/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 -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 0.1.25-5644d1e-m [2020-08-19 01:58:12,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:58:12,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:58:12,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:58:12,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:58:12,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:58:12,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:58:12,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:58:12,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:58:12,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:58:12,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:58:12,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:58:12,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:58:12,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:58:12,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:58:12,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:58:12,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:58:12,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:58:12,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:58:12,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:58:12,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:58:12,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:58:12,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:58:12,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:58:12,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:58:12,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:58:12,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:58:12,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:58:12,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:58:12,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:58:12,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:58:12,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:58:12,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:58:12,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:58:12,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:58:12,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:58:12,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:58:12,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:58:12,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:58:12,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:58:12,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:58:12,658 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 [2020-08-19 01:58:12,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:58:12,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:58:12,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:58:12,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:58:12,700 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:58:12,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:58:12,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:58:12,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:58:12,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:58:12,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:58:12,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:58:12,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:58:12,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:58:12,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:58:12,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:58:12,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:58:12,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:58:12,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:58:12,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:58:12,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:58:12,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:58:12,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:58:12,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:58:12,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:58:12,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:58:12,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:58:12,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:58:12,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:58:12,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:58:12,706 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; [2020-08-19 01:58:12,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:58:13,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:58:13,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:58:13,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:58:13,018 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:58:13,019 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-08-19 01:58:13,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d38f5646/83f298b58d3d4c9fb440e5a3d400bc10/FLAG6197dd95c [2020-08-19 01:58:13,613 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:58:13,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-08-19 01:58:13,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d38f5646/83f298b58d3d4c9fb440e5a3d400bc10/FLAG6197dd95c [2020-08-19 01:58:13,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d38f5646/83f298b58d3d4c9fb440e5a3d400bc10 [2020-08-19 01:58:13,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:58:13,941 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:58:13,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:58:13,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:58:13,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:58:13,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:58:13" (1/1) ... [2020-08-19 01:58:13,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:13, skipping insertion in model container [2020-08-19 01:58:13,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:58:13" (1/1) ... [2020-08-19 01:58:13,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:58:14,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:58:14,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:58:14,530 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:58:14,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:58:14,659 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:58:14,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14 WrapperNode [2020-08-19 01:58:14,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:58:14,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:58:14,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:58:14,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:58:14,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (1/1) ... [2020-08-19 01:58:14,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:58:14,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:58:14,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:58:14,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:58:14,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (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 [2020-08-19 01:58:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:58:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:58:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-19 01:58:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-19 01:58:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-19 01:58:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-08-19 01:58:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-08-19 01:58:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-08-19 01:58:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-08-19 01:58:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-08-19 01:58:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-08-19 01:58:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-08-19 01:58:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-08-19 01:58:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-08-19 01:58:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-08-19 01:58:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:58:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:58:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-19 01:58:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-19 01:58:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-19 01:58:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-19 01:58:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-19 01:58:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-19 01:58:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-19 01:58:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-19 01:58:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-19 01:58:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-19 01:58:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-19 01:58:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-19 01:58:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-19 01:58:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-19 01:58:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-19 01:58:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-19 01:58:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-19 01:58:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-19 01:58:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-19 01:58:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-19 01:58:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-19 01:58:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-19 01:58:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-19 01:58:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-19 01:58:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-19 01:58:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-19 01:58:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-19 01:58:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-19 01:58:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:58:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 01:58:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-19 01:58:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:58:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-19 01:58:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-19 01:58:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-19 01:58:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-19 01:58:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-19 01:58:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 01:58:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-19 01:58:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-19 01:58:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-19 01:58:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-19 01:58:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-19 01:58:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-19 01:58:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-19 01:58:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-19 01:58:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-19 01:58:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-19 01:58:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-19 01:58:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-19 01:58:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-19 01:58:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:58:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-08-19 01:58:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-08-19 01:58:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:58:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:58:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-08-19 01:58:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:58:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-08-19 01:58:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-08-19 01:58:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-08-19 01:58:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-08-19 01:58:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:58:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:58:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:58:15,741 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:58:15,741 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-08-19 01:58:15,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:58:15 BoogieIcfgContainer [2020-08-19 01:58:15,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:58:15,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:58:15,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:58:15,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:58:15,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:58:13" (1/3) ... [2020-08-19 01:58:15,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2412cd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:58:15, skipping insertion in model container [2020-08-19 01:58:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:58:14" (2/3) ... [2020-08-19 01:58:15,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2412cd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:58:15, skipping insertion in model container [2020-08-19 01:58:15,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:58:15" (3/3) ... [2020-08-19 01:58:15,761 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-08-19 01:58:15,772 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:58:15,782 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:58:15,796 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:58:15,821 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:58:15,821 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:58:15,821 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:58:15,822 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:58:15,822 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:58:15,822 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:58:15,822 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:58:15,822 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:58:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-08-19 01:58:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 01:58:15,857 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:58:15,858 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 01:58:15,859 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:58:15,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:58:15,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-08-19 01:58:15,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:58:15,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338422956] [2020-08-19 01:58:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:58:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:58:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:16,330 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 01:58:16,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338422956] [2020-08-19 01:58:16,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:58:16,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:58:16,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466819096] [2020-08-19 01:58:16,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:58:16,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:58:16,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:58:16,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:58:16,358 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-08-19 01:58:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:58:16,797 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2020-08-19 01:58:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 01:58:16,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 01:58:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:58:16,814 INFO L225 Difference]: With dead ends: 343 [2020-08-19 01:58:16,815 INFO L226 Difference]: Without dead ends: 166 [2020-08-19 01:58:16,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:58:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-19 01:58:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2020-08-19 01:58:16,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-08-19 01:58:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2020-08-19 01:58:16,891 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2020-08-19 01:58:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:58:16,891 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2020-08-19 01:58:16,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:58:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2020-08-19 01:58:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 01:58:16,895 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:58:16,896 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 01:58:16,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:58:16,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:58:16,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:58:16,897 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2020-08-19 01:58:16,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:58:16,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381507467] [2020-08-19 01:58:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:58:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:58:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-08-19 01:58:17,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381507467] [2020-08-19 01:58:17,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:58:17,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 01:58:17,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216925451] [2020-08-19 01:58:17,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 01:58:17,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:58:17,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 01:58:17,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-08-19 01:58:17,352 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2020-08-19 01:58:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:58:18,576 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2020-08-19 01:58:18,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 01:58:18,577 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-08-19 01:58:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:58:18,581 INFO L225 Difference]: With dead ends: 327 [2020-08-19 01:58:18,582 INFO L226 Difference]: Without dead ends: 179 [2020-08-19 01:58:18,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-08-19 01:58:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-08-19 01:58:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2020-08-19 01:58:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-08-19 01:58:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2020-08-19 01:58:18,610 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2020-08-19 01:58:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:58:18,611 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2020-08-19 01:58:18,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 01:58:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2020-08-19 01:58:18,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-19 01:58:18,616 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:58:18,616 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:58:18,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:58:18,617 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:58:18,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:58:18,618 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2020-08-19 01:58:18,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:58:18,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244837236] [2020-08-19 01:58:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:58:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:18,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:58:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:18,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:19,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-19 01:58:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 95 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-08-19 01:58:20,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244837236] [2020-08-19 01:58:20,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:58:20,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-08-19 01:58:20,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585387750] [2020-08-19 01:58:20,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-08-19 01:58:20,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:58:20,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-08-19 01:58:20,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2020-08-19 01:58:20,268 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 29 states. [2020-08-19 01:58:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:58:23,969 INFO L93 Difference]: Finished difference Result 358 states and 439 transitions. [2020-08-19 01:58:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-19 01:58:23,970 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 154 [2020-08-19 01:58:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:58:23,974 INFO L225 Difference]: With dead ends: 358 [2020-08-19 01:58:23,974 INFO L226 Difference]: Without dead ends: 196 [2020-08-19 01:58:23,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=237, Invalid=2415, Unknown=0, NotChecked=0, Total=2652 [2020-08-19 01:58:23,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-08-19 01:58:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 185. [2020-08-19 01:58:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-08-19 01:58:24,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2020-08-19 01:58:24,002 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 154 [2020-08-19 01:58:24,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:58:24,003 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2020-08-19 01:58:24,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-08-19 01:58:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2020-08-19 01:58:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-19 01:58:24,006 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:58:24,006 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:58:24,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:58:24,007 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:58:24,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:58:24,007 INFO L82 PathProgramCache]: Analyzing trace with hash -467161035, now seen corresponding path program 1 times [2020-08-19 01:58:24,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:58:24,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567305682] [2020-08-19 01:58:24,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:58:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:58:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-19 01:58:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:24,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:25,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:25,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:25,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-08-19 01:58:25,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567305682] [2020-08-19 01:58:25,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:58:25,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-19 01:58:25,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027885377] [2020-08-19 01:58:25,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-19 01:58:25,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:58:25,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-19 01:58:25,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2020-08-19 01:58:25,142 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand 19 states. [2020-08-19 01:58:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:58:27,385 INFO L93 Difference]: Finished difference Result 375 states and 445 transitions. [2020-08-19 01:58:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 01:58:27,386 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 154 [2020-08-19 01:58:27,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:58:27,390 INFO L225 Difference]: With dead ends: 375 [2020-08-19 01:58:27,391 INFO L226 Difference]: Without dead ends: 202 [2020-08-19 01:58:27,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2020-08-19 01:58:27,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-08-19 01:58:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2020-08-19 01:58:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-08-19 01:58:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 222 transitions. [2020-08-19 01:58:27,417 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 222 transitions. Word has length 154 [2020-08-19 01:58:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:58:27,418 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 222 transitions. [2020-08-19 01:58:27,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-19 01:58:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 222 transitions. [2020-08-19 01:58:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-19 01:58:27,422 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:58:27,422 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:58:27,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:58:27,423 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:58:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:58:27,423 INFO L82 PathProgramCache]: Analyzing trace with hash -2084601485, now seen corresponding path program 1 times [2020-08-19 01:58:27,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:58:27,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308716255] [2020-08-19 01:58:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:58:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:27,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:58:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:27,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-19 01:58:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-08-19 01:58:28,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308716255] [2020-08-19 01:58:28,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:58:28,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-19 01:58:28,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296782590] [2020-08-19 01:58:28,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-19 01:58:28,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:58:28,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-19 01:58:28,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-08-19 01:58:28,724 INFO L87 Difference]: Start difference. First operand 189 states and 222 transitions. Second operand 22 states. [2020-08-19 01:58:31,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:58:31,135 INFO L93 Difference]: Finished difference Result 327 states and 393 transitions. [2020-08-19 01:58:31,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-19 01:58:31,136 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 154 [2020-08-19 01:58:31,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:58:31,140 INFO L225 Difference]: With dead ends: 327 [2020-08-19 01:58:31,140 INFO L226 Difference]: Without dead ends: 258 [2020-08-19 01:58:31,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=1129, Unknown=0, NotChecked=0, Total=1260 [2020-08-19 01:58:31,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-08-19 01:58:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 213. [2020-08-19 01:58:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-08-19 01:58:31,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 251 transitions. [2020-08-19 01:58:31,182 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 251 transitions. Word has length 154 [2020-08-19 01:58:31,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:58:31,185 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 251 transitions. [2020-08-19 01:58:31,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-19 01:58:31,185 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 251 transitions. [2020-08-19 01:58:31,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-19 01:58:31,190 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:58:31,195 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:58:31,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 01:58:31,196 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:58:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:58:31,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1709746076, now seen corresponding path program 1 times [2020-08-19 01:58:31,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:58:31,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494673244] [2020-08-19 01:58:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:58:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:31,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:31,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 01:58:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:31,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 01:58:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-19 01:58:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:58:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:32,853 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-08-19 01:58:33,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:58:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:58:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:34,250 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-08-19 01:58:34,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:58:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:58:46,500 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 257 DAG size of output: 48