/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/bubble_sort-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 02:45:15,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 02:45:15,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 02:45:15,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 02:45:15,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 02:45:15,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 02:45:15,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 02:45:15,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 02:45:15,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 02:45:15,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 02:45:15,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 02:45:15,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 02:45:15,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 02:45:15,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 02:45:15,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 02:45:15,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 02:45:15,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 02:45:15,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 02:45:15,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 02:45:15,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 02:45:15,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 02:45:15,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 02:45:15,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 02:45:15,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 02:45:15,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 02:45:15,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 02:45:15,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 02:45:15,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 02:45:15,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 02:45:15,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 02:45:15,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 02:45:15,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 02:45:15,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 02:45:15,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 02:45:15,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 02:45:15,211 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 02:45:15,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 02:45:15,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 02:45:15,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 02:45:15,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 02:45:15,394 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 02:45:15,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/bubble_sort-2.i [2022-02-24 02:45:15,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d61fdb57/3f6b5ab6132b4097af03af75d47303bf/FLAGcea9e0636 [2022-02-24 02:45:15,888 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 02:45:15,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i [2022-02-24 02:45:15,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d61fdb57/3f6b5ab6132b4097af03af75d47303bf/FLAGcea9e0636 [2022-02-24 02:45:15,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d61fdb57/3f6b5ab6132b4097af03af75d47303bf [2022-02-24 02:45:15,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 02:45:15,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 02:45:15,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 02:45:15,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 02:45:15,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 02:45:15,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 02:45:15" (1/1) ... [2022-02-24 02:45:15,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed5a1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:15, skipping insertion in model container [2022-02-24 02:45:15,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 02:45:15" (1/1) ... [2022-02-24 02:45:15,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 02:45:15,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 02:45:16,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i[1830,1843] [2022-02-24 02:45:16,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 02:45:16,155 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 02:45:16,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/bubble_sort-2.i[1830,1843] [2022-02-24 02:45:16,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 02:45:16,213 INFO L208 MainTranslator]: Completed translation [2022-02-24 02:45:16,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16 WrapperNode [2022-02-24 02:45:16,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 02:45:16,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 02:45:16,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 02:45:16,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 02:45:16,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 02:45:16,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 02:45:16,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 02:45:16,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 02:45:16,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (1/1) ... [2022-02-24 02:45:16,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 02:45:16,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 02:45:16,298 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) [2022-02-24 02:45:16,306 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 [2022-02-24 02:45:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 02:45:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 02:45:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 02:45:16,334 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2022-02-24 02:45:16,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 02:45:16,335 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 02:45:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 02:45:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-24 02:45:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-24 02:45:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 02:45:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 02:45:16,336 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure free [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2022-02-24 02:45:16,337 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-02-24 02:45:16,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 02:45:16,446 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 02:45:16,447 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 02:45:16,656 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2022-02-24 02:45:16,846 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 02:45:16,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 02:45:16,854 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2022-02-24 02:45:16,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 02:45:16 BoogieIcfgContainer [2022-02-24 02:45:16,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 02:45:16,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 02:45:16,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 02:45:16,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 02:45:16,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 02:45:15" (1/3) ... [2022-02-24 02:45:16,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1323d6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 02:45:16, skipping insertion in model container [2022-02-24 02:45:16,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 02:45:16" (2/3) ... [2022-02-24 02:45:16,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1323d6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 02:45:16, skipping insertion in model container [2022-02-24 02:45:16,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 02:45:16" (3/3) ... [2022-02-24 02:45:16,863 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2022-02-24 02:45:16,869 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 02:45:16,870 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 02:45:16,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 02:45:16,915 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=QVASR [2022-02-24 02:45:16,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 02:45:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 127 states have internal predecessors, (179), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-24 02:45:16,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-24 02:45:16,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 02:45:16,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 02:45:16,948 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 02:45:16,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 02:45:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1791385099, now seen corresponding path program 1 times [2022-02-24 02:45:16,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 02:45:16,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319387625] [2022-02-24 02:45:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 02:45:16,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 02:45:17,016 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 02:45:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 02:45:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-24 02:45:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 02:45:17,229 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 02:45:17,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319387625] [2022-02-24 02:45:17,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [319387625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 02:45:17,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 02:45:17,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 02:45:17,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436462340] [2022-02-24 02:45:17,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 02:45:17,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 02:45:17,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 02:45:17,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 02:45:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 02:45:17,263 INFO L87 Difference]: Start difference. First operand has 156 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 127 states have internal predecessors, (179), 33 states have call successors, (33), 14 states have call predecessors, (33), 13 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-02-24 02:45:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 02:45:17,709 INFO L93 Difference]: Finished difference Result 331 states and 501 transitions. [2022-02-24 02:45:17,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 02:45:17,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-02-24 02:45:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 02:45:17,728 INFO L225 Difference]: With dead ends: 331 [2022-02-24 02:45:17,728 INFO L226 Difference]: Without dead ends: 164 [2022-02-24 02:45:17,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-24 02:45:17,739 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 255 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 02:45:17,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 142 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 02:45:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-02-24 02:45:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2022-02-24 02:45:17,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 117 states have internal predecessors, (121), 32 states have call successors, (32), 13 states have call predecessors, (32), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 02:45:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 166 transitions. [2022-02-24 02:45:17,803 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 166 transitions. Word has length 18 [2022-02-24 02:45:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 02:45:17,804 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 166 transitions. [2022-02-24 02:45:17,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-02-24 02:45:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2022-02-24 02:45:17,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-02-24 02:45:17,805 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 02:45:17,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 02:45:17,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 02:45:17,806 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 02:45:17,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 02:45:17,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2112592059, now seen corresponding path program 1 times [2022-02-24 02:45:17,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 02:45:17,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709621356] [2022-02-24 02:45:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 02:45:17,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 02:45:17,812 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 02:45:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 02:45:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-24 02:45:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-24 02:45:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-24 02:45:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:18,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-02-24 02:45:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 02:45:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 02:45:18,090 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 02:45:18,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709621356] [2022-02-24 02:45:18,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [709621356] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 02:45:18,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 02:45:18,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-24 02:45:18,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968418858] [2022-02-24 02:45:18,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 02:45:18,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-24 02:45:18,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 02:45:18,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-24 02:45:18,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-02-24 02:45:18,098 INFO L87 Difference]: Start difference. First operand 143 states and 166 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-02-24 02:45:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 02:45:18,853 INFO L93 Difference]: Finished difference Result 241 states and 289 transitions. [2022-02-24 02:45:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-24 02:45:18,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2022-02-24 02:45:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 02:45:18,886 INFO L225 Difference]: With dead ends: 241 [2022-02-24 02:45:18,886 INFO L226 Difference]: Without dead ends: 236 [2022-02-24 02:45:18,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-02-24 02:45:18,891 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 843 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 02:45:18,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 134 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 02:45:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-02-24 02:45:18,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2022-02-24 02:45:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 155 states have (on average 1.2451612903225806) internal successors, (193), 172 states have internal predecessors, (193), 32 states have call successors, (32), 14 states have call predecessors, (32), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 02:45:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 238 transitions. [2022-02-24 02:45:18,909 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 238 transitions. Word has length 37 [2022-02-24 02:45:18,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 02:45:18,910 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 238 transitions. [2022-02-24 02:45:18,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-02-24 02:45:18,910 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2022-02-24 02:45:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-02-24 02:45:18,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 02:45:18,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 02:45:18,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 02:45:18,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 02:45:18,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 02:45:18,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1799360915, now seen corresponding path program 1 times [2022-02-24 02:45:18,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 02:45:18,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475931096] [2022-02-24 02:45:18,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 02:45:18,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 02:45:18,917 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 02:45:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-24 02:45:19,029 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-24 02:45:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-24 02:45:19,128 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-24 02:45:19,129 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-24 02:45:19,132 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-24 02:45:19,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 02:45:19,137 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-24 02:45:19,140 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-24 02:45:19,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 02:45:19 BoogieIcfgContainer [2022-02-24 02:45:19,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-24 02:45:19,169 INFO L158 Benchmark]: Toolchain (without parser) took 3250.07ms. Allocated memory was 205.5MB in the beginning and 252.7MB in the end (delta: 47.2MB). Free memory was 154.5MB in the beginning and 191.5MB in the end (delta: -37.0MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-02-24 02:45:19,169 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory was 171.9MB in the beginning and 171.8MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 02:45:19,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.76ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 174.6MB in the end (delta: -20.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-24 02:45:19,170 INFO L158 Benchmark]: Boogie Preprocessor took 49.29ms. Allocated memory is still 205.5MB. Free memory was 174.6MB in the beginning and 170.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-02-24 02:45:19,173 INFO L158 Benchmark]: RCFGBuilder took 592.04ms. Allocated memory is still 205.5MB. Free memory was 170.9MB in the beginning and 141.1MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-24 02:45:19,174 INFO L158 Benchmark]: TraceAbstraction took 2309.95ms. Allocated memory was 205.5MB in the beginning and 252.7MB in the end (delta: 47.2MB). Free memory was 140.5MB in the beginning and 191.5MB in the end (delta: -51.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 02:45:19,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory was 171.9MB in the beginning and 171.8MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 293.76ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 174.6MB in the end (delta: -20.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.29ms. Allocated memory is still 205.5MB. Free memory was 174.6MB in the beginning and 170.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 592.04ms. Allocated memory is still 205.5MB. Free memory was 170.9MB in the beginning and 141.1MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2309.95ms. Allocated memory was 205.5MB in the beginning and 252.7MB in the end (delta: 47.2MB). Free memory was 140.5MB in the beginning and 191.5MB in the end (delta: -51.0MB). 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 - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] struct list_head gl_list = {& gl_list, & gl_list}; [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; [L839] CALL gl_read() [L676] int tmp ; [L677] int tmp___0 ; [L680] COND TRUE 1 [L683] tmp = __VERIFIER_nondet_int() [L684] CALL gl_insert(tmp) [L622] struct node *node ; [L623] void *tmp ; [L624] unsigned int __cil_tmp4 ; [L625] unsigned int __cil_tmp5 ; [L626] unsigned int __cil_tmp6 ; [L627] struct list_head *__cil_tmp7 ; [L628] unsigned int __cil_tmp8 ; [L629] unsigned int __cil_tmp9 ; [L630] unsigned int __cil_tmp10 ; [L631] unsigned int __cil_tmp11 ; [L632] unsigned int __cil_tmp12 ; [L633] unsigned int __cil_tmp13 ; [L634] unsigned int __cil_tmp14 ; [L635] unsigned int __cil_tmp15 ; [L638] __cil_tmp4 = (unsigned int )20UL [L639] tmp = malloc(__cil_tmp4) [L640] node = (struct node *)tmp [L642] COND FALSE !(! node) [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 [L653] CALL list_add(__cil_tmp7, & gl_list) [L595] struct list_head *__cil_tmp3 ; [L598] EXPR \read(*head) [L598] __cil_tmp3 = *((struct list_head **)head) [L599] CALL __list_add(new, head, __cil_tmp3) [L567] unsigned int __cil_tmp4 ; [L568] unsigned int __cil_tmp5 ; [L569] unsigned int __cil_tmp6 ; [L570] unsigned int __cil_tmp7 ; [L572] __cil_tmp4 = (unsigned int )next [L573] __cil_tmp5 = __cil_tmp4 + 4 [L574] *((struct list_head **)__cil_tmp5) = new [L575] *((struct list_head **)new) = next [L576] __cil_tmp6 = (unsigned int )new [L577] __cil_tmp7 = __cil_tmp6 + 4 [L578] *((struct list_head **)__cil_tmp7) = prev [L579] *((struct list_head **)prev) = new [L599] RET __list_add(new, head, __cil_tmp3) [L653] RET list_add(__cil_tmp7, & gl_list) [L656] COND TRUE 1 [L658] __cil_tmp8 = (unsigned int )node [L659] __cil_tmp9 = __cil_tmp8 + 12 [L660] __cil_tmp10 = (unsigned int )node [L661] __cil_tmp11 = __cil_tmp10 + 12 [L662] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L663] __cil_tmp12 = (unsigned int )node [L664] __cil_tmp13 = __cil_tmp12 + 12 [L665] __cil_tmp14 = (unsigned int )node [L666] __cil_tmp15 = __cil_tmp14 + 12 [L667] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 [L684] RET gl_insert(tmp) [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) [L839] RET gl_read() [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) [L841] CALL inspect(__cil_tmp1) [L55] struct node const *node ; [L56] unsigned int __cil_tmp3 ; [L57] struct list_head *__cil_tmp4 ; [L58] unsigned int __cil_tmp5 ; [L59] int __cil_tmp6 ; [L60] unsigned int __cil_tmp7 ; [L61] unsigned int __cil_tmp8 ; [L62] unsigned int __cil_tmp9 ; [L63] struct list_head *__cil_tmp10 ; [L64] unsigned int __cil_tmp11 ; [L65] int __cil_tmp12 ; [L66] unsigned int __cil_tmp13 ; [L67] unsigned int __cil_tmp14 ; [L68] struct list_head *__cil_tmp15 ; [L69] unsigned int __cil_tmp16 ; [L70] struct list_head *__cil_tmp17 ; [L71] unsigned int __cil_tmp18 ; [L72] int __cil_tmp19 ; [L73] unsigned int __cil_tmp20 ; [L74] unsigned int __cil_tmp21 ; [L75] unsigned int __cil_tmp22 ; [L76] struct list_head *__cil_tmp23 ; [L77] unsigned int __cil_tmp24 ; [L78] int __cil_tmp25 ; [L79] struct node *__cil_tmp26 ; [L80] unsigned int __cil_tmp27 ; [L81] unsigned int __cil_tmp28 ; [L82] struct list_head *__cil_tmp29 ; [L83] unsigned long __cil_tmp30 ; [L84] char *__cil_tmp31 ; [L85] char *__cil_tmp32 ; [L86] struct node *__cil_tmp33 ; [L87] unsigned int __cil_tmp34 ; [L88] unsigned int __cil_tmp35 ; [L89] struct list_head const *__cil_tmp36 ; [L90] unsigned int __cil_tmp37 ; [L91] unsigned int __cil_tmp38 ; [L92] unsigned int __cil_tmp39 ; [L93] struct list_head *__cil_tmp40 ; [L94] unsigned int __cil_tmp41 ; [L95] int __cil_tmp42 ; [L96] unsigned int __cil_tmp43 ; [L97] unsigned int __cil_tmp44 ; [L98] struct list_head const *__cil_tmp45 ; [L99] unsigned int __cil_tmp46 ; [L100] unsigned int __cil_tmp47 ; [L101] unsigned int __cil_tmp48 ; [L102] unsigned int __cil_tmp49 ; [L103] struct list_head *__cil_tmp50 ; [L104] unsigned int __cil_tmp51 ; [L105] int __cil_tmp52 ; [L106] unsigned int __cil_tmp53 ; [L107] unsigned int __cil_tmp54 ; [L108] struct list_head const *__cil_tmp55 ; [L109] unsigned int __cil_tmp56 ; [L110] unsigned int __cil_tmp57 ; [L111] unsigned int __cil_tmp58 ; [L112] struct list_head *__cil_tmp59 ; [L113] unsigned int __cil_tmp60 ; [L114] int __cil_tmp61 ; [L115] unsigned int __cil_tmp62 ; [L116] unsigned int __cil_tmp63 ; [L117] struct list_head const *__cil_tmp64 ; [L118] unsigned int __cil_tmp65 ; [L119] unsigned int __cil_tmp66 ; [L120] unsigned int __cil_tmp67 ; [L121] unsigned int __cil_tmp68 ; [L122] struct list_head *__cil_tmp69 ; [L123] unsigned int __cil_tmp70 ; [L124] int __cil_tmp71 ; [L125] struct node const *__cil_tmp72 ; [L126] unsigned int __cil_tmp73 ; [L127] unsigned int __cil_tmp74 ; [L128] int __cil_tmp75 ; [L129] unsigned int __cil_tmp76 ; [L130] unsigned int __cil_tmp77 ; [L131] struct list_head const *__cil_tmp78 ; [L132] struct node const *__cil_tmp79 ; [L133] unsigned int __cil_tmp80 ; [L134] unsigned int __cil_tmp81 ; [L135] int __cil_tmp82 ; [L136] int const *__cil_tmp83 ; [L137] struct node const *__cil_tmp84 ; [L138] unsigned int __cil_tmp85 ; [L139] unsigned int __cil_tmp86 ; [L140] int __cil_tmp87 ; [L141] unsigned int __cil_tmp88 ; [L142] unsigned int __cil_tmp89 ; [L143] struct list_head *__cil_tmp90 ; [L144] unsigned int __cil_tmp91 ; [L145] unsigned int __cil_tmp92 ; [L146] struct list_head *__cil_tmp93 ; [L147] unsigned int __cil_tmp94 ; [L148] unsigned int __cil_tmp95 ; [L149] int __cil_tmp96 ; [L150] unsigned int __cil_tmp97 ; [L151] unsigned int __cil_tmp98 ; [L152] unsigned int __cil_tmp99 ; [L153] struct list_head *__cil_tmp100 ; [L154] struct list_head *__cil_tmp101 ; [L155] unsigned int __cil_tmp102 ; [L156] unsigned int __cil_tmp103 ; [L157] int __cil_tmp104 ; [L158] struct list_head *__cil_tmp105 ; [L159] unsigned int __cil_tmp106 ; [L160] unsigned int __cil_tmp107 ; [L161] unsigned int __cil_tmp108 ; [L162] struct list_head const *__cil_tmp109 ; [L163] unsigned int __cil_tmp110 ; [L164] struct list_head *__cil_tmp111 ; [L165] unsigned int __cil_tmp112 ; [L166] struct node *__cil_tmp113 ; [L167] unsigned int __cil_tmp114 ; [L168] unsigned int __cil_tmp115 ; [L169] struct list_head *__cil_tmp116 ; [L170] unsigned long __cil_tmp117 ; [L171] char *__cil_tmp118 ; [L172] char *__cil_tmp119 ; [L173] struct node *__cil_tmp120 ; [L174] unsigned int __cil_tmp121 ; [L175] int __cil_tmp122 ; [L179] COND TRUE 1 [L181] COND FALSE !(! head) [L192] COND TRUE 1 [L195] __cil_tmp3 = (unsigned int )head [L196] EXPR \read(*head) [L196] __cil_tmp4 = *((struct list_head * const *)head) [L197] __cil_tmp5 = (unsigned int )__cil_tmp4 [L198] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 [L199] COND TRUE ! __cil_tmp6 [L201] CALL fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1112 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1098 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 359 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 711 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 359 mSolverCounterUnsat, 267 mSDtfsCounter, 711 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-24 02:45:19,191 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...