/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 EqDomain -i ../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 08:40:01,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 08:40:01,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 08:40:01,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 08:40:01,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 08:40:01,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 08:40:01,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 08:40:01,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 08:40:01,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 08:40:01,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 08:40:01,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 08:40:01,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 08:40:01,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 08:40:01,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 08:40:01,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 08:40:01,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 08:40:01,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 08:40:01,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 08:40:01,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 08:40:01,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 08:40:01,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 08:40:01,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 08:40:01,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 08:40:01,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 08:40:01,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 08:40:01,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 08:40:01,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 08:40:01,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 08:40:01,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 08:40:01,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 08:40:01,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 08:40:01,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 08:40:01,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 08:40:01,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 08:40:01,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 08:40:01,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 08:40:01,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 08:40:01,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 08:40:01,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 08:40:01,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 08:40:01,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 08:40:01,402 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 08:40:01,431 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 08:40:01,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 08:40:01,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 08:40:01,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 08:40:01,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 08:40:01,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 08:40:01,433 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 08:40:01,433 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 08:40:01,433 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 08:40:01,434 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 08:40:01,434 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 08:40:01,434 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 08:40:01,434 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 08:40:01,435 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 08:40:01,435 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 08:40:01,435 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 08:40:01,435 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 08:40:01,435 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 08:40:01,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 08:40:01,436 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 08:40:01,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 08:40:01,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 08:40:01,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 08:40:01,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 08:40:01,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 08:40:01,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 08:40:01,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 08:40:01,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 08:40:01,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 08:40:01,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 08:40:01,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 08:40:01,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 08:40:01,666 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 08:40:01,667 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 08:40:01,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sanfoundry_43_ground.i [2023-04-01 08:40:02,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 08:40:02,892 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 08:40:02,892 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sanfoundry_43_ground.i [2023-04-01 08:40:02,896 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb78c8766/e8d8572269cf48be8b66e309fdf62136/FLAG0328eec73 [2023-04-01 08:40:02,906 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb78c8766/e8d8572269cf48be8b66e309fdf62136 [2023-04-01 08:40:02,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 08:40:02,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 08:40:02,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 08:40:02,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 08:40:02,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 08:40:02,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:40:02" (1/1) ... [2023-04-01 08:40:02,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18053d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:02, skipping insertion in model container [2023-04-01 08:40:02,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:40:02" (1/1) ... [2023-04-01 08:40:02,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 08:40:02,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 08:40:03,051 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/array-examples/sanfoundry_43_ground.i[813,826] [2023-04-01 08:40:03,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 08:40:03,077 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 08:40:03,086 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/array-examples/sanfoundry_43_ground.i[813,826] [2023-04-01 08:40:03,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 08:40:03,101 INFO L208 MainTranslator]: Completed translation [2023-04-01 08:40:03,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03 WrapperNode [2023-04-01 08:40:03,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 08:40:03,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 08:40:03,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 08:40:03,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 08:40:03,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 08:40:03,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 08:40:03,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 08:40:03,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 08:40:03,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (1/1) ... [2023-04-01 08:40:03,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 08:40:03,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 08:40:03,161 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 08:40:03,170 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 08:40:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 08:40:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 08:40:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 08:40:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 08:40:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure incrementArray [2023-04-01 08:40:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 08:40:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure incrementArray [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 08:40:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 08:40:03,273 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 08:40:03,275 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 08:40:03,445 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 08:40:03,472 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 08:40:03,472 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-04-01 08:40:03,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:40:03 BoogieIcfgContainer [2023-04-01 08:40:03,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 08:40:03,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 08:40:03,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 08:40:03,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 08:40:03,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 08:40:02" (1/3) ... [2023-04-01 08:40:03,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e43046d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:40:03, skipping insertion in model container [2023-04-01 08:40:03,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:40:03" (2/3) ... [2023-04-01 08:40:03,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e43046d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:40:03, skipping insertion in model container [2023-04-01 08:40:03,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:40:03" (3/3) ... [2023-04-01 08:40:03,480 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_43_ground.i [2023-04-01 08:40:03,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 08:40:03,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 08:40:03,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 08:40:03,546 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;@ce3a3d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 08:40:03,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 08:40:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 08:40:03,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 08:40:03,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 08:40:03,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 08:40:03,589 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 08:40:03,589 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 08:40:03,589 INFO L902 garLoopResultBuilder]: At program point L19-3(lines 19 21) the Hoare annotation is: true [2023-04-01 08:40:03,593 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 22) the Hoare annotation is: true [2023-04-01 08:40:03,593 INFO L899 garLoopResultBuilder]: For program point incrementArrayEXIT(lines 16 22) no Hoare annotation was computed. [2023-04-01 08:40:03,593 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 23 38) no Hoare annotation was computed. [2023-04-01 08:40:03,594 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 23 38) the Hoare annotation is: true [2023-04-01 08:40:03,594 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-04-01 08:40:03,594 INFO L902 garLoopResultBuilder]: At program point L34-3(lines 34 36) the Hoare annotation is: true [2023-04-01 08:40:03,594 INFO L902 garLoopResultBuilder]: At program point L28-3(lines 28 30) the Hoare annotation is: true [2023-04-01 08:40:03,594 INFO L902 garLoopResultBuilder]: At program point L28-4(lines 28 30) the Hoare annotation is: true [2023-04-01 08:40:03,594 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 08:40:03,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 08:40:03,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 08:40:03,595 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-01 08:40:03,595 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 08:40:03,595 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 08:40:03,595 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-04-01 08:40:03,595 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-04-01 08:40:03,595 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-04-01 08:40:03,595 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed. [2023-04-01 08:40:03,595 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 13) no Hoare annotation was computed. [2023-04-01 08:40:03,596 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-04-01 08:40:03,599 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-04-01 08:40:03,601 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 08:40:03,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 08:40:03 BoogieIcfgContainer [2023-04-01 08:40:03,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 08:40:03,607 INFO L158 Benchmark]: Toolchain (without parser) took 698.21ms. Allocated memory is still 351.3MB. Free memory was 302.6MB in the beginning and 268.0MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-04-01 08:40:03,607 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory is still 133.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 08:40:03,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.23ms. Allocated memory is still 351.3MB. Free memory was 302.1MB in the beginning and 292.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 08:40:03,608 INFO L158 Benchmark]: Boogie Preprocessor took 31.56ms. Allocated memory is still 351.3MB. Free memory was 292.1MB in the beginning and 290.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 08:40:03,608 INFO L158 Benchmark]: RCFGBuilder took 340.08ms. Allocated memory is still 351.3MB. Free memory was 290.5MB in the beginning and 276.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 08:40:03,609 INFO L158 Benchmark]: TraceAbstraction took 130.56ms. Allocated memory is still 351.3MB. Free memory was 276.4MB in the beginning and 268.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-04-01 08:40:03,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 187.7MB. Free memory is still 133.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.23ms. Allocated memory is still 351.3MB. Free memory was 302.1MB in the beginning and 292.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.56ms. Allocated memory is still 351.3MB. Free memory was 292.1MB in the beginning and 290.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 340.08ms. Allocated memory is still 351.3MB. Free memory was 290.5MB in the beginning and 276.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 130.56ms. Allocated memory is still 351.3MB. Free memory was 276.4MB in the beginning and 268.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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: 13]: 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 6 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 9 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-01 08:40:03,625 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...