/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/ldv-regression/rule60_list.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:04:43,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:04:43,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:04:43,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 23:04:43,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 23:04:43,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 23:04:43,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 23:04:43,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 23:04:43,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 23:04:43,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 23:04:43,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 23:04:43,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 23:04:43,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:04:43,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:04:43,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:04:43,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:04:43,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:04:43,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:04:43,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:04:43,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:04:43,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:04:43,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:04:43,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:04:43,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:04:43,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:04:43,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:04:43,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:04:43,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:04:43,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:04:43,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:04:43,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:04:43,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:04:43,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:04:43,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:04:43,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:04:43,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:04:43,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:04:43,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:04:43,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:04:43,692 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:04:43,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:04:43,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:04:43,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:04:43,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:04:43,693 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:04:43,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:04:43,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:04:43,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:04:43,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:04:43,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:04:43,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:04:43,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:04:44,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:04:44,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:04:44,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:04:44,101 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:04:44,101 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:04:44,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list.i [2021-02-23 23:04:44,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872b3433d/6b510cdb2c99457cbc8ba1eb19b82f92/FLAG0450f068e [2021-02-23 23:04:44,930 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:04:44,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list.i [2021-02-23 23:04:44,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872b3433d/6b510cdb2c99457cbc8ba1eb19b82f92/FLAG0450f068e [2021-02-23 23:04:45,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872b3433d/6b510cdb2c99457cbc8ba1eb19b82f92 [2021-02-23 23:04:45,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:04:45,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:04:45,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:45,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:04:45,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:04:45,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3671cc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45, skipping insertion in model container [2021-02-23 23:04:45,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:04:45,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:04:45,465 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list.i[291,304] [2021-02-23 23:04:45,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:45,708 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:04:45,728 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list.i[291,304] [2021-02-23 23:04:45,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:45,874 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:04:45,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45 WrapperNode [2021-02-23 23:04:45,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:45,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:04:45,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:04:45,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:04:45,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:45,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:46,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (1/1) ... [2021-02-23 23:04:46,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:04:46,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:04:46,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:04:46,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:04:46,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (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 [2021-02-23 23:04:46,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:04:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:04:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:04:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 23:04:46,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-23 23:04:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-23 23:04:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-02-23 23:04:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-02-23 23:04:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-02-23 23:04:46,167 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-02-23 23:04:46,168 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-02-23 23:04:46,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:04:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:04:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:04:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 23:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 23:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 23:04:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 23:04:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 23:04:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 23:04:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 23:04:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 23:04:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 23:04:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 23:04:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 23:04:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 23:04:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 23:04:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 23:04:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 23:04:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 23:04:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 23:04:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-23 23:04:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-23 23:04:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-02-23 23:04:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-02-23 23:04:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-02-23 23:04:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 23:04:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 23:04:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 23:04:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 23:04:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 23:04:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 23:04:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 23:04:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 23:04:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 23:04:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 23:04:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 23:04:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 23:04:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 23:04:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 23:04:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 23:04:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 23:04:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 23:04:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 23:04:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 23:04:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 23:04:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 23:04:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 23:04:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 23:04:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 23:04:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 23:04:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 23:04:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 23:04:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 23:04:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 23:04:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 23:04:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 23:04:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 23:04:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 23:04:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 23:04:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 23:04:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 23:04:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 23:04:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 23:04:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 23:04:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:04:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 23:04:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 23:04:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 23:04:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 23:04:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 23:04:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 23:04:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 23:04:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 23:04:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 23:04:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 23:04:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 23:04:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 23:04:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 23:04:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 23:04:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 23:04:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 23:04:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 23:04:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 23:04:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 23:04:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 23:04:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 23:04:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 23:04:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 23:04:46,185 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 23:04:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 23:04:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 23:04:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 23:04:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 23:04:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 23:04:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 23:04:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 23:04:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 23:04:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 23:04:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-02-23 23:04:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:04:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:04:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-02-23 23:04:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:04:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 23:04:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:04:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:04:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-23 23:04:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:04:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:04:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:04:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:04:46,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:04:46,945 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 23:04:46,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:46 BoogieIcfgContainer [2021-02-23 23:04:46,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:04:46,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:04:46,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:04:46,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:04:46,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:04:45" (1/3) ... [2021-02-23 23:04:46,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e33107e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:46, skipping insertion in model container [2021-02-23 23:04:46,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:45" (2/3) ... [2021-02-23 23:04:46,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e33107e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:46, skipping insertion in model container [2021-02-23 23:04:46,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:46" (3/3) ... [2021-02-23 23:04:46,956 INFO L111 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2021-02-23 23:04:46,964 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:04:46,969 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:04:46,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:04:47,015 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:04:47,015 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:04:47,016 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:04:47,016 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:04:47,016 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:04:47,016 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:04:47,016 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:04:47,016 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:04:47,032 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2021-02-23 23:04:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-23 23:04:47,042 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:47,043 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] [2021-02-23 23:04:47,043 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:47,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:47,051 INFO L82 PathProgramCache]: Analyzing trace with hash -2136674315, now seen corresponding path program 1 times [2021-02-23 23:04:47,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:47,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297593176] [2021-02-23 23:04:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:47,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:47,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:47,436 WARN L141 QuantifierPusher]: treesize reduction 20, result has 25.9 percent of original size [2021-02-23 23:04:47,438 WARN L147 QuantifierPusher]: treesize reduction 20, result has 25.9 percent of original size 7 [2021-02-23 23:04:47,451 WARN L141 QuantifierPusher]: treesize reduction 24, result has 46.7 percent of original size [2021-02-23 23:04:47,453 WARN L147 QuantifierPusher]: treesize reduction 24, result has 46.7 percent of original size 21 [2021-02-23 23:04:47,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:04:47,492 WARN L141 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-02-23 23:04:47,493 WARN L147 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size 9 [2021-02-23 23:04:47,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:47,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:47,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:47,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:47,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:47,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:04:47,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297593176] [2021-02-23 23:04:47,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:04:47,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 23:04:47,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061405874] [2021-02-23 23:04:47,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:04:47,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:47,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:04:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:04:47,658 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 10 states. [2021-02-23 23:04:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:48,172 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2021-02-23 23:04:48,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:04:48,174 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2021-02-23 23:04:48,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:48,183 INFO L225 Difference]: With dead ends: 83 [2021-02-23 23:04:48,184 INFO L226 Difference]: Without dead ends: 47 [2021-02-23 23:04:48,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:04:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-02-23 23:04:48,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-02-23 23:04:48,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-02-23 23:04:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-02-23 23:04:48,254 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 28 [2021-02-23 23:04:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:48,255 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-02-23 23:04:48,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:04:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-02-23 23:04:48,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-02-23 23:04:48,256 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:48,256 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] [2021-02-23 23:04:48,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:04:48,257 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:48,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:48,258 INFO L82 PathProgramCache]: Analyzing trace with hash -590845153, now seen corresponding path program 1 times [2021-02-23 23:04:48,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:48,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508627714] [2021-02-23 23:04:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:48,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:48,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:48,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:48,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:04:48,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:04:48,391 WARN L141 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-02-23 23:04:48,392 WARN L147 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size 9 [2021-02-23 23:04:48,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:48,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:48,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:48,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:48,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:48,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-02-23 23:04:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:48,504 WARN L141 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size [2021-02-23 23:04:48,505 WARN L147 QuantifierPusher]: treesize reduction 6, result has 66.7 percent of original size 12 [2021-02-23 23:04:48,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:48,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 23:04:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:04:48,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508627714] [2021-02-23 23:04:48,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:04:48,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-23 23:04:48,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780230146] [2021-02-23 23:04:48,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 23:04:48,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:48,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 23:04:48,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:04:48,550 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 13 states. [2021-02-23 23:04:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:49,326 INFO L93 Difference]: Finished difference Result 49 states and 48 transitions. [2021-02-23 23:04:49,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:04:49,327 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2021-02-23 23:04:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:49,329 INFO L225 Difference]: With dead ends: 49 [2021-02-23 23:04:49,329 INFO L226 Difference]: Without dead ends: 46 [2021-02-23 23:04:49,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2021-02-23 23:04:49,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-02-23 23:04:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-02-23 23:04:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-02-23 23:04:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2021-02-23 23:04:49,346 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 36 [2021-02-23 23:04:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:49,346 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2021-02-23 23:04:49,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 23:04:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2021-02-23 23:04:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-23 23:04:49,348 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:49,348 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-23 23:04:49,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:04:49,349 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:49,349 INFO L82 PathProgramCache]: Analyzing trace with hash -325603537, now seen corresponding path program 1 times [2021-02-23 23:04:49,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:49,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520663571] [2021-02-23 23:04:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:49,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:49,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:49,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:49,443 WARN L141 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-02-23 23:04:49,444 WARN L147 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size 16 [2021-02-23 23:04:49,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 23:04:49,471 WARN L141 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-02-23 23:04:49,472 WARN L147 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size 9 [2021-02-23 23:04:49,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:49,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:49,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:49,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:49,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-02-23 23:04:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:49,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:49,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 23:04:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:49,597 WARN L141 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-02-23 23:04:49,598 WARN L147 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size 11 [2021-02-23 23:04:49,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:49,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 23:04:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:04:49,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520663571] [2021-02-23 23:04:49,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:04:49,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 23:04:49,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682204750] [2021-02-23 23:04:49,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 23:04:49,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:49,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 23:04:49,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:04:49,642 INFO L87 Difference]: Start difference. First operand 46 states and 45 transitions. Second operand 13 states. [2021-02-23 23:04:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:50,439 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2021-02-23 23:04:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:04:50,440 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2021-02-23 23:04:50,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:50,441 INFO L225 Difference]: With dead ends: 46 [2021-02-23 23:04:50,441 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:04:50,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2021-02-23 23:04:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:04:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:04:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:04:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:04:50,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-02-23 23:04:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:50,443 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:04:50,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 23:04:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:04:50,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:04:50,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:04:50,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:04:50,920 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 25 [2021-02-23 23:04:51,945 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 32 [2021-02-23 23:04:52,135 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 23:04:52,135 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 23:04:52,135 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 23:04:52,135 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 23:04:52,136 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 23:04:52,136 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:52,136 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 23:04:52,136 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:52,136 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-23 23:04:52,136 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 530) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,136 INFO L185 CegarLoopUtils]: At program point L530(line 530) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,136 INFO L185 CegarLoopUtils]: At program point L530-1(line 530) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,137 INFO L185 CegarLoopUtils]: At program point L530-2(line 530) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,137 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(~#head~0.base)| |~#head~0.base|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 23:04:52,137 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 23:04:52,137 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 23:04:52,137 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,137 INFO L185 CegarLoopUtils]: At program point L528(line 528) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,138 INFO L185 CegarLoopUtils]: At program point L527(line 527) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,138 INFO L185 CegarLoopUtils]: At program point list_delFINAL(lines 526 529) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (and (= (select (select |#memory_int| |list_del_#in~entry.base|) 8) 0) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,138 INFO L185 CegarLoopUtils]: At program point L527-1(line 527) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |list_del_#t~mem10| 1) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,138 INFO L185 CegarLoopUtils]: At program point L527-3(line 527) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,138 INFO L185 CegarLoopUtils]: At program point L527-4(line 527) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |list_del_#t~mem10| 1) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,139 INFO L185 CegarLoopUtils]: At program point list_delEXIT(lines 526 529) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (and (= (select (select |#memory_int| |list_del_#in~entry.base|) 8) 0) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,139 INFO L185 CegarLoopUtils]: At program point list_delENTRY(lines 526 529) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |list_del_#in~entry.offset| 0)) (not (= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2021-02-23 23:04:52,139 INFO L189 CegarLoopUtils]: For program point __bswap_32ENTRY(lines 166 170) no Hoare annotation was computed. [2021-02-23 23:04:52,139 INFO L189 CegarLoopUtils]: For program point L169(line 169) no Hoare annotation was computed. [2021-02-23 23:04:52,139 INFO L189 CegarLoopUtils]: For program point L169-1(line 169) no Hoare annotation was computed. [2021-02-23 23:04:52,139 INFO L189 CegarLoopUtils]: For program point __bswap_32FINAL(lines 166 170) no Hoare annotation was computed. [2021-02-23 23:04:52,139 INFO L189 CegarLoopUtils]: For program point __bswap_32EXIT(lines 166 170) no Hoare annotation was computed. [2021-02-23 23:04:52,139 INFO L189 CegarLoopUtils]: For program point __uint64_identityFINAL(lines 186 190) no Hoare annotation was computed. [2021-02-23 23:04:52,140 INFO L189 CegarLoopUtils]: For program point L189(line 189) no Hoare annotation was computed. [2021-02-23 23:04:52,140 INFO L189 CegarLoopUtils]: For program point __uint64_identityENTRY(lines 186 190) no Hoare annotation was computed. [2021-02-23 23:04:52,140 INFO L189 CegarLoopUtils]: For program point __uint64_identityEXIT(lines 186 190) no Hoare annotation was computed. [2021-02-23 23:04:52,140 INFO L185 CegarLoopUtils]: At program point list_addENTRY(lines 522 525) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,140 INFO L185 CegarLoopUtils]: At program point list_addFINAL(lines 522 525) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= list_add_~new.base |list_add_#in~new.base|) (= (select (select |#memory_int| |list_add_#in~new.base|) 8) 1) (= |list_add_#in~new.offset| list_add_~new.offset)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,140 INFO L185 CegarLoopUtils]: At program point L524(line 524) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) [2021-02-23 23:04:52,141 INFO L185 CegarLoopUtils]: At program point L523(line 523) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) [2021-02-23 23:04:52,141 INFO L185 CegarLoopUtils]: At program point L522(lines 522 525) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) [2021-02-23 23:04:52,141 INFO L185 CegarLoopUtils]: At program point L523-1(line 523) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |list_add_#t~mem9| 0) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,141 INFO L185 CegarLoopUtils]: At program point L523-3(line 523) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,142 INFO L185 CegarLoopUtils]: At program point L523-4(line 523) the Hoare annotation is: (let ((.cse0 (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0))) (.cse1 (not (= |list_add_#in~new.offset| 0))) (.cse2 (not (= |~#head~0.offset| 0)))) (and (or .cse0 (= |list_add_#t~mem9| 0) .cse1 .cse2) (or .cse0 .cse1 .cse2 (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))))) [2021-02-23 23:04:52,142 INFO L185 CegarLoopUtils]: At program point list_addEXIT(lines 522 525) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= list_add_~new.base |list_add_#in~new.base|) (= (select (select |#memory_int| |list_add_#in~new.base|) 8) 1) (= |list_add_#in~new.offset| list_add_~new.offset)) (not (= |list_add_#in~new.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,142 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) the Hoare annotation is: true [2021-02-23 23:04:52,142 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 4 7) the Hoare annotation is: true [2021-02-23 23:04:52,142 INFO L192 CegarLoopUtils]: At program point L6(line 6) the Hoare annotation is: true [2021-02-23 23:04:52,143 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 4 7) the Hoare annotation is: true [2021-02-23 23:04:52,143 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2021-02-23 23:04:52,143 INFO L189 CegarLoopUtils]: For program point __bswap_64ENTRY(lines 171 175) no Hoare annotation was computed. [2021-02-23 23:04:52,143 INFO L189 CegarLoopUtils]: For program point L174(line 174) no Hoare annotation was computed. [2021-02-23 23:04:52,143 INFO L189 CegarLoopUtils]: For program point L174-1(line 174) no Hoare annotation was computed. [2021-02-23 23:04:52,143 INFO L189 CegarLoopUtils]: For program point __bswap_64FINAL(lines 171 175) no Hoare annotation was computed. [2021-02-23 23:04:52,143 INFO L189 CegarLoopUtils]: For program point __bswap_64EXIT(lines 171 175) no Hoare annotation was computed. [2021-02-23 23:04:52,143 INFO L189 CegarLoopUtils]: For program point __uint16_identityENTRY(lines 176 180) no Hoare annotation was computed. [2021-02-23 23:04:52,144 INFO L189 CegarLoopUtils]: For program point __uint16_identityEXIT(lines 176 180) no Hoare annotation was computed. [2021-02-23 23:04:52,144 INFO L189 CegarLoopUtils]: For program point __uint16_identityFINAL(lines 176 180) no Hoare annotation was computed. [2021-02-23 23:04:52,144 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2021-02-23 23:04:52,144 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,144 INFO L185 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,144 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 23:04:52,144 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (= |~#head~0.offset| 0) [2021-02-23 23:04:52,144 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 531 541) the Hoare annotation is: (or (not (= |~#head~0.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2021-02-23 23:04:52,145 INFO L185 CegarLoopUtils]: At program point L537(line 537) the Hoare annotation is: (or (and (= main_~dev~0.offset 0) (= (select (select |#memory_int| main_~dev~0.base) (+ |~#head~0.offset| 8)) 0) (= |main_#t~malloc11.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,145 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 531 541) the Hoare annotation is: (or (and (= main_~dev~0.offset 0) (= |main_#t~malloc11.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,145 INFO L185 CegarLoopUtils]: At program point L536(line 536) the Hoare annotation is: (or (not (= |~#head~0.offset| 0)) (and (= main_~dev~0.offset 0) (= (select (select |#memory_int| main_~dev~0.base) 8) 1) (= |main_#t~malloc11.offset| 0))) [2021-02-23 23:04:52,145 INFO L185 CegarLoopUtils]: At program point L535(line 535) the Hoare annotation is: (or (not (= |~#head~0.offset| 0)) (and (= main_~dev~0.offset 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |main_#t~malloc11.offset| 0))) [2021-02-23 23:04:52,145 INFO L185 CegarLoopUtils]: At program point L534(lines 534 539) the Hoare annotation is: (or (not (= |~#head~0.offset| 0)) (and (= main_~dev~0.offset 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |main_#t~malloc11.offset| 0))) [2021-02-23 23:04:52,146 INFO L185 CegarLoopUtils]: At program point L535-1(line 535) the Hoare annotation is: (or (and (= main_~dev~0.offset 0) (= |main_#t~malloc11.offset| 0) (= (select (select |#memory_int| main_~dev~0.base) (+ main_~dev~0.offset 8)) 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,146 INFO L185 CegarLoopUtils]: At program point L533(line 533) the Hoare annotation is: (or (not (= |~#head~0.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2021-02-23 23:04:52,146 INFO L185 CegarLoopUtils]: At program point L534-1(lines 534 539) the Hoare annotation is: (or (and (= main_~dev~0.offset 0) (= |main_#t~malloc11.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,146 INFO L185 CegarLoopUtils]: At program point L533-1(line 533) the Hoare annotation is: (or (not (= |~#head~0.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |main_#t~malloc11.offset| 0))) [2021-02-23 23:04:52,159 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 531 541) the Hoare annotation is: (or (and (= main_~dev~0.offset 0) (= |main_#t~malloc11.offset| 0)) (not (= |~#head~0.offset| 0))) [2021-02-23 23:04:52,159 INFO L189 CegarLoopUtils]: For program point __uint32_identityFINAL(lines 181 185) no Hoare annotation was computed. [2021-02-23 23:04:52,159 INFO L189 CegarLoopUtils]: For program point __uint32_identityENTRY(lines 181 185) no Hoare annotation was computed. [2021-02-23 23:04:52,160 INFO L189 CegarLoopUtils]: For program point L184(line 184) no Hoare annotation was computed. [2021-02-23 23:04:52,160 INFO L189 CegarLoopUtils]: For program point __uint32_identityEXIT(lines 181 185) no Hoare annotation was computed. [2021-02-23 23:04:52,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:04:52 BoogieIcfgContainer [2021-02-23 23:04:52,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:04:52,180 INFO L168 Benchmark]: Toolchain (without parser) took 6933.00 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 125.4 MB in the beginning and 216.8 MB in the end (delta: -91.4 MB). Peak memory consumption was 132.2 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:52,180 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:04:52,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.58 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 102.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:52,182 INFO L168 Benchmark]: Boogie Preprocessor took 148.28 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 132.9 MB in the end (delta: -30.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:52,183 INFO L168 Benchmark]: RCFGBuilder took 921.06 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 91.8 MB in the end (delta: 41.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:52,184 INFO L168 Benchmark]: TraceAbstraction took 5229.72 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 91.3 MB in the beginning and 216.8 MB in the end (delta: -125.5 MB). Peak memory consumption was 98.3 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:52,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 615.58 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 102.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.28 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 132.9 MB in the end (delta: -30.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 921.06 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 91.8 MB in the end (delta: 41.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5229.72 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 91.3 MB in the beginning and 216.8 MB in the end (delta: -125.5 MB). Peak memory consumption was 98.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 526]: Procedure Contract for list_del Derived contract for procedure list_del: ((!(entry == 0) || !(head == 0)) || ((unknown-#memory_int-unknown[entry][8] == 0 && entry == entry) && entry == entry)) || !(\old(unknown-#memory_int-unknown)[entry][8] == 1) - ProcedureContractResult [Line: 4]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 522]: Procedure Contract for list_add Derived contract for procedure list_add: ((!(\old(unknown-#memory_int-unknown)[new][8] == 0) || ((new == new && unknown-#memory_int-unknown[new][8] == 1) && new == new)) || !(new == 0)) || !(head == 0) - ProcedureContractResult [Line: 531]: Procedure Contract for main Derived contract for procedure main: (dev == 0 && malloc(sizeof(*dev)) == 0) || !(head == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 199 SDslu, 124 SDs, 0 SdLazy, 763 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 92 PreInvPairs, 111 NumberOfFragments, 813 HoareAnnotationTreeSize, 92 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 51 FomulaSimplificationsInter, 1313 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 22961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...