./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 20:51:10,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 20:51:10,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 20:51:10,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 20:51:10,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 20:51:10,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 20:51:10,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 20:51:10,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 20:51:10,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 20:51:10,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 20:51:10,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 20:51:10,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 20:51:10,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 20:51:10,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 20:51:10,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 20:51:10,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 20:51:10,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 20:51:10,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 20:51:10,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 20:51:10,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 20:51:10,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 20:51:10,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 20:51:10,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 20:51:10,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 20:51:10,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 20:51:10,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 20:51:10,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 20:51:10,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 20:51:10,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 20:51:10,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 20:51:10,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 20:51:10,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 20:51:10,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 20:51:10,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 20:51:10,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 20:51:10,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 20:51:10,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 20:51:10,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 20:51:10,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 20:51:10,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 20:51:10,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 20:51:10,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 20:51:10,793 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 20:51:10,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 20:51:10,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 20:51:10,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 20:51:10,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 20:51:10,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 20:51:10,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 20:51:10,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 20:51:10,795 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 20:51:10,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 20:51:10,796 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 20:51:10,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 20:51:10,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 20:51:10,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 20:51:10,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 20:51:10,797 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 20:51:10,797 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 20:51:10,797 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 20:51:10,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 20:51:10,797 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 20:51:10,797 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 20:51:10,798 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 20:51:10,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 20:51:10,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 20:51:10,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 20:51:10,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:51:10,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 20:51:10,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 20:51:10,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 20:51:10,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 20:51:10,799 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 20:51:10,799 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 20:51:10,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 20:51:10,800 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 20:51:10,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 20:51:11,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 20:51:11,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 20:51:11,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 20:51:11,096 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 20:51:11,097 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 20:51:11,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2023-08-29 20:51:12,224 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 20:51:12,506 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 20:51:12,507 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2023-08-29 20:51:12,525 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989a1e82c/c16e63eb9a8648a69f270c78998dcc15/FLAGb5f821ecf [2023-08-29 20:51:12,540 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/989a1e82c/c16e63eb9a8648a69f270c78998dcc15 [2023-08-29 20:51:12,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 20:51:12,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 20:51:12,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 20:51:12,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 20:51:12,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 20:51:12,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:51:12" (1/1) ... [2023-08-29 20:51:12,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7895d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:12, skipping insertion in model container [2023-08-29 20:51:12,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:51:12" (1/1) ... [2023-08-29 20:51:12,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 20:51:12,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:51:12,771 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/safe032_tso.i[945,958] [2023-08-29 20:51:12,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:51:12,965 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 20:51:12,979 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/safe032_tso.i[945,958] [2023-08-29 20:51:13,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:51:13,056 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:51:13,056 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:51:13,062 INFO L208 MainTranslator]: Completed translation [2023-08-29 20:51:13,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13 WrapperNode [2023-08-29 20:51:13,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 20:51:13,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 20:51:13,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 20:51:13,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 20:51:13,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,123 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-29 20:51:13,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 20:51:13,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 20:51:13,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 20:51:13,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 20:51:13,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,166 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 20:51:13,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 20:51:13,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 20:51:13,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 20:51:13,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (1/1) ... [2023-08-29 20:51:13,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:51:13,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 20:51:13,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 20:51:13,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 20:51:13,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 20:51:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 20:51:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 20:51:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 20:51:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 20:51:13,246 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-29 20:51:13,246 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-29 20:51:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-29 20:51:13,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-29 20:51:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-29 20:51:13,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-29 20:51:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 20:51:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 20:51:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 20:51:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 20:51:13,249 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 20:51:13,391 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 20:51:13,406 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 20:51:13,625 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 20:51:13,631 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 20:51:13,631 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 20:51:13,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:51:13 BoogieIcfgContainer [2023-08-29 20:51:13,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 20:51:13,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 20:51:13,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 20:51:13,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 20:51:13,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:51:12" (1/3) ... [2023-08-29 20:51:13,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1960ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:51:13, skipping insertion in model container [2023-08-29 20:51:13,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:13" (2/3) ... [2023-08-29 20:51:13,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1960ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:51:13, skipping insertion in model container [2023-08-29 20:51:13,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:51:13" (3/3) ... [2023-08-29 20:51:13,640 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2023-08-29 20:51:13,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 20:51:13,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 20:51:13,655 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 20:51:13,715 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 20:51:13,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 203 flow [2023-08-29 20:51:13,782 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2023-08-29 20:51:13,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:13,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 2/91 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. 0/81 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-29 20:51:13,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 203 flow [2023-08-29 20:51:13,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 87 transitions, 183 flow [2023-08-29 20:51:13,793 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 20:51:13,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 87 transitions, 183 flow [2023-08-29 20:51:13,808 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 87 transitions, 183 flow [2023-08-29 20:51:13,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 87 transitions, 183 flow [2023-08-29 20:51:13,837 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2023-08-29 20:51:13,838 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:13,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-29 20:51:13,839 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-29 20:51:16,051 INFO L134 LiptonReduction]: Checked pairs total: 2934 [2023-08-29 20:51:16,051 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-08-29 20:51:16,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 20:51:16,069 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;@ae09e97, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 20:51:16,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 20:51:16,070 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 20:51:16,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:16,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:16,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 20:51:16,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:51:16,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:16,076 INFO L85 PathProgramCache]: Analyzing trace with hash 332, now seen corresponding path program 1 times [2023-08-29 20:51:16,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:16,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411689756] [2023-08-29 20:51:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:16,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:16,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411689756] [2023-08-29 20:51:16,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411689756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:16,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:16,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 20:51:16,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390172289] [2023-08-29 20:51:16,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:16,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 20:51:16,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:16,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 20:51:16,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 20:51:16,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 181 [2023-08-29 20:51:16,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:16,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:16,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 181 [2023-08-29 20:51:16,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:16,291 INFO L130 PetriNetUnfolder]: 272/454 cut-off events. [2023-08-29 20:51:16,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:16,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 454 events. 272/454 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1976 event pairs, 272 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 906. Up to 433 conditions per place. [2023-08-29 20:51:16,297 INFO L137 encePairwiseOnDemand]: 174/181 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-29 20:51:16,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-29 20:51:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 20:51:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 20:51:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-29 20:51:16,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5497237569060773 [2023-08-29 20:51:16,309 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-29 20:51:16,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-29 20:51:16,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:16,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-29 20:51:16,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:16,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:16,319 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:16,321 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 199 transitions. [2023-08-29 20:51:16,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-29 20:51:16,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 20:51:16,324 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-29 20:51:16,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, 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} [2023-08-29 20:51:16,329 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-29 20:51:16,329 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-29 20:51:16,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:16,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:16,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:16,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 20:51:16,330 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)] === [2023-08-29 20:51:16,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:16,331 INFO L85 PathProgramCache]: Analyzing trace with hash 547735247, now seen corresponding path program 1 times [2023-08-29 20:51:16,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:16,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897436105] [2023-08-29 20:51:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:17,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:17,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897436105] [2023-08-29 20:51:17,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897436105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:17,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:17,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:51:17,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388212495] [2023-08-29 20:51:17,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:17,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 20:51:17,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 20:51:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 20:51:17,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 181 [2023-08-29 20:51:17,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 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) [2023-08-29 20:51:17,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:17,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 181 [2023-08-29 20:51:17,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:17,266 INFO L130 PetriNetUnfolder]: 457/753 cut-off events. [2023-08-29 20:51:17,267 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:17,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 753 events. 457/753 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3599 event pairs, 134 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 1525. Up to 267 conditions per place. [2023-08-29 20:51:17,272 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 36 selfloop transitions, 5 changer transitions 0/43 dead transitions. [2023-08-29 20:51:17,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 43 transitions, 178 flow [2023-08-29 20:51:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 20:51:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 20:51:17,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2023-08-29 20:51:17,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4429097605893186 [2023-08-29 20:51:17,276 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2023-08-29 20:51:17,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2023-08-29 20:51:17,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:17,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2023-08-29 20:51:17,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,282 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 481 transitions. [2023-08-29 20:51:17,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 43 transitions, 178 flow [2023-08-29 20:51:17,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 43 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 20:51:17,284 INFO L231 Difference]: Finished difference. Result has 35 places, 21 transitions, 70 flow [2023-08-29 20:51:17,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=70, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2023-08-29 20:51:17,284 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-29 20:51:17,285 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 21 transitions, 70 flow [2023-08-29 20:51:17,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 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) [2023-08-29 20:51:17,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:17,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:17,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 20:51:17,286 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)] === [2023-08-29 20:51:17,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:17,286 INFO L85 PathProgramCache]: Analyzing trace with hash 547735207, now seen corresponding path program 1 times [2023-08-29 20:51:17,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:17,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982930366] [2023-08-29 20:51:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:17,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:17,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:17,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982930366] [2023-08-29 20:51:17,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982930366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:17,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:17,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:51:17,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202045926] [2023-08-29 20:51:17,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:17,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:51:17,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:17,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:51:17,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:51:17,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-29 20:51:17,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 21 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:17,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-29 20:51:17,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:17,690 INFO L130 PetriNetUnfolder]: 1350/2088 cut-off events. [2023-08-29 20:51:17,690 INFO L131 PetriNetUnfolder]: For 527/527 co-relation queries the response was YES. [2023-08-29 20:51:17,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4690 conditions, 2088 events. 1350/2088 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 10270 event pairs, 484 based on Foata normal form. 131/2219 useless extension candidates. Maximal degree in co-relation 4683. Up to 1092 conditions per place. [2023-08-29 20:51:17,700 INFO L137 encePairwiseOnDemand]: 171/181 looper letters, 41 selfloop transitions, 15 changer transitions 4/60 dead transitions. [2023-08-29 20:51:17,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 60 transitions, 308 flow [2023-08-29 20:51:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2023-08-29 20:51:17,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4895027624309392 [2023-08-29 20:51:17,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2023-08-29 20:51:17,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2023-08-29 20:51:17,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:17,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2023-08-29 20:51:17,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,706 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,706 INFO L175 Difference]: Start difference. First operand has 35 places, 21 transitions, 70 flow. Second operand 5 states and 443 transitions. [2023-08-29 20:51:17,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 60 transitions, 308 flow [2023-08-29 20:51:17,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 60 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 20:51:17,709 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 204 flow [2023-08-29 20:51:17,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2023-08-29 20:51:17,710 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-29 20:51:17,711 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 204 flow [2023-08-29 20:51:17,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:17,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 20:51:17,712 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)] === [2023-08-29 20:51:17,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -200097405, now seen corresponding path program 1 times [2023-08-29 20:51:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:17,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152069743] [2023-08-29 20:51:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:17,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:17,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152069743] [2023-08-29 20:51:17,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152069743] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:17,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:17,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:51:17,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322194038] [2023-08-29 20:51:17,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:17,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:51:17,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:51:17,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:51:17,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-29 20:51:17,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:17,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:17,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-29 20:51:17,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:18,154 INFO L130 PetriNetUnfolder]: 1389/2178 cut-off events. [2023-08-29 20:51:18,154 INFO L131 PetriNetUnfolder]: For 3219/3219 co-relation queries the response was YES. [2023-08-29 20:51:18,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7559 conditions, 2178 events. 1389/2178 cut-off events. For 3219/3219 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 10948 event pairs, 196 based on Foata normal form. 59/2237 useless extension candidates. Maximal degree in co-relation 7549. Up to 1046 conditions per place. [2023-08-29 20:51:18,169 INFO L137 encePairwiseOnDemand]: 171/181 looper letters, 45 selfloop transitions, 19 changer transitions 18/82 dead transitions. [2023-08-29 20:51:18,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 602 flow [2023-08-29 20:51:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:51:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:51:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2023-08-29 20:51:18,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48145224940805054 [2023-08-29 20:51:18,171 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2023-08-29 20:51:18,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2023-08-29 20:51:18,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:18,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2023-08-29 20:51:18,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,176 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,176 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 204 flow. Second operand 7 states and 610 transitions. [2023-08-29 20:51:18,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 602 flow [2023-08-29 20:51:18,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 82 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 20:51:18,184 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 338 flow [2023-08-29 20:51:18,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2023-08-29 20:51:18,185 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2023-08-29 20:51:18,185 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 338 flow [2023-08-29 20:51:18,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.0) internal successors, (395), 5 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:18,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:18,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 20:51:18,186 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)] === [2023-08-29 20:51:18,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:18,187 INFO L85 PathProgramCache]: Analyzing trace with hash -200099327, now seen corresponding path program 1 times [2023-08-29 20:51:18,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:18,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992262018] [2023-08-29 20:51:18,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:18,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:18,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:18,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992262018] [2023-08-29 20:51:18,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992262018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:18,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:18,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:51:18,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105724522] [2023-08-29 20:51:18,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:18,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:51:18,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:18,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:51:18,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:51:18,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-29 20:51:18,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:18,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-29 20:51:18,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:18,557 INFO L130 PetriNetUnfolder]: 1266/2095 cut-off events. [2023-08-29 20:51:18,558 INFO L131 PetriNetUnfolder]: For 8141/8203 co-relation queries the response was YES. [2023-08-29 20:51:18,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8709 conditions, 2095 events. 1266/2095 cut-off events. For 8141/8203 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 11503 event pairs, 437 based on Foata normal form. 111/2180 useless extension candidates. Maximal degree in co-relation 8693. Up to 1251 conditions per place. [2023-08-29 20:51:18,576 INFO L137 encePairwiseOnDemand]: 175/181 looper letters, 55 selfloop transitions, 15 changer transitions 5/83 dead transitions. [2023-08-29 20:51:18,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 83 transitions, 824 flow [2023-08-29 20:51:18,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2023-08-29 20:51:18,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512707182320442 [2023-08-29 20:51:18,578 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2023-08-29 20:51:18,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2023-08-29 20:51:18,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:18,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2023-08-29 20:51:18,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,582 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,582 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 338 flow. Second operand 5 states and 464 transitions. [2023-08-29 20:51:18,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 83 transitions, 824 flow [2023-08-29 20:51:18,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 83 transitions, 775 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-29 20:51:18,600 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 510 flow [2023-08-29 20:51:18,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-29 20:51:18,601 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2023-08-29 20:51:18,601 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 510 flow [2023-08-29 20:51:18,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:18,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:18,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 20:51:18,602 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)] === [2023-08-29 20:51:18,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1908073819, now seen corresponding path program 1 times [2023-08-29 20:51:18,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:18,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467382730] [2023-08-29 20:51:18,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:18,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:18,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:18,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:18,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467382730] [2023-08-29 20:51:18,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467382730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:18,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:18,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:51:18,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466415988] [2023-08-29 20:51:18,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:18,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:51:18,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:18,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:51:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:51:18,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 181 [2023-08-29 20:51:18,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 510 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:18,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:18,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 181 [2023-08-29 20:51:18,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:18,995 INFO L130 PetriNetUnfolder]: 1227/2160 cut-off events. [2023-08-29 20:51:18,996 INFO L131 PetriNetUnfolder]: For 10676/10703 co-relation queries the response was YES. [2023-08-29 20:51:19,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9298 conditions, 2160 events. 1227/2160 cut-off events. For 10676/10703 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 13065 event pairs, 387 based on Foata normal form. 73/2226 useless extension candidates. Maximal degree in co-relation 9279. Up to 966 conditions per place. [2023-08-29 20:51:19,013 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 51 selfloop transitions, 12 changer transitions 15/89 dead transitions. [2023-08-29 20:51:19,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 89 transitions, 970 flow [2023-08-29 20:51:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 463 transitions. [2023-08-29 20:51:19,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5116022099447514 [2023-08-29 20:51:19,016 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 463 transitions. [2023-08-29 20:51:19,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 463 transitions. [2023-08-29 20:51:19,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:19,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 463 transitions. [2023-08-29 20:51:19,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,019 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,019 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 510 flow. Second operand 5 states and 463 transitions. [2023-08-29 20:51:19,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 89 transitions, 970 flow [2023-08-29 20:51:19,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 89 transitions, 962 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-29 20:51:19,039 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 565 flow [2023-08-29 20:51:19,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=565, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2023-08-29 20:51:19,040 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 29 predicate places. [2023-08-29 20:51:19,040 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 565 flow [2023-08-29 20:51:19,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:19,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:19,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 20:51:19,041 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:51:19,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash 193381878, now seen corresponding path program 1 times [2023-08-29 20:51:19,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:19,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846464893] [2023-08-29 20:51:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:19,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:19,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:19,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846464893] [2023-08-29 20:51:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846464893] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:19,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:19,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:51:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145799] [2023-08-29 20:51:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:19,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:51:19,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:51:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:51:19,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 181 [2023-08-29 20:51:19,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 565 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:19,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 181 [2023-08-29 20:51:19,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:19,507 INFO L130 PetriNetUnfolder]: 788/1444 cut-off events. [2023-08-29 20:51:19,508 INFO L131 PetriNetUnfolder]: For 10523/10547 co-relation queries the response was YES. [2023-08-29 20:51:19,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6240 conditions, 1444 events. 788/1444 cut-off events. For 10523/10547 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8483 event pairs, 299 based on Foata normal form. 138/1568 useless extension candidates. Maximal degree in co-relation 6217. Up to 1091 conditions per place. [2023-08-29 20:51:19,520 INFO L137 encePairwiseOnDemand]: 177/181 looper letters, 32 selfloop transitions, 4 changer transitions 7/56 dead transitions. [2023-08-29 20:51:19,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 56 transitions, 603 flow [2023-08-29 20:51:19,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 387 transitions. [2023-08-29 20:51:19,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276243093922652 [2023-08-29 20:51:19,523 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 387 transitions. [2023-08-29 20:51:19,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 387 transitions. [2023-08-29 20:51:19,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:19,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 387 transitions. [2023-08-29 20:51:19,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.4) internal successors, (387), 5 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,526 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,526 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 565 flow. Second operand 5 states and 387 transitions. [2023-08-29 20:51:19,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 56 transitions, 603 flow [2023-08-29 20:51:19,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 567 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-29 20:51:19,575 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 358 flow [2023-08-29 20:51:19,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2023-08-29 20:51:19,576 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 24 predicate places. [2023-08-29 20:51:19,576 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 358 flow [2023-08-29 20:51:19,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:19,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:19,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 20:51:19,577 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)] === [2023-08-29 20:51:19,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash 213016732, now seen corresponding path program 1 times [2023-08-29 20:51:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285927149] [2023-08-29 20:51:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:19,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:19,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:19,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285927149] [2023-08-29 20:51:19,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285927149] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:19,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:19,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:51:19,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915438150] [2023-08-29 20:51:19,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:19,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:51:19,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:19,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:51:19,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:51:19,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181 [2023-08-29 20:51:19,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:19,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181 [2023-08-29 20:51:19,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:19,961 INFO L130 PetriNetUnfolder]: 1105/1817 cut-off events. [2023-08-29 20:51:19,962 INFO L131 PetriNetUnfolder]: For 8167/8167 co-relation queries the response was YES. [2023-08-29 20:51:19,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7791 conditions, 1817 events. 1105/1817 cut-off events. For 8167/8167 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9459 event pairs, 167 based on Foata normal form. 78/1895 useless extension candidates. Maximal degree in co-relation 7773. Up to 589 conditions per place. [2023-08-29 20:51:19,975 INFO L137 encePairwiseOnDemand]: 172/181 looper letters, 38 selfloop transitions, 13 changer transitions 36/87 dead transitions. [2023-08-29 20:51:19,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 87 transitions, 850 flow [2023-08-29 20:51:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:51:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:51:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 604 transitions. [2023-08-29 20:51:19,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47671665351223363 [2023-08-29 20:51:19,977 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 604 transitions. [2023-08-29 20:51:19,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 604 transitions. [2023-08-29 20:51:19,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:19,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 604 transitions. [2023-08-29 20:51:19,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.28571428571429) internal successors, (604), 7 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,982 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:19,982 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 358 flow. Second operand 7 states and 604 transitions. [2023-08-29 20:51:19,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 87 transitions, 850 flow [2023-08-29 20:51:19,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 87 transitions, 830 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-29 20:51:19,997 INFO L231 Difference]: Finished difference. Result has 65 places, 35 transitions, 367 flow [2023-08-29 20:51:19,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=367, PETRI_PLACES=65, PETRI_TRANSITIONS=35} [2023-08-29 20:51:19,999 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2023-08-29 20:51:19,999 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 35 transitions, 367 flow [2023-08-29 20:51:19,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:20,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:20,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 20:51:20,001 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)] === [2023-08-29 20:51:20,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:20,002 INFO L85 PathProgramCache]: Analyzing trace with hash 276122630, now seen corresponding path program 1 times [2023-08-29 20:51:20,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:20,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301887980] [2023-08-29 20:51:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:20,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:20,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301887980] [2023-08-29 20:51:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301887980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:20,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:20,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:51:20,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884848508] [2023-08-29 20:51:20,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:20,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 20:51:20,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:20,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 20:51:20,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 20:51:20,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-29 20:51:20,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 35 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:20,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-29 20:51:20,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:20,254 INFO L130 PetriNetUnfolder]: 260/534 cut-off events. [2023-08-29 20:51:20,254 INFO L131 PetriNetUnfolder]: For 3741/3768 co-relation queries the response was YES. [2023-08-29 20:51:20,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 534 events. 260/534 cut-off events. For 3741/3768 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2695 event pairs, 73 based on Foata normal form. 41/564 useless extension candidates. Maximal degree in co-relation 2452. Up to 381 conditions per place. [2023-08-29 20:51:20,258 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 33 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2023-08-29 20:51:20,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 50 transitions, 560 flow [2023-08-29 20:51:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 20:51:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 20:51:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-08-29 20:51:20,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119705340699816 [2023-08-29 20:51:20,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-08-29 20:51:20,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-08-29 20:51:20,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:20,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-08-29 20:51:20,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,263 INFO L175 Difference]: Start difference. First operand has 65 places, 35 transitions, 367 flow. Second operand 3 states and 278 transitions. [2023-08-29 20:51:20,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 50 transitions, 560 flow [2023-08-29 20:51:20,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 492 flow, removed 10 selfloop flow, removed 8 redundant places. [2023-08-29 20:51:20,273 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 338 flow [2023-08-29 20:51:20,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2023-08-29 20:51:20,274 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2023-08-29 20:51:20,274 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 338 flow [2023-08-29 20:51:20,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:20,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:20,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 20:51:20,275 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)] === [2023-08-29 20:51:20,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1733245947, now seen corresponding path program 1 times [2023-08-29 20:51:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:20,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252737405] [2023-08-29 20:51:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:20,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:20,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252737405] [2023-08-29 20:51:20,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252737405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:20,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:20,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:51:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765617762] [2023-08-29 20:51:20,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:20,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:51:20,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:20,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:51:20,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:51:20,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-29 20:51:20,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:20,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-29 20:51:20,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:20,483 INFO L130 PetriNetUnfolder]: 146/331 cut-off events. [2023-08-29 20:51:20,483 INFO L131 PetriNetUnfolder]: For 1253/1284 co-relation queries the response was YES. [2023-08-29 20:51:20,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 331 events. 146/331 cut-off events. For 1253/1284 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1556 event pairs, 24 based on Foata normal form. 60/383 useless extension candidates. Maximal degree in co-relation 1584. Up to 138 conditions per place. [2023-08-29 20:51:20,485 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 36 selfloop transitions, 7 changer transitions 1/57 dead transitions. [2023-08-29 20:51:20,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 573 flow [2023-08-29 20:51:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 20:51:20,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 20:51:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2023-08-29 20:51:20,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5096685082872928 [2023-08-29 20:51:20,487 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2023-08-29 20:51:20,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2023-08-29 20:51:20,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:20,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2023-08-29 20:51:20,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,490 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,490 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 338 flow. Second operand 4 states and 369 transitions. [2023-08-29 20:51:20,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 573 flow [2023-08-29 20:51:20,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 557 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-29 20:51:20,494 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 357 flow [2023-08-29 20:51:20,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2023-08-29 20:51:20,494 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2023-08-29 20:51:20,495 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 357 flow [2023-08-29 20:51:20,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:20,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:20,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 20:51:20,495 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)] === [2023-08-29 20:51:20,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash 524233750, now seen corresponding path program 1 times [2023-08-29 20:51:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:20,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955858065] [2023-08-29 20:51:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:20,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955858065] [2023-08-29 20:51:20,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955858065] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:20,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:20,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:51:20,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346037181] [2023-08-29 20:51:20,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:20,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:51:20,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:20,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:51:20,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:51:20,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181 [2023-08-29 20:51:20,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 357 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:20,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181 [2023-08-29 20:51:20,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:20,671 INFO L130 PetriNetUnfolder]: 126/276 cut-off events. [2023-08-29 20:51:20,672 INFO L131 PetriNetUnfolder]: For 1333/1375 co-relation queries the response was YES. [2023-08-29 20:51:20,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 276 events. 126/276 cut-off events. For 1333/1375 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1278 event pairs, 18 based on Foata normal form. 46/314 useless extension candidates. Maximal degree in co-relation 1420. Up to 105 conditions per place. [2023-08-29 20:51:20,673 INFO L137 encePairwiseOnDemand]: 176/181 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2023-08-29 20:51:20,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 54 transitions, 559 flow [2023-08-29 20:51:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2023-08-29 20:51:20,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4972375690607735 [2023-08-29 20:51:20,675 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2023-08-29 20:51:20,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2023-08-29 20:51:20,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:20,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2023-08-29 20:51:20,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,679 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,679 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 357 flow. Second operand 5 states and 450 transitions. [2023-08-29 20:51:20,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 54 transitions, 559 flow [2023-08-29 20:51:20,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 519 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-29 20:51:20,683 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2023-08-29 20:51:20,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2023-08-29 20:51:20,683 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2023-08-29 20:51:20,683 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2023-08-29 20:51:20,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:51:20,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-29 20:51:20,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-29 20:51:20,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-29 20:51:20,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-29 20:51:20,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-29 20:51:20,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-29 20:51:20,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-29 20:51:20,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-29 20:51:20,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-29 20:51:20,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-29 20:51:20,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-29 20:51:20,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 20:51:20,689 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:20,691 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 20:51:20,691 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 20:51:20,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:51:20 BasicIcfg [2023-08-29 20:51:20,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 20:51:20,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 20:51:20,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 20:51:20,695 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 20:51:20,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:51:13" (3/4) ... [2023-08-29 20:51:20,697 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 20:51:20,702 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-29 20:51:20,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-29 20:51:20,703 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-29 20:51:20,706 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-29 20:51:20,707 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 20:51:20,707 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 20:51:20,707 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 20:51:20,732 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 20:51:20,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 20:51:20,733 INFO L158 Benchmark]: Toolchain (without parser) took 8189.85ms. Allocated memory was 62.9MB in the beginning and 228.6MB in the end (delta: 165.7MB). Free memory was 39.0MB in the beginning and 106.4MB in the end (delta: -67.4MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2023-08-29 20:51:20,733 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:51:20,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.72ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 38.8MB in the beginning and 48.6MB in the end (delta: -9.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-08-29 20:51:20,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.19ms. Allocated memory is still 77.6MB. Free memory was 48.6MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:51:20,734 INFO L158 Benchmark]: Boogie Preprocessor took 48.90ms. Allocated memory is still 77.6MB. Free memory was 46.5MB in the beginning and 45.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:51:20,734 INFO L158 Benchmark]: RCFGBuilder took 459.20ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 54.1MB in the end (delta: -9.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-08-29 20:51:20,734 INFO L158 Benchmark]: TraceAbstraction took 7059.27ms. Allocated memory was 77.6MB in the beginning and 228.6MB in the end (delta: 151.0MB). Free memory was 53.5MB in the beginning and 108.5MB in the end (delta: -54.9MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2023-08-29 20:51:20,735 INFO L158 Benchmark]: Witness Printer took 37.65ms. Allocated memory is still 228.6MB. Free memory was 108.5MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:51:20,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.72ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 38.8MB in the beginning and 48.6MB in the end (delta: -9.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.19ms. Allocated memory is still 77.6MB. Free memory was 48.6MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.90ms. Allocated memory is still 77.6MB. Free memory was 46.5MB in the beginning and 45.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 459.20ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 54.1MB in the end (delta: -9.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7059.27ms. Allocated memory was 77.6MB in the beginning and 228.6MB in the end (delta: 151.0MB). Free memory was 53.5MB in the beginning and 108.5MB in the end (delta: -54.9MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. * Witness Printer took 37.65ms. Allocated memory is still 228.6MB. Free memory was 108.5MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 95 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 2934 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1611, independent: 1529, independent conditional: 0, independent unconditional: 1529, 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: 832, independent: 806, independent conditional: 0, independent unconditional: 806, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1611, independent: 723, independent conditional: 0, independent unconditional: 723, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 832, unknown conditional: 0, unknown unconditional: 832] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: 778]: 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, 117 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: 6.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 456 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 946 IncrementalHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 49 mSDtfsCounter, 946 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=565occurred in iteration=6, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 841 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! [2023-08-29 20:51:20,756 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