./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:33:28,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:33:28,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:33:28,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:33:28,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:33:28,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:33:28,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:33:28,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:33:28,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:33:28,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:33:28,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:33:28,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:33:28,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:33:28,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:33:28,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:33:28,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:33:28,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:33:28,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:33:28,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:33:28,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:33:28,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:33:28,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:33:28,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:33:28,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:33:28,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:33:28,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:33:28,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:33:28,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:33:28,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:33:28,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:33:28,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:33:28,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:33:28,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:33:28,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:33:28,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:33:28,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:33:28,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:33:28,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:33:28,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:33:28,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:33:28,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:33:28,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-15 13:33:28,447 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:33:28,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:33:28,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:33:28,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:33:28,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:33:28,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:33:28,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:33:28,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:33:28,450 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:33:28,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:33:28,451 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:33:28,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:33:28,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:33:28,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:33:28,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:33:28,452 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 13:33:28,453 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 13:33:28,453 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 13:33:28,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:33:28,453 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 13:33:28,453 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:33:28,454 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:33:28,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:33:28,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:33:28,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:33:28,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:33:28,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:33:28,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:33:28,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:33:28,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:33:28,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:33:28,456 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:33:28,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:33:28,456 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:33:28,456 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2023-02-15 13:33:28,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:33:28,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:33:28,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:33:28,749 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:33:28,749 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:33:28,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2023-02-15 13:33:29,831 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:33:30,008 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:33:30,009 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2023-02-15 13:33:30,015 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d133f68/25c69c32f7ae4e71b23682c423578235/FLAG9983223b2 [2023-02-15 13:33:30,029 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d133f68/25c69c32f7ae4e71b23682c423578235 [2023-02-15 13:33:30,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:33:30,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:33:30,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:33:30,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:33:30,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:33:30,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d674414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30, skipping insertion in model container [2023-02-15 13:33:30,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:33:30,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:33:30,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2023-02-15 13:33:30,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:33:30,207 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:33:30,229 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2023-02-15 13:33:30,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:33:30,251 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:33:30,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30 WrapperNode [2023-02-15 13:33:30,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:33:30,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:33:30,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:33:30,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:33:30,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,287 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 184 [2023-02-15 13:33:30,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:33:30,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:33:30,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:33:30,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:33:30,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:33:30,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:33:30,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:33:30,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:33:30,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (1/1) ... [2023-02-15 13:33:30,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:33:30,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:33:30,350 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) [2023-02-15 13:33:30,365 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 [2023-02-15 13:33:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:33:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:33:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:33:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 13:33:30,493 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:33:30,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:33:30,810 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:33:30,816 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:33:30,817 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:33:30,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:33:30 BoogieIcfgContainer [2023-02-15 13:33:30,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:33:30,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:33:30,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:33:30,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:33:30,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:33:30" (1/3) ... [2023-02-15 13:33:30,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca498d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:33:30, skipping insertion in model container [2023-02-15 13:33:30,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:30" (2/3) ... [2023-02-15 13:33:30,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca498d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:33:30, skipping insertion in model container [2023-02-15 13:33:30,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:33:30" (3/3) ... [2023-02-15 13:33:30,835 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2023-02-15 13:33:30,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:33:30,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-15 13:33:30,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:33:30,903 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=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22a51f85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:33:30,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-15 13:33:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 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) [2023-02-15 13:33:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:33:30,912 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:30,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:33:30,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:30,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2023-02-15 13:33:30,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:30,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044083008] [2023-02-15 13:33:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:30,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:31,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:33:31,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044083008] [2023-02-15 13:33:31,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044083008] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:31,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:31,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:33:31,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377625225] [2023-02-15 13:33:31,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:31,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 13:33:31,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:33:31,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 13:33:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 13:33:31,093 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-02-15 13:33:31,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:31,107 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2023-02-15 13:33:31,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 13:33:31,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-02-15 13:33:31,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:31,115 INFO L225 Difference]: With dead ends: 53 [2023-02-15 13:33:31,116 INFO L226 Difference]: Without dead ends: 51 [2023-02-15 13:33:31,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 13:33:31,120 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:31,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-15 13:33:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-02-15 13:33:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 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) [2023-02-15 13:33:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2023-02-15 13:33:31,150 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2023-02-15 13:33:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:31,151 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2023-02-15 13:33:31,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-02-15 13:33:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2023-02-15 13:33:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 13:33:31,151 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:31,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:33:31,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:31,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:31,153 INFO L85 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2023-02-15 13:33:31,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:31,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852533161] [2023-02-15 13:33:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:31,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:31,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:33:31,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852533161] [2023-02-15 13:33:31,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852533161] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:31,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:31,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:33:31,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517776858] [2023-02-15 13:33:31,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:31,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:31,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:33:31,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:31,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,217 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-15 13:33:31,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:31,228 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2023-02-15 13:33:31,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2023-02-15 13:33:31,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:31,230 INFO L225 Difference]: With dead ends: 50 [2023-02-15 13:33:31,230 INFO L226 Difference]: Without dead ends: 48 [2023-02-15 13:33:31,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,231 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:31,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:31,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-15 13:33:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-02-15 13:33:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 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) [2023-02-15 13:33:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2023-02-15 13:33:31,238 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2023-02-15 13:33:31,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:31,239 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2023-02-15 13:33:31,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-15 13:33:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2023-02-15 13:33:31,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:31,240 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:31,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:33:31,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2023-02-15 13:33:31,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:31,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717410029] [2023-02-15 13:33:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:31,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:33:31,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717410029] [2023-02-15 13:33:31,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717410029] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:31,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:31,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:31,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775060169] [2023-02-15 13:33:31,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:31,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:31,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:33:31,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:31,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,329 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:31,351 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2023-02-15 13:33:31,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:31,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:31,354 INFO L225 Difference]: With dead ends: 93 [2023-02-15 13:33:31,354 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 13:33:31,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,355 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:31,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 13:33:31,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2023-02-15 13:33:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2023-02-15 13:33:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2023-02-15 13:33:31,365 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2023-02-15 13:33:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:31,366 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2023-02-15 13:33:31,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2023-02-15 13:33:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:31,367 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:31,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:33:31,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:31,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:31,368 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2023-02-15 13:33:31,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:31,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771734109] [2023-02-15 13:33:31,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:31,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:31,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:33:31,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771734109] [2023-02-15 13:33:31,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771734109] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:31,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:31,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:31,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265497096] [2023-02-15 13:33:31,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:31,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:31,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:33:31,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:31,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,424 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:31,442 INFO L93 Difference]: Finished difference Result 94 states and 173 transitions. [2023-02-15 13:33:31,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:31,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:31,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:31,443 INFO L225 Difference]: With dead ends: 94 [2023-02-15 13:33:31,444 INFO L226 Difference]: Without dead ends: 94 [2023-02-15 13:33:31,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,445 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:31,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-15 13:33:31,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-02-15 13:33:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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) [2023-02-15 13:33:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2023-02-15 13:33:31,453 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2023-02-15 13:33:31,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:31,454 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2023-02-15 13:33:31,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2023-02-15 13:33:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:31,455 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:31,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:33:31,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2023-02-15 13:33:31,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:31,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757851450] [2023-02-15 13:33:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:31,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:31,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:33:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757851450] [2023-02-15 13:33:31,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757851450] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:31,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:31,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:31,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022020194] [2023-02-15 13:33:31,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:31,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:33:31,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:31,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,518 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:31,532 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2023-02-15 13:33:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:31,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:31,533 INFO L225 Difference]: With dead ends: 96 [2023-02-15 13:33:31,533 INFO L226 Difference]: Without dead ends: 96 [2023-02-15 13:33:31,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,535 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:31,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-02-15 13:33:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2023-02-15 13:33:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 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) [2023-02-15 13:33:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2023-02-15 13:33:31,542 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2023-02-15 13:33:31,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:31,543 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2023-02-15 13:33:31,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2023-02-15 13:33:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:31,544 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:31,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 13:33:31,545 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:31,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2023-02-15 13:33:31,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:31,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88119728] [2023-02-15 13:33:31,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:31,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:33:31,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88119728] [2023-02-15 13:33:31,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88119728] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:31,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:31,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933929713] [2023-02-15 13:33:31,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:31,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:31,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:33:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,593 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:31,608 INFO L93 Difference]: Finished difference Result 127 states and 228 transitions. [2023-02-15 13:33:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:31,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:31,610 INFO L225 Difference]: With dead ends: 127 [2023-02-15 13:33:31,610 INFO L226 Difference]: Without dead ends: 127 [2023-02-15 13:33:31,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:31,612 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:31,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:31,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-02-15 13:33:31,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2023-02-15 13:33:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2023-02-15 13:33:31,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2023-02-15 13:33:31,621 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2023-02-15 13:33:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:31,622 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2023-02-15 13:33:31,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2023-02-15 13:33:31,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:31,623 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:31,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 13:33:31,623 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:31,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:31,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2023-02-15 13:33:31,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:33:31,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368999792] [2023-02-15 13:33:31,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:31,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:33:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:33:31,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 13:33:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:33:31,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 13:33:31,691 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 13:33:31,692 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-02-15 13:33:31,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-02-15 13:33:31,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 13:33:31,696 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:31,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:33:31,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:33:31 BoogieIcfgContainer [2023-02-15 13:33:31,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:33:31,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:33:31,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:33:31,753 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:33:31,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:33:30" (3/4) ... [2023-02-15 13:33:31,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 13:33:31,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:33:31,757 INFO L158 Benchmark]: Toolchain (without parser) took 1723.62ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 78.7MB in the beginning and 105.6MB in the end (delta: -26.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-02-15 13:33:31,757 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:33:31,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.80ms. Allocated memory is still 121.6MB. Free memory was 78.4MB in the beginning and 67.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 13:33:31,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.52ms. Allocated memory is still 121.6MB. Free memory was 67.1MB in the beginning and 65.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:33:31,758 INFO L158 Benchmark]: Boogie Preprocessor took 29.88ms. Allocated memory is still 121.6MB. Free memory was 65.1MB in the beginning and 63.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:33:31,759 INFO L158 Benchmark]: RCFGBuilder took 499.93ms. Allocated memory is still 121.6MB. Free memory was 63.7MB in the beginning and 92.3MB in the end (delta: -28.6MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-02-15 13:33:31,759 INFO L158 Benchmark]: TraceAbstraction took 931.67ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 91.6MB in the beginning and 105.6MB in the end (delta: -14.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-02-15 13:33:31,759 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 148.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:33:31,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.80ms. Allocated memory is still 121.6MB. Free memory was 78.4MB in the beginning and 67.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.52ms. Allocated memory is still 121.6MB. Free memory was 67.1MB in the beginning and 65.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.88ms. Allocated memory is still 121.6MB. Free memory was 65.1MB in the beginning and 63.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 499.93ms. Allocated memory is still 121.6MB. Free memory was 63.7MB in the beginning and 92.3MB in the end (delta: -28.6MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 931.67ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 91.6MB in the beginning and 105.6MB in the end (delta: -14.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 148.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L96] COND FALSE !(p3 != 0) VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=-1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L128] COND FALSE !(p11 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L219] reach_error() VAL [cond=-1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 624 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-15 13:33:31,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:33:33,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:33:33,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:33:33,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:33:33,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:33:33,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:33:33,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:33:33,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:33:33,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:33:33,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:33:33,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:33:33,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:33:33,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:33:33,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:33:33,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:33:33,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:33:33,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:33:33,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:33:33,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:33:34,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:33:34,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:33:34,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:33:34,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:33:34,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:33:34,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:33:34,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:33:34,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:33:34,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:33:34,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:33:34,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:33:34,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:33:34,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:33:34,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:33:34,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:33:34,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:33:34,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:33:34,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:33:34,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:33:34,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:33:34,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:33:34,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:33:34,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-15 13:33:34,060 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:33:34,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:33:34,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:33:34,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:33:34,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:33:34,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:33:34,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:33:34,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:33:34,063 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:33:34,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:33:34,065 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:33:34,065 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:33:34,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:33:34,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:33:34,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:33:34,066 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 13:33:34,066 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 13:33:34,066 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 13:33:34,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:33:34,067 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 13:33:34,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 13:33:34,067 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 13:33:34,067 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:33:34,067 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:33:34,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:33:34,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:33:34,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:33:34,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:33:34,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:33:34,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:33:34,069 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 13:33:34,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 13:33:34,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:33:34,070 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:33:34,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:33:34,070 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 13:33:34,071 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:33:34,071 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2023-02-15 13:33:34,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:33:34,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:33:34,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:33:34,433 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:33:34,433 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:33:34,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2023-02-15 13:33:35,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:33:35,928 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:33:35,928 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2023-02-15 13:33:35,940 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e834c5b/942ea434ce7e434fa8db427197f8d2a7/FLAGed0344b8e [2023-02-15 13:33:35,959 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e834c5b/942ea434ce7e434fa8db427197f8d2a7 [2023-02-15 13:33:35,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:33:35,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:33:35,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:33:35,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:33:35,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:33:35,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:33:35" (1/1) ... [2023-02-15 13:33:35,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f149e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:35, skipping insertion in model container [2023-02-15 13:33:35,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:33:35" (1/1) ... [2023-02-15 13:33:35,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:33:36,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:33:36,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2023-02-15 13:33:36,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:33:36,171 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:33:36,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c[5305,5318] [2023-02-15 13:33:36,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:33:36,206 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:33:36,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36 WrapperNode [2023-02-15 13:33:36,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:33:36,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:33:36,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:33:36,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:33:36,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,258 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 169 [2023-02-15 13:33:36,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:33:36,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:33:36,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:33:36,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:33:36,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:33:36,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:33:36,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:33:36,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:33:36,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (1/1) ... [2023-02-15 13:33:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:33:36,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:33:36,358 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) [2023-02-15 13:33:36,386 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 [2023-02-15 13:33:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:33:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:33:36,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:33:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-15 13:33:36,490 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:33:36,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:33:36,762 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:33:36,768 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:33:36,768 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:33:36,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:33:36 BoogieIcfgContainer [2023-02-15 13:33:36,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:33:36,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:33:36,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:33:36,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:33:36,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:33:35" (1/3) ... [2023-02-15 13:33:36,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aad042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:33:36, skipping insertion in model container [2023-02-15 13:33:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:33:36" (2/3) ... [2023-02-15 13:33:36,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aad042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:33:36, skipping insertion in model container [2023-02-15 13:33:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:33:36" (3/3) ... [2023-02-15 13:33:36,782 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2023-02-15 13:33:36,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:33:36,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-15 13:33:36,834 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:33:36,840 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=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e815cd8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:33:36,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-15 13:33:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 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) [2023-02-15 13:33:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:33:36,849 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:36,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:33:36,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:36,855 INFO L85 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2023-02-15 13:33:36,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:36,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459117848] [2023-02-15 13:33:36,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:36,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:36,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:36,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-15 13:33:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:36,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 13:33:36,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:33:36,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:36,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:33:36,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:33:36,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459117848] [2023-02-15 13:33:36,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459117848] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:36,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:36,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:33:36,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631752483] [2023-02-15 13:33:36,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:36,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 13:33:36,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:33:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 13:33:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 13:33:37,002 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-02-15 13:33:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:37,017 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2023-02-15 13:33:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 13:33:37,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-02-15 13:33:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:37,026 INFO L225 Difference]: With dead ends: 53 [2023-02-15 13:33:37,031 INFO L226 Difference]: Without dead ends: 51 [2023-02-15 13:33:37,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 13:33:37,036 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:37,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:37,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-02-15 13:33:37,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-02-15 13:33:37,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 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) [2023-02-15 13:33:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2023-02-15 13:33:37,070 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2023-02-15 13:33:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:37,070 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2023-02-15 13:33:37,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-02-15 13:33:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2023-02-15 13:33:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 13:33:37,071 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:37,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 13:33:37,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-02-15 13:33:37,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:37,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:37,274 INFO L85 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2023-02-15 13:33:37,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:37,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308567761] [2023-02-15 13:33:37,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:37,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:37,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:37,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:37,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-15 13:33:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:37,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 13:33:37,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:33:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:37,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:33:37,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:33:37,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308567761] [2023-02-15 13:33:37,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308567761] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:37,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:37,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:33:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619009165] [2023-02-15 13:33:37,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:37,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:33:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:37,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:37,343 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-15 13:33:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:37,364 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2023-02-15 13:33:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:37,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2023-02-15 13:33:37,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:37,366 INFO L225 Difference]: With dead ends: 50 [2023-02-15 13:33:37,366 INFO L226 Difference]: Without dead ends: 48 [2023-02-15 13:33:37,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:37,367 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:37,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:37,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-15 13:33:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-02-15 13:33:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 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) [2023-02-15 13:33:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2023-02-15 13:33:37,373 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2023-02-15 13:33:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:37,374 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2023-02-15 13:33:37,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-15 13:33:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2023-02-15 13:33:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:37,375 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:37,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:37,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-15 13:33:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:37,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:37,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2023-02-15 13:33:37,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:37,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890562755] [2023-02-15 13:33:37,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:37,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:37,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:37,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:37,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-15 13:33:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:37,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 13:33:37,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:33:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:37,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:33:37,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:33:37,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890562755] [2023-02-15 13:33:37,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890562755] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:37,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:37,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:37,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995562423] [2023-02-15 13:33:37,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:37,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:37,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:33:37,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:37,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:37,723 INFO L87 Difference]: Start difference. First operand 48 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:37,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:37,745 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2023-02-15 13:33:37,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:37,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:37,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:37,747 INFO L225 Difference]: With dead ends: 93 [2023-02-15 13:33:37,747 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 13:33:37,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:37,748 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:37,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 13:33:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2023-02-15 13:33:37,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2023-02-15 13:33:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2023-02-15 13:33:37,758 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2023-02-15 13:33:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:37,758 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2023-02-15 13:33:37,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2023-02-15 13:33:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:37,759 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:37,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:37,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-15 13:33:37,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:37,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:37,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2023-02-15 13:33:37,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:37,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58447169] [2023-02-15 13:33:37,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:37,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:37,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:37,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:37,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-15 13:33:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:38,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 13:33:38,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:33:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:38,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:33:38,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:33:38,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58447169] [2023-02-15 13:33:38,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58447169] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:38,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:38,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:38,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090438449] [2023-02-15 13:33:38,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:38,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:33:38,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:38,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:38,131 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:38,159 INFO L93 Difference]: Finished difference Result 94 states and 173 transitions. [2023-02-15 13:33:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:38,161 INFO L225 Difference]: With dead ends: 94 [2023-02-15 13:33:38,162 INFO L226 Difference]: Without dead ends: 94 [2023-02-15 13:33:38,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:38,163 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:38,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:38,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-15 13:33:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-02-15 13:33:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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) [2023-02-15 13:33:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2023-02-15 13:33:38,177 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2023-02-15 13:33:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:38,177 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2023-02-15 13:33:38,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2023-02-15 13:33:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:38,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:38,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:38,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-15 13:33:38,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:38,389 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2023-02-15 13:33:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:38,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143020782] [2023-02-15 13:33:38,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:38,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:38,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:38,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:38,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-15 13:33:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:38,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 13:33:38,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:33:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:38,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:33:38,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:33:38,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143020782] [2023-02-15 13:33:38,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143020782] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:38,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:38,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:38,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286771787] [2023-02-15 13:33:38,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:38,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:38,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:33:38,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:38,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:38,465 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:38,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:38,479 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2023-02-15 13:33:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:38,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:38,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:38,480 INFO L225 Difference]: With dead ends: 96 [2023-02-15 13:33:38,480 INFO L226 Difference]: Without dead ends: 96 [2023-02-15 13:33:38,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:38,481 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:38,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:38,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-02-15 13:33:38,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2023-02-15 13:33:38,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 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) [2023-02-15 13:33:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2023-02-15 13:33:38,489 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2023-02-15 13:33:38,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:38,489 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2023-02-15 13:33:38,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2023-02-15 13:33:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:38,490 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:38,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:38,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-02-15 13:33:38,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:38,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:38,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2023-02-15 13:33:38,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:38,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658553958] [2023-02-15 13:33:38,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:38,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:38,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:38,701 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:38,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-15 13:33:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:33:38,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 13:33:38,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:33:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:33:38,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:33:38,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:33:38,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658553958] [2023-02-15 13:33:38,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658553958] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:33:38,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:33:38,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:33:38,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946027761] [2023-02-15 13:33:38,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:33:38,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:33:38,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:33:38,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:33:38,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:38,770 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:33:38,783 INFO L93 Difference]: Finished difference Result 127 states and 228 transitions. [2023-02-15 13:33:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:33:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2023-02-15 13:33:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:33:38,785 INFO L225 Difference]: With dead ends: 127 [2023-02-15 13:33:38,785 INFO L226 Difference]: Without dead ends: 127 [2023-02-15 13:33:38,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:33:38,787 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:33:38,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:33:38,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-02-15 13:33:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2023-02-15 13:33:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2023-02-15 13:33:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2023-02-15 13:33:38,798 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2023-02-15 13:33:38,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:33:38,798 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2023-02-15 13:33:38,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-02-15 13:33:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2023-02-15 13:33:38,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:33:38,799 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:33:38,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:38,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-15 13:33:39,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:39,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-15 13:33:39,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:33:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2023-02-15 13:33:39,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:33:39,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521278716] [2023-02-15 13:33:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:33:39,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:39,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:33:39,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 13:33:39,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-15 13:33:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:33:39,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 13:33:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 13:33:39,097 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-15 13:33:39,098 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 13:33:39,099 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-02-15 13:33:39,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-02-15 13:33:39,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-15 13:33:39,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 13:33:39,316 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:33:39,319 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:33:39,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:33:39 BoogieIcfgContainer [2023-02-15 13:33:39,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:33:39,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:33:39,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:33:39,359 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:33:39,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:33:36" (3/4) ... [2023-02-15 13:33:39,361 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 13:33:39,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:33:39,365 INFO L158 Benchmark]: Toolchain (without parser) took 3401.94ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 58.3MB in the beginning and 69.1MB in the end (delta: -10.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-02-15 13:33:39,365 INFO L158 Benchmark]: CDTParser took 1.43ms. Allocated memory is still 60.8MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:33:39,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.82ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 46.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 13:33:39,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.55ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 44.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:33:39,366 INFO L158 Benchmark]: Boogie Preprocessor took 60.25ms. Allocated memory is still 79.7MB. Free memory was 44.3MB in the beginning and 42.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:33:39,367 INFO L158 Benchmark]: RCFGBuilder took 448.85ms. Allocated memory is still 79.7MB. Free memory was 42.7MB in the beginning and 45.3MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-15 13:33:39,367 INFO L158 Benchmark]: TraceAbstraction took 2586.17ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 44.6MB in the beginning and 69.1MB in the end (delta: -24.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-02-15 13:33:39,367 INFO L158 Benchmark]: Witness Printer took 3.27ms. Allocated memory is still 96.5MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:33:39,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43ms. Allocated memory is still 60.8MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.82ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 46.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.55ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 44.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.25ms. Allocated memory is still 79.7MB. Free memory was 44.3MB in the beginning and 42.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.85ms. Allocated memory is still 79.7MB. Free memory was 42.7MB in the beginning and 45.3MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2586.17ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 44.6MB in the beginning and 69.1MB in the end (delta: -24.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 3.27ms. Allocated memory is still 96.5MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 219]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 219. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L88] COND FALSE !(p1 != 0) VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L92] COND FALSE !(p2 != 0) VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L96] COND FALSE !(p3 != 0) VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=-2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L128] COND FALSE !(p11 != 0) VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L146] COND FALSE !(p1 != 0) VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L151] COND FALSE !(p2 != 0) VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L219] reach_error() VAL [cond=-2147483648, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=2, p11=0, p12=2, p13=2, p14=2, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 282 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 624 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-15 13:33:39,389 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample