./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.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 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:06:33,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:06:33,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:06:33,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:06:33,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:06:33,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:06:33,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:06:33,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:06:33,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:06:33,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:06:33,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:06:33,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:06:33,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:06:33,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:06:33,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:06:33,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:06:33,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:06:33,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:06:33,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:06:33,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:06:33,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:06:33,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:06:33,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:06:33,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:06:33,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:06:33,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:06:33,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:06:33,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:06:33,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:06:33,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:06:33,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:06:33,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:06:33,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:06:33,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:06:33,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:06:33,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:06:33,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:06:33,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:06:33,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:06:33,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:06:33,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:06:33,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:06:33,359 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:06:33,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:06:33,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:06:33,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:06:33,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:06:33,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:06:33,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:06:33,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:06:33,363 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:06:33,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:06:33,365 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:06:33,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:06:33,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:06:33,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:06:33,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:06:33,366 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:06:33,366 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:06:33,366 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:06:33,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:06:33,367 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:06:33,367 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:06:33,367 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:06:33,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:06:33,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:06:33,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:06:33,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:06:33,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:06:33,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:06:33,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:06:33,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:06:33,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:06:33,369 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:06:33,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:06:33,370 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:06:33,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:06:33,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:06:33,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:06:33,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:06:33,746 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:06:33,746 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:06:33,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-09-01 00:06:35,012 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:06:35,267 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:06:35,268 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-09-01 00:06:35,278 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f87dc233/29275d6691144899bee1b2a8b373c026/FLAG5d08f3ad6 [2023-09-01 00:06:35,292 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f87dc233/29275d6691144899bee1b2a8b373c026 [2023-09-01 00:06:35,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:06:35,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:06:35,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:06:35,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:06:35,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:06:35,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5a7a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35, skipping insertion in model container [2023-09-01 00:06:35,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:06:35,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:06:35,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:06:35,632 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:06:35,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:06:35,732 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:06:35,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35 WrapperNode [2023-09-01 00:06:35,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:06:35,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:06:35,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:06:35,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:06:35,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,777 INFO L138 Inliner]: procedures = 163, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-09-01 00:06:35,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:06:35,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:06:35,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:06:35,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:06:35,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:06:35,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:06:35,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:06:35,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:06:35,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (1/1) ... [2023-09-01 00:06:35,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:06:35,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:06:35,847 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) [2023-09-01 00:06:35,852 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 [2023-09-01 00:06:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:06:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:06:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:06:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:06:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:06:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:06:35,876 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:06:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:06:35,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-09-01 00:06:35,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:06:35,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:06:35,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:06:35,878 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:06:36,049 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:06:36,051 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:06:36,265 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:06:36,271 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:06:36,271 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-09-01 00:06:36,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:06:36 BoogieIcfgContainer [2023-09-01 00:06:36,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:06:36,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:06:36,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:06:36,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:06:36,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:06:35" (1/3) ... [2023-09-01 00:06:36,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd97f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:06:36, skipping insertion in model container [2023-09-01 00:06:36,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:06:35" (2/3) ... [2023-09-01 00:06:36,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd97f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:06:36, skipping insertion in model container [2023-09-01 00:06:36,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:06:36" (3/3) ... [2023-09-01 00:06:36,284 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2023-09-01 00:06:36,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:06:36,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-09-01 00:06:36,301 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:06:36,344 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:06:36,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 74 transitions, 156 flow [2023-09-01 00:06:36,426 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2023-09-01 00:06:36,426 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:06:36,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 2/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-09-01 00:06:36,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 74 transitions, 156 flow [2023-09-01 00:06:36,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 69 transitions, 144 flow [2023-09-01 00:06:36,442 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:06:36,460 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 69 transitions, 144 flow [2023-09-01 00:06:36,472 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 69 transitions, 144 flow [2023-09-01 00:06:36,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 69 transitions, 144 flow [2023-09-01 00:06:36,500 INFO L130 PetriNetUnfolder]: 2/69 cut-off events. [2023-09-01 00:06:36,503 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:06:36,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 2/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-09-01 00:06:36,505 INFO L119 LiptonReduction]: Number of co-enabled transitions 570 [2023-09-01 00:06:38,620 INFO L134 LiptonReduction]: Checked pairs total: 1865 [2023-09-01 00:06:38,621 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-09-01 00:06:38,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:06:38,650 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;@2e156933, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:06:38,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-09-01 00:06:38,652 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-09-01 00:06:38,653 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:06:38,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:06:38,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:06:38,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:06:38,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:06:38,664 INFO L85 PathProgramCache]: Analyzing trace with hash 260, now seen corresponding path program 1 times [2023-09-01 00:06:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:06:38,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215650310] [2023-09-01 00:06:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:06:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:06:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:06:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:06:38,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:06:38,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215650310] [2023-09-01 00:06:38,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215650310] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:06:38,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:06:38,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:06:38,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232668079] [2023-09-01 00:06:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:06:38,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:06:38,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:06:38,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:06:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:06:38,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 131 [2023-09-01 00:06:38,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 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) [2023-09-01 00:06:38,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:06:38,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 131 [2023-09-01 00:06:38,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:06:38,918 INFO L130 PetriNetUnfolder]: 55/129 cut-off events. [2023-09-01 00:06:38,919 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:06:38,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 129 events. 55/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 428 event pairs, 48 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 242. Up to 122 conditions per place. [2023-09-01 00:06:38,921 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 19 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-09-01 00:06:38,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 86 flow [2023-09-01 00:06:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:06:38,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:06:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 164 transitions. [2023-09-01 00:06:38,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6259541984732825 [2023-09-01 00:06:38,934 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 164 transitions. [2023-09-01 00:06:38,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 164 transitions. [2023-09-01 00:06:38,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:06:38,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 164 transitions. [2023-09-01 00:06:38,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 82.0) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-09-01 00:06:38,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-09-01 00:06:38,946 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-09-01 00:06:38,948 INFO L175 Difference]: Start difference. First operand has 26 places, 24 transitions, 54 flow. Second operand 2 states and 164 transitions. [2023-09-01 00:06:38,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 86 flow [2023-09-01 00:06:38,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:06:38,953 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 44 flow [2023-09-01 00:06:38,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-09-01 00:06:38,960 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-09-01 00:06:38,961 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 44 flow [2023-09-01 00:06:38,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 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) [2023-09-01 00:06:38,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:06:38,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:06:38,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:06:38,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:06:38,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:06:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash 573692248, now seen corresponding path program 1 times [2023-09-01 00:06:38,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:06:38,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900436983] [2023-09-01 00:06:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:06:38,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:06:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:06:39,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:06:39,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:06:39,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900436983] [2023-09-01 00:06:39,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900436983] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:06:39,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:06:39,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:06:39,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622371660] [2023-09-01 00:06:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:06:39,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:06:39,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:06:39,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:06:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:06:39,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 131 [2023-09-01 00:06:39,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-09-01 00:06:39,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:06:39,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 131 [2023-09-01 00:06:39,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:06:39,360 INFO L130 PetriNetUnfolder]: 49/116 cut-off events. [2023-09-01 00:06:39,360 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:06:39,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 116 events. 49/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 362 event pairs, 42 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 225. Up to 107 conditions per place. [2023-09-01 00:06:39,362 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 16 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2023-09-01 00:06:39,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 78 flow [2023-09-01 00:06:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:06:39,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:06:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2023-09-01 00:06:39,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5521628498727735 [2023-09-01 00:06:39,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 217 transitions. [2023-09-01 00:06:39,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 217 transitions. [2023-09-01 00:06:39,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:06:39,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 217 transitions. [2023-09-01 00:06:39,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2023-09-01 00:06:39,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:39,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:39,374 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 44 flow. Second operand 3 states and 217 transitions. [2023-09-01 00:06:39,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 78 flow [2023-09-01 00:06:39,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:06:39,375 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 46 flow [2023-09-01 00:06:39,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2023-09-01 00:06:39,376 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-09-01 00:06:39,376 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 46 flow [2023-09-01 00:06:39,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2023-09-01 00:06:39,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:06:39,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:06:39,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:06:39,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:06:39,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:06:39,378 INFO L85 PathProgramCache]: Analyzing trace with hash 573692247, now seen corresponding path program 1 times [2023-09-01 00:06:39,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:06:39,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93871446] [2023-09-01 00:06:39,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:06:39,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:06:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:06:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:06:39,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:06:39,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93871446] [2023-09-01 00:06:39,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93871446] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:06:39,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:06:39,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:06:39,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337286597] [2023-09-01 00:06:39,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:06:39,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:06:39,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:06:39,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:06:39,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:06:39,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 131 [2023-09-01 00:06:39,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-09-01 00:06:39,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:06:39,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 131 [2023-09-01 00:06:39,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:06:39,554 INFO L130 PetriNetUnfolder]: 43/103 cut-off events. [2023-09-01 00:06:39,554 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:06:39,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 103 events. 43/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 296 event pairs, 36 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 201. Up to 94 conditions per place. [2023-09-01 00:06:39,555 INFO L137 encePairwiseOnDemand]: 128/131 looper letters, 15 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-09-01 00:06:39,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 78 flow [2023-09-01 00:06:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:06:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:06:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-09-01 00:06:39,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5267175572519084 [2023-09-01 00:06:39,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-09-01 00:06:39,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-09-01 00:06:39,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:06:39,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-09-01 00:06:39,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-09-01 00:06:39,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:39,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:39,560 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 3 states and 207 transitions. [2023-09-01 00:06:39,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 78 flow [2023-09-01 00:06:39,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 74 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:06:39,561 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 44 flow [2023-09-01 00:06:39,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2023-09-01 00:06:39,562 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-09-01 00:06:39,563 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 44 flow [2023-09-01 00:06:39,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-09-01 00:06:39,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:06:39,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:06:39,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:06:39,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:06:39,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:06:39,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2118346783, now seen corresponding path program 1 times [2023-09-01 00:06:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:06:39,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543497110] [2023-09-01 00:06:39,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:06:39,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:06:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:06:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:06:39,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:06:39,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543497110] [2023-09-01 00:06:39,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543497110] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:06:39,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:06:39,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:06:39,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460770429] [2023-09-01 00:06:39,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:06:39,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:06:39,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:06:39,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:06:39,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:06:39,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 131 [2023-09-01 00:06:39,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-09-01 00:06:39,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:06:39,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 131 [2023-09-01 00:06:39,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:06:39,793 INFO L130 PetriNetUnfolder]: 32/93 cut-off events. [2023-09-01 00:06:39,794 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:06:39,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 93 events. 32/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 290 event pairs, 12 based on Foata normal form. 8/95 useless extension candidates. Maximal degree in co-relation 185. Up to 49 conditions per place. [2023-09-01 00:06:39,795 INFO L137 encePairwiseOnDemand]: 123/131 looper letters, 21 selfloop transitions, 8 changer transitions 0/30 dead transitions. [2023-09-01 00:06:39,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 30 transitions, 124 flow [2023-09-01 00:06:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:06:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:06:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-09-01 00:06:39,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55470737913486 [2023-09-01 00:06:39,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-09-01 00:06:39,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-09-01 00:06:39,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:06:39,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-09-01 00:06:39,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-09-01 00:06:39,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:39,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:39,804 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 44 flow. Second operand 3 states and 218 transitions. [2023-09-01 00:06:39,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 30 transitions, 124 flow [2023-09-01 00:06:39,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:06:39,806 INFO L231 Difference]: Finished difference. Result has 24 places, 24 transitions, 84 flow [2023-09-01 00:06:39,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=24, PETRI_TRANSITIONS=24} [2023-09-01 00:06:39,808 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-09-01 00:06:39,808 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 24 transitions, 84 flow [2023-09-01 00:06:39,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-09-01 00:06:39,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:06:39,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:06:39,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:06:39,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:06:39,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:06:39,809 INFO L85 PathProgramCache]: Analyzing trace with hash 312862427, now seen corresponding path program 2 times [2023-09-01 00:06:39,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:06:39,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484420384] [2023-09-01 00:06:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:06:39,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:06:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:06:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:06:40,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:06:40,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484420384] [2023-09-01 00:06:40,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484420384] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:06:40,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:06:40,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:06:40,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961847985] [2023-09-01 00:06:40,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:06:40,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:06:40,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:06:40,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:06:40,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:06:40,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 131 [2023-09-01 00:06:40,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 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) [2023-09-01 00:06:40,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:06:40,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 131 [2023-09-01 00:06:40,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:06:40,104 INFO L130 PetriNetUnfolder]: 29/85 cut-off events. [2023-09-01 00:06:40,104 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-09-01 00:06:40,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 85 events. 29/85 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 250 event pairs, 11 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 226. Up to 55 conditions per place. [2023-09-01 00:06:40,108 INFO L137 encePairwiseOnDemand]: 124/131 looper letters, 16 selfloop transitions, 8 changer transitions 0/25 dead transitions. [2023-09-01 00:06:40,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 131 flow [2023-09-01 00:06:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:06:40,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:06:40,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2023-09-01 00:06:40,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5076335877862596 [2023-09-01 00:06:40,110 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 266 transitions. [2023-09-01 00:06:40,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 266 transitions. [2023-09-01 00:06:40,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:06:40,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 266 transitions. [2023-09-01 00:06:40,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 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) [2023-09-01 00:06:40,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2023-09-01 00:06:40,113 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2023-09-01 00:06:40,113 INFO L175 Difference]: Start difference. First operand has 24 places, 24 transitions, 84 flow. Second operand 4 states and 266 transitions. [2023-09-01 00:06:40,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 131 flow [2023-09-01 00:06:40,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:06:40,116 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 84 flow [2023-09-01 00:06:40,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2023-09-01 00:06:40,118 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2023-09-01 00:06:40,118 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 84 flow [2023-09-01 00:06:40,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 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) [2023-09-01 00:06:40,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:06:40,119 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:06:40,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:06:40,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-09-01 00:06:40,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:06:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash -110558371, now seen corresponding path program 3 times [2023-09-01 00:06:40,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:06:40,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130089475] [2023-09-01 00:06:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:06:40,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:06:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:06:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:06:40,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:06:40,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130089475] [2023-09-01 00:06:40,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130089475] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:06:40,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:06:40,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:06:40,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908043654] [2023-09-01 00:06:40,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:06:40,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:06:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:06:40,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:06:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:06:40,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 131 [2023-09-01 00:06:40,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2023-09-01 00:06:40,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:06:40,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 131 [2023-09-01 00:06:40,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:06:40,304 INFO L130 PetriNetUnfolder]: 27/80 cut-off events. [2023-09-01 00:06:40,307 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2023-09-01 00:06:40,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 80 events. 27/80 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 225 event pairs, 20 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 221. Up to 73 conditions per place. [2023-09-01 00:06:40,310 INFO L137 encePairwiseOnDemand]: 129/131 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-09-01 00:06:40,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 118 flow [2023-09-01 00:06:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:06:40,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:06:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2023-09-01 00:06:40,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55470737913486 [2023-09-01 00:06:40,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2023-09-01 00:06:40,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2023-09-01 00:06:40,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:06:40,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2023-09-01 00:06:40,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2023-09-01 00:06:40,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:40,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-09-01 00:06:40,314 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 84 flow. Second operand 3 states and 218 transitions. [2023-09-01 00:06:40,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 118 flow [2023-09-01 00:06:40,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:06:40,316 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-09-01 00:06:40,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-09-01 00:06:40,319 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-09-01 00:06:40,319 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-09-01 00:06:40,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2023-09-01 00:06:40,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2023-09-01 00:06:40,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2023-09-01 00:06:40,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2023-09-01 00:06:40,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2023-09-01 00:06:40,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2023-09-01 00:06:40,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2023-09-01 00:06:40,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 00:06:40,324 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-09-01 00:06:40,328 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:06:40,329 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:06:40,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:06:40 BasicIcfg [2023-09-01 00:06:40,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:06:40,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:06:40,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:06:40,334 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:06:40,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:06:36" (3/4) ... [2023-09-01 00:06:40,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 00:06:40,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 00:06:40,347 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-09-01 00:06:40,347 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:06:40,348 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:06:40,385 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 00:06:40,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:06:40,386 INFO L158 Benchmark]: Toolchain (without parser) took 5090.79ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 38.8MB in the beginning and 56.7MB in the end (delta: -18.0MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-09-01 00:06:40,386 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 30.2MB in the beginning and 30.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:06:40,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.37ms. Allocated memory is still 71.3MB. Free memory was 38.6MB in the beginning and 37.4MB in the end (delta: 1.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-09-01 00:06:40,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.62ms. Allocated memory is still 71.3MB. Free memory was 37.4MB in the beginning and 35.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 00:06:40,387 INFO L158 Benchmark]: Boogie Preprocessor took 27.23ms. Allocated memory is still 71.3MB. Free memory was 35.4MB in the beginning and 33.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:06:40,387 INFO L158 Benchmark]: RCFGBuilder took 466.71ms. Allocated memory is still 71.3MB. Free memory was 33.9MB in the beginning and 41.9MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-09-01 00:06:40,387 INFO L158 Benchmark]: TraceAbstraction took 4058.01ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 41.1MB in the beginning and 58.9MB in the end (delta: -17.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-09-01 00:06:40,387 INFO L158 Benchmark]: Witness Printer took 51.61ms. Allocated memory is still 104.9MB. Free memory was 58.9MB in the beginning and 56.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:06:40,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 30.2MB in the beginning and 30.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.37ms. Allocated memory is still 71.3MB. Free memory was 38.6MB in the beginning and 37.4MB in the end (delta: 1.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.62ms. Allocated memory is still 71.3MB. Free memory was 37.4MB in the beginning and 35.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.23ms. Allocated memory is still 71.3MB. Free memory was 35.4MB in the beginning and 33.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.71ms. Allocated memory is still 71.3MB. Free memory was 33.9MB in the beginning and 41.9MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4058.01ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 41.1MB in the beginning and 58.9MB in the end (delta: -17.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 51.61ms. Allocated memory is still 104.9MB. Free memory was 58.9MB in the beginning and 56.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 71 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 24 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 1865 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 918, independent: 766, independent conditional: 0, independent unconditional: 766, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 300, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 918, independent: 489, independent conditional: 0, independent unconditional: 489, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 300, unknown conditional: 0, unknown unconditional: 300] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 90 locations, 6 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: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 241 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 305 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 39 mSDtfsCounter, 305 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=4, InterpolantAutomatonStates: 18, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 00:06:40,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE