/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 0.1.25-72570d3 [2020-08-22 16:39:02,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:39:02,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:39:02,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:39:02,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:39:02,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:39:02,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:39:02,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:39:02,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:39:02,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:39:02,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:39:02,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:39:02,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:39:02,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:39:02,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:39:02,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:39:02,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:39:02,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:39:02,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:39:02,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:39:02,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:39:02,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:39:02,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:39:02,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:39:02,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:39:02,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:39:02,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:39:02,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:39:02,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:39:02,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:39:02,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:39:02,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:39:02,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:39:02,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:39:02,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:39:02,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:39:02,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:39:02,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:39:02,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:39:02,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:39:02,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:39:02,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:39:02,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:39:02,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:39:02,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:39:02,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:39:02,941 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:39:02,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:39:02,941 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:39:02,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:39:02,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:39:02,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:39:02,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:39:02,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:39:02,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:39:02,944 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:39:02,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:39:02,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:39:02,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:39:02,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:39:02,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:39:02,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:39:02,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:39:02,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:39:02,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:39:02,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:39:02,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:39:02,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:39:02,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:39:02,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:39:02,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:39:02,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:39:03,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:39:03,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:39:03,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:39:03,271 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:39:03,271 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:39:03,272 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-08-22 16:39:03,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cced8daa5/c5242dd3ca9f485cbe1e47d6b4d4b58e/FLAGfc7b3237d [2020-08-22 16:39:03,914 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:39:03,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-08-22 16:39:03,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cced8daa5/c5242dd3ca9f485cbe1e47d6b4d4b58e/FLAGfc7b3237d [2020-08-22 16:39:04,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cced8daa5/c5242dd3ca9f485cbe1e47d6b4d4b58e [2020-08-22 16:39:04,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:39:04,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:39:04,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:39:04,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:39:04,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:39:04,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:39:04" (1/1) ... [2020-08-22 16:39:04,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181c438f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:04, skipping insertion in model container [2020-08-22 16:39:04,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:39:04" (1/1) ... [2020-08-22 16:39:04,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:39:04,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:39:04,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:39:04,892 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:39:04,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:39:05,018 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:39:05,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05 WrapperNode [2020-08-22 16:39:05,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:39:05,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:39:05,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:39:05,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:39:05,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... [2020-08-22 16:39:05,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:39:05,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:39:05,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:39:05,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:39:05,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 16:39:05,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:39:05,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:39:05,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 16:39:05,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 16:39:05,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 16:39:05,193 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-08-22 16:39:05,193 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-08-22 16:39:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-08-22 16:39:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-08-22 16:39:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-08-22 16:39:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-08-22 16:39:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-08-22 16:39:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-08-22 16:39:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-08-22 16:39:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-08-22 16:39:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-08-22 16:39:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-08-22 16:39:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-08-22 16:39:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-08-22 16:39:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-08-22 16:39:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-08-22 16:39:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:39:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:39:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 16:39:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 16:39:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 16:39:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 16:39:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 16:39:05,198 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 16:39:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 16:39:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 16:39:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 16:39:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 16:39:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 16:39:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 16:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 16:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 16:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 16:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 16:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 16:39:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 16:39:05,201 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 16:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 16:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 16:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 16:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 16:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 16:39:05,202 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 16:39:05,203 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 16:39:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 16:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 16:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 16:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 16:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 16:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 16:39:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 16:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 16:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 16:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 16:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-22 16:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 16:39:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 16:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-22 16:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 16:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-22 16:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 16:39:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 16:39:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 16:39:05,209 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 16:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 16:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 16:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 16:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 16:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 16:39:05,210 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 16:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 16:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 16:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 16:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 16:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 16:39:05,211 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 16:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 16:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 16:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 16:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 16:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 16:39:05,212 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 16:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 16:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 16:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 16:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 16:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:39:05,213 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-08-22 16:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-08-22 16:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 16:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-08-22 16:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-08-22 16:39:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-08-22 16:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 16:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 16:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:39:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-08-22 16:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-08-22 16:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-08-22 16:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-08-22 16:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-08-22 16:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-08-22 16:39:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:39:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:39:06,077 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:39:06,077 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-08-22 16:39:06,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:39:06 BoogieIcfgContainer [2020-08-22 16:39:06,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:39:06,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:39:06,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:39:06,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:39:06,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:39:04" (1/3) ... [2020-08-22 16:39:06,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139d81b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:39:06, skipping insertion in model container [2020-08-22 16:39:06,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:39:05" (2/3) ... [2020-08-22 16:39:06,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139d81b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:39:06, skipping insertion in model container [2020-08-22 16:39:06,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:39:06" (3/3) ... [2020-08-22 16:39:06,093 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-08-22 16:39:06,106 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:39:06,115 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:39:06,131 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:39:06,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:39:06,158 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:39:06,158 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:39:06,158 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:39:06,158 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:39:06,158 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:39:06,158 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:39:06,159 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:39:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-08-22 16:39:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 16:39:06,190 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:06,191 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] [2020-08-22 16:39:06,192 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:06,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-08-22 16:39:06,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:06,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124126645] [2020-08-22 16:39:06,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:39:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:39:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-22 16:39:06,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124126645] [2020-08-22 16:39:06,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:39:06,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:39:06,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885405751] [2020-08-22 16:39:06,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:39:06,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:39:06,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:39:06,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:39:06,808 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-08-22 16:39:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:39:07,298 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2020-08-22 16:39:07,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 16:39:07,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 16:39:07,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:39:07,316 INFO L225 Difference]: With dead ends: 343 [2020-08-22 16:39:07,317 INFO L226 Difference]: Without dead ends: 166 [2020-08-22 16:39:07,324 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 [2020-08-22 16:39:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-08-22 16:39:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2020-08-22 16:39:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-08-22 16:39:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2020-08-22 16:39:07,402 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2020-08-22 16:39:07,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:39:07,402 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2020-08-22 16:39:07,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:39:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2020-08-22 16:39:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 16:39:07,406 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:07,407 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] [2020-08-22 16:39:07,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:39:07,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:07,408 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2020-08-22 16:39:07,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:07,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939460857] [2020-08-22 16:39:07,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:39:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:39:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:07,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:08,014 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-08-22 16:39:08,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939460857] [2020-08-22 16:39:08,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291661763] [2020-08-22 16:39:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 16:39:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:08,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjunts are in the unsatisfiable core [2020-08-22 16:39:08,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:39:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-08-22 16:39:08,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:39:08,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 13 [2020-08-22 16:39:08,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430385150] [2020-08-22 16:39:08,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 16:39:08,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:39:08,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 16:39:08,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:39:08,415 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2020-08-22 16:39:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:39:09,614 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2020-08-22 16:39:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:39:09,615 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-08-22 16:39:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:39:09,619 INFO L225 Difference]: With dead ends: 327 [2020-08-22 16:39:09,619 INFO L226 Difference]: Without dead ends: 179 [2020-08-22 16:39:09,622 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 [2020-08-22 16:39:09,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-08-22 16:39:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2020-08-22 16:39:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-08-22 16:39:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2020-08-22 16:39:09,646 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2020-08-22 16:39:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:39:09,646 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2020-08-22 16:39:09,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 16:39:09,647 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2020-08-22 16:39:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 16:39:09,653 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:39:09,653 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] [2020-08-22 16:39:09,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-08-22 16:39:09,867 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:39:09,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:39:09,868 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2020-08-22 16:39:09,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:39:09,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102986928] [2020-08-22 16:39:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:39:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:39:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:39:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:10,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:39:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 16:39:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:39:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:39:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:39:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:39:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:11,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:39:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 95 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-08-22 16:39:12,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102986928] [2020-08-22 16:39:12,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912726658] [2020-08-22 16:39:12,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 16:39:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:39:12,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 58 conjunts are in the unsatisfiable core [2020-08-22 16:39:12,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:39:12,420 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 [2020-08-22 16:39:12,421 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:39:12,427 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:39:12,428 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:39:12,428 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-08-22 16:39:12,446 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 [2020-08-22 16:39:12,447 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:39:12,452 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:39:12,454 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:39:12,454 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2020-08-22 16:39:14,153 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 [2020-08-22 16:39:25,144 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 22 [2020-08-22 16:39:26,904 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 [2020-08-22 16:39:28,922 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 [2020-08-22 16:39:30,617 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 [2020-08-22 16:39:30,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-08-22 16:39:30,675 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:39:30,676 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:39:30,677 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:39:30,677 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:1 [2020-08-22 16:39:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 61 trivial. 8 not checked. [2020-08-22 16:39:30,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:39:30,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 22] total 37 [2020-08-22 16:39:30,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922762970] [2020-08-22 16:39:30,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-08-22 16:39:30,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:39:30,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-08-22 16:39:30,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=968, Unknown=10, NotChecked=260, Total=1332 [2020-08-22 16:39:30,765 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 37 states. [2020-08-22 16:39:36,789 WARN L193 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2020-08-22 16:39:38,250 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 31 [2020-08-22 16:39:41,639 WARN L193 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-08-22 16:39:48,352 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-08-22 16:39:57,719 WARN L193 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-08-22 16:40:04,382 WARN L193 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-08-22 16:40:08,770 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 25 [2020-08-22 16:40:20,843 WARN L193 SmtUtils]: Spent 4.03 s on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2020-08-22 16:40:29,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:40:29,528 INFO L93 Difference]: Finished difference Result 363 states and 444 transitions. [2020-08-22 16:40:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-22 16:40:29,529 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 154 [2020-08-22 16:40:29,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:40:29,532 INFO L225 Difference]: With dead ends: 363 [2020-08-22 16:40:29,532 INFO L226 Difference]: Without dead ends: 201 [2020-08-22 16:40:29,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 190 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 4 IntricatePredicates, 2 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 71.5s TimeCoverageRelationStatistics Valid=331, Invalid=3320, Unknown=25, NotChecked=484, Total=4160 [2020-08-22 16:40:29,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-08-22 16:40:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 185. [2020-08-22 16:40:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-08-22 16:40:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2020-08-22 16:40:29,560 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 154 [2020-08-22 16:40:29,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:40:29,560 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2020-08-22 16:40:29,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-08-22 16:40:29,561 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2020-08-22 16:40:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 16:40:29,564 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:40:29,564 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] [2020-08-22 16:40:29,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:40:29,778 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:40:29,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:40:29,778 INFO L82 PathProgramCache]: Analyzing trace with hash -467161035, now seen corresponding path program 1 times [2020-08-22 16:40:29,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:40:29,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411939187] [2020-08-22 16:40:29,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:40:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:29,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:29,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:40:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:40:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:40:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 16:40:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:40:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:40:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:30,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-08-22 16:40:31,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411939187] [2020-08-22 16:40:31,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658157583] [2020-08-22 16:40:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 16:40:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:31,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 46 conjunts are in the unsatisfiable core [2020-08-22 16:40:31,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:40:31,577 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:40:31,578 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 [2020-08-22 16:40:31,579 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:40:31,608 INFO L625 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2020-08-22 16:40:31,616 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:40:31,616 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2020-08-22 16:40:31,721 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 [2020-08-22 16:40:31,722 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-08-22 16:40:31,725 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-08-22 16:40:31,726 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-08-22 16:40:31,726 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-08-22 16:40:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-08-22 16:40:31,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:40:31,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 31 [2020-08-22 16:40:31,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685242814] [2020-08-22 16:40:31,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-08-22 16:40:31,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:40:31,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-08-22 16:40:31,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=862, Unknown=0, NotChecked=0, Total=930 [2020-08-22 16:40:31,845 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand 31 states. [2020-08-22 16:40:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:40:36,027 INFO L93 Difference]: Finished difference Result 433 states and 518 transitions. [2020-08-22 16:40:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-08-22 16:40:36,028 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 154 [2020-08-22 16:40:36,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:40:36,032 INFO L225 Difference]: With dead ends: 433 [2020-08-22 16:40:36,032 INFO L226 Difference]: Without dead ends: 260 [2020-08-22 16:40:36,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=232, Invalid=2524, Unknown=0, NotChecked=0, Total=2756 [2020-08-22 16:40:36,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-08-22 16:40:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 217. [2020-08-22 16:40:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-08-22 16:40:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 256 transitions. [2020-08-22 16:40:36,059 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 256 transitions. Word has length 154 [2020-08-22 16:40:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:40:36,060 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 256 transitions. [2020-08-22 16:40:36,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-08-22 16:40:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 256 transitions. [2020-08-22 16:40:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-22 16:40:36,063 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:40:36,063 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] [2020-08-22 16:40:36,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:40:36,277 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:40:36,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:40:36,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1709746076, now seen corresponding path program 1 times [2020-08-22 16:40:36,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:40:36,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677260115] [2020-08-22 16:40:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:40:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:36,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:36,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:40:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:36,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:40:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:40:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 16:40:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:37,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:40:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:38,213 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-08-22 16:40:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:40:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:38,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:40:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:39,667 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-08-22 16:40:39,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:40:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:40:53,621 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 257 DAG size of output: 48 [2020-08-22 16:43:52,935 WARN L193 SmtUtils]: Spent 2.71 m on a formula simplification. DAG size of input: 8347 DAG size of output: 27 [2020-08-22 16:44:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:44:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:44:57,215 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 40 [2020-08-22 16:44:57,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:44:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:44:59,494 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 39 [2020-08-22 16:44:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:44:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:00,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:45:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat