/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:27:22,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:27:22,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:27:22,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:27:22,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:27:22,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:27:22,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:27:22,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:27:22,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:27:22,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:27:22,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:27:22,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:27:22,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:27:22,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:27:22,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:27:22,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:27:22,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:27:22,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:27:22,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:27:22,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:27:22,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:27:22,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:27:22,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:27:22,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:27:22,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:27:22,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:27:22,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:27:22,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:27:22,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:27:22,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:27:22,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:27:22,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:27:22,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:27:22,521 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:27:22,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:27:22,521 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:27:22,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:27:22,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:27:22,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:27:22,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:27:22,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:27:22,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:27:22,523 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:27:22,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:27:22,523 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:27:22,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:27:22,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:27:22,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:27:22,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:27:22,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:27:22,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:27:22,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:27:22,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:27:22,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:27:22,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:27:22,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:27:22,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:27:22,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:27:22,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:27:22,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:27:22,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:27:22,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:27:22,885 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:27:22,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2019-11-07 00:27:22,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e9b6724/5914c3862dc94555bee814fa7ba0f626/FLAGcb7de0e85 [2019-11-07 00:27:23,484 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:27:23,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2019-11-07 00:27:23,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e9b6724/5914c3862dc94555bee814fa7ba0f626/FLAGcb7de0e85 [2019-11-07 00:27:23,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1e9b6724/5914c3862dc94555bee814fa7ba0f626 [2019-11-07 00:27:23,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:27:23,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:27:23,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:27:23,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:27:23,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:27:23,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:27:23" (1/1) ... [2019-11-07 00:27:23,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fd8d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:23, skipping insertion in model container [2019-11-07 00:27:23,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:27:23" (1/1) ... [2019-11-07 00:27:23,809 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:27:23,856 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:27:24,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:27:24,246 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:27:24,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:27:24,351 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:27:24,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24 WrapperNode [2019-11-07 00:27:24,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:27:24,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:27:24,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:27:24,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:27:24,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... [2019-11-07 00:27:24,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:27:24,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:27:24,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:27:24,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:27:24,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:27:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:27:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:27:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-11-07 00:27:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2019-11-07 00:27:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:27:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2019-11-07 00:27:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2019-11-07 00:27:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:27:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:27:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:27:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:27:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:27:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:27:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:27:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:27:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:27:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:27:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:27:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:27:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:27:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:27:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:27:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:27:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:27:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:27:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:27:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:27:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:27:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:27:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:27:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:27:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:27:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:27:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:27:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:27:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:27:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:27:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:27:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:27:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:27:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:27:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-11-07 00:27:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:27:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:27:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:27:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:27:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:27:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:27:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:27:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:27:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:27:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:27:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:27:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:27:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:27:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:27:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:27:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:27:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:27:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:27:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:27:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:27:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:27:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:27:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2019-11-07 00:27:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:27:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-11-07 00:27:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2019-11-07 00:27:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2019-11-07 00:27:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2019-11-07 00:27:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2019-11-07 00:27:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2019-11-07 00:27:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2019-11-07 00:27:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2019-11-07 00:27:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2019-11-07 00:27:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2019-11-07 00:27:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2019-11-07 00:27:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2019-11-07 00:27:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2019-11-07 00:27:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2019-11-07 00:27:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2019-11-07 00:27:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2019-11-07 00:27:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2019-11-07 00:27:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2019-11-07 00:27:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2019-11-07 00:27:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2019-11-07 00:27:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2019-11-07 00:27:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2019-11-07 00:27:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2019-11-07 00:27:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2019-11-07 00:27:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2019-11-07 00:27:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure open [2019-11-07 00:27:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2019-11-07 00:27:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2019-11-07 00:27:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2019-11-07 00:27:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2019-11-07 00:27:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2019-11-07 00:27:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2019-11-07 00:27:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-11-07 00:27:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:27:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2019-11-07 00:27:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2019-11-07 00:27:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:27:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:27:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:27:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:27:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:27:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:27:25,053 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:27:25,054 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 00:27:25,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:27:25 BoogieIcfgContainer [2019-11-07 00:27:25,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:27:25,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:27:25,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:27:25,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:27:25,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:27:23" (1/3) ... [2019-11-07 00:27:25,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d1d8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:27:25, skipping insertion in model container [2019-11-07 00:27:25,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:24" (2/3) ... [2019-11-07 00:27:25,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d1d8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:27:25, skipping insertion in model container [2019-11-07 00:27:25,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:27:25" (3/3) ... [2019-11-07 00:27:25,076 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-11-07 00:27:25,087 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:27:25,094 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:27:25,107 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:27:25,138 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:27:25,139 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:27:25,139 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:27:25,139 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:27:25,139 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:27:25,139 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:27:25,140 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:27:25,140 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:27:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-11-07 00:27:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 00:27:25,171 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:27:25,172 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:27:25,174 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:27:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:27:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash -722045737, now seen corresponding path program 1 times [2019-11-07 00:27:25,188 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:27:25,189 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096444061] [2019-11-07 00:27:25,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:27:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:27:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:27:25,385 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096444061] [2019-11-07 00:27:25,386 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:27:25,386 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:27:25,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101062760] [2019-11-07 00:27:25,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:27:25,395 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:27:25,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:27:25,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:27:25,413 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2019-11-07 00:27:25,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:27:25,456 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2019-11-07 00:27:25,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:27:25,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-07 00:27:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:27:25,469 INFO L225 Difference]: With dead ends: 47 [2019-11-07 00:27:25,469 INFO L226 Difference]: Without dead ends: 19 [2019-11-07 00:27:25,473 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:27:25,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-07 00:27:25,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-07 00:27:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-07 00:27:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-07 00:27:25,512 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2019-11-07 00:27:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:27:25,512 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-07 00:27:25,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:27:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-07 00:27:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 00:27:25,513 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:27:25,514 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:27:25,514 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:27:25,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:27:25,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1115072747, now seen corresponding path program 1 times [2019-11-07 00:27:25,515 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:27:25,515 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308574596] [2019-11-07 00:27:25,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:27:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 00:27:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 00:27:25,647 INFO L172 FreeRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-11-07 00:27:25,648 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-07 00:27:25,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:27:25 BoogieIcfgContainer [2019-11-07 00:27:25,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:27:25,725 INFO L168 Benchmark]: Toolchain (without parser) took 1932.06 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 85.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:25,726 INFO L168 Benchmark]: CDTParser took 1.47 ms. Allocated memory is still 135.8 MB. Free memory is still 118.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 00:27:25,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.45 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 162.6 MB in the end (delta: -63.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:25,730 INFO L168 Benchmark]: Boogie Preprocessor took 69.67 ms. Allocated memory is still 199.8 MB. Free memory was 162.6 MB in the beginning and 160.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:25,731 INFO L168 Benchmark]: RCFGBuilder took 633.28 ms. Allocated memory is still 199.8 MB. Free memory was 160.6 MB in the beginning and 115.1 MB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:25,732 INFO L168 Benchmark]: TraceAbstraction took 662.76 ms. Allocated memory is still 199.8 MB. Free memory was 115.1 MB in the beginning and 85.7 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:25,742 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47 ms. Allocated memory is still 135.8 MB. Free memory is still 118.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 559.45 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 162.6 MB in the end (delta: -63.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.67 ms. Allocated memory is still 199.8 MB. Free memory was 162.6 MB in the beginning and 160.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 633.28 ms. Allocated memory is still 199.8 MB. Free memory was 160.6 MB in the beginning and 115.1 MB in the end (delta: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 662.76 ms. Allocated memory is still 199.8 MB. Free memory was 115.1 MB in the beginning and 85.7 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 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; [L1158] CALL, EXPR l_open("unknown",00) VAL [\old(flags)=0, \old(globalState)=0, file={-1:0}, globalState=0] [L1170] int fd = open(file,flags); VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={-1:0}, file={-1:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={-1:0}, file={-1:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] return fd; VAL [\old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={-1:0}, file={-1:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] RET, EXPR l_open("unknown",00) VAL [\old(argc)=108, \old(globalState)=0, argc=108, argv={105:103}, argv={105:103}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL [\old(argc)=108, \old(globalState)=0, argc=108, argv={105:103}, argv={105:103}, 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, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 9 SDslu, 16 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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...