./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe021_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/safe021_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 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 --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 20:47:05,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 20:47:05,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 20:47:05,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 20:47:05,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 20:47:05,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 20:47:05,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 20:47:05,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 20:47:05,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 20:47:05,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 20:47:05,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 20:47:05,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 20:47:05,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 20:47:05,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 20:47:05,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 20:47:05,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 20:47:05,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 20:47:05,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 20:47:05,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 20:47:05,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 20:47:05,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 20:47:05,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 20:47:05,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 20:47:05,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 20:47:05,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 20:47:05,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 20:47:05,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 20:47:05,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 20:47:05,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 20:47:05,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 20:47:05,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 20:47:05,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 20:47:05,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 20:47:05,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 20:47:05,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 20:47:05,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 20:47:05,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 20:47:05,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 20:47:05,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 20:47:05,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 20:47:05,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 20:47:05,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 20:47:05,617 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 20:47:05,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 20:47:05,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 20:47:05,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 20:47:05,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 20:47:05,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 20:47:05,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 20:47:05,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 20:47:05,620 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 20:47:05,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 20:47:05,621 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 20:47:05,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 20:47:05,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 20:47:05,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 20:47:05,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 20:47:05,621 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 20:47:05,622 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 20:47:05,622 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 20:47:05,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 20:47:05,622 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 20:47:05,622 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 20:47:05,622 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 20:47:05,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 20:47:05,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 20:47:05,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 20:47:05,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:47:05,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 20:47:05,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 20:47:05,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 20:47:05,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 20:47:05,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 20:47:05,624 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 20:47:05,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 20:47:05,624 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 20:47:05,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 20:47:05,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 20:47:05,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 20:47:05,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 20:47:05,944 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 20:47:05,945 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 20:47:05,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2023-08-29 20:47:06,873 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 20:47:07,120 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 20:47:07,123 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.i [2023-08-29 20:47:07,149 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29c4a7f76/a2a29624ae674f86a15853e00d30d03b/FLAG641249671 [2023-08-29 20:47:07,163 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29c4a7f76/a2a29624ae674f86a15853e00d30d03b [2023-08-29 20:47:07,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 20:47:07,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 20:47:07,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 20:47:07,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 20:47:07,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 20:47:07,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250c17de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07, skipping insertion in model container [2023-08-29 20:47:07,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 20:47:07,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:47:07,340 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/safe021_tso.i[945,958] [2023-08-29 20:47:07,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:47:07,493 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 20:47:07,509 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/safe021_tso.i[945,958] [2023-08-29 20:47:07,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:47:07,582 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:47:07,585 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:47:07,600 INFO L208 MainTranslator]: Completed translation [2023-08-29 20:47:07,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07 WrapperNode [2023-08-29 20:47:07,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 20:47:07,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 20:47:07,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 20:47:07,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 20:47:07,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,637 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-08-29 20:47:07,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 20:47:07,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 20:47:07,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 20:47:07,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 20:47:07,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,658 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 20:47:07,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 20:47:07,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 20:47:07,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 20:47:07,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (1/1) ... [2023-08-29 20:47:07,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:47:07,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 20:47:07,692 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 20:47:07,711 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 20:47:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 20:47:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 20:47:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 20:47:07,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 20:47:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 20:47:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-29 20:47:07,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-29 20:47:07,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-29 20:47:07,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-29 20:47:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-29 20:47:07,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-29 20:47:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 20:47:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 20:47:07,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 20:47:07,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 20:47:07,722 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 20:47:07,862 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 20:47:07,864 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 20:47:08,038 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 20:47:08,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 20:47:08,042 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 20:47:08,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:08 BoogieIcfgContainer [2023-08-29 20:47:08,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 20:47:08,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 20:47:08,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 20:47:08,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 20:47:08,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:07" (1/3) ... [2023-08-29 20:47:08,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f45dcb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:08, skipping insertion in model container [2023-08-29 20:47:08,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:07" (2/3) ... [2023-08-29 20:47:08,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f45dcb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:08, skipping insertion in model container [2023-08-29 20:47:08,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:08" (3/3) ... [2023-08-29 20:47:08,049 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2023-08-29 20:47:08,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 20:47:08,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-29 20:47:08,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 20:47:08,091 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 20:47:08,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2023-08-29 20:47:08,158 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-08-29 20:47:08,158 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:47:08,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-29 20:47:08,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2023-08-29 20:47:08,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2023-08-29 20:47:08,167 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 20:47:08,176 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-29 20:47:08,180 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 88 transitions, 185 flow [2023-08-29 20:47:08,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 88 transitions, 185 flow [2023-08-29 20:47:08,204 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-08-29 20:47:08,204 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:47:08,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-29 20:47:08,206 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-29 20:47:10,266 INFO L134 LiptonReduction]: Checked pairs total: 2920 [2023-08-29 20:47:10,266 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-08-29 20:47:10,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 20:47:10,288 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;@287c6a27, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 20:47:10,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 20:47:10,289 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 20:47:10,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:47:10,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:10,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 20:47:10,291 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 20:47:10,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 339, now seen corresponding path program 1 times [2023-08-29 20:47:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:10,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386885472] [2023-08-29 20:47:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:10,395 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 20:47:10,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:10,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386885472] [2023-08-29 20:47:10,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386885472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:10,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:10,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 20:47:10,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403674398] [2023-08-29 20:47:10,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:10,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 20:47:10,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:10,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 20:47:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 20:47:10,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 186 [2023-08-29 20:47:10,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:10,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:10,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 186 [2023-08-29 20:47:10,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:10,533 INFO L130 PetriNetUnfolder]: 272/455 cut-off events. [2023-08-29 20:47:10,533 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 20:47:10,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 455 events. 272/455 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1962 event pairs, 272 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 907. Up to 433 conditions per place. [2023-08-29 20:47:10,538 INFO L137 encePairwiseOnDemand]: 179/186 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-29 20:47:10,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-29 20:47:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 20:47:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 20:47:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 201 transitions. [2023-08-29 20:47:10,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2023-08-29 20:47:10,549 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 201 transitions. [2023-08-29 20:47:10,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 201 transitions. [2023-08-29 20:47:10,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:10,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 201 transitions. [2023-08-29 20:47:10,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:10,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 20:47:10,560 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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 20:47:10,561 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 201 transitions. [2023-08-29 20:47:10,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-29 20:47:10,563 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 20:47:10,564 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-29 20:47:10,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, 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 20:47:10,567 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-29 20:47:10,567 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-29 20:47:10,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:10,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:10,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:10,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 20:47:10,569 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 20:47:10,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash -15845208, now seen corresponding path program 1 times [2023-08-29 20:47:10,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:10,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899695409] [2023-08-29 20:47:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:10,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:11,156 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 20:47:11,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:11,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899695409] [2023-08-29 20:47:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899695409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:11,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:11,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:47:11,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040905382] [2023-08-29 20:47:11,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:11,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 20:47:11,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:11,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 20:47:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 20:47:11,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 186 [2023-08-29 20:47:11,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:11,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:11,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 186 [2023-08-29 20:47:11,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:11,358 INFO L130 PetriNetUnfolder]: 218/391 cut-off events. [2023-08-29 20:47:11,358 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:47:11,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 391 events. 218/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1722 event pairs, 12 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 768. Up to 222 conditions per place. [2023-08-29 20:47:11,360 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 24 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2023-08-29 20:47:11,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 124 flow [2023-08-29 20:47:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 20:47:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 20:47:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2023-08-29 20:47:11,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42473118279569894 [2023-08-29 20:47:11,363 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 474 transitions. [2023-08-29 20:47:11,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 474 transitions. [2023-08-29 20:47:11,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:11,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 474 transitions. [2023-08-29 20:47:11,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 20:47:11,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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 20:47:11,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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 20:47:11,368 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 474 transitions. [2023-08-29 20:47:11,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 124 flow [2023-08-29 20:47:11,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 20:47:11,369 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 50 flow [2023-08-29 20:47:11,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2023-08-29 20:47:11,369 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2023-08-29 20:47:11,369 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 50 flow [2023-08-29 20:47:11,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.5) internal successors, (453), 6 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:11,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:11,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:11,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 20:47:11,370 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 20:47:11,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:11,371 INFO L85 PathProgramCache]: Analyzing trace with hash -15845256, now seen corresponding path program 1 times [2023-08-29 20:47:11,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:11,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946205392] [2023-08-29 20:47:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:11,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:11,468 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 20:47:11,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:11,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946205392] [2023-08-29 20:47:11,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946205392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:11,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:11,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:47:11,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960059174] [2023-08-29 20:47:11,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:11,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:47:11,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:11,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:47:11,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:47:11,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 186 [2023-08-29 20:47:11,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 20:47:11,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:11,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 186 [2023-08-29 20:47:11,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:11,597 INFO L130 PetriNetUnfolder]: 616/1019 cut-off events. [2023-08-29 20:47:11,597 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-29 20:47:11,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2157 conditions, 1019 events. 616/1019 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5135 event pairs, 177 based on Foata normal form. 70/1089 useless extension candidates. Maximal degree in co-relation 2153. Up to 581 conditions per place. [2023-08-29 20:47:11,601 INFO L137 encePairwiseOnDemand]: 179/186 looper letters, 24 selfloop transitions, 5 changer transitions 17/47 dead transitions. [2023-08-29 20:47:11,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 47 transitions, 210 flow [2023-08-29 20:47:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:47:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:47:11,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2023-08-29 20:47:11,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4870967741935484 [2023-08-29 20:47:11,603 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2023-08-29 20:47:11,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2023-08-29 20:47:11,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:11,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2023-08-29 20:47:11,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:11,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 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 20:47:11,606 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 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 20:47:11,606 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 50 flow. Second operand 5 states and 453 transitions. [2023-08-29 20:47:11,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 47 transitions, 210 flow [2023-08-29 20:47:11,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 20:47:11,608 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 94 flow [2023-08-29 20:47:11,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2023-08-29 20:47:11,608 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-29 20:47:11,608 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 94 flow [2023-08-29 20:47:11,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 20:47:11,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:11,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:11,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 20:47:11,609 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 20:47:11,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash -491239347, now seen corresponding path program 1 times [2023-08-29 20:47:11,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:11,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240711085] [2023-08-29 20:47:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:11,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:11,718 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 20:47:11,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:11,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240711085] [2023-08-29 20:47:11,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240711085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:11,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:11,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:47:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305270163] [2023-08-29 20:47:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:11,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:47:11,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:47:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:47:11,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 186 [2023-08-29 20:47:11,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 20:47:11,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:11,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 186 [2023-08-29 20:47:11,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:11,826 INFO L130 PetriNetUnfolder]: 519/859 cut-off events. [2023-08-29 20:47:11,827 INFO L131 PetriNetUnfolder]: For 627/627 co-relation queries the response was YES. [2023-08-29 20:47:11,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 859 events. 519/859 cut-off events. For 627/627 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4139 event pairs, 123 based on Foata normal form. 48/903 useless extension candidates. Maximal degree in co-relation 2503. Up to 453 conditions per place. [2023-08-29 20:47:11,830 INFO L137 encePairwiseOnDemand]: 179/186 looper letters, 26 selfloop transitions, 6 changer transitions 17/50 dead transitions. [2023-08-29 20:47:11,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 288 flow [2023-08-29 20:47:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:47:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:47:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 616 transitions. [2023-08-29 20:47:11,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925 [2023-08-29 20:47:11,832 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 616 transitions. [2023-08-29 20:47:11,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 616 transitions. [2023-08-29 20:47:11,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:11,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 616 transitions. [2023-08-29 20:47:11,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 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 20:47:11,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 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 20:47:11,836 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 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 20:47:11,836 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 94 flow. Second operand 7 states and 616 transitions. [2023-08-29 20:47:11,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 288 flow [2023-08-29 20:47:11,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 258 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-29 20:47:11,840 INFO L231 Difference]: Finished difference. Result has 43 places, 24 transitions, 126 flow [2023-08-29 20:47:11,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=126, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2023-08-29 20:47:11,841 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-29 20:47:11,841 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 24 transitions, 126 flow [2023-08-29 20:47:11,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 20:47:11,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:11,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:11,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 20:47:11,842 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 20:47:11,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:11,842 INFO L85 PathProgramCache]: Analyzing trace with hash -491233581, now seen corresponding path program 1 times [2023-08-29 20:47:11,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:11,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736620817] [2023-08-29 20:47:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:11,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:11,933 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 20:47:11,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:11,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736620817] [2023-08-29 20:47:11,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736620817] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:11,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:11,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:47:11,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127427153] [2023-08-29 20:47:11,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:11,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:47:11,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:11,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:47:11,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:47:11,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 186 [2023-08-29 20:47:11,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 24 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 20:47:11,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:11,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 186 [2023-08-29 20:47:11,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:12,050 INFO L130 PetriNetUnfolder]: 472/817 cut-off events. [2023-08-29 20:47:12,051 INFO L131 PetriNetUnfolder]: For 1468/1468 co-relation queries the response was YES. [2023-08-29 20:47:12,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 817 events. 472/817 cut-off events. For 1468/1468 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4061 event pairs, 105 based on Foata normal form. 52/869 useless extension candidates. Maximal degree in co-relation 2536. Up to 447 conditions per place. [2023-08-29 20:47:12,055 INFO L137 encePairwiseOnDemand]: 179/186 looper letters, 31 selfloop transitions, 11 changer transitions 18/61 dead transitions. [2023-08-29 20:47:12,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 403 flow [2023-08-29 20:47:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:47:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:47:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 626 transitions. [2023-08-29 20:47:12,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807987711213518 [2023-08-29 20:47:12,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 626 transitions. [2023-08-29 20:47:12,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 626 transitions. [2023-08-29 20:47:12,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:12,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 626 transitions. [2023-08-29 20:47:12,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 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 20:47:12,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 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 20:47:12,074 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 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 20:47:12,074 INFO L175 Difference]: Start difference. First operand has 43 places, 24 transitions, 126 flow. Second operand 7 states and 626 transitions. [2023-08-29 20:47:12,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 403 flow [2023-08-29 20:47:12,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 385 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-29 20:47:12,078 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 192 flow [2023-08-29 20:47:12,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2023-08-29 20:47:12,080 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2023-08-29 20:47:12,080 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 192 flow [2023-08-29 20:47:12,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 20:47:12,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:12,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:12,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 20:47:12,081 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 20:47:12,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:12,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1951418782, now seen corresponding path program 1 times [2023-08-29 20:47:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:12,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563620200] [2023-08-29 20:47:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:12,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:12,193 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 20:47:12,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:12,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563620200] [2023-08-29 20:47:12,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563620200] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:12,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:12,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:47:12,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961759425] [2023-08-29 20:47:12,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:47:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:12,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:47:12,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:47:12,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 186 [2023-08-29 20:47:12,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:12,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 186 [2023-08-29 20:47:12,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:12,333 INFO L130 PetriNetUnfolder]: 500/886 cut-off events. [2023-08-29 20:47:12,334 INFO L131 PetriNetUnfolder]: For 1768/1810 co-relation queries the response was YES. [2023-08-29 20:47:12,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2820 conditions, 886 events. 500/886 cut-off events. For 1768/1810 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4530 event pairs, 135 based on Foata normal form. 64/940 useless extension candidates. Maximal degree in co-relation 2805. Up to 257 conditions per place. [2023-08-29 20:47:12,338 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 23 selfloop transitions, 4 changer transitions 20/52 dead transitions. [2023-08-29 20:47:12,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 369 flow [2023-08-29 20:47:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 20:47:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 20:47:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 545 transitions. [2023-08-29 20:47:12,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883512544802867 [2023-08-29 20:47:12,340 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 545 transitions. [2023-08-29 20:47:12,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 545 transitions. [2023-08-29 20:47:12,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:12,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 545 transitions. [2023-08-29 20:47:12,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 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 20:47:12,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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 20:47:12,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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 20:47:12,343 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 192 flow. Second operand 6 states and 545 transitions. [2023-08-29 20:47:12,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 369 flow [2023-08-29 20:47:12,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 355 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-29 20:47:12,349 INFO L231 Difference]: Finished difference. Result has 49 places, 23 transitions, 151 flow [2023-08-29 20:47:12,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=151, PETRI_PLACES=49, PETRI_TRANSITIONS=23} [2023-08-29 20:47:12,351 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2023-08-29 20:47:12,351 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 23 transitions, 151 flow [2023-08-29 20:47:12,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:12,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:12,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 20:47:12,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-29 20:47:12,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash 22959254, now seen corresponding path program 1 times [2023-08-29 20:47:12,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:12,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282039220] [2023-08-29 20:47:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:12,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:12,425 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 20:47:12,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:12,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282039220] [2023-08-29 20:47:12,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282039220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:12,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:12,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 20:47:12,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622216928] [2023-08-29 20:47:12,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:12,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 20:47:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:12,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 20:47:12,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 20:47:12,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 186 [2023-08-29 20:47:12,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 23 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:12,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 186 [2023-08-29 20:47:12,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:12,470 INFO L130 PetriNetUnfolder]: 162/316 cut-off events. [2023-08-29 20:47:12,471 INFO L131 PetriNetUnfolder]: For 578/589 co-relation queries the response was YES. [2023-08-29 20:47:12,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 316 events. 162/316 cut-off events. For 578/589 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1311 event pairs, 61 based on Foata normal form. 8/313 useless extension candidates. Maximal degree in co-relation 1052. Up to 252 conditions per place. [2023-08-29 20:47:12,472 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 24 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2023-08-29 20:47:12,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 34 transitions, 261 flow [2023-08-29 20:47:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 20:47:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 20:47:12,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-29 20:47:12,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503584229390681 [2023-08-29 20:47:12,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-29 20:47:12,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-29 20:47:12,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:12,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-29 20:47:12,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 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 20:47:12,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 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 20:47:12,476 INFO L175 Difference]: Start difference. First operand has 49 places, 23 transitions, 151 flow. Second operand 3 states and 281 transitions. [2023-08-29 20:47:12,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 34 transitions, 261 flow [2023-08-29 20:47:12,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 34 transitions, 200 flow, removed 8 selfloop flow, removed 11 redundant places. [2023-08-29 20:47:12,477 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 128 flow [2023-08-29 20:47:12,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-08-29 20:47:12,478 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2023-08-29 20:47:12,478 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 128 flow [2023-08-29 20:47:12,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:12,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:12,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 20:47:12,479 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 20:47:12,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:12,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1931578087, now seen corresponding path program 1 times [2023-08-29 20:47:12,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:12,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928430037] [2023-08-29 20:47:12,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:12,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:12,564 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 20:47:12,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:12,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928430037] [2023-08-29 20:47:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928430037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:12,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:12,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:47:12,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976852363] [2023-08-29 20:47:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:12,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:47:12,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:12,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:47:12,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:47:12,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 186 [2023-08-29 20:47:12,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:12,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 186 [2023-08-29 20:47:12,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:12,605 INFO L130 PetriNetUnfolder]: 89/201 cut-off events. [2023-08-29 20:47:12,605 INFO L131 PetriNetUnfolder]: For 169/196 co-relation queries the response was YES. [2023-08-29 20:47:12,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 201 events. 89/201 cut-off events. For 169/196 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 766 event pairs, 21 based on Foata normal form. 30/224 useless extension candidates. Maximal degree in co-relation 661. Up to 90 conditions per place. [2023-08-29 20:47:12,606 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 29 selfloop transitions, 7 changer transitions 0/42 dead transitions. [2023-08-29 20:47:12,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 274 flow [2023-08-29 20:47:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 20:47:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 20:47:12,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2023-08-29 20:47:12,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5013440860215054 [2023-08-29 20:47:12,608 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 373 transitions. [2023-08-29 20:47:12,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 373 transitions. [2023-08-29 20:47:12,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:12,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 373 transitions. [2023-08-29 20:47:12,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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 20:47:12,610 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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 20:47:12,610 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 128 flow. Second operand 4 states and 373 transitions. [2023-08-29 20:47:12,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 274 flow [2023-08-29 20:47:12,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 42 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 20:47:12,611 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 164 flow [2023-08-29 20:47:12,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2023-08-29 20:47:12,612 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2023-08-29 20:47:12,612 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 164 flow [2023-08-29 20:47:12,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:12,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:12,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 20:47:12,613 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 20:47:12,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:12,613 INFO L85 PathProgramCache]: Analyzing trace with hash -887975621, now seen corresponding path program 1 times [2023-08-29 20:47:12,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:12,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506885974] [2023-08-29 20:47:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:12,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:12,708 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 20:47:12,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:12,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506885974] [2023-08-29 20:47:12,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506885974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:12,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:12,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:47:12,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338535733] [2023-08-29 20:47:12,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:12,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:47:12,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:47:12,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:47:12,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 186 [2023-08-29 20:47:12,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:12,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 186 [2023-08-29 20:47:12,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:12,756 INFO L130 PetriNetUnfolder]: 69/156 cut-off events. [2023-08-29 20:47:12,756 INFO L131 PetriNetUnfolder]: For 304/350 co-relation queries the response was YES. [2023-08-29 20:47:12,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 156 events. 69/156 cut-off events. For 304/350 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 556 event pairs, 14 based on Foata normal form. 39/189 useless extension candidates. Maximal degree in co-relation 581. Up to 66 conditions per place. [2023-08-29 20:47:12,757 INFO L137 encePairwiseOnDemand]: 181/186 looper letters, 25 selfloop transitions, 10 changer transitions 1/42 dead transitions. [2023-08-29 20:47:12,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 298 flow [2023-08-29 20:47:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:47:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:47:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 458 transitions. [2023-08-29 20:47:12,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4924731182795699 [2023-08-29 20:47:12,759 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 458 transitions. [2023-08-29 20:47:12,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 458 transitions. [2023-08-29 20:47:12,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:12,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 458 transitions. [2023-08-29 20:47:12,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 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 20:47:12,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 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 20:47:12,762 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 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 20:47:12,762 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 164 flow. Second operand 5 states and 458 transitions. [2023-08-29 20:47:12,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 298 flow [2023-08-29 20:47:12,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 271 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-29 20:47:12,763 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 169 flow [2023-08-29 20:47:12,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2023-08-29 20:47:12,764 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-29 20:47:12,764 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 169 flow [2023-08-29 20:47:12,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 20:47:12,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:47:12,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:12,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 20:47:12,765 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 20:47:12,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:47:12,765 INFO L85 PathProgramCache]: Analyzing trace with hash -887397300, now seen corresponding path program 1 times [2023-08-29 20:47:12,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:47:12,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715587831] [2023-08-29 20:47:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:47:12,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:47:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:47:12,848 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 20:47:12,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:47:12,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715587831] [2023-08-29 20:47:12,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715587831] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:47:12,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:47:12,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:47:12,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797440644] [2023-08-29 20:47:12,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:47:12,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:47:12,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:47:12,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:47:12,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:47:12,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 186 [2023-08-29 20:47:12,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 20:47:12,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:47:12,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 186 [2023-08-29 20:47:12,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:47:12,928 INFO L130 PetriNetUnfolder]: 100/212 cut-off events. [2023-08-29 20:47:12,929 INFO L131 PetriNetUnfolder]: For 421/421 co-relation queries the response was YES. [2023-08-29 20:47:12,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 212 events. 100/212 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 769 event pairs, 8 based on Foata normal form. 1/213 useless extension candidates. Maximal degree in co-relation 803. Up to 107 conditions per place. [2023-08-29 20:47:12,929 INFO L137 encePairwiseOnDemand]: 178/186 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2023-08-29 20:47:12,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 391 flow [2023-08-29 20:47:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 20:47:12,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 20:47:12,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2023-08-29 20:47:12,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4578853046594982 [2023-08-29 20:47:12,931 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 511 transitions. [2023-08-29 20:47:12,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 511 transitions. [2023-08-29 20:47:12,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:47:12,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 511 transitions. [2023-08-29 20:47:12,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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 20:47:12,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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 20:47:12,934 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 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 20:47:12,934 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 169 flow. Second operand 6 states and 511 transitions. [2023-08-29 20:47:12,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 391 flow [2023-08-29 20:47:12,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 350 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-29 20:47:12,935 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-08-29 20:47:12,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-08-29 20:47:12,936 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2023-08-29 20:47:12,936 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-08-29 20:47:12,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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 20:47:12,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-29 20:47:12,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-29 20:47:12,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-29 20:47:12,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-29 20:47:12,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 20:47:12,940 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:47:12,942 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 20:47:12,942 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 20:47:12,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:12 BasicIcfg [2023-08-29 20:47:12,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 20:47:12,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 20:47:12,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 20:47:12,945 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 20:47:12,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:08" (3/4) ... [2023-08-29 20:47:12,947 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 20:47:12,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-29 20:47:12,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-29 20:47:12,951 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-29 20:47:12,953 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-29 20:47:12,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 20:47:12,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 20:47:12,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 20:47:12,976 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 20:47:12,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 20:47:12,977 INFO L158 Benchmark]: Toolchain (without parser) took 5810.16ms. Allocated memory was 71.3MB in the beginning and 174.1MB in the end (delta: 102.8MB). Free memory was 48.0MB in the beginning and 54.7MB in the end (delta: -6.7MB). Peak memory consumption was 98.1MB. Max. memory is 16.1GB. [2023-08-29 20:47:12,977 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:47:12,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.95ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 46.1MB in the end (delta: 1.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-08-29 20:47:12,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.62ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 44.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:47:12,977 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 71.3MB. Free memory was 44.0MB in the beginning and 42.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:47:12,978 INFO L158 Benchmark]: RCFGBuilder took 383.17ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 48.7MB in the end (delta: -6.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-29 20:47:12,978 INFO L158 Benchmark]: TraceAbstraction took 4899.24ms. Allocated memory was 71.3MB in the beginning and 174.1MB in the end (delta: 102.8MB). Free memory was 48.0MB in the beginning and 57.9MB in the end (delta: -9.8MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2023-08-29 20:47:12,978 INFO L158 Benchmark]: Witness Printer took 31.90ms. Allocated memory is still 174.1MB. Free memory was 57.9MB in the beginning and 54.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 20:47:12,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.95ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 46.1MB in the end (delta: 1.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.62ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 44.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 71.3MB. Free memory was 44.0MB in the beginning and 42.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 383.17ms. Allocated memory is still 71.3MB. Free memory was 42.6MB in the beginning and 48.7MB in the end (delta: -6.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4899.24ms. Allocated memory was 71.3MB in the beginning and 174.1MB in the end (delta: 102.8MB). Free memory was 48.0MB in the beginning and 57.9MB in the end (delta: -9.8MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. * Witness Printer took 31.90ms. Allocated memory is still 174.1MB. Free memory was 57.9MB in the beginning and 54.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 96 PlacesBefore, 35 PlacesAfterwards, 88 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 2920 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1856, independent: 1777, independent conditional: 0, independent unconditional: 1777, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 852, independent: 828, independent conditional: 0, independent unconditional: 828, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1856, independent: 949, independent conditional: 0, independent unconditional: 949, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 852, unknown conditional: 0, unknown unconditional: 852] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 362 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 783 IncrementalHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 31 mSDtfsCounter, 783 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=5, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 20:47:13,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE