/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:32:19,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:32:19,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:32:19,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:32:19,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:32:19,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:32:19,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:32:19,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:32:19,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:32:19,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:32:19,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:32:19,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:32:19,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:32:19,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:32:19,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:32:19,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:32:19,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:32:19,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:32:19,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:32:19,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:32:19,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:32:19,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:32:19,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:32:19,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:32:19,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:32:19,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:32:19,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:32:19,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:32:19,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:32:19,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:32:19,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:32:19,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:32:19,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:32:19,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:32:19,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:32:19,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:32:19,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:32:19,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:32:19,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:32:19,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:32:19,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:32:19,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:32:19,994 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:32:19,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:32:20,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:32:20,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:32:20,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:32:20,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:32:20,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:32:20,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:32:20,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:32:20,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:32:20,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:32:20,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:32:20,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:32:20,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:32:20,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:32:20,005 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:32:20,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:32:20,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:32:20,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:32:20,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:32:20,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:32:20,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:32:20,006 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:32:20,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:32:20,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:32:20,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:32:20,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:32:20,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:32:20,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-10-23 20:32:20,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759b6ca0c/7ea8c2aeec1e4273b3dea7c2c4931ddc/FLAGe2161fab6 [2020-10-23 20:32:21,340 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:32:21,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-10-23 20:32:21,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759b6ca0c/7ea8c2aeec1e4273b3dea7c2c4931ddc/FLAGe2161fab6 [2020-10-23 20:32:21,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759b6ca0c/7ea8c2aeec1e4273b3dea7c2c4931ddc [2020-10-23 20:32:21,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:32:21,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:32:21,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:32:21,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:32:21,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:32:21,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:32:21" (1/1) ... [2020-10-23 20:32:21,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b9fb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:21, skipping insertion in model container [2020-10-23 20:32:21,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:32:21" (1/1) ... [2020-10-23 20:32:21,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:32:21,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:32:22,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:32:22,177 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:32:22,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:32:22,416 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:32:22,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22 WrapperNode [2020-10-23 20:32:22,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:32:22,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:32:22,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:32:22,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:32:22,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (1/1) ... [2020-10-23 20:32:22,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:32:22,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:32:22,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:32:22,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:32:22,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (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 [2020-10-23 20:32:22,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:32:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:32:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-23 20:32:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:32:22,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 20:32:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 20:32:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-23 20:32:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-10-23 20:32:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-10-23 20:32:22,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-10-23 20:32:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-10-23 20:32:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-10-23 20:32:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-10-23 20:32:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-10-23 20:32:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-10-23 20:32:22,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-10-23 20:32:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-10-23 20:32:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-10-23 20:32:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-10-23 20:32:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-10-23 20:32:22,661 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-10-23 20:32:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-10-23 20:32:22,662 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:32:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:32:22,662 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:32:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 20:32:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 20:32:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:32:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:32:22,663 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 20:32:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 20:32:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 20:32:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 20:32:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 20:32:22,664 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 20:32:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 20:32:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 20:32:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 20:32:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 20:32:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 20:32:22,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 20:32:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 20:32:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 20:32:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 20:32:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 20:32:22,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 20:32:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 20:32:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 20:32:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 20:32:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 20:32:22,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 20:32:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 20:32:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 20:32:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 20:32:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 20:32:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 20:32:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 20:32:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 20:32:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 20:32:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 20:32:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 20:32:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 20:32:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 20:32:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 20:32:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 20:32:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 20:32:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 20:32:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 20:32:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 20:32:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 20:32:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 20:32:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 20:32:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 20:32:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 20:32:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 20:32:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 20:32:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 20:32:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 20:32:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 20:32:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 20:32:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 20:32:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:32:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:32:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 20:32:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:32:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 20:32:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 20:32:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 20:32:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 20:32:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-23 20:32:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 20:32:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-23 20:32:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 20:32:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 20:32:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-23 20:32:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 20:32:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 20:32:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 20:32:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 20:32:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 20:32:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 20:32:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 20:32:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 20:32:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 20:32:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 20:32:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 20:32:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 20:32:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 20:32:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 20:32:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 20:32:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 20:32:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 20:32:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 20:32:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 20:32:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 20:32:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 20:32:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 20:32:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 20:32:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 20:32:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 20:32:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 20:32:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:32:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-23 20:32:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-10-23 20:32:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:32:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:32:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-10-23 20:32:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-10-23 20:32:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:32:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-10-23 20:32:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-23 20:32:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 20:32:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:32:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-10-23 20:32:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-10-23 20:32:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-10-23 20:32:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-10-23 20:32:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-10-23 20:32:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-10-23 20:32:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-10-23 20:32:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-10-23 20:32:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-10-23 20:32:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-10-23 20:32:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-10-23 20:32:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:32:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:32:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:32:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:32:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:32:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:32:23,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:32:23,962 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-10-23 20:32:23,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:32:23 BoogieIcfgContainer [2020-10-23 20:32:23,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:32:23,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:32:23,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:32:23,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:32:23,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:32:21" (1/3) ... [2020-10-23 20:32:23,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9f60cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:32:23, skipping insertion in model container [2020-10-23 20:32:23,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:32:22" (2/3) ... [2020-10-23 20:32:23,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9f60cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:32:23, skipping insertion in model container [2020-10-23 20:32:23,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:32:23" (3/3) ... [2020-10-23 20:32:23,974 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-10-23 20:32:23,987 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:32:23,996 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:32:24,010 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:32:24,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:32:24,035 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:32:24,036 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:32:24,036 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:32:24,036 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:32:24,036 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:32:24,036 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:32:24,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:32:24,059 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-10-23 20:32:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-23 20:32:24,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:32:24,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:32:24,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:32:24,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:32:24,083 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-10-23 20:32:24,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:32:24,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385092953] [2020-10-23 20:32:24,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:32:24,185 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:32:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:32:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-23 20:32:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:32:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:32:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:32:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:32:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:32:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:32:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:32:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-23 20:32:24,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385092953] [2020-10-23 20:32:24,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:32:24,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:32:24,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55460660] [2020-10-23 20:32:24,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:32:24,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:32:24,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:32:24,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:32:24,875 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-10-23 20:32:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:32:25,983 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-10-23 20:32:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:32:25,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-10-23 20:32:25,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:32:26,001 INFO L225 Difference]: With dead ends: 580 [2020-10-23 20:32:26,002 INFO L226 Difference]: Without dead ends: 281 [2020-10-23 20:32:26,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:32:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-23 20:32:26,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-10-23 20:32:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 20:32:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-10-23 20:32:26,108 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-10-23 20:32:26,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:32:26,109 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-10-23 20:32:26,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:32:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-10-23 20:32:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-23 20:32:26,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:32:26,114 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:32:26,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:32:26,115 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:32:26,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:32:26,115 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-10-23 20:32:26,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:32:26,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634429087] [2020-10-23 20:32:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:32:26,131 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:32:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:32:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-23 20:32:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:32:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:32:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:32:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:32:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:32:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:32:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:32:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:32:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-23 20:32:26,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634429087] [2020-10-23 20:32:26,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:32:26,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:32:26,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925408436] [2020-10-23 20:32:26,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:32:26,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:32:26,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:32:26,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:32:26,820 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-10-23 20:32:30,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:32:30,427 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-10-23 20:32:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:32:30,435 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-10-23 20:32:30,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:32:30,440 INFO L225 Difference]: With dead ends: 550 [2020-10-23 20:32:30,440 INFO L226 Difference]: Without dead ends: 302 [2020-10-23 20:32:30,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:32:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-23 20:32:30,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-10-23 20:32:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-23 20:32:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-10-23 20:32:30,505 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-10-23 20:32:30,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:32:30,505 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-10-23 20:32:30,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:32:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-10-23 20:32:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-23 20:32:30,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:32:30,510 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:32:30,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:32:30,511 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:32:30,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:32:30,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-10-23 20:32:30,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:32:30,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770876382] [2020-10-23 20:32:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:32:30,619 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 20:32:30,625 INFO L168 Benchmark]: Toolchain (without parser) took 9065.92 ms. Allocated memory was 154.1 MB in the beginning and 237.0 MB in the end (delta: 82.8 MB). Free memory was 129.1 MB in the beginning and 150.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:32:30,626 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:32:30,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 852.41 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 135.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:32:30,628 INFO L168 Benchmark]: Boogie Preprocessor took 154.61 ms. Allocated memory is still 154.1 MB. Free memory was 135.3 MB in the beginning and 131.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:32:30,629 INFO L168 Benchmark]: RCFGBuilder took 1389.87 ms. Allocated memory is still 154.1 MB. Free memory was 131.6 MB in the beginning and 127.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:32:30,630 INFO L168 Benchmark]: TraceAbstraction took 6656.17 ms. Allocated memory was 154.1 MB in the beginning and 237.0 MB in the end (delta: 82.8 MB). Free memory was 127.1 MB in the beginning and 150.5 MB in the end (delta: -23.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:32:30,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 852.41 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 135.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 154.61 ms. Allocated memory is still 154.1 MB. Free memory was 135.3 MB in the beginning and 131.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1389.87 ms. Allocated memory is still 154.1 MB. Free memory was 131.6 MB in the beginning and 127.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 81.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6656.17 ms. Allocated memory was 154.1 MB in the beginning and 237.0 MB in the end (delta: 82.8 MB). Free memory was 127.1 MB in the beginning and 150.5 MB in the end (delta: -23.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...