/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:16:28,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:16:28,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:16:28,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:16:28,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:16:28,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:16:28,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:16:28,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:16:28,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:16:28,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:16:28,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:16:28,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:16:28,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:16:28,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:16:28,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:16:28,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:16:28,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 00:16:28,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:16:28,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:16:28,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:16:28,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-22 00:16:28,388 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:16:28,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:16:28,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:16:28,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:16:28,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:16:28,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:16:28,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:16:28,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:16:28,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:16:28,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:16:28,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:16:28,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:16:28,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:16:28,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:16:28,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:16:28,394 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:16:28,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:16:28,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:16:28,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:16:28,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:16:28,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:16:28,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:16:28,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:16:28,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:16:28,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:16:28,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:16:28,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:16:28,868 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:16:28,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i [2021-02-22 00:16:28,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6412a8a0c/495a8bbeda8a4deb9bf7e36c264b68b0/FLAGdd176c074 [2021-02-22 00:16:29,745 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:16:29,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i [2021-02-22 00:16:29,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6412a8a0c/495a8bbeda8a4deb9bf7e36c264b68b0/FLAGdd176c074 [2021-02-22 00:16:29,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6412a8a0c/495a8bbeda8a4deb9bf7e36c264b68b0 [2021-02-22 00:16:29,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:16:29,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:16:29,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:29,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:16:30,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:16:30,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:29" (1/1) ... [2021-02-22 00:16:30,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461a72c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30, skipping insertion in model container [2021-02-22 00:16:30,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:29" (1/1) ... [2021-02-22 00:16:30,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:16:30,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:16:30,517 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i[22636,22649] [2021-02-22 00:16:30,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:16:30,561 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:16:30,595 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/sll_to_dll_rev-1.i[22636,22649] [2021-02-22 00:16:30,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:16:30,696 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:16:30,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30 WrapperNode [2021-02-22 00:16:30,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:16:30,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:16:30,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:16:30,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:16:30,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (1/1) ... [2021-02-22 00:16:30,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:16:30,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:16:30,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:16:30,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:16:30,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (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 [2021-02-22 00:16:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-22 00:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-22 00:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-02-22 00:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_node [2021-02-22 00:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_node [2021-02-22 00:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sll [2021-02-22 00:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_back_link [2021-02-22 00:16:30,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reverse_dll [2021-02-22 00:16:30,969 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_fw_link [2021-02-22 00:16:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_next [2021-02-22 00:16:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure check_seq_prev [2021-02-22 00:16:30,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:16:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:16:30,971 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:16:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-22 00:16:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-22 00:16:30,972 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:16:30,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:16:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-22 00:16:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-22 00:16:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-22 00:16:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-22 00:16:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-22 00:16:30,976 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-22 00:16:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-22 00:16:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-22 00:16:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-22 00:16:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-22 00:16:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-22 00:16:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-22 00:16:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-22 00:16:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-22 00:16:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-22 00:16:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-22 00:16:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-22 00:16:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-22 00:16:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-22 00:16:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-22 00:16:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-22 00:16:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-22 00:16:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-22 00:16:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-22 00:16:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-22 00:16:30,983 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-22 00:16:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-22 00:16:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-22 00:16:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-22 00:16:30,984 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-22 00:16:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-22 00:16:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-22 00:16:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-22 00:16:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-22 00:16:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 00:16:30,985 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-22 00:16:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-22 00:16:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 00:16:30,986 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-22 00:16:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-22 00:16:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-22 00:16:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-22 00:16:30,987 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-22 00:16:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-22 00:16:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 00:16:30,988 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-22 00:16:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-22 00:16:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-22 00:16:30,989 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-22 00:16:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-22 00:16:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-22 00:16:30,990 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-22 00:16:30,991 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-22 00:16:30,992 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-22 00:16:30,993 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-22 00:16:30,994 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-22 00:16:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-22 00:16:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-22 00:16:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:16:30,995 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_node [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure chain_node [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure create_sll [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-22 00:16:30,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:16:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure init_back_link [2021-02-22 00:16:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure reverse_dll [2021-02-22 00:16:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure remove_fw_link [2021-02-22 00:16:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_next [2021-02-22 00:16:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure check_seq_prev [2021-02-22 00:16:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:16:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:16:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:16:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:16:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:16:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:16:32,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:16:32,165 INFO L299 CfgBuilder]: Removed 33 assume(true) statements. [2021-02-22 00:16:32,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:32 BoogieIcfgContainer [2021-02-22 00:16:32,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:16:32,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:16:32,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:16:32,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:16:32,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:16:29" (1/3) ... [2021-02-22 00:16:32,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da006a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:32, skipping insertion in model container [2021-02-22 00:16:32,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:30" (2/3) ... [2021-02-22 00:16:32,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da006a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:32, skipping insertion in model container [2021-02-22 00:16:32,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:32" (3/3) ... [2021-02-22 00:16:32,184 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev-1.i [2021-02-22 00:16:32,191 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:16:32,197 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:16:32,216 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:16:32,241 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:16:32,241 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:16:32,241 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:16:32,242 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:16:32,242 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:16:32,242 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:16:32,242 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:16:32,242 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:16:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states. [2021-02-22 00:16:32,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-22 00:16:32,283 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:16:32,284 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-22 00:16:32,284 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:16:32,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:16:32,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1428598154, now seen corresponding path program 1 times [2021-02-22 00:16:32,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:16:32,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285731151] [2021-02-22 00:16:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:16:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:16:32,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:16:32,437 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Proofs are not supported at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getProof(Scriptor.java:166) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:107) 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:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 00:16:32,442 INFO L168 Benchmark]: Toolchain (without parser) took 2462.93 ms. Allocated memory is still 153.1 MB. Free memory was 128.2 MB in the beginning and 106.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:32,443 INFO L168 Benchmark]: CDTParser took 1.20 ms. Allocated memory is still 153.1 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:16:32,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.04 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 134.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:32,445 INFO L168 Benchmark]: Boogie Preprocessor took 158.29 ms. Allocated memory is still 153.1 MB. Free memory was 134.5 MB in the beginning and 130.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:32,446 INFO L168 Benchmark]: RCFGBuilder took 1311.31 ms. Allocated memory is still 153.1 MB. Free memory was 130.9 MB in the beginning and 122.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 64.3 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:32,447 INFO L168 Benchmark]: TraceAbstraction took 263.29 ms. Allocated memory is still 153.1 MB. Free memory was 122.2 MB in the beginning and 106.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:16:32,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20 ms. Allocated memory is still 153.1 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 700.04 ms. Allocated memory is still 153.1 MB. Free memory was 127.0 MB in the beginning and 134.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.29 ms. Allocated memory is still 153.1 MB. Free memory was 134.5 MB in the beginning and 130.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1311.31 ms. Allocated memory is still 153.1 MB. Free memory was 130.9 MB in the beginning and 122.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 64.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 263.29 ms. Allocated memory is still 153.1 MB. Free memory was 122.2 MB in the beginning and 106.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Proofs are not supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Proofs are not supported: de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getProof(Scriptor.java:166) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...