24 21:38:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2020-09-24 21:38:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-09-24 21:38:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-09-24 21:38:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2020-09-24 21:38:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:38:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:38:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:38:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 21:38:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 21:38:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 21:38:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 21:38:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 21:38:48,887 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 21:38:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 21:38:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 21:38:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 21:38:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 21:38:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 21:38:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 21:38:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 21:38:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 21:38:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 21:38:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 21:38:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 21:38:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 21:38:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 21:38:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 21:38:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 21:38:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 21:38:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 21:38:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 21:38:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 21:38:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 21:38:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 21:38:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 21:38:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 21:38:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 21:38:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 21:38:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 21:38:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 21:38:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 21:38:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 21:38:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 21:38:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 21:38:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 21:38:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 21:38:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 21:38:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 21:38:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 21:38:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 21:38:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 21:38:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 21:38:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 21:38:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:38:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 21:38:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 21:38:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:38:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 21:38:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 21:38:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 21:38:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 21:38:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 21:38:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:38:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 21:38:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 21:38:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 21:38:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 21:38:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 21:38:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 21:38:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 21:38:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 21:38:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 21:38:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 21:38:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 21:38:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 21:38:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 21:38:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 21:38:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 21:38:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 21:38:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 21:38:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 21:38:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 21:38:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 21:38:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 21:38:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 21:38:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 21:38:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 21:38:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 21:38:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 21:38:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 21:38:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 21:38:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 21:38:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 21:38:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 21:38:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-24 21:38:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-09-24 21:38:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:38:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:38:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2020-09-24 21:38:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:38:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-09-24 21:38:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:38:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-09-24 21:38:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2020-09-24 21:38:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:38:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:38:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 21:38:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:38:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:38:49,266 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-24 21:38:49,592 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:38:49,593 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 21:38:49,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:38:49 BoogieIcfgContainer [2020-09-24 21:38:49,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:38:49,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:38:49,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:38:49,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:38:49,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:38:47" (1/3) ... [2020-09-24 21:38:49,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e1ddeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:38:49, skipping insertion in model container [2020-09-24 21:38:49,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:48" (2/3) ... [2020-09-24 21:38:49,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e1ddeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:38:49, skipping insertion in model container [2020-09-24 21:38:49,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:38:49" (3/3) ... [2020-09-24 21:38:49,609 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2020-09-24 21:38:49,621 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:38:49,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:38:49,657 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:38:49,691 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:38:49,691 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:38:49,692 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:38:49,692 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:38:49,692 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:38:49,692 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:38:49,692 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:38:49,693 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:38:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-09-24 21:38:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 21:38:49,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:49,735 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:49,736 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:49,745 INFO L82 PathProgramCache]: Analyzing trace with hash 422432984, now seen corresponding path program 1 times [2020-09-24 21:38:49,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:49,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624883157] [2020-09-24 21:38:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:49,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:50,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 21:38:50,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:38:50,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-09-24 21:38:50,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:38:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:38:50,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:50,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:38:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:38:50,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:38:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:50,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:38:50,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:38:50,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:38:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:50,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:38:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:50,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:50,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:38:50,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:50,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:38:50,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:38:50,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:50,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:50,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:38:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:50,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:50,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:38:50,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:50,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:38:50,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:38:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 21:38:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:50,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:50,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:50,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:38:50,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:50,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:38:50,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:38:50,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:50,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 21:38:50,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624883157] [2020-09-24 21:38:50,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:38:50,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:38:50,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566122637] [2020-09-24 21:38:50,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:38:50,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:50,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:38:50,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:38:50,707 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 4 states. [2020-09-24 21:38:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:51,124 INFO L93 Difference]: Finished difference Result 289 states and 337 transitions. [2020-09-24 21:38:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 21:38:51,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-09-24 21:38:51,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:51,143 INFO L225 Difference]: With dead ends: 289 [2020-09-24 21:38:51,143 INFO L226 Difference]: Without dead ends: 123 [2020-09-24 21:38:51,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:38:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-24 21:38:51,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2020-09-24 21:38:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-24 21:38:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-09-24 21:38:51,219 