/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 -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 0.1.25-3af5e1f [2020-09-04 13:25:14,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:25:14,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:25:14,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:25:14,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:25:14,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:25:14,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:25:14,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:25:14,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:25:14,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:25:14,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:25:14,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:25:14,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:25:14,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:25:14,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:25:14,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:25:14,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:25:14,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:25:14,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:25:14,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:25:14,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:25:14,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:25:14,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:25:14,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:25:14,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:25:14,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:25:14,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:25:14,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:25:14,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:25:14,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:25:14,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:25:14,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:25:14,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:25:14,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:25:14,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:25:14,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:25:14,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:25:14,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:25:14,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:25:14,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:25:14,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:25:14,743 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 [2020-09-04 13:25:14,790 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:25:14,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:25:14,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:25:14,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:25:14,793 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:25:14,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:25:14,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:25:14,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:25:14,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:25:14,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:25:14,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:25:14,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:25:14,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:25:14,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:25:14,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:25:14,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:25:14,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:25:14,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:25:14,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:25:14,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:25:14,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:25:14,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:25:14,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:25:14,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:25:14,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:25:14,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:25:14,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:25:14,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:25:14,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:25:14,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:25:15,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:25:15,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:25:15,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:25:15,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:25:15,283 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:25:15,284 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-04 13:25:15,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe13c7ac/98d1c47ef3364fb1a95f57881eb43a30/FLAG3dbd17db1 [2020-09-04 13:25:15,975 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:25:15,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-04 13:25:15,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe13c7ac/98d1c47ef3364fb1a95f57881eb43a30/FLAG3dbd17db1 [2020-09-04 13:25:16,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfe13c7ac/98d1c47ef3364fb1a95f57881eb43a30 [2020-09-04 13:25:16,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:25:16,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:25:16,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:25:16,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:25:16,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:25:16,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:25:16" (1/1) ... [2020-09-04 13:25:16,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e6ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:16, skipping insertion in model container [2020-09-04 13:25:16,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:25:16" (1/1) ... [2020-09-04 13:25:16,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:25:16,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:25:16,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:25:16,903 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:25:16,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:25:17,050 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:25:17,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17 WrapperNode [2020-09-04 13:25:17,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:25:17,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:25:17,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:25:17,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:25:17,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (1/1) ... [2020-09-04 13:25:17,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:25:17,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:25:17,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:25:17,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:25:17,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (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 [2020-09-04 13:25:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:25:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:25:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-04 13:25:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-04 13:25:17,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-04 13:25:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-04 13:25:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-04 13:25:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-04 13:25:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-04 13:25:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-04 13:25:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-04 13:25:17,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-04 13:25:17,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-04 13:25:17,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-04 13:25:17,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-04 13:25:17,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-04 13:25:17,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-04 13:25:17,230 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-04 13:25:17,230 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-04 13:25:17,231 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-04 13:25:17,231 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-04 13:25:17,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:25:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:25:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 13:25:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 13:25:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 13:25:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 13:25:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 13:25:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 13:25:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 13:25:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 13:25:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 13:25:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 13:25:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 13:25:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 13:25:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 13:25:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 13:25:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 13:25:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 13:25:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-04 13:25:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-04 13:25:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 13:25:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 13:25:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 13:25:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 13:25:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 13:25:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 13:25:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 13:25:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 13:25:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 13:25:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 13:25:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 13:25:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 13:25:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 13:25:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 13:25:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 13:25:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 13:25:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 13:25:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 13:25:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 13:25:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 13:25:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 13:25:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 13:25:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 13:25:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 13:25:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 13:25:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 13:25:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 13:25:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 13:25:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 13:25:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 13:25:17,241 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-04 13:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 13:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 13:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-04 13:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 13:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:25:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-04 13:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 13:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 13:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 13:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 13:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 13:25:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 13:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 13:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 13:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 13:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 13:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 13:25:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 13:25:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 13:25:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 13:25:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 13:25:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 13:25:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 13:25:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 13:25:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 13:25:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 13:25:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 13:25:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 13:25:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 13:25:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 13:25:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 13:25:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 13:25:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:25:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-04 13:25:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-04 13:25:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 13:25:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 13:25:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-04 13:25:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-04 13:25:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 13:25:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-04 13:25:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 13:25:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-04 13:25:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-04 13:25:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 13:25:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-04 13:25:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-04 13:25:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-04 13:25:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-04 13:25:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-04 13:25:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-04 13:25:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-04 13:25:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-04 13:25:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-04 13:25:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-04 13:25:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-04 13:25:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:25:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:25:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:25:18,223 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:25:18,224 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-04 13:25:18,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:25:18 BoogieIcfgContainer [2020-09-04 13:25:18,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:25:18,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:25:18,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:25:18,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:25:18,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:25:16" (1/3) ... [2020-09-04 13:25:18,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6353e61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:25:18, skipping insertion in model container [2020-09-04 13:25:18,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:25:17" (2/3) ... [2020-09-04 13:25:18,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6353e61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:25:18, skipping insertion in model container [2020-09-04 13:25:18,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:25:18" (3/3) ... [2020-09-04 13:25:18,240 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-09-04 13:25:18,252 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:25:18,263 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:25:18,286 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:25:18,326 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:25:18,326 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:25:18,326 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:25:18,326 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:25:18,326 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:25:18,327 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:25:18,327 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:25:18,327 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:25:18,371 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-09-04 13:25:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-04 13:25:18,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:25:18,391 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] [2020-09-04 13:25:18,392 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:25:18,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:25:18,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-09-04 13:25:18,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:25:18,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246064351] [2020-09-04 13:25:18,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:25:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:25:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:25:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-04 13:25:18,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246064351] [2020-09-04 13:25:18,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:25:18,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:25:18,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498677838] [2020-09-04 13:25:19,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:25:19,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:25:19,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:25:19,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:25:19,028 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-09-04 13:25:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:25:19,515 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2020-09-04 13:25:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 13:25:19,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-09-04 13:25:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:25:19,535 INFO L225 Difference]: With dead ends: 343 [2020-09-04 13:25:19,535 INFO L226 Difference]: Without dead ends: 166 [2020-09-04 13:25:19,544 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 [2020-09-04 13:25:19,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-04 13:25:19,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2020-09-04 13:25:19,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-04 13:25:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2020-09-04 13:25:19,629 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2020-09-04 13:25:19,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:25:19,630 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2020-09-04 13:25:19,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:25:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2020-09-04 13:25:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-04 13:25:19,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:25:19,634 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] [2020-09-04 13:25:19,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:25:19,635 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:25:19,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:25:19,636 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2020-09-04 13:25:19,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:25:19,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653594065] [2020-09-04 13:25:19,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:25:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:19,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:19,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:25:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:19,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:25:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-04 13:25:20,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653594065] [2020-09-04 13:25:20,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565797887] [2020-09-04 13:25:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:25:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:20,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjunts are in the unsatisfiable core [2020-09-04 13:25:20,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:25:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-04 13:25:20,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:25:20,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 13 [2020-09-04 13:25:20,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105925201] [2020-09-04 13:25:20,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 13:25:20,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:25:20,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 13:25:20,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:25:20,553 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2020-09-04 13:25:21,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:25:21,897 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2020-09-04 13:25:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:25:21,897 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-09-04 13:25:21,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:25:21,900 INFO L225 Difference]: With dead ends: 327 [2020-09-04 13:25:21,900 INFO L226 Difference]: Without dead ends: 179 [2020-09-04 13:25:21,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:25:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-04 13:25:21,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2020-09-04 13:25:21,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-09-04 13:25:21,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2020-09-04 13:25:21,936 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2020-09-04 13:25:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:25:21,937 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2020-09-04 13:25:21,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 13:25:21,937 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2020-09-04 13:25:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 13:25:21,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:25:21,949 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] [2020-09-04 13:25:22,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-09-04 13:25:22,163 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:25:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:25:22,163 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2020-09-04 13:25:22,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:25:22,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130075860] [2020-09-04 13:25:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:25:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:22,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:22,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:25:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:22,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:25:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:25:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-04 13:25:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:23,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:25:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:25:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:25:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:25:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:25:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 95 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-09-04 13:25:24,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130075860] [2020-09-04 13:25:24,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192596395] [2020-09-04 13:25:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:25:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:25:24,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 58 conjunts are in the unsatisfiable core [2020-09-04 13:25:24,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:25:24,656 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-09-04 13:25:24,657 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-04 13:25:24,663 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:25:24,664 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:25:24,665 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-09-04 13:25:24,681 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2020-09-04 13:25:24,682 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-04 13:25:24,687 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:25:24,689 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:25:24,689 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2020-09-04 13:25:26,348 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0))))) is different from true [2020-09-04 13:25:37,562 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 22 [2020-09-04 13:25:39,305 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (= (select (select (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0)) |c_dll_insert_slave_#in~dll.base|) |c_dll_insert_slave_#in~dll.offset|) c_dll_insert_slave_~next~0.base) (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|))) is different from true [2020-09-04 13:25:41,336 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|) (= (select (select (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0)) |c_dll_insert_slave_#in~dll.base|) |c_dll_insert_slave_#in~dll.offset|) 0))) is different from true [2020-09-04 13:25:43,392 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|) (= (select (select (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0)) |c_##fun~$Pointer$~TO~VOID_#in~9.base|) |c_##fun~$Pointer$~TO~VOID_#in~9.offset|) 0))) is different from true [2020-09-04 13:25:43,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-09-04 13:25:43,435 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-04 13:25:43,437 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:25:43,437 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:25:43,437 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:1 [2020-09-04 13:25:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 8 not checked. [2020-09-04 13:25:43,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:25:43,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 22] total 37 [2020-09-04 13:25:43,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188035639] [2020-09-04 13:25:43,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-04 13:25:43,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:25:43,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-04 13:25:43,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=968, Unknown=10, NotChecked=260, Total=1332 [2020-09-04 13:25:43,480 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 37 states. [2020-09-04 13:25:48,974 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2020-09-04 13:25:50,460 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 31 [2020-09-04 13:25:53,935 WARN L193 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-09-04 13:25:58,652 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-09-04 13:26:05,422 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-09-04 13:26:13,571 WARN L193 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-09-04 13:26:20,048 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 25 [2020-09-04 13:26:31,923 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2020-09-04 13:26:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:26:40,553 INFO L93 Difference]: Finished difference Result 363 states and 444 transitions. [2020-09-04 13:26:40,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-04 13:26:40,553 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 154 [2020-09-04 13:26:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:26:40,556 INFO L225 Difference]: With dead ends: 363 [2020-09-04 13:26:40,557 INFO L226 Difference]: Without dead ends: 201 [2020-09-04 13:26:40,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 190 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 70.3s TimeCoverageRelationStatistics Valid=331, Invalid=3320, Unknown=25, NotChecked=484, Total=4160 [2020-09-04 13:26:40,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-04 13:26:40,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 185. [2020-09-04 13:26:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-04 13:26:40,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2020-09-04 13:26:40,613 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 154 [2020-09-04 13:26:40,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:26:40,617 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2020-09-04 13:26:40,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-04 13:26:40,617 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2020-09-04 13:26:40,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 13:26:40,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:26:40,620 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] [2020-09-04 13:26:40,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:26:40,838 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:26:40,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:26:40,839 INFO L82 PathProgramCache]: Analyzing trace with hash -467161035, now seen corresponding path program 1 times [2020-09-04 13:26:40,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:26:40,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453941875] [2020-09-04 13:26:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:26:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:26:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:26:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:26:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:41,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-04 13:26:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:26:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:26:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-09-04 13:26:42,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453941875] [2020-09-04 13:26:42,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271081668] [2020-09-04 13:26:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:26:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:42,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 46 conjunts are in the unsatisfiable core [2020-09-04 13:26:42,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:26:42,847 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:26:42,848 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 47 [2020-09-04 13:26:42,849 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-04 13:26:42,886 INFO L625 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2020-09-04 13:26:42,892 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:26:42,892 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2020-09-04 13:26:43,018 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-09-04 13:26:43,019 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-04 13:26:43,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:26:43,021 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:26:43,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-09-04 13:26:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-09-04 13:26:43,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:26:43,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 31 [2020-09-04 13:26:43,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245004294] [2020-09-04 13:26:43,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-04 13:26:43,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:26:43,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-04 13:26:43,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=862, Unknown=0, NotChecked=0, Total=930 [2020-09-04 13:26:43,165 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand 31 states. [2020-09-04 13:26:45,469 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-09-04 13:26:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:26:48,119 INFO L93 Difference]: Finished difference Result 433 states and 518 transitions. [2020-09-04 13:26:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-04 13:26:48,120 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 154 [2020-09-04 13:26:48,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:26:48,123 INFO L225 Difference]: With dead ends: 433 [2020-09-04 13:26:48,123 INFO L226 Difference]: Without dead ends: 260 [2020-09-04 13:26:48,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=232, Invalid=2524, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 13:26:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-04 13:26:48,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 217. [2020-09-04 13:26:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-04 13:26:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 256 transitions. [2020-09-04 13:26:48,147 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 256 transitions. Word has length 154 [2020-09-04 13:26:48,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:26:48,147 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 256 transitions. [2020-09-04 13:26:48,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-04 13:26:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 256 transitions. [2020-09-04 13:26:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-04 13:26:48,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:26:48,150 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] [2020-09-04 13:26:48,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:26:48,366 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:26:48,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:26:48,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1709746076, now seen corresponding path program 1 times [2020-09-04 13:26:48,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:26:48,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028328473] [2020-09-04 13:26:48,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:26:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:48,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:48,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:26:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:49,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:49,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:49,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:49,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:26:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:49,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:26:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-04 13:26:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:26:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:50,709 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-09-04 13:26:51,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:26:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:51,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:26:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:26:52,439 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-09-04 13:26:52,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:26:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:27:21,416 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 257 DAG size of output: 48 [2020-09-04 13:30:21,044 WARN L193 SmtUtils]: Spent 2.74 m on a formula simplification. DAG size of input: 8347 DAG size of output: 27 [2020-09-04 13:31:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:31:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:24,792 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 40 [2020-09-04 13:31:24,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 13:31:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:25,662 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-09-04 13:31:26,145 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 29 [2020-09-04 13:31:27,847 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 39 [2020-09-04 13:31:27,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:31:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:28,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:31:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat