/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:22:15,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:22:15,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:22:15,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:22:15,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:22:15,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:22:15,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:22:15,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:22:15,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:22:15,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:22:15,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:22:15,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:22:15,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:22:15,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:22:15,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:22:15,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:22:15,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:22:15,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:22:15,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:22:15,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:22:15,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:22:15,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:22:15,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:22:15,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:22:15,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:22:15,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:22:15,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:22:15,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:22:15,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:22:15,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:22:15,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:22:15,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:22:15,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:22:15,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:22:15,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:22:15,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:22:15,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:22:15,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:22:15,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:22:15,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:22:15,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:22:15,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:22:15,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:22:15,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:22:15,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:22:15,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:22:15,945 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:22:15,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:22:15,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:22:15,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:22:15,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:22:15,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:22:15,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:22:15,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:22:15,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:22:15,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:22:15,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:22:15,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:22:15,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:22:15,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:22:15,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:22:15,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:22:15,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:22:15,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:15,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:22:15,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:22:15,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:22:15,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:22:15,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:22:15,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:22:15,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:22:15,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:22:16,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:22:16,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:22:16,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:22:16,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:22:16,420 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:22:16,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 04:22:16,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6b8a19e/2734c0a6ca7648f8bdb1dc419ed0e87f/FLAG55b9205df [2020-09-25 04:22:17,222 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:22:17,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 04:22:17,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6b8a19e/2734c0a6ca7648f8bdb1dc419ed0e87f/FLAG55b9205df [2020-09-25 04:22:17,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b6b8a19e/2734c0a6ca7648f8bdb1dc419ed0e87f [2020-09-25 04:22:17,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:22:17,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:22:17,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:17,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:22:17,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:22:17,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:17" (1/1) ... [2020-09-25 04:22:17,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391177e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:17, skipping insertion in model container [2020-09-25 04:22:17,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:22:17" (1/1) ... [2020-09-25 04:22:17,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:22:17,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:22:18,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:18,093 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:22:18,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:22:18,230 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:22:18,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18 WrapperNode [2020-09-25 04:22:18,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:22:18,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:22:18,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:22:18,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:22:18,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... [2020-09-25 04:22:18,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:22:18,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:22:18,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:22:18,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:22:18,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:22:18,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:22:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:22:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 04:22:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 04:22:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 04:22:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 04:22:18,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 04:22:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 04:22:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 04:22:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 04:22:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 04:22:18,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 04:22:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 04:22:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 04:22:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 04:22:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 04:22:18,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 04:22:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 04:22:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 04:22:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 04:22:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 04:22:18,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:22:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:22:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 04:22:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 04:22:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 04:22:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 04:22:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 04:22:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 04:22:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 04:22:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 04:22:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 04:22:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 04:22:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 04:22:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 04:22:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 04:22:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 04:22:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 04:22:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 04:22:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 04:22:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 04:22:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 04:22:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 04:22:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 04:22:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 04:22:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 04:22:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 04:22:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 04:22:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 04:22:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 04:22:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 04:22:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 04:22:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 04:22:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 04:22:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 04:22:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 04:22:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 04:22:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 04:22:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 04:22:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 04:22:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 04:22:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 04:22:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 04:22:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 04:22:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 04:22:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 04:22:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 04:22:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 04:22:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 04:22:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:22:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 04:22:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 04:22:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:22:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 04:22:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 04:22:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 04:22:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 04:22:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 04:22:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 04:22:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 04:22:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 04:22:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 04:22:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 04:22:18,422 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 04:22:18,423 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 04:22:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 04:22:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 04:22:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 04:22:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 04:22:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 04:22:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 04:22:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 04:22:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 04:22:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 04:22:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 04:22:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 04:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 04:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 04:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 04:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 04:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:22:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:22:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 04:22:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 04:22:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:22:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 04:22:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 04:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 04:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 04:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 04:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 04:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 04:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 04:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 04:22:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 04:22:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:22:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:22:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:22:19,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:19,305 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 04:22:19,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:19 BoogieIcfgContainer [2020-09-25 04:22:19,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:19,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:19,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:19,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:19,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:22:17" (1/3) ... [2020-09-25 04:22:19,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa76cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:19, skipping insertion in model container [2020-09-25 04:22:19,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:22:18" (2/3) ... [2020-09-25 04:22:19,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa76cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:19, skipping insertion in model container [2020-09-25 04:22:19,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:19" (3/3) ... [2020-09-25 04:22:19,322 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-09-25 04:22:19,334 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:19,345 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:19,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:19,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:19,398 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:19,398 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:19,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:19,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:19,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:19,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:19,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 04:22:19,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 04:22:19,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:19,440 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:19,441 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:19,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:19,449 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 04:22:19,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:19,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756627161] [2020-09-25 04:22:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:19,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:19,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:20,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:24,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:24,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 04:22:24,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:24,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 04:22:24,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:24,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 04:22:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:22:24,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:24,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:24,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:24,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:22:24,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:24,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:24,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:24,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:24,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 04:22:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:24,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:24,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:24,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:25,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:29,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:29,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 04:22:29,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:29,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 04:22:29,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:29,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 04:22:29,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:29,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:29,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:29,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:29,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:30,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 04:22:34,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:34,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 04:22:34,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 04:22:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:34,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:22:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:34,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:34,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:34,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:34,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 04:22:34,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:34,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:34,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:35,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:35,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:35,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:35,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:35,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 04:22:35,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:35,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:35,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:35,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:35,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:35,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:35,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:22:35,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:35,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:35,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:35,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 04:22:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:35,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:22:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:35,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:35,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:35,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:35,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:35,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:35,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:22:35,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:35,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:35,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:35,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:35,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:35,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:22:35,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:35,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 04:22:35,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756627161] [2020-09-25 04:22:35,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:35,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:35,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333800252] [2020-09-25 04:22:35,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:35,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:35,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:35,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:35,264 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 04:22:35,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:35,914 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 04:22:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:35,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 04:22:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:35,936 INFO L225 Difference]: With dead ends: 568 [2020-09-25 04:22:35,936 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 04:22:35,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:22:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 04:22:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 04:22:36,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 04:22:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 04:22:36,051 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 04:22:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:36,052 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 04:22:36,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 04:22:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 04:22:36,064 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:36,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:36,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:36,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:36,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:36,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 04:22:36,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:36,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294612108] [2020-09-25 04:22:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:36,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:36,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:37,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:41,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:41,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 04:22:41,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 04:22:41,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:41,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:22:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:22:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:41,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:41,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:22:41,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:41,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:41,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:41,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:41,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 04:22:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:41,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:41,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:46,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:46,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 04:22:46,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 04:22:46,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:46,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 04:22:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:22:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:46,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:46,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:46,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:46,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:22:51,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:51,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 04:22:51,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 04:22:51,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 04:22:51,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:51,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:22:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:51,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 04:22:51,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:22:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:51,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:51,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:22:51,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:51,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:51,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:51,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:51,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:51,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 04:22:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 04:22:51,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:51,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 04:22:51,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 04:22:51,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:51,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:22:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 04:22:51,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:51,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 04:22:51,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:22:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 04:22:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:51,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:51,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 04:22:51,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:22:51,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:51,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:51,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 04:22:51,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294612108] [2020-09-25 04:22:51,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:51,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:22:51,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694450446] [2020-09-25 04:22:51,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:22:51,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:51,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:22:51,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:22:51,773 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 04:22:53,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:53,008 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 04:22:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:22:53,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 04:22:53,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:53,013 INFO L225 Difference]: With dead ends: 542 [2020-09-25 04:22:53,014 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 04:22:53,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:53,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 04:22:53,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 04:22:53,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 04:22:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 04:22:53,045 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 04:22:53,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:53,045 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 04:22:53,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:22:53,045 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 04:22:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 04:22:53,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:53,049 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:53,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:53,050 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:53,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:53,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 04:22:53,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:53,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466234191] [2020-09-25 04:22:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:53,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:53,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:53,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:54,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:56,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 04:22:58,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-09-25 04:22:58,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:22:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:22:58,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 04:22:58,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:58,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:58,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:58,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:22:58,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:58,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:22:58,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:58,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:58,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:58,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:58,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:58,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 04:22:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:58,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:59,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:00,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:03,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:23:03,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 04:23:03,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:23:03,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 04:23:03,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:23:03,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:23:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:23:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 04:23:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 04:23:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:23:03,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:23:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:23:03,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:04,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:23:05,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...