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 0.1.24-f4eb214f-m [2019-10-13 18:09:07,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:09:07,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:09:07,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:09:07,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:09:07,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:09:07,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:09:07,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:09:07,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:09:07,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:09:07,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:09:07,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:09:07,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:09:07,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:09:07,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:09:07,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:09:07,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:09:07,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:09:07,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:09:07,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:09:07,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:09:07,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:09:07,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:09:07,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:09:07,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:09:07,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:09:07,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:09:07,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:09:07,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:09:07,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:09:07,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:09:07,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:09:07,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:09:07,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:09:07,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:09:07,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:09:07,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:09:07,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:09:07,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:09:07,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:09:07,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:09:07,906 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 [2019-10-13 18:09:07,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:09:07,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:09:07,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:09:07,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:09:07,934 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:09:07,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:09:07,935 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:09:07,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:09:07,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:09:07,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:09:07,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:09:07,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:09:07,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:09:07,937 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:09:07,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:09:07,938 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:09:07,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:09:07,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:09:07,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:09:07,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:09:07,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:09:07,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:09:07,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:09:07,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:09:07,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:09:07,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:09:07,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:09:07,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:09:07,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:09:08,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:09:08,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:09:08,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:09:08,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:09:08,229 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:09:08,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2019-10-13 18:09:08,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86612d34e/f0379be9d9b54b2db352aaeeff2a1be4/FLAG7219cf389 [2019-10-13 18:09:08,910 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:09:08,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2019-10-13 18:09:08,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86612d34e/f0379be9d9b54b2db352aaeeff2a1be4/FLAG7219cf389 [2019-10-13 18:09:09,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86612d34e/f0379be9d9b54b2db352aaeeff2a1be4 [2019-10-13 18:09:09,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:09:09,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:09:09,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:09:09,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:09:09,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:09:09,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6e6c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09, skipping insertion in model container [2019-10-13 18:09:09,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,177 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:09:09,234 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:09:09,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:09:09,688 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:09:09,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:09:09,832 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:09:09,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09 WrapperNode [2019-10-13 18:09:09,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:09:09,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:09:09,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:09:09,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:09:09,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (1/1) ... [2019-10-13 18:09:09,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:09:09,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:09:09,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:09:09,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:09:09,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (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 [2019-10-13 18:09:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:09:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:09:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:09:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 18:09:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 18:09:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-10-13 18:09:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2019-10-13 18:09:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2019-10-13 18:09:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2019-10-13 18:09:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2019-10-13 18:09:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2019-10-13 18:09:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2019-10-13 18:09:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2019-10-13 18:09:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2019-10-13 18:09:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2019-10-13 18:09:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2019-10-13 18:09:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2019-10-13 18:09:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2019-10-13 18:09:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2019-10-13 18:09:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2019-10-13 18:09:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2019-10-13 18:09:09,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:09:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:09:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 18:09:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 18:09:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 18:09:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 18:09:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 18:09:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 18:09:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 18:09:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 18:09:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 18:09:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 18:09:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 18:09:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 18:09:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 18:09:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 18:09:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 18:09:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 18:09:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 18:09:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 18:09:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 18:09:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 18:09:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 18:09:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 18:09:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 18:09:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 18:09:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 18:09:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 18:09:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 18:09:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 18:09:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:09:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:09:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 18:09:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:09:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 18:09:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 18:09:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 18:09:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 18:09:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 18:09:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 18:09:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 18:09:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 18:09:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 18:09:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 18:09:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 18:09:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 18:09:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 18:09:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 18:09:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 18:09:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 18:09:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 18:09:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 18:09:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 18:09:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 18:09:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 18:09:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 18:09:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 18:09:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 18:09:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:09:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-10-13 18:09:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2019-10-13 18:09:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:09:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:09:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:09:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:09:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2019-10-13 18:09:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2019-10-13 18:09:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2019-10-13 18:09:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2019-10-13 18:09:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2019-10-13 18:09:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:09:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:09:10,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:09:10,925 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:09:10,926 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-10-13 18:09:10,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:10 BoogieIcfgContainer [2019-10-13 18:09:10,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:09:10,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:09:10,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:09:10,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:09:10,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:09:09" (1/3) ... [2019-10-13 18:09:10,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef602e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:10, skipping insertion in model container [2019-10-13 18:09:10,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:09:09" (2/3) ... [2019-10-13 18:09:10,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef602e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:09:10, skipping insertion in model container [2019-10-13 18:09:10,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:09:10" (3/3) ... [2019-10-13 18:09:10,935 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2019-10-13 18:09:10,945 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:09:10,954 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:09:10,965 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:09:10,992 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:09:10,992 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:09:10,993 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:09:10,993 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:09:10,993 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:09:10,993 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:09:10,993 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:09:10,994 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:09:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2019-10-13 18:09:11,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 18:09:11,026 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:09:11,027 INFO L380 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] [2019-10-13 18:09:11,029 INFO L410 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:09:11,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:09:11,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2019-10-13 18:09:11,044 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:09:11,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938176783] [2019-10-13 18:09:11,044 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:11,045 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:11,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:09:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 18:09:11,529 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938176783] [2019-10-13 18:09:11,530 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:09:11,531 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:09:11,531 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022961953] [2019-10-13 18:09:11,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:09:11,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:09:11,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:09:11,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:09:11,555 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2019-10-13 18:09:12,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:09:12,060 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2019-10-13 18:09:12,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 18:09:12,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 18:09:12,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:09:12,078 INFO L225 Difference]: With dead ends: 343 [2019-10-13 18:09:12,078 INFO L226 Difference]: Without dead ends: 166 [2019-10-13 18:09:12,085 INFO L600 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 [2019-10-13 18:09:12,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-13 18:09:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2019-10-13 18:09:12,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-13 18:09:12,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2019-10-13 18:09:12,159 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2019-10-13 18:09:12,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:09:12,159 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2019-10-13 18:09:12,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 18:09:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2019-10-13 18:09:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 18:09:12,163 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:09:12,163 INFO L380 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] [2019-10-13 18:09:12,164 INFO L410 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:09:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:09:12,164 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2019-10-13 18:09:12,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:09:12,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824395399] [2019-10-13 18:09:12,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:12,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:12,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:09:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 18:09:12,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824395399] [2019-10-13 18:09:12,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851528454] [2019-10-13 18:09:12,781 INFO L94 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 [2019-10-13 18:09:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:12,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-13 18:09:12,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:09:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 18:09:13,017 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 18:09:13,017 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 13 [2019-10-13 18:09:13,018 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103638603] [2019-10-13 18:09:13,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 18:09:13,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:09:13,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 18:09:13,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 18:09:13,023 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2019-10-13 18:09:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:09:14,279 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2019-10-13 18:09:14,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 18:09:14,280 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2019-10-13 18:09:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:09:14,283 INFO L225 Difference]: With dead ends: 327 [2019-10-13 18:09:14,283 INFO L226 Difference]: Without dead ends: 179 [2019-10-13 18:09:14,285 INFO L600 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 [2019-10-13 18:09:14,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-10-13 18:09:14,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2019-10-13 18:09:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-10-13 18:09:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2019-10-13 18:09:14,309 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2019-10-13 18:09:14,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:09:14,309 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2019-10-13 18:09:14,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 18:09:14,309 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2019-10-13 18:09:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 18:09:14,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:09:14,315 INFO L380 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] [2019-10-13 18:09:14,524 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:09:14,524 INFO L410 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:09:14,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:09:14,525 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2019-10-13 18:09:14,525 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:09:14,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641001135] [2019-10-13 18:09:14,526 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:14,526 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:14,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:09:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 93 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-13 18:09:16,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641001135] [2019-10-13 18:09:16,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817929571] [2019-10-13 18:09:16,363 INFO L94 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 [2019-10-13 18:09:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:16,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 50 conjunts are in the unsatisfiable core [2019-10-13 18:09:16,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:09:16,959 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 18:09:16,959 INFO L375 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 [2019-10-13 18:09:16,960 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:16,988 INFO L567 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2019-10-13 18:09:16,989 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 18:09:16,990 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2019-10-13 18:09:17,087 INFO L375 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 [2019-10-13 18:09:17,087 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:17,089 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 18:09:17,090 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 18:09:17,090 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-10-13 18:09:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 18:09:17,276 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 18:09:17,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 22] total 41 [2019-10-13 18:09:17,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670929376] [2019-10-13 18:09:17,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-10-13 18:09:17,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:09:17,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-10-13 18:09:17,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1547, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 18:09:17,279 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 41 states. [2019-10-13 18:09:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:09:22,493 INFO L93 Difference]: Finished difference Result 409 states and 505 transitions. [2019-10-13 18:09:22,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-10-13 18:09:22,499 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 154 [2019-10-13 18:09:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:09:22,502 INFO L225 Difference]: With dead ends: 409 [2019-10-13 18:09:22,502 INFO L226 Difference]: Without dead ends: 250 [2019-10-13 18:09:22,505 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=292, Invalid=4400, Unknown=0, NotChecked=0, Total=4692 [2019-10-13 18:09:22,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-13 18:09:22,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 202. [2019-10-13 18:09:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-13 18:09:22,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 240 transitions. [2019-10-13 18:09:22,532 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 240 transitions. Word has length 154 [2019-10-13 18:09:22,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:09:22,532 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 240 transitions. [2019-10-13 18:09:22,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-10-13 18:09:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 240 transitions. [2019-10-13 18:09:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 18:09:22,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:09:22,535 INFO L380 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, 1, 1, 1] [2019-10-13 18:09:22,740 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:09:22,741 INFO L410 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:09:22,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:09:22,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1779393950, now seen corresponding path program 1 times [2019-10-13 18:09:22,741 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:09:22,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83273505] [2019-10-13 18:09:22,742 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:22,742 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:09:22,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:09:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 18:09:24,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83273505] [2019-10-13 18:09:24,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600126400] [2019-10-13 18:09:24,014 INFO L94 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 [2019-10-13 18:09:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:09:24,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 52 conjunts are in the unsatisfiable core [2019-10-13 18:09:24,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:09:24,253 INFO L375 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 7 treesize of output 3 [2019-10-13 18:09:24,253 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:24,261 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 18:09:24,265 INFO L375 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 7 treesize of output 3 [2019-10-13 18:09:24,265 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:24,272 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 18:09:24,273 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 18:09:24,273 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:7 [2019-10-13 18:09:26,370 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_master_~ptr~1.base Int) (alloc_or_die_master_~ptr~1.offset Int)) (let ((.cse0 (+ alloc_or_die_master_~ptr~1.offset 4)) (.cse1 (+ alloc_or_die_master_~ptr~1.offset 8))) (and (<= (+ |c_#StackHeapBarrier| 1) alloc_or_die_master_~ptr~1.base) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| alloc_or_die_master_~ptr~1.base (store (store (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_master_~ptr~1.base) alloc_or_die_master_~ptr~1.offset 0) .cse0 0) .cse1 0))) (= (store |c_old(#memory_$Pointer$.offset)| alloc_or_die_master_~ptr~1.base (store (store (store (select |c_old(#memory_$Pointer$.offset)| alloc_or_die_master_~ptr~1.base) alloc_or_die_master_~ptr~1.offset 0) .cse0 0) .cse1 0)) |c_#memory_$Pointer$.offset|)))) is different from true [2019-10-13 18:09:35,988 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 36 [2019-10-13 18:09:36,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,224 INFO L375 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 75 treesize of output 71 [2019-10-13 18:09:36,225 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:36,300 INFO L567 ElimStorePlain]: treesize reduction 19, result has 78.9 percent of original size [2019-10-13 18:09:36,312 INFO L375 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 75 treesize of output 71 [2019-10-13 18:09:36,313 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:36,407 INFO L567 ElimStorePlain]: treesize reduction 17, result has 81.9 percent of original size [2019-10-13 18:09:36,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,421 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 18:09:36,421 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:65, output treesize:1 [2019-10-13 18:09:36,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 18:09:36,929 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 18:09:36,929 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:36,931 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 18:09:36,932 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 18:09:36,933 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 18:09:36,933 INFO L464 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.offset)_AFTER_CALL_43| vanished before elimination [2019-10-13 18:09:36,933 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 18:09:36,933 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:99, output treesize:1 [2019-10-13 18:09:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 126 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-13 18:09:36,984 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 18:09:36,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 22 [2019-10-13 18:09:36,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215858784] [2019-10-13 18:09:36,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 18:09:36,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:09:36,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 18:09:36,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=360, Unknown=5, NotChecked=38, Total=462 [2019-10-13 18:09:36,986 INFO L87 Difference]: Start difference. First operand 202 states and 240 transitions. Second operand 22 states.