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 54 [2020-09-24 21:38:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:51,220 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-09-24 21:38:51,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:38:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-09-24 21:38:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 21:38:51,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:51,225 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 21:38:51,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:38:51,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:51,227 INFO L82 PathProgramCache]: Analyzing trace with hash 333013349, now seen corresponding path program 1 times [2020-09-24 21:38:51,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:51,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509499184] [2020-09-24 21:38:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:51,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:51,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:52,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:52,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:52,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:52,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 21:38:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 21:38:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 21:38:56,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:38:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:38:56,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:38:56,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:56,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:56,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:56,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:38:56,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:56,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:38:56,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:56,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:38:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:56,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:56,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:56,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 21:38:56,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:38:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:38:56,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:38:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:56,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-24 21:38:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:56,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:38:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:38:56,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 21:38:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:56,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 21:38:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:56,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:56,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:56,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:38:56,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:38:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:56,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 21:38:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:56,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:56,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:56,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:38:56,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:56,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:38:56,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:56,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:38:56,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:56,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:38:56,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509499184] [2020-09-24 21:38:56,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:38:56,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 21:38:56,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470475160] [2020-09-24 21:38:56,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:38:56,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:56,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:38:56,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:38:56,609 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 9 states. [2020-09-24 21:38:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:57,688 INFO L93 Difference]: Finished difference Result 275 states and 301 transitions. [2020-09-24 21:38:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:38:57,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-24 21:38:57,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:57,694 INFO L225 Difference]: With dead ends: 275 [2020-09-24 21:38:57,694 INFO L226 Difference]: Without dead ends: 169 [2020-09-24 21:38:57,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:38:57,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-09-24 21:38:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 134. [2020-09-24 21:38:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-24 21:38:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 145 transitions. [2020-09-24 21:38:57,735 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 145 transitions. Word has length 69 [2020-09-24 21:38:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:57,735 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 145 transitions. [2020-09-24 21:38:57,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:38:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 145 transitions. [2020-09-24 21:38:57,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 21:38:57,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:57,743 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 21:38:57,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:38:57,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:57,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:57,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1735568478, now seen corresponding path program 1 times [2020-09-24 21:38:57,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:57,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522097358] [2020-09-24 21:38:57,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:57,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:57,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:57,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:58,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:58,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:58,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:02,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:02,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:39:02,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:39:02,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:39:02,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:02,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:39:02,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:39:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 21:39:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:02,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:39:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:02,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:02,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:02,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:39:02,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:02,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:39:02,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:02,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:02,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:02,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:02,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:39:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:02,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:02,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:39:02,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:39:02,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:39:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:02,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:39:02,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:02,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:39:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:02,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:02,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:02,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:39:02,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:02,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:39:02,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:39:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:39:02,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:39:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:39:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:03,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:03,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:03,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:39:03,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:39:03,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:39:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:03,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:03,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-24 21:39:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:03,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:03,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:03,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:39:03,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:39:03,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:39:03,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:03,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:39:03,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522097358] [2020-09-24 21:39:03,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:39:03,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 21:39:03,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902645529] [2020-09-24 21:39:03,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:39:03,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:39:03,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:39:03,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:39:03,083 INFO L87 Difference]: Start difference. First operand 134 states and 145 transitions. Second operand 12 states. [2020-09-24 21:39:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:39:03,956 INFO L93 Difference]: Finished difference Result 292 states and 324 transitions. [2020-09-24 21:39:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:39:03,957 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-09-24 21:39:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:39:03,961 INFO L225 Difference]: With dead ends: 292 [2020-09-24 21:39:03,961 INFO L226 Difference]: Without dead ends: 206 [2020-09-24 21:39:03,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2020-09-24 21:39:03,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-09-24 21:39:03,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 154. [2020-09-24 21:39:03,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-24 21:39:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 168 transitions. [2020-09-24 21:39:03,993 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 168 transitions. Word has length 71 [2020-09-24 21:39:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:39:03,994 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 168 transitions. [2020-09-24 21:39:03,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:39:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 168 transitions. [2020-09-24 21:39:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 21:39:03,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:39:03,997 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:39:03,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:39:03,998 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:39:03,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:39:03,998 INFO L82 PathProgramCache]: Analyzing trace with hash -472966004, now seen corresponding path program 1 times [2020-09-24 21:39:03,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:39:03,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121417888] [2020-09-24 21:39:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:39:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:04,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:05,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:05,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:05,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:06,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:06,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:06,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:06,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:06,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:06,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:07,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:07,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:07,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:08,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:08,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:08,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:08,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:08,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:09,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-24 21:39:09,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 27 [2020-09-24 21:39:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 21:39:09,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:39:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:39:09,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:39:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:09,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:39:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:09,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:09,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:39:09,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:09,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:39:09,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:09,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:09,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:09,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:39:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:09,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:09,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:39:09,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:39:09,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-24 21:39:09,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:09,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:39:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:39:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:39:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 21:39:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:09,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:39:09,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:09,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:39:09,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:09,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:09,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 21:39:09,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:09,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:09,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 21:39:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:09,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:09,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:39:09,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:09,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:39:09,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:39:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:09,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 21:39:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:09,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:09,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:09,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:39:09,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:09,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:39:09,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:39:09,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:09,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:39:09,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121417888] [2020-09-24 21:39:09,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:39:09,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 21:39:09,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720799211] [2020-09-24 21:39:09,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:39:09,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:39:09,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:39:09,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:39:09,435 INFO L87 Difference]: Start difference. First operand 154 states and 168 transitions. Second operand 11 states. [2020-09-24 21:39:10,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:39:10,496 INFO L93 Difference]: Finished difference Result 382 states and 424 transitions. [2020-09-24 21:39:10,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:39:10,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-09-24 21:39:10,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:39:10,500 INFO L225 Difference]: With dead ends: 382 [2020-09-24 21:39:10,500 INFO L226 Difference]: Without dead ends: 244 [2020-09-24 21:39:10,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=219, Invalid=431, Unknown=0, NotChecked=0, Total=650 [2020-09-24 21:39:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-09-24 21:39:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 161. [2020-09-24 21:39:10,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-24 21:39:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 175 transitions. [2020-09-24 21:39:10,545 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 175 transitions. Word has length 79 [2020-09-24 21:39:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:39:10,546 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 175 transitions. [2020-09-24 21:39:10,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:39:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 175 transitions. [2020-09-24 21:39:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 21:39:10,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:39:10,553 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 21:39:10,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:39:10,554 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:39:10,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:39:10,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1820928426, now seen corresponding path program 1 times [2020-09-24 21:39:10,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:39:10,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159717672] [2020-09-24 21:39:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:39:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:10,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:10,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:10,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:11,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:13,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:13,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:15,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:15,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 21:39:15,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 21:39:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:39:15,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:39:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:39:15,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 21:39:15,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:39:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:15,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:15,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:39:15,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:15,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:39:15,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:15,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:15,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:15,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:39:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:15,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:15,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:15,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:39:15,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 21:39:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:39:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:39:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:39:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:15,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:15,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:15,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 21:39:15,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 21:39:15,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:39:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:39:15,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 21:39:15,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:15,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:39:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:15,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:15,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:15,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:39:15,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:39:15,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:15,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:15,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:39:15,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:15,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-24 21:39:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:15,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:15,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:15,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:39:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:39:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:15,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:39:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:39:15,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159717672] [2020-09-24 21:39:15,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:39:15,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 21:39:15,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701009198] [2020-09-24 21:39:15,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:39:15,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:39:15,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:39:15,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:39:15,981 INFO L87 Difference]: Start difference. First operand 161 states and 175 transitions. Second operand 14 states. [2020-09-24 21:39:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:39:16,879 INFO L93 Difference]: Finished difference Result 307 states and 340 transitions. [2020-09-24 21:39:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 21:39:16,880 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-09-24 21:39:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:39:16,882 INFO L225 Difference]: With dead ends: 307 [2020-09-24 21:39:16,882 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 21:39:16,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=669, Unknown=0, NotChecked=0, Total=812 [2020-09-24 21:39:16,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 21:39:16,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 170. [2020-09-24 21:39:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-24 21:39:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 185 transitions. [2020-09-24 21:39:16,897 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 185 transitions. Word has length 80 [2020-09-24 21:39:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:39:16,897 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 185 transitions. [2020-09-24 21:39:16,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:39:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 185 transitions. [2020-09-24 21:39:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-09-24 21:39:16,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:39:16,899 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:39:16,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:39:16,899 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:39:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:39:16,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1107353865, now seen corresponding path program 2 times [2020-09-24 21:39:16,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:39:16,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500294673] [2020-09-24 