/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:05:18,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:05:18,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:05:18,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:05:18,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:05:18,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:05:18,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:05:18,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:05:18,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:05:18,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:05:18,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:05:18,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:05:18,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:05:18,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:05:18,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:05:18,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:05:18,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:05:18,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:05:18,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:05:18,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:05:18,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:05:18,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:05:18,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:05:18,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:05:18,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:05:18,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:05:18,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:05:18,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:05:18,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:05:18,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:05:18,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:05:18,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:05:18,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:05:18,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:05:18,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:05:18,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:05:18,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:05:18,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:05:18,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:05:18,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:05:18,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:05:18,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:05:18,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:05:18,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:05:18,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:05:18,869 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:05:18,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:05:18,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:05:18,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:05:18,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:05:18,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:05:18,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:05:18,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:05:18,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:05:18,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:05:18,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:05:18,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:05:18,872 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:05:18,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:05:18,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:05:18,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:05:18,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:05:18,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:05:18,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:05:18,874 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-09-04 22:05:19,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:05:19,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:05:19,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:05:19,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:05:19,332 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:05:19,334 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-09-04 22:05:19,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6db445502/cc9f6dd73ae8442f91e55a4211945295/FLAG955fc15e9 [2020-09-04 22:05:20,040 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:05:20,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-09-04 22:05:20,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6db445502/cc9f6dd73ae8442f91e55a4211945295/FLAG955fc15e9 [2020-09-04 22:05:20,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6db445502/cc9f6dd73ae8442f91e55a4211945295 [2020-09-04 22:05:20,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:05:20,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:05:20,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:20,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:05:20,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:05:20,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:20" (1/1) ... [2020-09-04 22:05:20,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726a206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:20, skipping insertion in model container [2020-09-04 22:05:20,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:20" (1/1) ... [2020-09-04 22:05:20,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:05:20,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:05:20,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:20,953 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:05:21,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:21,105 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:05:21,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21 WrapperNode [2020-09-04 22:05:21,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:21,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:05:21,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:05:21,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:05:21,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... [2020-09-04 22:05:21,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:05:21,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:05:21,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:05:21,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:05:21,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:05:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:05:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:05:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-04 22:05:21,239 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-09-04 22:05:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:05:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-09-04 22:05:21,240 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-09-04 22:05:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:05:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 22:05:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 22:05:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 22:05:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 22:05:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 22:05:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 22:05:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 22:05:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 22:05:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 22:05:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 22:05:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 22:05:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 22:05:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 22:05:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 22:05:21,243 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 22:05:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 22:05:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 22:05:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 22:05:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 22:05:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 22:05:21,244 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 22:05:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 22:05:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 22:05:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 22:05:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 22:05:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 22:05:21,245 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 22:05:21,246 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 22:05:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 22:05:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 22:05:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 22:05:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 22:05:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 22:05:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 22:05:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 22:05:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 22:05:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 22:05:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 22:05:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 22:05:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 22:05:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 22:05:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 22:05:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 22:05:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 22:05:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 22:05:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 22:05:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 22:05:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 22:05:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 22:05:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 22:05:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 22:05:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 22:05:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 22:05:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 22:05:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 22:05:21,254 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 22:05:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 22:05:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 22:05:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 22:05:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 22:05:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 22:05:21,255 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-09-04 22:05:21,256 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-09-04 22:05:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-09-04 22:05:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-09-04 22:05:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-09-04 22:05:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-09-04 22:05:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-09-04 22:05:21,257 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-09-04 22:05:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-09-04 22:05:21,259 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-09-04 22:05:21,260 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-09-04 22:05:21,260 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-09-04 22:05:21,260 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-09-04 22:05:21,260 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-09-04 22:05:21,260 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-09-04 22:05:21,260 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-09-04 22:05:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-09-04 22:05:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:05:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:05:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 22:05:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:05:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:05:21,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:05:21,745 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:05:21,745 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 22:05:21,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:21 BoogieIcfgContainer [2020-09-04 22:05:21,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:05:21,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:05:21,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:05:21,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:05:21,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:05:20" (1/3) ... [2020-09-04 22:05:21,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3b93d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:21, skipping insertion in model container [2020-09-04 22:05:21,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:21" (2/3) ... [2020-09-04 22:05:21,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3b93d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:21, skipping insertion in model container [2020-09-04 22:05:21,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:21" (3/3) ... [2020-09-04 22:05:21,766 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-09-04 22:05:21,776 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:05:21,784 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:05:21,805 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:05:21,828 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:05:21,828 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:05:21,828 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:05:21,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:05:21,829 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:05:21,829 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:05:21,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:05:21,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:05:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-09-04 22:05:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-04 22:05:21,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:21,871 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] [2020-09-04 22:05:21,872 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:21,878 INFO L82 PathProgramCache]: Analyzing trace with hash 86369829, now seen corresponding path program 1 times [2020-09-04 22:05:21,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:21,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82341748] [2020-09-04 22:05:21,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 22:05:22,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 22:05:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 22:05:22,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 22:05:22,134 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 22:05:22,135 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 22:05:22,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:05:22,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:05:22 BoogieIcfgContainer [2020-09-04 22:05:22,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:05:22,194 INFO L168 Benchmark]: Toolchain (without parser) took 1864.91 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 104.1 MB in the beginning and 102.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:22,195 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:05:22,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.48 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 103.9 MB in the beginning and 169.3 MB in the end (delta: -65.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:22,198 INFO L168 Benchmark]: Boogie Preprocessor took 58.25 ms. Allocated memory is still 205.5 MB. Free memory was 169.3 MB in the beginning and 166.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:22,199 INFO L168 Benchmark]: RCFGBuilder took 586.56 ms. Allocated memory is still 205.5 MB. Free memory was 166.6 MB in the beginning and 119.6 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:22,200 INFO L168 Benchmark]: TraceAbstraction took 436.68 ms. Allocated memory is still 205.5 MB. Free memory was 118.9 MB in the beginning and 102.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:22,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.5 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.48 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 103.9 MB in the beginning and 169.3 MB in the end (delta: -65.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.25 ms. Allocated memory is still 205.5 MB. Free memory was 169.3 MB in the beginning and 166.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 586.56 ms. Allocated memory is still 205.5 MB. Free memory was 166.6 MB in the beginning and 119.6 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 436.68 ms. Allocated memory is still 205.5 MB. Free memory was 118.9 MB in the beginning and 102.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; VAL [\old(globalState)=106, globalState=0] [L1158] CALL, EXPR l_open("unknown",00) VAL [\old(flags)=0, \old(globalState)=0, file={2:0}, globalState=0] [L1170] int fd = open(file,flags); VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={2:0}, file={2:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={2:0}, file={2:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] return fd; VAL [\old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={2:0}, file={2:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] RET, EXPR l_open("unknown",00) VAL [\old(argc)=101, \old(globalState)=0, argc=101, argv={105:104}, argv={105:104}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); VAL [\old(argc)=101, \old(globalState)=0, argc=101, argv={105:104}, argv={105:104}, file=0, globalState=0, l_open("unknown",00)=0] [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL [\old(argc)=101, \old(globalState)=0, argc=101, argv={105:104}, argv={105:104}, cbuf={-1:0}, file=0, globalState=0, malloc(sizeof(char)*100)={-1:0}] [L1160] CALL l_read(file,cbuf,99) VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={-1:0}, globalState=0] [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={-1:0}, cbuf={-1:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...