./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.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/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.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 fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 --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 03:20:25,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:20:25,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:20:25,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:20:25,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:20:25,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:20:25,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:20:25,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:20:25,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:20:25,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:20:25,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:20:25,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:20:25,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:20:25,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:20:25,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:20:25,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:20:25,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:20:25,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:20:25,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:20:25,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:20:25,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:20:25,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:20:25,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:20:25,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:20:25,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:20:25,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:20:25,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:20:25,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:20:25,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:20:25,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:20:25,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:20:25,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:20:25,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:20:25,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:20:25,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:20:25,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:20:25,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:20:25,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:20:25,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:20:25,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:20:25,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:20:25,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:20:25,555 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:20:25,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:20:25,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:20:25,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:20:25,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:20:25,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:20:25,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:20:25,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:20:25,559 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:20:25,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:20:25,560 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:20:25,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:20:25,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:20:25,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:20:25,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:20:25,561 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:20:25,561 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:20:25,561 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:20:25,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:20:25,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:20:25,562 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:20:25,562 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:20:25,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:20:25,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:20:25,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:20:25,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:20:25,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:20:25,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:20:25,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:20:25,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:20:25,564 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:20:25,564 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:20:25,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:20:25,564 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:20:25,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb302bfc042709458f72100356b9fd74bb7921271e539fc7dcbd801222f139c8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:20:25,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:20:25,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:20:25,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:20:25,875 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:20:25,875 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:20:25,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-08-30 03:20:27,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:20:27,285 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:20:27,285 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-08-30 03:20:27,298 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc62dc78d/ae3bfa62ed784e9f924b61342bd5bf22/FLAGfcd6d97a4 [2023-08-30 03:20:27,310 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc62dc78d/ae3bfa62ed784e9f924b61342bd5bf22 [2023-08-30 03:20:27,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:20:27,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:20:27,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:20:27,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:20:27,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:20:27,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a633d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27, skipping insertion in model container [2023-08-30 03:20:27,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:20:27,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:20:27,504 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i[992,1005] [2023-08-30 03:20:27,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:20:27,692 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:20:27,704 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i[992,1005] [2023-08-30 03:20:27,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:20:27,787 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:20:27,787 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:20:27,793 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:20:27,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27 WrapperNode [2023-08-30 03:20:27,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:20:27,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:20:27,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:20:27,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:20:27,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,852 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-30 03:20:27,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:20:27,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:20:27,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:20:27,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:20:27,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:20:27,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:20:27,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:20:27,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:20:27,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (1/1) ... [2023-08-30 03:20:27,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:20:27,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:20:27,940 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 03:20:27,978 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 03:20:28,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:20:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:20:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:20:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:20:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:20:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:20:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:20:28,014 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:20:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:20:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:20:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:20:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:20:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:20:28,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:20:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:20:28,017 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 03:20:28,214 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:20:28,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:20:28,454 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:20:28,461 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:20:28,461 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:20:28,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:28 BoogieIcfgContainer [2023-08-30 03:20:28,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:20:28,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:20:28,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:20:28,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:20:28,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:20:27" (1/3) ... [2023-08-30 03:20:28,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d6745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:20:28, skipping insertion in model container [2023-08-30 03:20:28,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:20:27" (2/3) ... [2023-08-30 03:20:28,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9d6745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:20:28, skipping insertion in model container [2023-08-30 03:20:28,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:28" (3/3) ... [2023-08-30 03:20:28,469 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc_pso.opt_rmo.oepc_rmo.opt_tso.oepc_tso.opt.i [2023-08-30 03:20:28,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:20:28,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:20:28,485 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:20:28,570 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:20:28,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2023-08-30 03:20:28,673 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-30 03:20:28,673 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:28,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 03:20:28,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2023-08-30 03:20:28,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:28,688 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:20:28,709 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:28,713 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:28,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 185 flow [2023-08-30 03:20:28,754 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-08-30 03:20:28,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:28,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-30 03:20:28,757 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-30 03:20:31,214 INFO L134 LiptonReduction]: Checked pairs total: 3100 [2023-08-30 03:20:31,214 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-30 03:20:31,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:20:31,243 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;@63673522, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:20:31,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:20:31,245 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:20:31,245 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:31,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:31,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:20:31,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:31,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:31,250 INFO L85 PathProgramCache]: Analyzing trace with hash 342, now seen corresponding path program 1 times [2023-08-30 03:20:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:31,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43031512] [2023-08-30 03:20:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:31,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:31,355 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 03:20:31,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:31,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43031512] [2023-08-30 03:20:31,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43031512] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:31,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:31,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:20:31,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847359989] [2023-08-30 03:20:31,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:31,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:20:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:31,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:20:31,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:20:31,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 188 [2023-08-30 03:20:31,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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 03:20:31,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:31,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 188 [2023-08-30 03:20:31,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:31,485 INFO L130 PetriNetUnfolder]: 272/458 cut-off events. [2023-08-30 03:20:31,486 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 03:20:31,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 458 events. 272/458 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2001 event pairs, 272 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 910. Up to 433 conditions per place. [2023-08-30 03:20:31,491 INFO L137 encePairwiseOnDemand]: 181/188 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-30 03:20:31,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-30 03:20:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:20:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:20:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 201 transitions. [2023-08-30 03:20:31,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5345744680851063 [2023-08-30 03:20:31,503 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 201 transitions. [2023-08-30 03:20:31,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 201 transitions. [2023-08-30 03:20:31,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:31,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 201 transitions. [2023-08-30 03:20:31,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.5) internal successors, (201), 2 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) [2023-08-30 03:20:31,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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 03:20:31,512 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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 03:20:31,514 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 201 transitions. [2023-08-30 03:20:31,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-30 03:20:31,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:31,517 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-30 03:20:31,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 03:20:31,521 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-30 03:20:31,521 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-30 03:20:31,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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 03:20:31,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:31,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:31,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:20:31,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:31,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:31,523 INFO L85 PathProgramCache]: Analyzing trace with hash -683135229, now seen corresponding path program 1 times [2023-08-30 03:20:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:31,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45921097] [2023-08-30 03:20:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:31,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:32,099 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 03:20:32,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:32,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45921097] [2023-08-30 03:20:32,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45921097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:32,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:32,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:32,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519285466] [2023-08-30 03:20:32,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:32,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:20:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:32,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:20:32,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:20:32,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 188 [2023-08-30 03:20:32,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 03:20:32,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:32,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 188 [2023-08-30 03:20:32,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:32,367 INFO L130 PetriNetUnfolder]: 293/466 cut-off events. [2023-08-30 03:20:32,368 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:20:32,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 466 events. 293/466 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1827 event pairs, 51 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 954. Up to 222 conditions per place. [2023-08-30 03:20:32,374 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2023-08-30 03:20:32,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 126 flow [2023-08-30 03:20:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:20:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:20:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2023-08-30 03:20:32,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42109929078014185 [2023-08-30 03:20:32,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2023-08-30 03:20:32,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2023-08-30 03:20:32,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:32,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2023-08-30 03:20:32,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 03:20:32,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 188.0) internal successors, (1316), 7 states have internal predecessors, (1316), 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 03:20:32,391 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 188.0) internal successors, (1316), 7 states have internal predecessors, (1316), 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 03:20:32,391 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 475 transitions. [2023-08-30 03:20:32,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 126 flow [2023-08-30 03:20:32,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:20:32,393 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 50 flow [2023-08-30 03:20:32,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2023-08-30 03:20:32,393 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-08-30 03:20:32,394 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 50 flow [2023-08-30 03:20:32,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 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 03:20:32,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:32,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:32,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:20:32,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:32,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:32,398 INFO L85 PathProgramCache]: Analyzing trace with hash -683135279, now seen corresponding path program 1 times [2023-08-30 03:20:32,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:32,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478236669] [2023-08-30 03:20:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:32,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:32,633 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 03:20:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:32,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478236669] [2023-08-30 03:20:32,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478236669] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:32,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:32,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89438264] [2023-08-30 03:20:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:32,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:32,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:32,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 188 [2023-08-30 03:20:32,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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 03:20:32,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:32,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 188 [2023-08-30 03:20:32,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:32,831 INFO L130 PetriNetUnfolder]: 953/1504 cut-off events. [2023-08-30 03:20:32,831 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2023-08-30 03:20:32,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3225 conditions, 1504 events. 953/1504 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 7243 event pairs, 265 based on Foata normal form. 106/1610 useless extension candidates. Maximal degree in co-relation 3221. Up to 634 conditions per place. [2023-08-30 03:20:32,837 INFO L137 encePairwiseOnDemand]: 180/188 looper letters, 26 selfloop transitions, 6 changer transitions 18/50 dead transitions. [2023-08-30 03:20:32,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 50 transitions, 228 flow [2023-08-30 03:20:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 447 transitions. [2023-08-30 03:20:32,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475531914893617 [2023-08-30 03:20:32,840 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 447 transitions. [2023-08-30 03:20:32,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 447 transitions. [2023-08-30 03:20:32,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:32,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 447 transitions. [2023-08-30 03:20:32,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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 03:20:32,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:32,843 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:32,843 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 50 flow. Second operand 5 states and 447 transitions. [2023-08-30 03:20:32,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 50 transitions, 228 flow [2023-08-30 03:20:32,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 03:20:32,847 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 98 flow [2023-08-30 03:20:32,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-08-30 03:20:32,848 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 03:20:32,848 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 98 flow [2023-08-30 03:20:32,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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 03:20:32,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:32,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:32,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:20:32,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:32,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash 297602452, now seen corresponding path program 1 times [2023-08-30 03:20:32,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:32,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005311261] [2023-08-30 03:20:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:32,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:32,983 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 03:20:32,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005311261] [2023-08-30 03:20:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005311261] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:32,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537542959] [2023-08-30 03:20:32,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:32,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:32,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:33,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 188 [2023-08-30 03:20:33,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 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 03:20:33,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:33,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 188 [2023-08-30 03:20:33,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:33,169 INFO L130 PetriNetUnfolder]: 663/1082 cut-off events. [2023-08-30 03:20:33,169 INFO L131 PetriNetUnfolder]: For 891/891 co-relation queries the response was YES. [2023-08-30 03:20:33,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3213 conditions, 1082 events. 663/1082 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4721 event pairs, 205 based on Foata normal form. 82/1164 useless extension candidates. Maximal degree in co-relation 3206. Up to 360 conditions per place. [2023-08-30 03:20:33,175 INFO L137 encePairwiseOnDemand]: 181/188 looper letters, 28 selfloop transitions, 6 changer transitions 26/60 dead transitions. [2023-08-30 03:20:33,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 60 transitions, 366 flow [2023-08-30 03:20:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:20:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:20:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 608 transitions. [2023-08-30 03:20:33,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46200607902735563 [2023-08-30 03:20:33,178 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 608 transitions. [2023-08-30 03:20:33,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 608 transitions. [2023-08-30 03:20:33,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:33,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 608 transitions. [2023-08-30 03:20:33,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 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 03:20:33,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 188.0) internal successors, (1504), 8 states have internal predecessors, (1504), 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 03:20:33,183 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 188.0) internal successors, (1504), 8 states have internal predecessors, (1504), 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 03:20:33,183 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 98 flow. Second operand 7 states and 608 transitions. [2023-08-30 03:20:33,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 60 transitions, 366 flow [2023-08-30 03:20:33,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 60 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:20:33,188 INFO L231 Difference]: Finished difference. Result has 43 places, 24 transitions, 132 flow [2023-08-30 03:20:33,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2023-08-30 03:20:33,189 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-30 03:20:33,189 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 24 transitions, 132 flow [2023-08-30 03:20:33,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 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 03:20:33,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:33,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:33,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:20:33,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:33,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1181252611, now seen corresponding path program 1 times [2023-08-30 03:20:33,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:33,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766518107] [2023-08-30 03:20:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:33,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:33,327 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 03:20:33,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:33,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766518107] [2023-08-30 03:20:33,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766518107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:33,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:33,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:20:33,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594008630] [2023-08-30 03:20:33,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:33,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:20:33,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:33,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:20:33,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:20:33,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 188 [2023-08-30 03:20:33,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 24 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 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) [2023-08-30 03:20:33,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:33,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 188 [2023-08-30 03:20:33,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:33,394 INFO L130 PetriNetUnfolder]: 239/467 cut-off events. [2023-08-30 03:20:33,395 INFO L131 PetriNetUnfolder]: For 526/540 co-relation queries the response was YES. [2023-08-30 03:20:33,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 467 events. 239/467 cut-off events. For 526/540 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2208 event pairs, 69 based on Foata normal form. 27/475 useless extension candidates. Maximal degree in co-relation 1362. Up to 356 conditions per place. [2023-08-30 03:20:33,398 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 25 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-30 03:20:33,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 234 flow [2023-08-30 03:20:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:20:33,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:20:33,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-30 03:20:33,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49822695035460995 [2023-08-30 03:20:33,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-30 03:20:33,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-30 03:20:33,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:33,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-30 03:20:33,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 03:20:33,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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 03:20:33,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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 03:20:33,403 INFO L175 Difference]: Start difference. First operand has 43 places, 24 transitions, 132 flow. Second operand 3 states and 281 transitions. [2023-08-30 03:20:33,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 234 flow [2023-08-30 03:20:33,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 223 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:33,406 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 147 flow [2023-08-30 03:20:33,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2023-08-30 03:20:33,407 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-30 03:20:33,407 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 147 flow [2023-08-30 03:20:33,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 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) [2023-08-30 03:20:33,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:33,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:33,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:20:33,408 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:33,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash -402415203, now seen corresponding path program 1 times [2023-08-30 03:20:33,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:33,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461981928] [2023-08-30 03:20:33,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:33,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:33,533 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 03:20:33,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:33,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461981928] [2023-08-30 03:20:33,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461981928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:33,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:33,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:20:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463691382] [2023-08-30 03:20:33,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:33,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:20:33,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:33,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:20:33,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:20:33,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 188 [2023-08-30 03:20:33,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 03:20:33,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:33,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 188 [2023-08-30 03:20:33,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:33,600 INFO L130 PetriNetUnfolder]: 138/301 cut-off events. [2023-08-30 03:20:33,601 INFO L131 PetriNetUnfolder]: For 238/263 co-relation queries the response was YES. [2023-08-30 03:20:33,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 301 events. 138/301 cut-off events. For 238/263 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1342 event pairs, 29 based on Foata normal form. 51/337 useless extension candidates. Maximal degree in co-relation 1033. Up to 129 conditions per place. [2023-08-30 03:20:33,603 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 27 selfloop transitions, 7 changer transitions 4/45 dead transitions. [2023-08-30 03:20:33,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 299 flow [2023-08-30 03:20:33,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:20:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:20:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2023-08-30 03:20:33,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973404255319149 [2023-08-30 03:20:33,605 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2023-08-30 03:20:33,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2023-08-30 03:20:33,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:33,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2023-08-30 03:20:33,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 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 03:20:33,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 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 03:20:33,608 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 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 03:20:33,608 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 147 flow. Second operand 4 states and 374 transitions. [2023-08-30 03:20:33,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 299 flow [2023-08-30 03:20:33,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 283 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:33,611 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 175 flow [2023-08-30 03:20:33,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-08-30 03:20:33,612 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-30 03:20:33,612 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 175 flow [2023-08-30 03:20:33,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 03:20:33,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:33,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:20:33,613 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:33,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1630249970, now seen corresponding path program 1 times [2023-08-30 03:20:33,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:33,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440373421] [2023-08-30 03:20:33,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:33,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:33,730 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 03:20:33,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:33,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440373421] [2023-08-30 03:20:33,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440373421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:33,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:33,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:33,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871077153] [2023-08-30 03:20:33,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:33,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:33,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:33,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:33,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:33,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 188 [2023-08-30 03:20:33,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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 03:20:33,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:33,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 188 [2023-08-30 03:20:33,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:33,860 INFO L130 PetriNetUnfolder]: 220/513 cut-off events. [2023-08-30 03:20:33,861 INFO L131 PetriNetUnfolder]: For 808/844 co-relation queries the response was YES. [2023-08-30 03:20:33,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 513 events. 220/513 cut-off events. For 808/844 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2767 event pairs, 51 based on Foata normal form. 16/522 useless extension candidates. Maximal degree in co-relation 1984. Up to 242 conditions per place. [2023-08-30 03:20:33,864 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 38 selfloop transitions, 4 changer transitions 18/65 dead transitions. [2023-08-30 03:20:33,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 65 transitions, 491 flow [2023-08-30 03:20:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2023-08-30 03:20:33,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48404255319148937 [2023-08-30 03:20:33,866 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 455 transitions. [2023-08-30 03:20:33,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 455 transitions. [2023-08-30 03:20:33,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:33,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 455 transitions. [2023-08-30 03:20:33,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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 03:20:33,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:33,870 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:33,870 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 175 flow. Second operand 5 states and 455 transitions. [2023-08-30 03:20:33,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 65 transitions, 491 flow [2023-08-30 03:20:33,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 65 transitions, 453 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-30 03:20:33,874 INFO L231 Difference]: Finished difference. Result has 46 places, 30 transitions, 177 flow [2023-08-30 03:20:33,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=46, PETRI_TRANSITIONS=30} [2023-08-30 03:20:33,874 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-08-30 03:20:33,874 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 30 transitions, 177 flow [2023-08-30 03:20:33,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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 03:20:33,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:33,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:33,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:20:33,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:33,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash 826135756, now seen corresponding path program 2 times [2023-08-30 03:20:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958930873] [2023-08-30 03:20:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:33,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:20:34,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:34,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958930873] [2023-08-30 03:20:34,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958930873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:34,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:34,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:34,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836528348] [2023-08-30 03:20:34,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:34,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:34,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:34,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:34,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:34,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 188 [2023-08-30 03:20:34,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 30 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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 03:20:34,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:34,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 188 [2023-08-30 03:20:34,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:34,153 INFO L130 PetriNetUnfolder]: 233/483 cut-off events. [2023-08-30 03:20:34,153 INFO L131 PetriNetUnfolder]: For 741/741 co-relation queries the response was YES. [2023-08-30 03:20:34,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 483 events. 233/483 cut-off events. For 741/741 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2250 event pairs, 31 based on Foata normal form. 8/491 useless extension candidates. Maximal degree in co-relation 1866. Up to 201 conditions per place. [2023-08-30 03:20:34,156 INFO L137 encePairwiseOnDemand]: 181/188 looper letters, 36 selfloop transitions, 5 changer transitions 26/67 dead transitions. [2023-08-30 03:20:34,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 67 transitions, 506 flow [2023-08-30 03:20:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:34,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 441 transitions. [2023-08-30 03:20:34,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46914893617021275 [2023-08-30 03:20:34,159 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 441 transitions. [2023-08-30 03:20:34,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 441 transitions. [2023-08-30 03:20:34,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:34,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 441 transitions. [2023-08-30 03:20:34,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 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 03:20:34,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:34,163 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:34,163 INFO L175 Difference]: Start difference. First operand has 46 places, 30 transitions, 177 flow. Second operand 5 states and 441 transitions. [2023-08-30 03:20:34,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 67 transitions, 506 flow [2023-08-30 03:20:34,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 67 transitions, 493 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:34,168 INFO L231 Difference]: Finished difference. Result has 47 places, 26 transitions, 159 flow [2023-08-30 03:20:34,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=159, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2023-08-30 03:20:34,169 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2023-08-30 03:20:34,169 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 159 flow [2023-08-30 03:20:34,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 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 03:20:34,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:34,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:34,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:20:34,170 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:34,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1920014828, now seen corresponding path program 3 times [2023-08-30 03:20:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:34,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874165964] [2023-08-30 03:20:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:34,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:34,306 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 03:20:34,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:34,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874165964] [2023-08-30 03:20:34,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874165964] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:34,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:34,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125597046] [2023-08-30 03:20:34,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:34,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:34,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:34,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:34,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 188 [2023-08-30 03:20:34,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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 03:20:34,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:34,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 188 [2023-08-30 03:20:34,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:34,356 INFO L130 PetriNetUnfolder]: 32/87 cut-off events. [2023-08-30 03:20:34,357 INFO L131 PetriNetUnfolder]: For 201/231 co-relation queries the response was YES. [2023-08-30 03:20:34,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 87 events. 32/87 cut-off events. For 201/231 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 253 event pairs, 6 based on Foata normal form. 33/117 useless extension candidates. Maximal degree in co-relation 343. Up to 27 conditions per place. [2023-08-30 03:20:34,358 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 17 selfloop transitions, 10 changer transitions 1/33 dead transitions. [2023-08-30 03:20:34,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 33 transitions, 260 flow [2023-08-30 03:20:34,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:20:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:20:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 454 transitions. [2023-08-30 03:20:34,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4829787234042553 [2023-08-30 03:20:34,368 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 454 transitions. [2023-08-30 03:20:34,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 454 transitions. [2023-08-30 03:20:34,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:34,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 454 transitions. [2023-08-30 03:20:34,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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 03:20:34,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:34,371 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 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 03:20:34,372 INFO L175 Difference]: Start difference. First operand has 47 places, 26 transitions, 159 flow. Second operand 5 states and 454 transitions. [2023-08-30 03:20:34,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 33 transitions, 260 flow [2023-08-30 03:20:34,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 209 flow, removed 8 selfloop flow, removed 9 redundant places. [2023-08-30 03:20:34,374 INFO L231 Difference]: Finished difference. Result has 42 places, 26 transitions, 151 flow [2023-08-30 03:20:34,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=42, PETRI_TRANSITIONS=26} [2023-08-30 03:20:34,375 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2023-08-30 03:20:34,375 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 151 flow [2023-08-30 03:20:34,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 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 03:20:34,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:34,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:34,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:20:34,376 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:34,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:34,376 INFO L85 PathProgramCache]: Analyzing trace with hash -129814626, now seen corresponding path program 1 times [2023-08-30 03:20:34,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:34,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451498227] [2023-08-30 03:20:34,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:34,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:34,507 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 03:20:34,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:34,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451498227] [2023-08-30 03:20:34,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451498227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:34,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:34,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:34,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158989472] [2023-08-30 03:20:34,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:34,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:34,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:34,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:34,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:34,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 188 [2023-08-30 03:20:34,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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 03:20:34,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:34,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 188 [2023-08-30 03:20:34,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:34,592 INFO L130 PetriNetUnfolder]: 49/136 cut-off events. [2023-08-30 03:20:34,593 INFO L131 PetriNetUnfolder]: For 313/313 co-relation queries the response was YES. [2023-08-30 03:20:34,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 136 events. 49/136 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 474 event pairs, 14 based on Foata normal form. 1/137 useless extension candidates. Maximal degree in co-relation 531. Up to 80 conditions per place. [2023-08-30 03:20:34,594 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 26 selfloop transitions, 2 changer transitions 17/48 dead transitions. [2023-08-30 03:20:34,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 398 flow [2023-08-30 03:20:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:20:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:20:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 527 transitions. [2023-08-30 03:20:34,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4671985815602837 [2023-08-30 03:20:34,597 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 527 transitions. [2023-08-30 03:20:34,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 527 transitions. [2023-08-30 03:20:34,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:34,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 527 transitions. [2023-08-30 03:20:34,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 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 03:20:34,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 188.0) internal successors, (1316), 7 states have internal predecessors, (1316), 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 03:20:34,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 188.0) internal successors, (1316), 7 states have internal predecessors, (1316), 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 03:20:34,604 INFO L175 Difference]: Start difference. First operand has 42 places, 26 transitions, 151 flow. Second operand 6 states and 527 transitions. [2023-08-30 03:20:34,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 398 flow [2023-08-30 03:20:34,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 334 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-08-30 03:20:34,608 INFO L231 Difference]: Finished difference. Result has 46 places, 26 transitions, 136 flow [2023-08-30 03:20:34,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=46, PETRI_TRANSITIONS=26} [2023-08-30 03:20:34,609 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-08-30 03:20:34,609 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 26 transitions, 136 flow [2023-08-30 03:20:34,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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 03:20:34,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:20:34,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:34,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:20:34,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:20:34,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:20:34,611 INFO L85 PathProgramCache]: Analyzing trace with hash 515272976, now seen corresponding path program 2 times [2023-08-30 03:20:34,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:20:34,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505631487] [2023-08-30 03:20:34,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:20:34,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:20:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:20:34,748 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 03:20:34,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:20:34,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505631487] [2023-08-30 03:20:34,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505631487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:20:34,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:20:34,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:20:34,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306679314] [2023-08-30 03:20:34,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:20:34,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:20:34,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:20:34,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:20:34,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:20:34,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 188 [2023-08-30 03:20:34,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 26 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 80.6) internal successors, (403), 5 states have internal predecessors, (403), 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 03:20:34,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:20:34,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 188 [2023-08-30 03:20:34,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:20:34,853 INFO L130 PetriNetUnfolder]: 54/124 cut-off events. [2023-08-30 03:20:34,853 INFO L131 PetriNetUnfolder]: For 183/183 co-relation queries the response was YES. [2023-08-30 03:20:34,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 124 events. 54/124 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 373 event pairs, 7 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 480. Up to 84 conditions per place. [2023-08-30 03:20:34,854 INFO L137 encePairwiseOnDemand]: 181/188 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-30 03:20:34,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 328 flow [2023-08-30 03:20:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:20:34,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:20:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2023-08-30 03:20:34,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43882978723404253 [2023-08-30 03:20:34,856 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2023-08-30 03:20:34,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2023-08-30 03:20:34,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:20:34,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2023-08-30 03:20:34,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 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 03:20:34,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 188.0) internal successors, (1316), 7 states have internal predecessors, (1316), 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 03:20:34,860 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 188.0) internal successors, (1316), 7 states have internal predecessors, (1316), 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 03:20:34,861 INFO L175 Difference]: Start difference. First operand has 46 places, 26 transitions, 136 flow. Second operand 6 states and 495 transitions. [2023-08-30 03:20:34,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 328 flow [2023-08-30 03:20:34,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 314 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 03:20:34,862 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-30 03:20:34,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-08-30 03:20:34,863 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2023-08-30 03:20:34,863 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-30 03:20:34,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.6) internal successors, (403), 5 states have internal predecessors, (403), 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 03:20:34,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:20:34,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:20:34,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:20:34,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:20:34,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:20:34,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:20:34,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:20:34,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:20:34,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:20:34,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:20:34,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:20:34,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:20:34,868 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2023-08-30 03:20:34,871 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:20:34,871 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:20:34,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:20:34 BasicIcfg [2023-08-30 03:20:34,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:20:34,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:20:34,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:20:34,875 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:20:34,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:20:28" (3/4) ... [2023-08-30 03:20:34,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:20:34,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:20:34,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:20:34,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:20:34,886 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:20:34,886 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:20:34,886 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:20:34,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:20:34,912 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:20:34,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:20:34,913 INFO L158 Benchmark]: Toolchain (without parser) took 7598.69ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 45.6MB in the beginning and 95.8MB in the end (delta: -50.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-08-30 03:20:34,913 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 29.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:20:34,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.94ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 42.0MB in the end (delta: 3.4MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-08-30 03:20:34,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.20ms. Allocated memory is still 69.2MB. Free memory was 42.0MB in the beginning and 39.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:20:34,914 INFO L158 Benchmark]: Boogie Preprocessor took 49.20ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 38.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:20:34,914 INFO L158 Benchmark]: RCFGBuilder took 559.45ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 42.0MB in the end (delta: -3.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-08-30 03:20:34,914 INFO L158 Benchmark]: TraceAbstraction took 6409.49ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 41.4MB in the beginning and 99.0MB in the end (delta: -57.6MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-08-30 03:20:34,914 INFO L158 Benchmark]: Witness Printer took 37.82ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:20:34,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 52.4MB. Free memory is still 29.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.94ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 42.0MB in the end (delta: 3.4MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.20ms. Allocated memory is still 69.2MB. Free memory was 42.0MB in the beginning and 39.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.20ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 38.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.45ms. Allocated memory is still 69.2MB. Free memory was 38.4MB in the beginning and 42.0MB in the end (delta: -3.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6409.49ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 41.4MB in the beginning and 99.0MB in the end (delta: -57.6MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Witness Printer took 37.82ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 95.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 96 PlacesBefore, 35 PlacesAfterwards, 88 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 3100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1671, independent: 1589, independent conditional: 0, independent unconditional: 1589, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 824, independent: 797, independent conditional: 0, independent unconditional: 797, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1671, independent: 792, independent conditional: 0, independent unconditional: 792, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 824, unknown conditional: 0, unknown unconditional: 824] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: -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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 782]: 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 7 procedures, 118 locations, 11 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: 6.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 405 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 302 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 981 IncrementalHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 35 mSDtfsCounter, 981 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 1.6s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:20:34,934 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