/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-regression/test_malloc-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:49:37,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:49:37,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:49:37,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:49:37,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:49:37,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:49:37,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:49:37,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:49:37,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:49:37,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:49:37,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:49:37,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:49:37,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:49:37,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:49:37,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:49:37,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:49:37,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:49:37,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:49:37,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:49:37,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:49:37,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:49:37,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:49:37,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:49:37,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:49:37,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:49:37,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:49:37,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:49:37,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:49:37,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:49:37,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:49:37,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:49:37,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:49:37,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:49:37,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:49:37,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:49:37,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:49:37,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:49:37,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:49:37,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:49:37,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:49:37,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:49:37,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 22:49:37,367 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:49:37,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:49:37,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:49:37,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:49:37,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:49:37,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:49:37,371 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:49:37,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:49:37,371 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:49:37,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:49:37,371 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:49:37,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:49:37,372 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:49:37,372 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:49:37,372 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:49:37,372 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:49:37,372 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:49:37,372 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:49:37,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:49:37,373 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:49:37,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:49:37,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:49:37,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:49:37,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:49:37,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:49:37,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:49:37,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:49:37,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:49:37,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:49:37,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:49:37,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:49:37,574 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:49:37,575 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:49:37,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_malloc-1.i [2023-03-31 22:49:38,717 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:49:38,938 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:49:38,938 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i [2023-03-31 22:49:38,950 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259afa8e5/997f654a81b8457cbb1c1a269e0564b2/FLAGe11edc254 [2023-03-31 22:49:38,963 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259afa8e5/997f654a81b8457cbb1c1a269e0564b2 [2023-03-31 22:49:38,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:49:38,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:49:38,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:49:38,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:49:38,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:49:38,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:49:38" (1/1) ... [2023-03-31 22:49:38,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca9100c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:38, skipping insertion in model container [2023-03-31 22:49:38,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:49:38" (1/1) ... [2023-03-31 22:49:38,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:49:38,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:49:39,094 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i[813,826] [2023-03-31 22:49:39,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:49:39,200 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:49:39,214 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i[813,826] [2023-03-31 22:49:39,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:49:39,255 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:49:39,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39 WrapperNode [2023-03-31 22:49:39,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:49:39,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:49:39,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:49:39,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:49:39,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:49:39,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:49:39,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:49:39,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:49:39,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (1/1) ... [2023-03-31 22:49:39,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:49:39,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:49:39,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 22:49:39,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 22:49:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:49:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:49:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:49:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 22:49:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:49:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2023-03-31 22:49:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2023-03-31 22:49:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2023-03-31 22:49:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-03-31 22:49:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2023-03-31 22:49:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2023-03-31 22:49:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2023-03-31 22:49:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2023-03-31 22:49:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure reallocarray [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 22:49:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 22:49:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:49:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:49:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:49:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:49:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:49:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:49:39,498 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:49:39,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:49:39,583 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:49:39,595 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:49:39,595 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 22:49:39,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:49:39 BoogieIcfgContainer [2023-03-31 22:49:39,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:49:39,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:49:39,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:49:39,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:49:39,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:49:38" (1/3) ... [2023-03-31 22:49:39,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6625e39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:49:39, skipping insertion in model container [2023-03-31 22:49:39,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:49:39" (2/3) ... [2023-03-31 22:49:39,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6625e39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:49:39, skipping insertion in model container [2023-03-31 22:49:39,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:49:39" (3/3) ... [2023-03-31 22:49:39,603 INFO L112 eAbstractionObserver]: Analyzing ICFG test_malloc-1.i [2023-03-31 22:49:39,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:49:39,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:49:39,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:49:39,658 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44197338, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:49:39,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:49:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 22:49:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-03-31 22:49:39,668 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:49:39,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 22:49:39,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 22:49:39,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 22:49:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1979349326, now seen corresponding path program 1 times [2023-03-31 22:49:39,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:49:39,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600448153] [2023-03-31 22:49:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:49:39,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:49:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 22:49:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 22:49:40,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 22:49:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600448153] [2023-03-31 22:49:40,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600448153] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 22:49:40,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 22:49:40,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 22:49:40,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622666629] [2023-03-31 22:49:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 22:49:40,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 22:49:40,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 22:49:40,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 22:49:40,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 22:49:40,080 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:49:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 22:49:40,116 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-03-31 22:49:40,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 22:49:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-03-31 22:49:40,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 22:49:40,122 INFO L225 Difference]: With dead ends: 23 [2023-03-31 22:49:40,122 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 22:49:40,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-03-31 22:49:40,126 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 22:49:40,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 26 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 22:49:40,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 22:49:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 22:49:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 22:49:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 22:49:40,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-03-31 22:49:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 22:49:40,143 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 22:49:40,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 22:49:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 22:49:40,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 22:49:40,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 22:49:40,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 22:49:40,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 22:49:40,162 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-03-31 22:49:40,162 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-03-31 22:49:40,162 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-03-31 22:49:40,162 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2023-03-31 22:49:40,162 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 13 18) no Hoare annotation was computed. [2023-03-31 22:49:40,162 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 13 18) no Hoare annotation was computed. [2023-03-31 22:49:40,163 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 13 18) the Hoare annotation is: true [2023-03-31 22:49:40,163 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2023-03-31 22:49:40,164 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 22:49:40,164 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 22:49:40,164 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 387) no Hoare annotation was computed. [2023-03-31 22:49:40,165 INFO L899 garLoopResultBuilder]: For program point L385-1(lines 385 387) no Hoare annotation was computed. [2023-03-31 22:49:40,165 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 382 389) the Hoare annotation is: true [2023-03-31 22:49:40,165 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 382 389) no Hoare annotation was computed. [2023-03-31 22:49:40,165 INFO L895 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2023-03-31 22:49:40,165 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 22:49:40,165 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-03-31 22:49:40,165 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 22:49:40,165 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 22:49:40,168 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-03-31 22:49:40,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 22:49:40,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 10:49:40 BoogieIcfgContainer [2023-03-31 22:49:40,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 22:49:40,179 INFO L158 Benchmark]: Toolchain (without parser) took 1212.12ms. Allocated memory is still 377.5MB. Free memory was 324.9MB in the beginning and 331.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:49:40,179 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:49:40,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.17ms. Allocated memory is still 377.5MB. Free memory was 324.9MB in the beginning and 309.0MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-31 22:49:40,182 INFO L158 Benchmark]: Boogie Preprocessor took 30.45ms. Allocated memory is still 377.5MB. Free memory was 309.0MB in the beginning and 306.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 22:49:40,182 INFO L158 Benchmark]: RCFGBuilder took 310.06ms. Allocated memory is still 377.5MB. Free memory was 306.5MB in the beginning and 287.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 22:49:40,182 INFO L158 Benchmark]: TraceAbstraction took 579.79ms. Allocated memory is still 377.5MB. Free memory was 286.5MB in the beginning and 331.0MB in the end (delta: -44.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 22:49:40,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 285.17ms. Allocated memory is still 377.5MB. Free memory was 324.9MB in the beginning and 309.0MB in the end (delta: 15.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.45ms. Allocated memory is still 377.5MB. Free memory was 309.0MB in the beginning and 306.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 310.06ms. Allocated memory is still 377.5MB. Free memory was 306.5MB in the beginning and 287.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 579.79ms. Allocated memory is still 377.5MB. Free memory was 286.5MB in the beginning and 331.0MB in the end (delta: -44.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 9 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-03-31 22:49:40,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...