21:39:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:39:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:17,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:17,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:17,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:18,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:21,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:21,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 21:39:21,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:39:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 21:39:21,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:39:21,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:39:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 21:39:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:39:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:21,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:21,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:21,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:39:21,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:21,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:39:21,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:21,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:21,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:21,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:21,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:39:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:21,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:22,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:22,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:39:22,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:22,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 21:39:22,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:39:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:22,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 21:39:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:22,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 21:39:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:22,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:22,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:39:22,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:22,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:39:22,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:39:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:39:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:39:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:22,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-24 21:39:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:22,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:22,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:22,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:39:22,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:22,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:39:22,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:22,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:22,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:39:22,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:22,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:39:22,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-24 21:39:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:22,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:22,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:22,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:39:22,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:22,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:39:22,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:39:22,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:22,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:39:22,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500294673] [2020-09-24 21:39:22,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:39:22,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 21:39:22,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545387216] [2020-09-24 21:39:22,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 21:39:22,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:39:22,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 21:39:22,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:39:22,288 INFO L87 Difference]: Start difference. First operand 170 states and 185 transitions. Second operand 14 states. [2020-09-24 21:39:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:39:23,893 INFO L93 Difference]: Finished difference Result 372 states and 418 transitions. [2020-09-24 21:39:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:39:23,894 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-09-24 21:39:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:39:23,895 INFO L225 Difference]: With dead ends: 372 [2020-09-24 21:39:23,898 INFO L226 Difference]: Without dead ends: 252 [2020-09-24 21:39:23,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 21:39:23,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-24 21:39:23,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 187. [2020-09-24 21:39:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-09-24 21:39:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 204 transitions. [2020-09-24 21:39:23,924 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 204 transitions. Word has length 81 [2020-09-24 21:39:23,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:39:23,924 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 204 transitions. [2020-09-24 21:39:23,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 21:39:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 204 transitions. [2020-09-24 21:39:23,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 21:39:23,929 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:39:23,929 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-24 21:39:23,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:39:23,929 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:39:23,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:39:23,930 INFO L82 PathProgramCache]: Analyzing trace with hash -574415326, now seen corresponding path program 2 times [2020-09-24 21:39:23,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:39:23,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599486828] [2020-09-24 21:39:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:39:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:23,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:24,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:24,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:24,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:24,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:24,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:28,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:28,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-09-24 21:39:28,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:39:28,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:39:28,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:28,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:39:28,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:39:28,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 21:39:28,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:39:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:29,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:29,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:39:29,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:29,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:39:29,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:29,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:29,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:29,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:29,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:29,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-24 21:39:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:29,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:29,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:39:29,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:39:29,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:29,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:39:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:39:29,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:29,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:39:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:39:29,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:39:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 21:39:29,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:39:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:39:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:39:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:29,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 21:39:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:29,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:29,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:39:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:29,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-24 21:39:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:29,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:29,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:39:29,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:39:29,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:39:29,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:39:29,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:39:29,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:39:29,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 21:39:29,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:39:29,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:39:29,744 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:39:29,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599486828] [2020-09-24 21:39:29,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:39:29,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-24 21:39:29,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076515866] [2020-09-24 21:39:29,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 21:39:29,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:39:29,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 21:39:29,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-09-24 21:39:29,746 INFO L87 Difference]: Start difference. First operand 187 states and 204 transitions. Second operand 22 states. [2020-09-24 21:39:33,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:39:33,122 INFO L93 Difference]: Finished difference Result 396 states and 442 transitions. [2020-09-24 21:39:33,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-24 21:39:33,123 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 89 [2020-09-24 21:39:33,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:39:33,128 INFO L225 Difference]: With dead ends: 396 [2020-09-24 21:39:33,128 INFO L226 Difference]: Without dead ends: 305 [2020-09-24 21:39:33,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=446, Invalid=3094, Unknown=0, NotChecked=0, Total=3540 [2020-09-24 21:39:33,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-09-24 21:39:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2020-09-24 21:39:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-24 21:39:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 263 transitions. [2020-09-24 21:39:33,159 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 263 transitions. Word has length 89 [2020-09-24 21:39:33,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:39:33,160 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 263 transitions. [2020-09-24 21:39:33,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-24 21:39:33,160 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 263 transitions. [2020-09-24 21:39:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 21:39:33,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:39:33,162 INFO L422 BasicCegarLoop]: trace histogram [4, 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] [2020-09-24 21:39:33,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:39:33,162 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:39:33,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:39:33,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1024568589, now seen corresponding path program 3 times [2020-09-24 21:39:33,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:39:33,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637710740] [2020-09-24 21:39:33,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:39:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:39:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:33,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:39:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking...