./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i -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 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:13:33,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:13:33,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:13:33,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:13:33,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:13:33,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:13:33,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:13:33,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:13:33,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:13:33,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:13:33,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:13:33,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:13:33,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:13:33,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:13:33,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:13:33,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:13:33,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:13:33,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:13:33,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:13:33,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:13:33,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:13:33,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:13:33,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:13:33,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:13:33,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:13:33,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:13:33,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:13:33,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:13:33,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:13:33,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:13:33,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:13:33,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:13:33,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:13:33,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:13:33,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:13:33,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:13:33,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:13:33,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:13:33,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:13:33,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:13:33,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:13:33,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:13:33,631 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:13:33,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:13:33,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:13:33,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:13:33,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:13:33,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:13:33,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:13:33,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:13:33,634 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:13:33,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:13:33,634 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:13:33,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:13:33,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:13:33,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:13:33,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:13:33,635 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:13:33,635 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:13:33,635 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:13:33,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:13:33,636 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:13:33,636 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:13:33,636 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:13:33,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:13:33,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:13:33,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:13:33,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:13:33,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:13:33,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:13:33,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:13:33,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:13:33,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:13:33,638 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:13:33,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:13:33,639 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:13:33,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:13:33,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:13:33,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:13:33,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:13:33,989 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:13:33,990 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:13:33,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-29 21:13:35,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:13:35,344 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:13:35,349 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2023-08-29 21:13:35,369 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e8d27a6/b2c6b4064a0e43fbba65304cf4901b76/FLAG91146b314 [2023-08-29 21:13:35,383 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e8d27a6/b2c6b4064a0e43fbba65304cf4901b76 [2023-08-29 21:13:35,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:13:35,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:13:35,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:13:35,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:13:35,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:13:35,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b936a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35, skipping insertion in model container [2023-08-29 21:13:35,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:13:35,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:13:35,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:13:35,766 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:13:35,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:13:35,888 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:13:35,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35 WrapperNode [2023-08-29 21:13:35,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:13:35,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:13:35,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:13:35,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:13:35,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,946 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-08-29 21:13:35,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:13:35,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:13:35,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:13:35,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:13:35,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:35,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:13:35,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:13:35,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:13:35,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:13:35,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (1/1) ... [2023-08-29 21:13:36,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:13:36,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:13:36,026 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) [2023-08-29 21:13:36,061 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 [2023-08-29 21:13:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:13:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:13:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:13:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:13:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:13:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:13:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:13:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:13:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:13:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:13:36,081 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:13:36,247 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:13:36,248 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:13:36,435 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:13:36,440 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:13:36,444 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:13:36,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:13:36 BoogieIcfgContainer [2023-08-29 21:13:36,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:13:36,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:13:36,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:13:36,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:13:36,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:13:35" (1/3) ... [2023-08-29 21:13:36,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491b0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:13:36, skipping insertion in model container [2023-08-29 21:13:36,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:13:35" (2/3) ... [2023-08-29 21:13:36,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491b0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:13:36, skipping insertion in model container [2023-08-29 21:13:36,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:13:36" (3/3) ... [2023-08-29 21:13:36,458 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2023-08-29 21:13:36,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:13:36,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-29 21:13:36,475 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:13:36,539 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 21:13:36,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 60 transitions, 125 flow [2023-08-29 21:13:36,629 INFO L130 PetriNetUnfolder]: 3/59 cut-off events. [2023-08-29 21:13:36,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:13:36,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 3/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-08-29 21:13:36,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 60 transitions, 125 flow [2023-08-29 21:13:36,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 55 transitions, 113 flow [2023-08-29 21:13:36,642 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:13:36,660 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions, 113 flow [2023-08-29 21:13:36,664 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 55 transitions, 113 flow [2023-08-29 21:13:36,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 113 flow [2023-08-29 21:13:36,690 INFO L130 PetriNetUnfolder]: 3/55 cut-off events. [2023-08-29 21:13:36,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:13:36,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 55 events. 3/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-29 21:13:36,692 INFO L119 LiptonReduction]: Number of co-enabled transitions 378 [2023-08-29 21:13:38,581 INFO L134 LiptonReduction]: Checked pairs total: 735 [2023-08-29 21:13:38,581 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-29 21:13:38,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:13:38,598 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;@7025d73b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:13:38,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-29 21:13:38,600 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:13:38,600 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:13:38,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:13:38,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:13:38,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2023-08-29 21:13:38,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:13:38,605 INFO L85 PathProgramCache]: Analyzing trace with hash 226, now seen corresponding path program 1 times [2023-08-29 21:13:38,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:13:38,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084997036] [2023-08-29 21:13:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:13:38,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:13:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:13:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:13:38,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:13:38,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084997036] [2023-08-29 21:13:38,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084997036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:13:38,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:13:38,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:13:38,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616544116] [2023-08-29 21:13:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:13:38,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:13:38,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:13:38,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:13:38,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:13:38,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 114 [2023-08-29 21:13:38,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-08-29 21:13:38,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:13:38,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 114 [2023-08-29 21:13:38,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:13:38,782 INFO L130 PetriNetUnfolder]: 21/47 cut-off events. [2023-08-29 21:13:38,782 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:13:38,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 47 events. 21/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 16 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 90. Up to 48 conditions per place. [2023-08-29 21:13:38,784 INFO L137 encePairwiseOnDemand]: 112/114 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-29 21:13:38,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 11 transitions, 47 flow [2023-08-29 21:13:38,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:13:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:13:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 131 transitions. [2023-08-29 21:13:38,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5745614035087719 [2023-08-29 21:13:38,798 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 131 transitions. [2023-08-29 21:13:38,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 131 transitions. [2023-08-29 21:13:38,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:13:38,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 131 transitions. [2023-08-29 21:13:38,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 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) [2023-08-29 21:13:38,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-08-29 21:13:38,812 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-08-29 21:13:38,813 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 2 states and 131 transitions. [2023-08-29 21:13:38,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 11 transitions, 47 flow [2023-08-29 21:13:38,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:13:38,817 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-29 21:13:38,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-29 21:13:38,822 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -2 predicate places. [2023-08-29 21:13:38,823 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-29 21:13:38,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-08-29 21:13:38,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:13:38,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:13:38,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:13:38,824 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2023-08-29 21:13:38,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:13:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 6845550, now seen corresponding path program 1 times [2023-08-29 21:13:38,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:13:38,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009239177] [2023-08-29 21:13:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:13:38,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:13:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:13:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:13:39,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:13:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009239177] [2023-08-29 21:13:39,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009239177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:13:39,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:13:39,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:13:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563172445] [2023-08-29 21:13:39,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:13:39,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:13:39,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:13:39,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:13:39,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 21:13:39,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 114 [2023-08-29 21:13:39,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 24 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2023-08-29 21:13:39,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:13:39,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 114 [2023-08-29 21:13:39,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:13:39,168 INFO L130 PetriNetUnfolder]: 16/42 cut-off events. [2023-08-29 21:13:39,168 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:13:39,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 42 events. 16/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 12 based on Foata normal form. 10/47 useless extension candidates. Maximal degree in co-relation 86. Up to 33 conditions per place. [2023-08-29 21:13:39,169 INFO L137 encePairwiseOnDemand]: 111/114 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-29 21:13:39,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 14 transitions, 58 flow [2023-08-29 21:13:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:13:39,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:13:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-08-29 21:13:39,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2023-08-29 21:13:39,176 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 208 transitions. [2023-08-29 21:13:39,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 208 transitions. [2023-08-29 21:13:39,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:13:39,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 208 transitions. [2023-08-29 21:13:39,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-08-29 21:13:39,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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) [2023-08-29 21:13:39,180 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 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) [2023-08-29 21:13:39,181 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 24 flow. Second operand 4 states and 208 transitions. [2023-08-29 21:13:39,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 14 transitions, 58 flow [2023-08-29 21:13:39,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:13:39,181 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-08-29 21:13:39,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-08-29 21:13:39,183 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, 0 predicate places. [2023-08-29 21:13:39,183 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-08-29 21:13:39,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2023-08-29 21:13:39,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2023-08-29 21:13:39,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2023-08-29 21:13:39,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2023-08-29 21:13:39,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-29 21:13:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:13:39,187 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 21:13:39,194 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:13:39,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:13:39,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:13:39 BasicIcfg [2023-08-29 21:13:39,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:13:39,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:13:39,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:13:39,201 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:13:39,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:13:36" (3/4) ... [2023-08-29 21:13:39,204 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:13:39,210 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:13:39,214 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-29 21:13:39,214 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:13:39,214 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:13:39,253 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:13:39,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:13:39,254 INFO L158 Benchmark]: Toolchain (without parser) took 3867.68ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.8MB in the beginning and 37.5MB in the end (delta: 14.3MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,254 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:13:39,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.16ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 42.7MB in the end (delta: 9.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.65ms. Allocated memory is still 75.5MB. Free memory was 42.7MB in the beginning and 40.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,256 INFO L158 Benchmark]: Boogie Preprocessor took 45.04ms. Allocated memory is still 75.5MB. Free memory was 40.6MB in the beginning and 39.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,257 INFO L158 Benchmark]: RCFGBuilder took 454.24ms. Allocated memory is still 75.5MB. Free memory was 39.1MB in the beginning and 50.0MB in the end (delta: -10.8MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,257 INFO L158 Benchmark]: TraceAbstraction took 2751.77ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 49.1MB in the beginning and 40.2MB in the end (delta: 8.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,258 INFO L158 Benchmark]: Witness Printer took 52.03ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 37.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:13:39,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 40.8MB in the beginning and 40.7MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.16ms. Allocated memory is still 75.5MB. Free memory was 51.8MB in the beginning and 42.7MB in the end (delta: 9.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.65ms. Allocated memory is still 75.5MB. Free memory was 42.7MB in the beginning and 40.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.04ms. Allocated memory is still 75.5MB. Free memory was 40.6MB in the beginning and 39.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.24ms. Allocated memory is still 75.5MB. Free memory was 39.1MB in the beginning and 50.0MB in the end (delta: -10.8MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2751.77ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 49.1MB in the beginning and 40.2MB in the end (delta: 8.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 52.03ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 37.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 56 PlacesBefore, 16 PlacesAfterwards, 55 TransitionsBefore, 13 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 54 TotalNumberOfCompositions, 735 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 472, independent: 398, independent conditional: 0, independent unconditional: 398, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 226, independent: 209, independent conditional: 0, independent unconditional: 209, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 472, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 226, unknown conditional: 0, unknown unconditional: 226] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 936]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 69 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 21:13:39,286 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: TRUE