./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/09-regions_02-list_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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:44:32,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:44:32,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:44:32,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:44:32,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:44:32,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:44:32,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:44:32,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:44:32,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:44:32,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:44:32,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:44:32,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:44:32,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:44:32,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:44:32,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:44:32,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:44:32,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:44:32,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:44:32,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:44:32,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:44:32,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:44:32,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:44:32,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:44:32,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:44:32,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:44:32,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:44:32,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:44:32,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:44:32,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:44:32,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:44:32,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:44:32,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:44:32,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:44:32,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:44:32,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:44:32,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:44:32,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:44:32,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:44:32,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:44:32,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:44:32,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:44:32,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:44:32,315 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:44:32,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:44:32,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:44:32,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:44:32,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:44:32,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:44:32,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:44:32,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:44:32,319 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:44:32,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:44:32,320 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:44:32,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:44:32,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:44:32,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:44:32,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:44:32,321 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:44:32,321 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:44:32,321 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:44:32,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:44:32,322 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:44:32,322 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:44:32,322 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:44:32,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:44:32,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:44:32,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:44:32,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:44:32,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:44:32,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:44:32,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:44:32,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:44:32,324 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:44:32,324 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:44:32,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:44:32,325 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:44:32,325 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:44:32,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:44:32,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:44:32,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:44:32,657 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:44:32,657 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:44:32,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-30 03:44:33,868 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:44:34,184 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:44:34,188 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-30 03:44:34,211 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8df18d9f/f1e3ab6e776340d58decd2eea7ceb7bc/FLAG36f2a88f3 [2023-08-30 03:44:34,229 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8df18d9f/f1e3ab6e776340d58decd2eea7ceb7bc [2023-08-30 03:44:34,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:44:34,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:44:34,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:44:34,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:44:34,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:44:34,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2cab02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34, skipping insertion in model container [2023-08-30 03:44:34,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:44:34,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:44:34,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:44:34,776 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:44:34,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:44:34,922 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:44:34,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34 WrapperNode [2023-08-30 03:44:34,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:44:34,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:44:34,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:44:34,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:44:34,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,968 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2023-08-30 03:44:34,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:44:34,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:44:34,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:44:34,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:44:34,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:34,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:35,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:35,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:35,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:44:35,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:44:35,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:44:35,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:44:35,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (1/1) ... [2023-08-30 03:44:35,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:44:35,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:44:35,057 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) [2023-08-30 03:44:35,073 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 [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:44:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 03:44:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:44:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 03:44:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:44:35,101 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:44:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:44:35,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:44:35,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:44:35,103 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:44:35,317 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:44:35,319 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:44:35,632 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:44:35,640 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:44:35,641 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:44:35,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:44:35 BoogieIcfgContainer [2023-08-30 03:44:35,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:44:35,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:44:35,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:44:35,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:44:35,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:44:34" (1/3) ... [2023-08-30 03:44:35,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b4787c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:44:35, skipping insertion in model container [2023-08-30 03:44:35,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:44:34" (2/3) ... [2023-08-30 03:44:35,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b4787c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:44:35, skipping insertion in model container [2023-08-30 03:44:35,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:44:35" (3/3) ... [2023-08-30 03:44:35,653 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-08-30 03:44:35,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:44:35,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2023-08-30 03:44:35,670 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:44:35,750 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:44:35,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 117 transitions, 239 flow [2023-08-30 03:44:35,823 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2023-08-30 03:44:35,824 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:35,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 03:44:35,827 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 117 transitions, 239 flow [2023-08-30 03:44:35,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 116 transitions, 235 flow [2023-08-30 03:44:35,834 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:44:35,850 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 116 transitions, 235 flow [2023-08-30 03:44:35,852 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 116 transitions, 235 flow [2023-08-30 03:44:35,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 235 flow [2023-08-30 03:44:35,900 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2023-08-30 03:44:35,900 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:44:35,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 116 events. 0/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 03:44:35,902 INFO L119 LiptonReduction]: Number of co-enabled transitions 1472 [2023-08-30 03:44:56,124 WARN L222 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 221 DAG size of output: 215 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:45:02,738 INFO L134 LiptonReduction]: Checked pairs total: 6592 [2023-08-30 03:45:02,738 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-30 03:45:02,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:45:02,753 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;@2984dd9e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:45:02,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-30 03:45:02,755 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:45:02,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:45:02,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:02,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:45:02,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:02,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 427, now seen corresponding path program 1 times [2023-08-30 03:45:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:02,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924767147] [2023-08-30 03:45:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:02,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:02,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924767147] [2023-08-30 03:45:02,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924767147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:02,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:02,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:45:02,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363956076] [2023-08-30 03:45:02,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:02,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:45:02,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:02,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:45:02,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:45:02,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 244 [2023-08-30 03:45:02,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2023-08-30 03:45:02,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:02,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 244 [2023-08-30 03:45:02,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:03,053 INFO L130 PetriNetUnfolder]: 120/296 cut-off events. [2023-08-30 03:45:03,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:45:03,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 296 events. 120/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1301 event pairs, 120 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 556. Up to 265 conditions per place. [2023-08-30 03:45:03,058 INFO L137 encePairwiseOnDemand]: 230/244 looper letters, 24 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-08-30 03:45:03,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 111 flow [2023-08-30 03:45:03,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:45:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:45:03,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 270 transitions. [2023-08-30 03:45:03,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5532786885245902 [2023-08-30 03:45:03,071 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 270 transitions. [2023-08-30 03:45:03,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 270 transitions. [2023-08-30 03:45:03,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:03,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 270 transitions. [2023-08-30 03:45:03,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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) [2023-08-30 03:45:03,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 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) [2023-08-30 03:45:03,082 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 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) [2023-08-30 03:45:03,083 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 2 states and 270 transitions. [2023-08-30 03:45:03,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 111 flow [2023-08-30 03:45:03,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:45:03,087 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 62 flow [2023-08-30 03:45:03,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=62, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-08-30 03:45:03,092 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-30 03:45:03,092 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 62 flow [2023-08-30 03:45:03,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2023-08-30 03:45:03,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:03,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:45:03,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:45:03,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:03,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:03,094 INFO L85 PathProgramCache]: Analyzing trace with hash 12901781, now seen corresponding path program 1 times [2023-08-30 03:45:03,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:03,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378532409] [2023-08-30 03:45:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:03,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:03,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:03,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378532409] [2023-08-30 03:45:03,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378532409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:03,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:03,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:45:03,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838355717] [2023-08-30 03:45:03,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:03,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:45:03,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:03,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:45:03,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:45:03,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 244 [2023-08-30 03:45:03,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-08-30 03:45:03,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:03,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 244 [2023-08-30 03:45:03,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:03,607 INFO L130 PetriNetUnfolder]: 124/307 cut-off events. [2023-08-30 03:45:03,608 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:45:03,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 307 events. 124/307 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1365 event pairs, 72 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 590. Up to 187 conditions per place. [2023-08-30 03:45:03,610 INFO L137 encePairwiseOnDemand]: 236/244 looper letters, 34 selfloop transitions, 5 changer transitions 0/43 dead transitions. [2023-08-30 03:45:03,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 166 flow [2023-08-30 03:45:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:45:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:45:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-08-30 03:45:03,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48770491803278687 [2023-08-30 03:45:03,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-08-30 03:45:03,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-08-30 03:45:03,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:03,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-08-30 03:45:03,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2023-08-30 03:45:03,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:03,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:03,618 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 62 flow. Second operand 3 states and 357 transitions. [2023-08-30 03:45:03,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 166 flow [2023-08-30 03:45:03,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:45:03,620 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 96 flow [2023-08-30 03:45:03,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2023-08-30 03:45:03,621 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2023-08-30 03:45:03,621 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 96 flow [2023-08-30 03:45:03,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2023-08-30 03:45:03,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:03,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:45:03,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:45:03,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:03,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash 12901782, now seen corresponding path program 1 times [2023-08-30 03:45:03,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:03,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023304416] [2023-08-30 03:45:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:03,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:03,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023304416] [2023-08-30 03:45:03,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023304416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:03,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:03,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:45:03,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204763647] [2023-08-30 03:45:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:03,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:45:03,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:45:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:45:03,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 244 [2023-08-30 03:45:03,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2023-08-30 03:45:03,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:03,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 244 [2023-08-30 03:45:03,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:03,955 INFO L130 PetriNetUnfolder]: 131/334 cut-off events. [2023-08-30 03:45:03,956 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2023-08-30 03:45:03,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 334 events. 131/334 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1718 event pairs, 17 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 721. Up to 284 conditions per place. [2023-08-30 03:45:03,959 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 36 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-30 03:45:03,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 196 flow [2023-08-30 03:45:03,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:45:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:45:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-08-30 03:45:03,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2023-08-30 03:45:03,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-08-30 03:45:03,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-08-30 03:45:03,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:03,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-08-30 03:45:03,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-08-30 03:45:03,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:03,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:03,966 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 96 flow. Second operand 3 states and 354 transitions. [2023-08-30 03:45:03,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 196 flow [2023-08-30 03:45:03,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:45:03,968 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 94 flow [2023-08-30 03:45:03,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-08-30 03:45:03,969 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -10 predicate places. [2023-08-30 03:45:03,970 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 94 flow [2023-08-30 03:45:03,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2023-08-30 03:45:03,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:03,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:45:03,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:45:03,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:03,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:03,971 INFO L85 PathProgramCache]: Analyzing trace with hash 12902409, now seen corresponding path program 1 times [2023-08-30 03:45:03,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:03,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041064414] [2023-08-30 03:45:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:03,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:04,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:04,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041064414] [2023-08-30 03:45:04,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041064414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:04,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:04,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:45:04,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108579313] [2023-08-30 03:45:04,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:04,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:45:04,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:04,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:45:04,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:45:04,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 244 [2023-08-30 03:45:04,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2023-08-30 03:45:04,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:04,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 244 [2023-08-30 03:45:04,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:04,288 INFO L130 PetriNetUnfolder]: 143/369 cut-off events. [2023-08-30 03:45:04,289 INFO L131 PetriNetUnfolder]: For 23/24 co-relation queries the response was YES. [2023-08-30 03:45:04,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 369 events. 143/369 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1904 event pairs, 21 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 802. Up to 212 conditions per place. [2023-08-30 03:45:04,293 INFO L137 encePairwiseOnDemand]: 237/244 looper letters, 42 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-08-30 03:45:04,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 234 flow [2023-08-30 03:45:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:45:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:45:04,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-30 03:45:04,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5095628415300546 [2023-08-30 03:45:04,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-30 03:45:04,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-30 03:45:04,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:04,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-30 03:45:04,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-08-30 03:45:04,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:04,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:04,303 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 94 flow. Second operand 3 states and 373 transitions. [2023-08-30 03:45:04,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 234 flow [2023-08-30 03:45:04,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:45:04,306 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 132 flow [2023-08-30 03:45:04,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-08-30 03:45:04,307 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-30 03:45:04,307 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 132 flow [2023-08-30 03:45:04,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2023-08-30 03:45:04,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:04,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:45:04,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:45:04,308 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:04,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash 12902429, now seen corresponding path program 1 times [2023-08-30 03:45:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:04,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667286108] [2023-08-30 03:45:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:04,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:04,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:04,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667286108] [2023-08-30 03:45:04,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667286108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:04,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:45:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577599643] [2023-08-30 03:45:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:45:04,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:45:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:45:04,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 244 [2023-08-30 03:45:04,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-08-30 03:45:04,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:04,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 244 [2023-08-30 03:45:04,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:04,661 INFO L130 PetriNetUnfolder]: 127/335 cut-off events. [2023-08-30 03:45:04,661 INFO L131 PetriNetUnfolder]: For 91/93 co-relation queries the response was YES. [2023-08-30 03:45:04,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 335 events. 127/335 cut-off events. For 91/93 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1717 event pairs, 30 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 804. Up to 286 conditions per place. [2023-08-30 03:45:04,664 INFO L137 encePairwiseOnDemand]: 242/244 looper letters, 37 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-08-30 03:45:04,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 216 flow [2023-08-30 03:45:04,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:45:04,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:45:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-08-30 03:45:04,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5013661202185792 [2023-08-30 03:45:04,666 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-08-30 03:45:04,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-08-30 03:45:04,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:04,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-08-30 03:45:04,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2023-08-30 03:45:04,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:04,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:04,670 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 132 flow. Second operand 3 states and 367 transitions. [2023-08-30 03:45:04,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 216 flow [2023-08-30 03:45:04,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:45:04,695 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 116 flow [2023-08-30 03:45:04,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2023-08-30 03:45:04,695 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -9 predicate places. [2023-08-30 03:45:04,696 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 116 flow [2023-08-30 03:45:04,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2023-08-30 03:45:04,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:04,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:45:04,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:45:04,696 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:04,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:04,697 INFO L85 PathProgramCache]: Analyzing trace with hash 399961365, now seen corresponding path program 1 times [2023-08-30 03:45:04,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:04,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622458907] [2023-08-30 03:45:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:04,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:04,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622458907] [2023-08-30 03:45:04,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622458907] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:04,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:04,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:45:04,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814933406] [2023-08-30 03:45:04,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:04,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:45:04,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:45:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:45:04,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 244 [2023-08-30 03:45:04,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-08-30 03:45:04,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:04,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 244 [2023-08-30 03:45:04,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:05,024 INFO L130 PetriNetUnfolder]: 114/303 cut-off events. [2023-08-30 03:45:05,024 INFO L131 PetriNetUnfolder]: For 79/82 co-relation queries the response was YES. [2023-08-30 03:45:05,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 303 events. 114/303 cut-off events. For 79/82 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1453 event pairs, 98 based on Foata normal form. 8/227 useless extension candidates. Maximal degree in co-relation 721. Up to 270 conditions per place. [2023-08-30 03:45:05,026 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 27 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-30 03:45:05,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 166 flow [2023-08-30 03:45:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:45:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:45:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-08-30 03:45:05,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47950819672131145 [2023-08-30 03:45:05,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-08-30 03:45:05,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-08-30 03:45:05,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:05,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-08-30 03:45:05,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-08-30 03:45:05,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:05,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:05,032 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 116 flow. Second operand 3 states and 351 transitions. [2023-08-30 03:45:05,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 166 flow [2023-08-30 03:45:05,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 163 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:45:05,033 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 109 flow [2023-08-30 03:45:05,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2023-08-30 03:45:05,034 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2023-08-30 03:45:05,034 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 109 flow [2023-08-30 03:45:05,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-08-30 03:45:05,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:05,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:45:05,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:45:05,035 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:05,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:05,036 INFO L85 PathProgramCache]: Analyzing trace with hash 399960262, now seen corresponding path program 1 times [2023-08-30 03:45:05,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:05,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614510761] [2023-08-30 03:45:05,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:05,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:05,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614510761] [2023-08-30 03:45:05,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614510761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:05,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:05,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:45:05,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220747669] [2023-08-30 03:45:05,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:05,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:45:05,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:05,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:45:05,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:45:05,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 244 [2023-08-30 03:45:05,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-08-30 03:45:05,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:05,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 244 [2023-08-30 03:45:05,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:05,500 INFO L130 PetriNetUnfolder]: 142/351 cut-off events. [2023-08-30 03:45:05,500 INFO L131 PetriNetUnfolder]: For 53/55 co-relation queries the response was YES. [2023-08-30 03:45:05,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 836 conditions, 351 events. 142/351 cut-off events. For 53/55 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1731 event pairs, 53 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 830. Up to 226 conditions per place. [2023-08-30 03:45:05,502 INFO L137 encePairwiseOnDemand]: 238/244 looper letters, 39 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2023-08-30 03:45:05,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 252 flow [2023-08-30 03:45:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:45:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:45:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2023-08-30 03:45:05,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.444672131147541 [2023-08-30 03:45:05,504 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2023-08-30 03:45:05,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2023-08-30 03:45:05,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:05,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2023-08-30 03:45:05,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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) [2023-08-30 03:45:05,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-08-30 03:45:05,508 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-08-30 03:45:05,509 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 109 flow. Second operand 4 states and 434 transitions. [2023-08-30 03:45:05,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 252 flow [2023-08-30 03:45:05,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:45:05,510 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 160 flow [2023-08-30 03:45:05,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-08-30 03:45:05,511 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-08-30 03:45:05,511 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 160 flow [2023-08-30 03:45:05,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-08-30 03:45:05,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:05,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:45:05,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:45:05,512 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:05,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash 399960263, now seen corresponding path program 1 times [2023-08-30 03:45:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:05,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775558251] [2023-08-30 03:45:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:05,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:05,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:05,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775558251] [2023-08-30 03:45:05,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775558251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:05,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:05,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:45:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281179041] [2023-08-30 03:45:05,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:05,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:45:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:05,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:45:05,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:45:05,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 244 [2023-08-30 03:45:05,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2023-08-30 03:45:05,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:05,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 244 [2023-08-30 03:45:05,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:06,059 INFO L130 PetriNetUnfolder]: 141/351 cut-off events. [2023-08-30 03:45:06,059 INFO L131 PetriNetUnfolder]: For 173/175 co-relation queries the response was YES. [2023-08-30 03:45:06,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 351 events. 141/351 cut-off events. For 173/175 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1742 event pairs, 83 based on Foata normal form. 1/297 useless extension candidates. Maximal degree in co-relation 923. Up to 320 conditions per place. [2023-08-30 03:45:06,061 INFO L137 encePairwiseOnDemand]: 241/244 looper letters, 38 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2023-08-30 03:45:06,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 258 flow [2023-08-30 03:45:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:45:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:45:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2023-08-30 03:45:06,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4371584699453552 [2023-08-30 03:45:06,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2023-08-30 03:45:06,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2023-08-30 03:45:06,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:06,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2023-08-30 03:45:06,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2023-08-30 03:45:06,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:06,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 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) [2023-08-30 03:45:06,066 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 160 flow. Second operand 3 states and 320 transitions. [2023-08-30 03:45:06,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 258 flow [2023-08-30 03:45:06,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:45:06,069 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 168 flow [2023-08-30 03:45:06,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2023-08-30 03:45:06,071 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-30 03:45:06,072 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 168 flow [2023-08-30 03:45:06,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2023-08-30 03:45:06,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:06,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:45:06,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:45:06,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:06,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash -486130822, now seen corresponding path program 1 times [2023-08-30 03:45:06,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:06,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698927931] [2023-08-30 03:45:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:06,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:06,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698927931] [2023-08-30 03:45:06,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698927931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:06,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:06,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:45:06,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965177380] [2023-08-30 03:45:06,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:06,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:45:06,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:06,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:45:06,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:45:06,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 244 [2023-08-30 03:45:06,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 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) [2023-08-30 03:45:06,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:06,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 244 [2023-08-30 03:45:06,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:06,741 INFO L130 PetriNetUnfolder]: 198/508 cut-off events. [2023-08-30 03:45:06,741 INFO L131 PetriNetUnfolder]: For 243/249 co-relation queries the response was YES. [2023-08-30 03:45:06,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1343 conditions, 508 events. 198/508 cut-off events. For 243/249 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2980 event pairs, 100 based on Foata normal form. 9/424 useless extension candidates. Maximal degree in co-relation 1333. Up to 222 conditions per place. [2023-08-30 03:45:06,744 INFO L137 encePairwiseOnDemand]: 240/244 looper letters, 51 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-30 03:45:06,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 354 flow [2023-08-30 03:45:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:45:06,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:45:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2023-08-30 03:45:06,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45389344262295084 [2023-08-30 03:45:06,746 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2023-08-30 03:45:06,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2023-08-30 03:45:06,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:06,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2023-08-30 03:45:06,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 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) [2023-08-30 03:45:06,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-08-30 03:45:06,750 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 244.0) internal successors, (1220), 5 states have internal predecessors, (1220), 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) [2023-08-30 03:45:06,751 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 168 flow. Second operand 4 states and 443 transitions. [2023-08-30 03:45:06,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 354 flow [2023-08-30 03:45:06,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 59 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:45:06,753 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 186 flow [2023-08-30 03:45:06,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2023-08-30 03:45:06,754 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2023-08-30 03:45:06,754 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 186 flow [2023-08-30 03:45:06,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 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) [2023-08-30 03:45:06,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:06,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:45:06,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:45:06,755 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:06,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:06,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2110938814, now seen corresponding path program 1 times [2023-08-30 03:45:06,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:06,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945589239] [2023-08-30 03:45:06,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:06,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:07,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:07,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945589239] [2023-08-30 03:45:07,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945589239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:07,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:07,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:45:07,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206907685] [2023-08-30 03:45:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:07,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:45:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:45:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:45:07,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 244 [2023-08-30 03:45:07,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-08-30 03:45:07,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:07,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 244 [2023-08-30 03:45:07,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:07,499 INFO L130 PetriNetUnfolder]: 215/547 cut-off events. [2023-08-30 03:45:07,500 INFO L131 PetriNetUnfolder]: For 376/376 co-relation queries the response was YES. [2023-08-30 03:45:07,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 547 events. 215/547 cut-off events. For 376/376 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3208 event pairs, 117 based on Foata normal form. 8/437 useless extension candidates. Maximal degree in co-relation 1488. Up to 384 conditions per place. [2023-08-30 03:45:07,503 INFO L137 encePairwiseOnDemand]: 236/244 looper letters, 45 selfloop transitions, 10 changer transitions 0/56 dead transitions. [2023-08-30 03:45:07,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 387 flow [2023-08-30 03:45:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:45:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:45:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2023-08-30 03:45:07,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40081967213114755 [2023-08-30 03:45:07,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2023-08-30 03:45:07,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2023-08-30 03:45:07,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:07,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2023-08-30 03:45:07,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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) [2023-08-30 03:45:07,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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) [2023-08-30 03:45:07,510 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 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) [2023-08-30 03:45:07,510 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 186 flow. Second operand 5 states and 489 transitions. [2023-08-30 03:45:07,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 387 flow [2023-08-30 03:45:07,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 371 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 03:45:07,513 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 267 flow [2023-08-30 03:45:07,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2023-08-30 03:45:07,514 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 5 predicate places. [2023-08-30 03:45:07,514 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 267 flow [2023-08-30 03:45:07,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-08-30 03:45:07,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:07,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:45:07,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:45:07,515 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:07,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2110938815, now seen corresponding path program 1 times [2023-08-30 03:45:07,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:07,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205104357] [2023-08-30 03:45:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:07,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:45:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:45:07,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:45:07,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205104357] [2023-08-30 03:45:07,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205104357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:45:07,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:45:07,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:45:07,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795626759] [2023-08-30 03:45:07,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:45:07,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:45:07,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:45:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:45:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:45:08,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 244 [2023-08-30 03:45:08,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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) [2023-08-30 03:45:08,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:45:08,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 244 [2023-08-30 03:45:08,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:45:08,536 INFO L130 PetriNetUnfolder]: 298/793 cut-off events. [2023-08-30 03:45:08,536 INFO L131 PetriNetUnfolder]: For 807/813 co-relation queries the response was YES. [2023-08-30 03:45:08,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 793 events. 298/793 cut-off events. For 807/813 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5323 event pairs, 89 based on Foata normal form. 8/659 useless extension candidates. Maximal degree in co-relation 2274. Up to 216 conditions per place. [2023-08-30 03:45:08,542 INFO L137 encePairwiseOnDemand]: 235/244 looper letters, 76 selfloop transitions, 25 changer transitions 0/104 dead transitions. [2023-08-30 03:45:08,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 104 transitions, 711 flow [2023-08-30 03:45:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 03:45:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 03:45:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1001 transitions. [2023-08-30 03:45:08,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41024590163934427 [2023-08-30 03:45:08,546 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1001 transitions. [2023-08-30 03:45:08,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1001 transitions. [2023-08-30 03:45:08,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:45:08,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1001 transitions. [2023-08-30 03:45:08,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 100.1) internal successors, (1001), 10 states have internal predecessors, (1001), 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) [2023-08-30 03:45:08,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 244.0) internal successors, (2684), 11 states have internal predecessors, (2684), 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) [2023-08-30 03:45:08,555 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 244.0) internal successors, (2684), 11 states have internal predecessors, (2684), 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) [2023-08-30 03:45:08,555 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 267 flow. Second operand 10 states and 1001 transitions. [2023-08-30 03:45:08,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 104 transitions, 711 flow [2023-08-30 03:45:08,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 104 transitions, 709 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-30 03:45:08,560 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 440 flow [2023-08-30 03:45:08,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=440, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2023-08-30 03:45:08,560 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2023-08-30 03:45:08,561 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 440 flow [2023-08-30 03:45:08,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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) [2023-08-30 03:45:08,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:45:08,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:45:08,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:45:08,563 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2023-08-30 03:45:08,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:45:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash 977157887, now seen corresponding path program 1 times [2023-08-30 03:45:08,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:45:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639426350] [2023-08-30 03:45:08,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:45:08,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:45:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:45:08,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:45:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:45:08,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:45:08,653 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:45:08,654 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (37 of 38 remaining) [2023-08-30 03:45:08,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 38 remaining) [2023-08-30 03:45:08,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 38 remaining) [2023-08-30 03:45:08,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 38 remaining) [2023-08-30 03:45:08,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 38 remaining) [2023-08-30 03:45:08,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 38 remaining) [2023-08-30 03:45:08,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 38 remaining) [2023-08-30 03:45:08,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 38 remaining) [2023-08-30 03:45:08,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 38 remaining) [2023-08-30 03:45:08,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 38 remaining) [2023-08-30 03:45:08,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 38 remaining) [2023-08-30 03:45:08,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 38 remaining) [2023-08-30 03:45:08,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 38 remaining) [2023-08-30 03:45:08,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 38 remaining) [2023-08-30 03:45:08,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 38 remaining) [2023-08-30 03:45:08,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 38 remaining) [2023-08-30 03:45:08,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 38 remaining) [2023-08-30 03:45:08,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 38 remaining) [2023-08-30 03:45:08,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 38 remaining) [2023-08-30 03:45:08,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 38 remaining) [2023-08-30 03:45:08,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 03:45:08,664 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:45:08,669 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:45:08,669 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:45:08,680 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,681 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,681 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,681 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,681 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,681 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,682 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,682 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,683 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,683 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,683 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,683 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,683 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,683 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,684 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,684 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,684 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,684 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,684 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,684 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,685 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,685 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,685 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,685 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,685 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,685 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,686 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,686 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,686 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,686 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,686 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,686 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,688 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,688 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,688 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,688 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,688 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,688 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,689 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,690 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,690 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,690 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,691 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,691 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,691 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,692 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,692 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,692 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,692 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,692 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,692 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,693 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,693 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,693 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,694 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,694 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,694 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,694 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,695 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,695 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,695 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,695 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,695 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,695 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,696 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,696 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2023-08-30 03:45:08,696 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,697 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2023-08-30 03:45:08,697 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,697 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2023-08-30 03:45:08,699 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,699 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2023-08-30 03:45:08,699 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2023-08-30 03:45:08,699 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2023-08-30 03:45:08,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:45:08 BasicIcfg [2023-08-30 03:45:08,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:45:08,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:45:08,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:45:08,716 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:45:08,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:44:35" (3/4) ... [2023-08-30 03:45:08,719 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:45:08,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:45:08,719 INFO L158 Benchmark]: Toolchain (without parser) took 34486.84ms. Allocated memory was 79.7MB in the beginning and 201.3MB in the end (delta: 121.6MB). Free memory was 55.5MB in the beginning and 101.9MB in the end (delta: -46.5MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2023-08-30 03:45:08,719 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:45:08,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.50ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 37.3MB in the end (delta: 18.0MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-08-30 03:45:08,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.18ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 34.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:45:08,720 INFO L158 Benchmark]: Boogie Preprocessor took 41.80ms. Allocated memory is still 79.7MB. Free memory was 34.5MB in the beginning and 55.9MB in the end (delta: -21.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-08-30 03:45:08,720 INFO L158 Benchmark]: RCFGBuilder took 632.23ms. Allocated memory is still 79.7MB. Free memory was 55.9MB in the beginning and 36.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 03:45:08,721 INFO L158 Benchmark]: TraceAbstraction took 33069.74ms. Allocated memory was 79.7MB in the beginning and 201.3MB in the end (delta: 121.6MB). Free memory was 35.9MB in the beginning and 101.9MB in the end (delta: -66.0MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2023-08-30 03:45:08,721 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 201.3MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:45:08,722 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 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.50ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 37.3MB in the end (delta: 18.0MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.18ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 34.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.80ms. Allocated memory is still 79.7MB. Free memory was 34.5MB in the beginning and 55.9MB in the end (delta: -21.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * RCFGBuilder took 632.23ms. Allocated memory is still 79.7MB. Free memory was 55.9MB in the beginning and 36.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 33069.74ms. Allocated memory was 79.7MB in the beginning and 201.3MB in the end (delta: 121.6MB). Free memory was 35.9MB in the beginning and 101.9MB in the end (delta: -66.0MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 201.3MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.9s, 120 PlacesBefore, 48 PlacesAfterwards, 116 TransitionsBefore, 44 TransitionsAfterwards, 1472 CoEnabledTransitionPairs, 7 FixpointIterations, 87 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 127 TotalNumberOfCompositions, 6592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2605, independent: 2242, independent conditional: 0, independent unconditional: 2242, dependent: 363, dependent conditional: 0, dependent unconditional: 363, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 836, independent: 776, independent conditional: 0, independent unconditional: 776, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2605, independent: 1466, independent conditional: 0, independent unconditional: 1466, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 836, unknown conditional: 0, unknown unconditional: 836] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1244. Possible FailurePath: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] 0 struct s *p = malloc(sizeof(struct s)); [L1247] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(p,9) [L1248] 0 A = malloc(sizeof(struct s)) [L1249] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1249] RET 0 init(A,3) [L1250] 0 A->next = p [L1251] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={5:0}, A_mutex={1:0}, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, p={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={7:0}] [L1253] EXPR 0 A->next [L1253] 0 p = A->next [L1254] 0 p->datum [L1256] 0 return 0; [L1256] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 152 locations, 38 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: 32.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 27.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1616 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2149 IncrementalHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 215 mSDtfsCounter, 2149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=440occurred in iteration=11, InterpolantAutomatonStates: 43, 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, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 [2023-08-30 03:45:08,756 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 ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i -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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:45:10,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:45:10,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:45:10,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:45:10,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:45:10,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:45:10,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:45:10,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:45:10,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:45:10,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:45:10,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:45:10,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:45:10,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:45:10,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:45:10,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:45:10,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:45:10,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:45:10,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:45:10,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:45:10,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:45:10,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:45:10,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:45:10,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:45:10,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:45:10,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:45:10,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:45:10,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:45:10,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:45:10,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:45:10,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:45:10,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:45:10,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:45:10,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:45:10,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:45:10,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:45:10,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:45:10,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:45:10,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:45:10,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:45:10,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:45:10,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:45:10,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:45:10,671 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:45:10,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:45:10,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:45:10,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:45:10,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:45:10,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:45:10,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:45:10,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:45:10,674 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:45:10,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:45:10,674 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:45:10,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:45:10,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:45:10,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:45:10,675 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:45:10,676 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:45:10,676 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:45:10,676 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:45:10,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:45:10,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:45:10,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:45:10,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:45:10,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:45:10,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:45:10,677 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:45:10,677 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:45:10,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:45:10,677 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:45:10,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:45:10,678 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:45:10,678 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:45:10,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:45:10,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:45:11,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:45:11,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:45:11,021 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:45:11,021 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:45:11,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-30 03:45:12,079 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:45:12,333 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:45:12,333 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-30 03:45:12,357 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2edbef0/48278b277309481183b687382876e54d/FLAG91075ac2f [2023-08-30 03:45:12,372 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2edbef0/48278b277309481183b687382876e54d [2023-08-30 03:45:12,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:45:12,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:45:12,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:45:12,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:45:12,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:45:12,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:45:12" (1/1) ... [2023-08-30 03:45:12,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b909d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:12, skipping insertion in model container [2023-08-30 03:45:12,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:45:12" (1/1) ... [2023-08-30 03:45:12,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:45:12,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:45:13,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:45:13,033 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:45:13,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:45:13,183 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:45:13,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13 WrapperNode [2023-08-30 03:45:13,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:45:13,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:45:13,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:45:13,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:45:13,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,250 INFO L138 Inliner]: procedures = 369, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2023-08-30 03:45:13,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:45:13,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:45:13,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:45:13,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:45:13,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:45:13,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:45:13,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:45:13,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:45:13,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (1/1) ... [2023-08-30 03:45:13,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:45:13,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:45:13,326 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) [2023-08-30 03:45:13,330 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 [2023-08-30 03:45:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:45:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:45:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 03:45:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:45:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:45:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:45:13,359 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:45:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 03:45:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:45:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 03:45:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:45:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:45:13,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:45:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:45:13,362 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:45:13,540 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:45:13,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:45:13,930 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:45:13,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:45:13,936 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:45:13,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:45:13 BoogieIcfgContainer [2023-08-30 03:45:13,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:45:13,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:45:13,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:45:13,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:45:13,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:45:12" (1/3) ... [2023-08-30 03:45:13,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cf7d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:45:13, skipping insertion in model container [2023-08-30 03:45:13,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:45:13" (2/3) ... [2023-08-30 03:45:13,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cf7d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:45:13, skipping insertion in model container [2023-08-30 03:45:13,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:45:13" (3/3) ... [2023-08-30 03:45:13,947 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-08-30 03:45:13,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:45:13,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2023-08-30 03:45:13,963 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:45:14,090 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:45:14,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 118 transitions, 241 flow [2023-08-30 03:45:14,192 INFO L130 PetriNetUnfolder]: 0/117 cut-off events. [2023-08-30 03:45:14,192 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:45:14,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 0/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 03:45:14,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 118 transitions, 241 flow [2023-08-30 03:45:14,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 117 transitions, 237 flow [2023-08-30 03:45:14,203 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:45:14,220 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 117 transitions, 237 flow [2023-08-30 03:45:14,223 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 117 transitions, 237 flow [2023-08-30 03:45:14,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 117 transitions, 237 flow [2023-08-30 03:45:14,267 INFO L130 PetriNetUnfolder]: 0/117 cut-off events. [2023-08-30 03:45:14,268 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:45:14,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 0/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 03:45:14,269 INFO L119 LiptonReduction]: Number of co-enabled transitions 1472 [2023-08-30 03:45:48,374 WARN L222 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 92 DAG size of output: 91 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:46:01,114 WARN L222 SmtUtils]: Spent 9.37s on a formula simplification. DAG size of input: 92 DAG size of output: 91 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:46:44,285 WARN L222 SmtUtils]: Spent 26.55s on a formula simplification that was a NOOP. DAG size: 168 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:47:05,828 WARN L222 SmtUtils]: Spent 21.54s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:47:31,385 WARN L222 SmtUtils]: Spent 25.55s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:47:54,800 WARN L222 SmtUtils]: Spent 23.41s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:49:22,111 WARN L222 SmtUtils]: Spent 1.45m on a formula simplification. DAG size of input: 204 DAG size of output: 203 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:50:01,210 WARN L222 SmtUtils]: Spent 39.10s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:51:20,609 WARN L222 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 203 DAG size of output: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:51:57,270 WARN L222 SmtUtils]: Spent 36.66s on a formula simplification that was a NOOP. DAG size: 198 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:55:26,025 WARN L222 SmtUtils]: Spent 3.48m on a formula simplification. DAG size of input: 226 DAG size of output: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 03:57:07,816 WARN L222 SmtUtils]: Spent 1.70m on a formula simplification that was a NOOP. DAG size: 217 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15