/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 OctagonDomain -i ../sv-benchmarks/c/ldv-regression/test_malloc-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:49:57,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:49:57,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:49:57,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:49:57,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:49:57,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:49:57,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:49:57,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:49:57,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:49:57,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:49:57,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:49:57,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:49:57,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:49:57,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:49:57,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:49:57,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:49:57,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:49:57,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:49:57,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:49:57,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:49:57,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:49:57,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:49:57,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:49:57,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:49:57,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:49:57,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:49:57,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:49:57,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:49:57,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:49:57,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:49:57,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:49:57,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:49:57,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:49:57,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:49:57,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:49:57,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:49:57,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:49:57,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:49:57,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:49:57,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:49:57,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:49:57,391 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 [2023-04-01 04:49:57,414 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:49:57,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:49:57,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:49:57,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:49:57,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:49:57,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:49:57,416 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:49:57,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:49:57,416 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:49:57,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:49:57,416 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:49:57,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:49:57,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:49:57,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:49:57,417 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:49:57,417 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:49:57,417 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:49:57,417 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:49:57,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:49:57,418 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:49:57,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:49:57,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:49:57,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:49:57,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:49:57,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:49:57,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:49:57,419 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:49:57,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:49:57,419 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:49:57,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:49:57,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:49:57,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:49:57,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:49:57,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:49:57,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:49:57,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:49:57,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:49:57,628 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:49:57,629 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:49:57,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_malloc-1.i [2023-04-01 04:49:58,624 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:49:58,890 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:49:58,890 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i [2023-04-01 04:49:58,896 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b5aa200/97ec14df33f9493aba501867e6227b9f/FLAG4cc20ebaf [2023-04-01 04:49:58,906 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b5aa200/97ec14df33f9493aba501867e6227b9f [2023-04-01 04:49:58,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:49:58,908 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:49:58,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:49:58,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:49:58,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:49:58,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:49:58" (1/1) ... [2023-04-01 04:49:58,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f446f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:58, skipping insertion in model container [2023-04-01 04:49:58,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:49:58" (1/1) ... [2023-04-01 04:49:58,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:49:58,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:49:59,085 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] [2023-04-01 04:49:59,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:49:59,193 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:49:59,206 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] [2023-04-01 04:49:59,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:49:59,252 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:49:59,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59 WrapperNode [2023-04-01 04:49:59,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:49:59,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:49:59,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:49:59,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:49:59,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:49:59,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:49:59,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:49:59,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:49:59,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (1/1) ... [2023-04-01 04:49:59,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:49:59,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:49:59,346 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) [2023-04-01 04:49:59,349 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 [2023-04-01 04:49:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:49:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:49:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:49:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 04:49:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:49:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:49:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:49:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 04:49:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 04:49:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:49:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2023-04-01 04:49:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2023-04-01 04:49:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-04-01 04:49:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2023-04-01 04:49:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2023-04-01 04:49:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-04-01 04:49:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2023-04-01 04:49:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2023-04-01 04:49:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2023-04-01 04:49:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-04-01 04:49:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2023-04-01 04:49:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure reallocarray [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2023-04-01 04:49:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:49:59,571 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:49:59,572 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:49:59,642 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:49:59,653 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:49:59,653 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 04:49:59,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:49:59 BoogieIcfgContainer [2023-04-01 04:49:59,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:49:59,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:49:59,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:49:59,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:49:59,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:49:58" (1/3) ... [2023-04-01 04:49:59,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3962d183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:49:59, skipping insertion in model container [2023-04-01 04:49:59,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:49:59" (2/3) ... [2023-04-01 04:49:59,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3962d183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:49:59, skipping insertion in model container [2023-04-01 04:49:59,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:49:59" (3/3) ... [2023-04-01 04:49:59,660 INFO L112 eAbstractionObserver]: Analyzing ICFG test_malloc-1.i [2023-04-01 04:49:59,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:49:59,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:49:59,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:49:59,715 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;@2a8b70da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:49:59,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:49:59,719 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) [2023-04-01 04:49:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-04-01 04:49:59,724 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:49:59,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:49:59,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:49:59,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:49:59,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1979349326, now seen corresponding path program 1 times [2023-04-01 04:49:59,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:49:59,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038035525] [2023-04-01 04:49:59,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:49:59,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:49:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:50:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:50:00,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:50:00,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038035525] [2023-04-01 04:50:00,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038035525] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:50:00,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:50:00,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 04:50:00,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116185488] [2023-04-01 04:50:00,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:50:00,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 04:50:00,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:50:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 04:50:00,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 04:50:00,064 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) [2023-04-01 04:50:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:50:00,127 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-04-01 04:50:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 04:50:00,129 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 [2023-04-01 04:50:00,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:50:00,133 INFO L225 Difference]: With dead ends: 23 [2023-04-01 04:50:00,133 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 04:50:00,135 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 [2023-04-01 04:50:00,137 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 [2023-04-01 04:50:00,137 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] [2023-04-01 04:50:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 04:50:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 04:50:00,152 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) [2023-04-01 04:50:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 04:50:00,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-04-01 04:50:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:50:00,153 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 04:50:00,153 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) [2023-04-01 04:50:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 04:50:00,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 04:50:00,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:50:00,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:50:00,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 04:50:00,165 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 04:50:00,165 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 04:50:00,165 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 13 18) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 13 18) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 13 18) the Hoare annotation is: true [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 387) no Hoare annotation was computed. [2023-04-01 04:50:00,166 INFO L899 garLoopResultBuilder]: For program point L385-1(lines 385 387) no Hoare annotation was computed. [2023-04-01 04:50:00,167 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 382 389) the Hoare annotation is: true [2023-04-01 04:50:00,167 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 382 389) no Hoare annotation was computed. [2023-04-01 04:50:00,167 INFO L895 garLoopResultBuilder]: At program point L386(line 386) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2023-04-01 04:50:00,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 04:50:00,167 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-01 04:50:00,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 04:50:00,167 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 04:50:00,169 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-04-01 04:50:00,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:50:00,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:50:00 BoogieIcfgContainer [2023-04-01 04:50:00,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:50:00,178 INFO L158 Benchmark]: Toolchain (without parser) took 1270.07ms. Allocated memory is still 237.0MB. Free memory was 206.1MB in the beginning and 133.3MB in the end (delta: 72.7MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2023-04-01 04:50:00,179 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 158.3MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:50:00,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.97ms. Allocated memory is still 237.0MB. Free memory was 205.7MB in the beginning and 190.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-04-01 04:50:00,181 INFO L158 Benchmark]: Boogie Preprocessor took 47.87ms. Allocated memory is still 237.0MB. Free memory was 190.0MB in the beginning and 187.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:50:00,184 INFO L158 Benchmark]: RCFGBuilder took 352.88ms. Allocated memory is still 237.0MB. Free memory was 187.5MB in the beginning and 168.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 04:50:00,184 INFO L158 Benchmark]: TraceAbstraction took 521.53ms. Allocated memory is still 237.0MB. Free memory was 167.6MB in the beginning and 133.3MB in the end (delta: 34.2MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-04-01 04:50:00,189 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 158.3MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 343.97ms. Allocated memory is still 237.0MB. Free memory was 205.7MB in the beginning and 190.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.87ms. Allocated memory is still 237.0MB. Free memory was 190.0MB in the beginning and 187.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 352.88ms. Allocated memory is still 237.0MB. Free memory was 187.5MB in the beginning and 168.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 521.53ms. Allocated memory is still 237.0MB. Free memory was 167.6MB in the beginning and 133.3MB in the end (delta: 34.2MB). Peak memory consumption was 34.6MB. 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! [2023-04-01 04:50:00,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...