./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_power.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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 23:45:09,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 23:45:09,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 23:45:09,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 23:45:09,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 23:45:09,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 23:45:09,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 23:45:09,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 23:45:09,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 23:45:09,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 23:45:09,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 23:45:09,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 23:45:09,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 23:45:09,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 23:45:09,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 23:45:09,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 23:45:09,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 23:45:09,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 23:45:09,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 23:45:09,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 23:45:09,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 23:45:09,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 23:45:09,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 23:45:09,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 23:45:09,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 23:45:09,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 23:45:09,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 23:45:09,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 23:45:09,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 23:45:09,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 23:45:09,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 23:45:09,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 23:45:09,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 23:45:09,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 23:45:09,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 23:45:09,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 23:45:09,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 23:45:09,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 23:45:09,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 23:45:09,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 23:45:09,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 23:45:09,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-31 23:45:09,519 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 23:45:09,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 23:45:09,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 23:45:09,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 23:45:09,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 23:45:09,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 23:45:09,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 23:45:09,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 23:45:09,523 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 23:45:09,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 23:45:09,524 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 23:45:09,524 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 23:45:09,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 23:45:09,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 23:45:09,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 23:45:09,525 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-31 23:45:09,525 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-31 23:45:09,525 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-31 23:45:09,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 23:45:09,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-31 23:45:09,526 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 23:45:09,526 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 23:45:09,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 23:45:09,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 23:45:09,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 23:45:09,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:45:09,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 23:45:09,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 23:45:09,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 23:45:09,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 23:45:09,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 23:45:09,528 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 23:45:09,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 23:45:09,529 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 23:45:09,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 23:45:09,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 23:45:09,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 23:45:09,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 23:45:09,852 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 23:45:09,852 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 23:45:09,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i [2023-08-31 23:45:11,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 23:45:11,394 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 23:45:11,395 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i [2023-08-31 23:45:11,412 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6956523d8/e7bc7b1dea574c0e9c50bb49ffaa6f9c/FLAG0ae610762 [2023-08-31 23:45:11,431 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6956523d8/e7bc7b1dea574c0e9c50bb49ffaa6f9c [2023-08-31 23:45:11,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 23:45:11,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 23:45:11,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 23:45:11,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 23:45:11,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 23:45:11,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:45:11" (1/1) ... [2023-08-31 23:45:11,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f4eff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:11, skipping insertion in model container [2023-08-31 23:45:11,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:45:11" (1/1) ... [2023-08-31 23:45:11,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 23:45:11,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 23:45:11,635 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i[947,960] [2023-08-31 23:45:11,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:45:11,894 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 23:45:11,913 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i[947,960] [2023-08-31 23:45:11,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:45:12,033 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:45:12,033 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:45:12,039 INFO L208 MainTranslator]: Completed translation [2023-08-31 23:45:12,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12 WrapperNode [2023-08-31 23:45:12,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 23:45:12,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 23:45:12,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 23:45:12,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 23:45:12,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,105 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-08-31 23:45:12,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 23:45:12,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 23:45:12,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 23:45:12,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 23:45:12,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 23:45:12,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 23:45:12,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 23:45:12,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 23:45:12,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (1/1) ... [2023-08-31 23:45:12,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:45:12,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 23:45:12,174 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) [2023-08-31 23:45:12,183 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 [2023-08-31 23:45:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 23:45:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 23:45:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 23:45:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 23:45:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 23:45:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-31 23:45:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-31 23:45:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-31 23:45:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-31 23:45:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-31 23:45:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-31 23:45:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 23:45:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 23:45:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 23:45:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 23:45:12,220 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 23:45:12,350 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 23:45:12,352 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 23:45:12,873 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 23:45:13,086 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 23:45:13,087 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 23:45:13,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:45:13 BoogieIcfgContainer [2023-08-31 23:45:13,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 23:45:13,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 23:45:13,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 23:45:13,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 23:45:13,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:45:11" (1/3) ... [2023-08-31 23:45:13,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:45:13, skipping insertion in model container [2023-08-31 23:45:13,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:45:12" (2/3) ... [2023-08-31 23:45:13,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe4550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:45:13, skipping insertion in model container [2023-08-31 23:45:13,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:45:13" (3/3) ... [2023-08-31 23:45:13,097 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2023-08-31 23:45:13,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 23:45:13,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-31 23:45:13,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 23:45:13,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 23:45:13,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 259 flow [2023-08-31 23:45:13,282 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2023-08-31 23:45:13,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:45:13,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 119 events. 2/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-31 23:45:13,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 122 transitions, 259 flow [2023-08-31 23:45:13,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 119 transitions, 247 flow [2023-08-31 23:45:13,297 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 23:45:13,318 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 119 transitions, 247 flow [2023-08-31 23:45:13,321 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 119 transitions, 247 flow [2023-08-31 23:45:13,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 247 flow [2023-08-31 23:45:13,366 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2023-08-31 23:45:13,366 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:45:13,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 119 events. 2/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-08-31 23:45:13,369 INFO L119 LiptonReduction]: Number of co-enabled transitions 2448 [2023-08-31 23:45:19,073 INFO L134 LiptonReduction]: Checked pairs total: 7684 [2023-08-31 23:45:19,074 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-08-31 23:45:19,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 23:45:19,091 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;@18e491b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 23:45:19,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-31 23:45:19,093 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 23:45:19,093 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:45:19,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:19,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 23:45:19,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:19,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:19,098 INFO L85 PathProgramCache]: Analyzing trace with hash 629, now seen corresponding path program 1 times [2023-08-31 23:45:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:19,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274417511] [2023-08-31 23:45:19,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:19,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:19,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274417511] [2023-08-31 23:45:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274417511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:19,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:19,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 23:45:19,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236054833] [2023-08-31 23:45:19,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:19,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 23:45:19,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 23:45:19,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 23:45:19,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 239 [2023-08-31 23:45:19,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 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) [2023-08-31 23:45:19,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:19,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 239 [2023-08-31 23:45:19,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:20,202 INFO L130 PetriNetUnfolder]: 3035/4369 cut-off events. [2023-08-31 23:45:20,203 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-31 23:45:20,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8812 conditions, 4369 events. 3035/4369 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 20579 event pairs, 3035 based on Foata normal form. 0/3767 useless extension candidates. Maximal degree in co-relation 8801. Up to 4367 conditions per place. [2023-08-31 23:45:20,232 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 26 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-31 23:45:20,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 115 flow [2023-08-31 23:45:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 23:45:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 23:45:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 240 transitions. [2023-08-31 23:45:20,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.502092050209205 [2023-08-31 23:45:20,249 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 240 transitions. [2023-08-31 23:45:20,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 240 transitions. [2023-08-31 23:45:20,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:20,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 240 transitions. [2023-08-31 23:45:20,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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) [2023-08-31 23:45:20,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2023-08-31 23:45:20,264 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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) [2023-08-31 23:45:20,265 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 2 states and 240 transitions. [2023-08-31 23:45:20,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 115 flow [2023-08-31 23:45:20,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 23:45:20,270 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 60 flow [2023-08-31 23:45:20,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2023-08-31 23:45:20,276 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -8 predicate places. [2023-08-31 23:45:20,277 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 60 flow [2023-08-31 23:45:20,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 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) [2023-08-31 23:45:20,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:20,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:20,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 23:45:20,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:20,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2134733207, now seen corresponding path program 1 times [2023-08-31 23:45:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:20,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525151696] [2023-08-31 23:45:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:20,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:20,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:20,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525151696] [2023-08-31 23:45:20,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525151696] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:20,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:20,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 23:45:20,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107710123] [2023-08-31 23:45:20,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:20,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 23:45:20,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 23:45:20,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 23:45:20,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 239 [2023-08-31 23:45:20,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2023-08-31 23:45:20,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:20,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 239 [2023-08-31 23:45:20,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:21,334 INFO L130 PetriNetUnfolder]: 2591/3745 cut-off events. [2023-08-31 23:45:21,334 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:45:21,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7562 conditions, 3745 events. 2591/3745 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 18077 event pairs, 371 based on Foata normal form. 0/3383 useless extension candidates. Maximal degree in co-relation 7559. Up to 3121 conditions per place. [2023-08-31 23:45:21,351 INFO L137 encePairwiseOnDemand]: 236/239 looper letters, 35 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2023-08-31 23:45:21,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 164 flow [2023-08-31 23:45:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 23:45:21,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 23:45:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-08-31 23:45:21,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48675034867503486 [2023-08-31 23:45:21,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-08-31 23:45:21,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-08-31 23:45:21,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:21,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-08-31 23:45:21,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:21,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-08-31 23:45:21,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-08-31 23:45:21,359 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 60 flow. Second operand 3 states and 349 transitions. [2023-08-31 23:45:21,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 164 flow [2023-08-31 23:45:21,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 23:45:21,361 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 60 flow [2023-08-31 23:45:21,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-08-31 23:45:21,362 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-31 23:45:21,362 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 60 flow [2023-08-31 23:45:21,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2023-08-31 23:45:21,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:21,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:21,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 23:45:21,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:21,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:21,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1515723353, now seen corresponding path program 1 times [2023-08-31 23:45:21,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:21,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477109233] [2023-08-31 23:45:21,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:21,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:21,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:21,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:21,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477109233] [2023-08-31 23:45:21,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477109233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:21,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:21,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 23:45:21,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040263475] [2023-08-31 23:45:21,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:21,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 23:45:21,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:21,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 23:45:21,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 23:45:21,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 239 [2023-08-31 23:45:21,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2023-08-31 23:45:21,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:21,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 239 [2023-08-31 23:45:21,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:22,390 INFO L130 PetriNetUnfolder]: 1910/2794 cut-off events. [2023-08-31 23:45:22,390 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-08-31 23:45:22,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5782 conditions, 2794 events. 1910/2794 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12427 event pairs, 905 based on Foata normal form. 0/2702 useless extension candidates. Maximal degree in co-relation 5778. Up to 1516 conditions per place. [2023-08-31 23:45:22,406 INFO L137 encePairwiseOnDemand]: 236/239 looper letters, 34 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-31 23:45:22,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 156 flow [2023-08-31 23:45:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 23:45:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 23:45:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-08-31 23:45:22,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825662482566248 [2023-08-31 23:45:22,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-08-31 23:45:22,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-08-31 23:45:22,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:22,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-08-31 23:45:22,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:22,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-08-31 23:45:22,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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) [2023-08-31 23:45:22,413 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 60 flow. Second operand 3 states and 346 transitions. [2023-08-31 23:45:22,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 156 flow [2023-08-31 23:45:22,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 23:45:22,416 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 64 flow [2023-08-31 23:45:22,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-08-31 23:45:22,417 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-31 23:45:22,417 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 64 flow [2023-08-31 23:45:22,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2023-08-31 23:45:22,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:22,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:22,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 23:45:22,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:22,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1515723345, now seen corresponding path program 1 times [2023-08-31 23:45:22,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:22,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795586807] [2023-08-31 23:45:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:22,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:22,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:22,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795586807] [2023-08-31 23:45:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795586807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:22,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:22,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:45:22,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584303972] [2023-08-31 23:45:22,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:22,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:45:22,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:22,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:45:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:45:22,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 239 [2023-08-31 23:45:22,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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) [2023-08-31 23:45:22,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:22,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 239 [2023-08-31 23:45:22,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:23,248 INFO L130 PetriNetUnfolder]: 1466/2168 cut-off events. [2023-08-31 23:45:23,248 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-08-31 23:45:23,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4683 conditions, 2168 events. 1466/2168 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9640 event pairs, 360 based on Foata normal form. 180/2348 useless extension candidates. Maximal degree in co-relation 4678. Up to 2098 conditions per place. [2023-08-31 23:45:23,262 INFO L137 encePairwiseOnDemand]: 235/239 looper letters, 33 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-08-31 23:45:23,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 160 flow [2023-08-31 23:45:23,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:45:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:45:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2023-08-31 23:45:23,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40753138075313805 [2023-08-31 23:45:23,265 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2023-08-31 23:45:23,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2023-08-31 23:45:23,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:23,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2023-08-31 23:45:23,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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) [2023-08-31 23:45:23,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-08-31 23:45:23,270 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-08-31 23:45:23,270 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 64 flow. Second operand 5 states and 487 transitions. [2023-08-31 23:45:23,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 160 flow [2023-08-31 23:45:23,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 23:45:23,274 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 64 flow [2023-08-31 23:45:23,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2023-08-31 23:45:23,275 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2023-08-31 23:45:23,275 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 64 flow [2023-08-31 23:45:23,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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) [2023-08-31 23:45:23,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:23,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:23,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 23:45:23,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:23,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:23,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1945861122, now seen corresponding path program 1 times [2023-08-31 23:45:23,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:23,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273011613] [2023-08-31 23:45:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:23,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:24,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:24,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273011613] [2023-08-31 23:45:24,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273011613] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:24,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:24,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:45:24,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009200458] [2023-08-31 23:45:24,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:24,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:45:24,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:45:24,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:45:24,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:24,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2023-08-31 23:45:24,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:24,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:24,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:24,763 INFO L130 PetriNetUnfolder]: 2017/2971 cut-off events. [2023-08-31 23:45:24,763 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-31 23:45:24,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6308 conditions, 2971 events. 2017/2971 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 14077 event pairs, 1135 based on Foata normal form. 30/2999 useless extension candidates. Maximal degree in co-relation 6303. Up to 2320 conditions per place. [2023-08-31 23:45:24,781 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 34 selfloop transitions, 14 changer transitions 0/49 dead transitions. [2023-08-31 23:45:24,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 211 flow [2023-08-31 23:45:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:45:24,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:45:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 539 transitions. [2023-08-31 23:45:24,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4510460251046025 [2023-08-31 23:45:24,784 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 539 transitions. [2023-08-31 23:45:24,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 539 transitions. [2023-08-31 23:45:24,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:24,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 539 transitions. [2023-08-31 23:45:24,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 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) [2023-08-31 23:45:24,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-08-31 23:45:24,789 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-08-31 23:45:24,789 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 64 flow. Second operand 5 states and 539 transitions. [2023-08-31 23:45:24,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 211 flow [2023-08-31 23:45:24,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 23:45:24,791 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 143 flow [2023-08-31 23:45:24,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-08-31 23:45:24,794 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-31 23:45:24,794 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 143 flow [2023-08-31 23:45:24,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2023-08-31 23:45:24,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:24,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:24,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 23:45:24,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:24,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:24,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1526403136, now seen corresponding path program 1 times [2023-08-31 23:45:24,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:24,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564125450] [2023-08-31 23:45:24,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:24,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:25,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:25,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564125450] [2023-08-31 23:45:25,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564125450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:25,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:25,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 23:45:25,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365401143] [2023-08-31 23:45:25,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:25,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 23:45:25,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:25,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 23:45:25,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 23:45:25,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:25,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:25,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:25,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:25,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:25,674 INFO L130 PetriNetUnfolder]: 1538/2418 cut-off events. [2023-08-31 23:45:25,674 INFO L131 PetriNetUnfolder]: For 1054/1054 co-relation queries the response was YES. [2023-08-31 23:45:25,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6790 conditions, 2418 events. 1538/2418 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 11987 event pairs, 455 based on Foata normal form. 262/2678 useless extension candidates. Maximal degree in co-relation 6783. Up to 998 conditions per place. [2023-08-31 23:45:25,688 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 86 selfloop transitions, 5 changer transitions 1/93 dead transitions. [2023-08-31 23:45:25,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 93 transitions, 560 flow [2023-08-31 23:45:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 23:45:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 23:45:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2023-08-31 23:45:25,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4707112970711297 [2023-08-31 23:45:25,691 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2023-08-31 23:45:25,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2023-08-31 23:45:25,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:25,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2023-08-31 23:45:25,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:25,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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) [2023-08-31 23:45:25,694 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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) [2023-08-31 23:45:25,694 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 143 flow. Second operand 4 states and 450 transitions. [2023-08-31 23:45:25,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 93 transitions, 560 flow [2023-08-31 23:45:25,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 93 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 23:45:25,698 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 176 flow [2023-08-31 23:45:25,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2023-08-31 23:45:25,699 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2023-08-31 23:45:25,699 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 176 flow [2023-08-31 23:45:25,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:25,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:25,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:25,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 23:45:25,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:25,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:25,701 INFO L85 PathProgramCache]: Analyzing trace with hash -122170709, now seen corresponding path program 1 times [2023-08-31 23:45:25,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:25,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511680814] [2023-08-31 23:45:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:26,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:26,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511680814] [2023-08-31 23:45:26,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511680814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:26,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:26,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 23:45:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876109008] [2023-08-31 23:45:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:26,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 23:45:26,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 23:45:26,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-31 23:45:26,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 239 [2023-08-31 23:45:26,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2023-08-31 23:45:26,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:26,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 239 [2023-08-31 23:45:26,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:27,514 INFO L130 PetriNetUnfolder]: 1362/2243 cut-off events. [2023-08-31 23:45:27,514 INFO L131 PetriNetUnfolder]: For 1579/1579 co-relation queries the response was YES. [2023-08-31 23:45:27,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7393 conditions, 2243 events. 1362/2243 cut-off events. For 1579/1579 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11733 event pairs, 100 based on Foata normal form. 50/2293 useless extension candidates. Maximal degree in co-relation 7384. Up to 999 conditions per place. [2023-08-31 23:45:27,530 INFO L137 encePairwiseOnDemand]: 227/239 looper letters, 84 selfloop transitions, 16 changer transitions 9/110 dead transitions. [2023-08-31 23:45:27,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 110 transitions, 712 flow [2023-08-31 23:45:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:45:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:45:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 779 transitions. [2023-08-31 23:45:27,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656306037059175 [2023-08-31 23:45:27,534 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 779 transitions. [2023-08-31 23:45:27,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 779 transitions. [2023-08-31 23:45:27,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:27,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 779 transitions. [2023-08-31 23:45:27,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.28571428571429) internal successors, (779), 7 states have internal predecessors, (779), 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) [2023-08-31 23:45:27,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:27,539 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:27,539 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 176 flow. Second operand 7 states and 779 transitions. [2023-08-31 23:45:27,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 110 transitions, 712 flow [2023-08-31 23:45:27,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 110 transitions, 674 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-31 23:45:27,546 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 321 flow [2023-08-31 23:45:27,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=321, PETRI_PLACES=52, PETRI_TRANSITIONS=53} [2023-08-31 23:45:27,547 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2023-08-31 23:45:27,547 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 321 flow [2023-08-31 23:45:27,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2023-08-31 23:45:27,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:27,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:27,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 23:45:27,548 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:27,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:27,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1950847983, now seen corresponding path program 1 times [2023-08-31 23:45:27,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:27,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992219362] [2023-08-31 23:45:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:27,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:27,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:27,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992219362] [2023-08-31 23:45:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992219362] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:27,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:27,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 23:45:27,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466679281] [2023-08-31 23:45:27,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:27,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 23:45:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:27,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 23:45:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 23:45:27,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:27,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-08-31 23:45:27,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:27,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:27,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:28,364 INFO L130 PetriNetUnfolder]: 931/1606 cut-off events. [2023-08-31 23:45:28,364 INFO L131 PetriNetUnfolder]: For 2058/2058 co-relation queries the response was YES. [2023-08-31 23:45:28,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5511 conditions, 1606 events. 931/1606 cut-off events. For 2058/2058 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8251 event pairs, 188 based on Foata normal form. 164/1768 useless extension candidates. Maximal degree in co-relation 5499. Up to 728 conditions per place. [2023-08-31 23:45:28,373 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 92 selfloop transitions, 8 changer transitions 7/108 dead transitions. [2023-08-31 23:45:28,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 108 transitions, 819 flow [2023-08-31 23:45:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 23:45:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 23:45:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 564 transitions. [2023-08-31 23:45:28,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4719665271966527 [2023-08-31 23:45:28,376 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 564 transitions. [2023-08-31 23:45:28,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 564 transitions. [2023-08-31 23:45:28,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:28,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 564 transitions. [2023-08-31 23:45:28,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:28,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-08-31 23:45:28,380 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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) [2023-08-31 23:45:28,380 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 321 flow. Second operand 5 states and 564 transitions. [2023-08-31 23:45:28,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 108 transitions, 819 flow [2023-08-31 23:45:28,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 108 transitions, 797 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-31 23:45:28,388 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 292 flow [2023-08-31 23:45:28,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2023-08-31 23:45:28,390 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2023-08-31 23:45:28,391 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 292 flow [2023-08-31 23:45:28,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-08-31 23:45:28,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:28,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:28,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 23:45:28,392 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:28,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:28,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2079342902, now seen corresponding path program 1 times [2023-08-31 23:45:28,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:28,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700799141] [2023-08-31 23:45:28,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:28,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:30,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:30,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700799141] [2023-08-31 23:45:30,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700799141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:30,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:30,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 23:45:30,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220973856] [2023-08-31 23:45:30,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:30,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 23:45:30,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:30,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 23:45:30,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 23:45:30,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:30,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 292 flow. Second operand has 10 states, 10 states have (on average 99.8) internal successors, (998), 10 states have internal predecessors, (998), 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) [2023-08-31 23:45:30,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:30,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:30,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:31,000 INFO L130 PetriNetUnfolder]: 897/1629 cut-off events. [2023-08-31 23:45:31,000 INFO L131 PetriNetUnfolder]: For 2733/2733 co-relation queries the response was YES. [2023-08-31 23:45:31,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6220 conditions, 1629 events. 897/1629 cut-off events. For 2733/2733 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8736 event pairs, 55 based on Foata normal form. 10/1639 useless extension candidates. Maximal degree in co-relation 6206. Up to 854 conditions per place. [2023-08-31 23:45:31,014 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 67 selfloop transitions, 23 changer transitions 16/107 dead transitions. [2023-08-31 23:45:31,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 107 transitions, 852 flow [2023-08-31 23:45:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:45:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:45:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 764 transitions. [2023-08-31 23:45:31,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.456664674237896 [2023-08-31 23:45:31,018 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 764 transitions. [2023-08-31 23:45:31,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 764 transitions. [2023-08-31 23:45:31,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:31,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 764 transitions. [2023-08-31 23:45:31,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 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) [2023-08-31 23:45:31,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:31,025 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:31,025 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 292 flow. Second operand 7 states and 764 transitions. [2023-08-31 23:45:31,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 107 transitions, 852 flow [2023-08-31 23:45:31,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 107 transitions, 774 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-31 23:45:31,041 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 398 flow [2023-08-31 23:45:31,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=398, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2023-08-31 23:45:31,042 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2023-08-31 23:45:31,043 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 398 flow [2023-08-31 23:45:31,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.8) internal successors, (998), 10 states have internal predecessors, (998), 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) [2023-08-31 23:45:31,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:31,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:31,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 23:45:31,044 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:31,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:31,044 INFO L85 PathProgramCache]: Analyzing trace with hash 89915190, now seen corresponding path program 2 times [2023-08-31 23:45:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:31,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181596938] [2023-08-31 23:45:31,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:31,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:33,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181596938] [2023-08-31 23:45:33,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181596938] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:33,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 23:45:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40901426] [2023-08-31 23:45:33,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:33,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 23:45:33,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:33,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 23:45:33,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-31 23:45:33,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-31 23:45:33,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 398 flow. Second operand has 10 states, 10 states have (on average 98.8) internal successors, (988), 10 states have internal predecessors, (988), 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) [2023-08-31 23:45:33,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:33,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-31 23:45:33,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:33,933 INFO L130 PetriNetUnfolder]: 869/1588 cut-off events. [2023-08-31 23:45:33,934 INFO L131 PetriNetUnfolder]: For 3554/3554 co-relation queries the response was YES. [2023-08-31 23:45:33,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6454 conditions, 1588 events. 869/1588 cut-off events. For 3554/3554 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8669 event pairs, 193 based on Foata normal form. 10/1596 useless extension candidates. Maximal degree in co-relation 6438. Up to 599 conditions per place. [2023-08-31 23:45:33,943 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 65 selfloop transitions, 22 changer transitions 30/118 dead transitions. [2023-08-31 23:45:33,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 118 transitions, 1015 flow [2023-08-31 23:45:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 23:45:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 23:45:33,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2023-08-31 23:45:33,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4560669456066946 [2023-08-31 23:45:33,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2023-08-31 23:45:33,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2023-08-31 23:45:33,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:33,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2023-08-31 23:45:33,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-08-31 23:45:33,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-08-31 23:45:33,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-08-31 23:45:33,952 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 398 flow. Second operand 6 states and 654 transitions. [2023-08-31 23:45:33,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 118 transitions, 1015 flow [2023-08-31 23:45:33,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 118 transitions, 958 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 23:45:33,959 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 458 flow [2023-08-31 23:45:33,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=458, PETRI_PLACES=64, PETRI_TRANSITIONS=59} [2023-08-31 23:45:33,960 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2023-08-31 23:45:33,960 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 458 flow [2023-08-31 23:45:33,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.8) internal successors, (988), 10 states have internal predecessors, (988), 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) [2023-08-31 23:45:33,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:33,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:33,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 23:45:33,962 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:33,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:33,962 INFO L85 PathProgramCache]: Analyzing trace with hash -610830992, now seen corresponding path program 1 times [2023-08-31 23:45:33,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:33,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689017357] [2023-08-31 23:45:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:33,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:36,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:36,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689017357] [2023-08-31 23:45:36,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689017357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:36,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:36,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 23:45:36,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518259465] [2023-08-31 23:45:36,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:36,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 23:45:36,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:36,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 23:45:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-31 23:45:36,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:36,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 458 flow. Second operand has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 9 states have internal predecessors, (901), 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) [2023-08-31 23:45:36,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:36,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:36,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:37,548 INFO L130 PetriNetUnfolder]: 811/1517 cut-off events. [2023-08-31 23:45:37,548 INFO L131 PetriNetUnfolder]: For 4385/4385 co-relation queries the response was YES. [2023-08-31 23:45:37,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6649 conditions, 1517 events. 811/1517 cut-off events. For 4385/4385 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8301 event pairs, 220 based on Foata normal form. 11/1527 useless extension candidates. Maximal degree in co-relation 6631. Up to 595 conditions per place. [2023-08-31 23:45:37,559 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 79 selfloop transitions, 40 changer transitions 25/145 dead transitions. [2023-08-31 23:45:37,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 145 transitions, 1282 flow [2023-08-31 23:45:37,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 23:45:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 23:45:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 880 transitions. [2023-08-31 23:45:37,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4602510460251046 [2023-08-31 23:45:37,563 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 880 transitions. [2023-08-31 23:45:37,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 880 transitions. [2023-08-31 23:45:37,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:37,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 880 transitions. [2023-08-31 23:45:37,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 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) [2023-08-31 23:45:37,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 239.0) internal successors, (2151), 9 states have internal predecessors, (2151), 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) [2023-08-31 23:45:37,568 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 239.0) internal successors, (2151), 9 states have internal predecessors, (2151), 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) [2023-08-31 23:45:37,569 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 458 flow. Second operand 8 states and 880 transitions. [2023-08-31 23:45:37,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 145 transitions, 1282 flow [2023-08-31 23:45:37,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 145 transitions, 1207 flow, removed 24 selfloop flow, removed 2 redundant places. [2023-08-31 23:45:37,587 INFO L231 Difference]: Finished difference. Result has 72 places, 84 transitions, 755 flow [2023-08-31 23:45:37,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=755, PETRI_PLACES=72, PETRI_TRANSITIONS=84} [2023-08-31 23:45:37,588 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 29 predicate places. [2023-08-31 23:45:37,588 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 84 transitions, 755 flow [2023-08-31 23:45:37,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 9 states have internal predecessors, (901), 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) [2023-08-31 23:45:37,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:37,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:37,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 23:45:37,589 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:37,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1364033562, now seen corresponding path program 3 times [2023-08-31 23:45:37,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:37,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613674111] [2023-08-31 23:45:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:37,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:37,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:37,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613674111] [2023-08-31 23:45:37,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613674111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:37,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:37,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 23:45:37,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502433558] [2023-08-31 23:45:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:37,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 23:45:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:37,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 23:45:37,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-31 23:45:37,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:37,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 84 transitions, 755 flow. Second operand has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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) [2023-08-31 23:45:37,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:37,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:37,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:38,339 INFO L130 PetriNetUnfolder]: 680/1266 cut-off events. [2023-08-31 23:45:38,340 INFO L131 PetriNetUnfolder]: For 4991/4991 co-relation queries the response was YES. [2023-08-31 23:45:38,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6085 conditions, 1266 events. 680/1266 cut-off events. For 4991/4991 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6879 event pairs, 134 based on Foata normal form. 36/1301 useless extension candidates. Maximal degree in co-relation 6064. Up to 614 conditions per place. [2023-08-31 23:45:38,349 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 142 selfloop transitions, 11 changer transitions 14/168 dead transitions. [2023-08-31 23:45:38,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1841 flow [2023-08-31 23:45:38,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 23:45:38,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 23:45:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2023-08-31 23:45:38,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45188284518828453 [2023-08-31 23:45:38,352 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 648 transitions. [2023-08-31 23:45:38,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 648 transitions. [2023-08-31 23:45:38,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:38,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 648 transitions. [2023-08-31 23:45:38,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 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) [2023-08-31 23:45:38,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-08-31 23:45:38,357 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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) [2023-08-31 23:45:38,357 INFO L175 Difference]: Start difference. First operand has 72 places, 84 transitions, 755 flow. Second operand 6 states and 648 transitions. [2023-08-31 23:45:38,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1841 flow [2023-08-31 23:45:38,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 168 transitions, 1594 flow, removed 95 selfloop flow, removed 5 redundant places. [2023-08-31 23:45:38,375 INFO L231 Difference]: Finished difference. Result has 74 places, 84 transitions, 669 flow [2023-08-31 23:45:38,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=669, PETRI_PLACES=74, PETRI_TRANSITIONS=84} [2023-08-31 23:45:38,375 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2023-08-31 23:45:38,376 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 84 transitions, 669 flow [2023-08-31 23:45:38,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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) [2023-08-31 23:45:38,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:38,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:38,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 23:45:38,377 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:38,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash -636215637, now seen corresponding path program 1 times [2023-08-31 23:45:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848537206] [2023-08-31 23:45:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:38,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:39,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:39,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848537206] [2023-08-31 23:45:39,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848537206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:39,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 23:45:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501423912] [2023-08-31 23:45:39,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:39,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 23:45:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:39,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 23:45:39,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-31 23:45:39,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 239 [2023-08-31 23:45:39,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 84 transitions, 669 flow. Second operand has 8 states, 8 states have (on average 102.875) internal successors, (823), 8 states have internal predecessors, (823), 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) [2023-08-31 23:45:39,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:39,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 239 [2023-08-31 23:45:39,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:40,425 INFO L130 PetriNetUnfolder]: 901/1694 cut-off events. [2023-08-31 23:45:40,425 INFO L131 PetriNetUnfolder]: For 5898/5898 co-relation queries the response was YES. [2023-08-31 23:45:40,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7925 conditions, 1694 events. 901/1694 cut-off events. For 5898/5898 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 10015 event pairs, 119 based on Foata normal form. 1/1695 useless extension candidates. Maximal degree in co-relation 7904. Up to 895 conditions per place. [2023-08-31 23:45:40,437 INFO L137 encePairwiseOnDemand]: 231/239 looper letters, 91 selfloop transitions, 9 changer transitions 62/163 dead transitions. [2023-08-31 23:45:40,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 163 transitions, 1585 flow [2023-08-31 23:45:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 23:45:40,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 23:45:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 877 transitions. [2023-08-31 23:45:40,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45868200836820083 [2023-08-31 23:45:40,440 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 877 transitions. [2023-08-31 23:45:40,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 877 transitions. [2023-08-31 23:45:40,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:40,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 877 transitions. [2023-08-31 23:45:40,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.625) internal successors, (877), 8 states have internal predecessors, (877), 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) [2023-08-31 23:45:40,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 239.0) internal successors, (2151), 9 states have internal predecessors, (2151), 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) [2023-08-31 23:45:40,446 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 239.0) internal successors, (2151), 9 states have internal predecessors, (2151), 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) [2023-08-31 23:45:40,446 INFO L175 Difference]: Start difference. First operand has 74 places, 84 transitions, 669 flow. Second operand 8 states and 877 transitions. [2023-08-31 23:45:40,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 163 transitions, 1585 flow [2023-08-31 23:45:40,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 163 transitions, 1371 flow, removed 25 selfloop flow, removed 11 redundant places. [2023-08-31 23:45:40,466 INFO L231 Difference]: Finished difference. Result has 74 places, 86 transitions, 642 flow [2023-08-31 23:45:40,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=642, PETRI_PLACES=74, PETRI_TRANSITIONS=86} [2023-08-31 23:45:40,467 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2023-08-31 23:45:40,467 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 86 transitions, 642 flow [2023-08-31 23:45:40,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 102.875) internal successors, (823), 8 states have internal predecessors, (823), 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) [2023-08-31 23:45:40,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:40,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:40,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 23:45:40,469 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:40,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:40,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2016160829, now seen corresponding path program 2 times [2023-08-31 23:45:40,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:40,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045604349] [2023-08-31 23:45:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:40,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:41,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:41,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045604349] [2023-08-31 23:45:41,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045604349] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:41,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:41,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 23:45:41,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353358014] [2023-08-31 23:45:41,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:41,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 23:45:41,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:41,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 23:45:41,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-31 23:45:41,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-31 23:45:41,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 642 flow. Second operand has 9 states, 9 states have (on average 99.66666666666667) internal successors, (897), 9 states have internal predecessors, (897), 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) [2023-08-31 23:45:41,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:41,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-31 23:45:41,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:41,718 INFO L130 PetriNetUnfolder]: 1027/1878 cut-off events. [2023-08-31 23:45:41,718 INFO L131 PetriNetUnfolder]: For 5843/5843 co-relation queries the response was YES. [2023-08-31 23:45:41,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7995 conditions, 1878 events. 1027/1878 cut-off events. For 5843/5843 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10845 event pairs, 220 based on Foata normal form. 2/1880 useless extension candidates. Maximal degree in co-relation 7976. Up to 1005 conditions per place. [2023-08-31 23:45:41,729 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 69 selfloop transitions, 2 changer transitions 115/186 dead transitions. [2023-08-31 23:45:41,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 186 transitions, 1706 flow [2023-08-31 23:45:41,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:45:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:45:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 748 transitions. [2023-08-31 23:45:41,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44710101613867304 [2023-08-31 23:45:41,734 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 748 transitions. [2023-08-31 23:45:41,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 748 transitions. [2023-08-31 23:45:41,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:41,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 748 transitions. [2023-08-31 23:45:41,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 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) [2023-08-31 23:45:41,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:41,740 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:41,741 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 642 flow. Second operand 7 states and 748 transitions. [2023-08-31 23:45:41,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 186 transitions, 1706 flow [2023-08-31 23:45:41,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 186 transitions, 1655 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-08-31 23:45:41,757 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 406 flow [2023-08-31 23:45:41,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2023-08-31 23:45:41,759 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 33 predicate places. [2023-08-31 23:45:41,759 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 406 flow [2023-08-31 23:45:41,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.66666666666667) internal successors, (897), 9 states have internal predecessors, (897), 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) [2023-08-31 23:45:41,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:41,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:41,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 23:45:41,760 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:41,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash -511570713, now seen corresponding path program 3 times [2023-08-31 23:45:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:41,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273893820] [2023-08-31 23:45:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:41,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:43,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:43,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273893820] [2023-08-31 23:45:43,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273893820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:43,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:43,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 23:45:43,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706560579] [2023-08-31 23:45:43,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:43,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 23:45:43,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:43,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 23:45:43,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-31 23:45:43,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:43,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 406 flow. Second operand has 9 states, 9 states have (on average 100.55555555555556) internal successors, (905), 9 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:43,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:43,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:43,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:43,573 INFO L130 PetriNetUnfolder]: 489/971 cut-off events. [2023-08-31 23:45:43,574 INFO L131 PetriNetUnfolder]: For 3148/3148 co-relation queries the response was YES. [2023-08-31 23:45:43,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 971 events. 489/971 cut-off events. For 3148/3148 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5102 event pairs, 105 based on Foata normal form. 1/971 useless extension candidates. Maximal degree in co-relation 4262. Up to 583 conditions per place. [2023-08-31 23:45:43,580 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 61 selfloop transitions, 6 changer transitions 33/101 dead transitions. [2023-08-31 23:45:43,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 101 transitions, 862 flow [2023-08-31 23:45:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 23:45:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 23:45:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 750 transitions. [2023-08-31 23:45:43,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482964734010759 [2023-08-31 23:45:43,583 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 750 transitions. [2023-08-31 23:45:43,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 750 transitions. [2023-08-31 23:45:43,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:43,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 750 transitions. [2023-08-31 23:45:43,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 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) [2023-08-31 23:45:43,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:43,588 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 239.0) internal successors, (1912), 8 states have internal predecessors, (1912), 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) [2023-08-31 23:45:43,588 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 406 flow. Second operand 7 states and 750 transitions. [2023-08-31 23:45:43,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 101 transitions, 862 flow [2023-08-31 23:45:43,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 101 transitions, 827 flow, removed 9 selfloop flow, removed 7 redundant places. [2023-08-31 23:45:43,597 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 396 flow [2023-08-31 23:45:43,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=396, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2023-08-31 23:45:43,597 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 32 predicate places. [2023-08-31 23:45:43,597 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 396 flow [2023-08-31 23:45:43,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.55555555555556) internal successors, (905), 9 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:43,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:43,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:43,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 23:45:43,599 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:43,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:43,599 INFO L85 PathProgramCache]: Analyzing trace with hash 456049071, now seen corresponding path program 4 times [2023-08-31 23:45:43,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:43,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966664099] [2023-08-31 23:45:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:43,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:44,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:44,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966664099] [2023-08-31 23:45:44,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966664099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:44,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:44,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 23:45:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575922689] [2023-08-31 23:45:44,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:44,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 23:45:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:44,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 23:45:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-31 23:45:44,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-31 23:45:44,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 58 transitions, 396 flow. Second operand has 8 states, 8 states have (on average 99.875) internal successors, (799), 8 states have internal predecessors, (799), 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) [2023-08-31 23:45:44,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:44,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-31 23:45:44,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:44,966 INFO L130 PetriNetUnfolder]: 497/995 cut-off events. [2023-08-31 23:45:44,967 INFO L131 PetriNetUnfolder]: For 3353/3353 co-relation queries the response was YES. [2023-08-31 23:45:44,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4393 conditions, 995 events. 497/995 cut-off events. For 3353/3353 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5271 event pairs, 201 based on Foata normal form. 1/992 useless extension candidates. Maximal degree in co-relation 4373. Up to 659 conditions per place. [2023-08-31 23:45:44,973 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 47 selfloop transitions, 16 changer transitions 42/106 dead transitions. [2023-08-31 23:45:44,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 106 transitions, 893 flow [2023-08-31 23:45:44,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 23:45:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 23:45:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 942 transitions. [2023-08-31 23:45:44,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43793584379358436 [2023-08-31 23:45:44,976 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 942 transitions. [2023-08-31 23:45:44,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 942 transitions. [2023-08-31 23:45:44,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:44,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 942 transitions. [2023-08-31 23:45:44,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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) [2023-08-31 23:45:44,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 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) [2023-08-31 23:45:44,983 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 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) [2023-08-31 23:45:44,983 INFO L175 Difference]: Start difference. First operand has 75 places, 58 transitions, 396 flow. Second operand 9 states and 942 transitions. [2023-08-31 23:45:44,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 106 transitions, 893 flow [2023-08-31 23:45:44,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 106 transitions, 880 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-31 23:45:44,991 INFO L231 Difference]: Finished difference. Result has 80 places, 59 transitions, 454 flow [2023-08-31 23:45:44,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=80, PETRI_TRANSITIONS=59} [2023-08-31 23:45:44,992 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2023-08-31 23:45:44,993 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 59 transitions, 454 flow [2023-08-31 23:45:44,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 99.875) internal successors, (799), 8 states have internal predecessors, (799), 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) [2023-08-31 23:45:44,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:44,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:44,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 23:45:44,994 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:44,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash 494684339, now seen corresponding path program 5 times [2023-08-31 23:45:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957356138] [2023-08-31 23:45:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:44,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:46,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:46,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957356138] [2023-08-31 23:45:46,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957356138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:46,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:46,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 23:45:46,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128523826] [2023-08-31 23:45:46,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:46,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 23:45:46,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:46,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 23:45:46,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-31 23:45:46,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:46,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 59 transitions, 454 flow. Second operand has 9 states, 9 states have (on average 100.55555555555556) internal successors, (905), 9 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:46,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:46,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:46,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:46,834 INFO L130 PetriNetUnfolder]: 402/830 cut-off events. [2023-08-31 23:45:46,834 INFO L131 PetriNetUnfolder]: For 4055/4055 co-relation queries the response was YES. [2023-08-31 23:45:46,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4106 conditions, 830 events. 402/830 cut-off events. For 4055/4055 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4265 event pairs, 164 based on Foata normal form. 1/825 useless extension candidates. Maximal degree in co-relation 4084. Up to 362 conditions per place. [2023-08-31 23:45:46,840 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 47 selfloop transitions, 16 changer transitions 47/111 dead transitions. [2023-08-31 23:45:46,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 1012 flow [2023-08-31 23:45:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 23:45:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 23:45:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 956 transitions. [2023-08-31 23:45:46,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-31 23:45:46,844 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 956 transitions. [2023-08-31 23:45:46,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 956 transitions. [2023-08-31 23:45:46,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:46,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 956 transitions. [2023-08-31 23:45:46,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 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) [2023-08-31 23:45:46,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 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) [2023-08-31 23:45:46,851 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 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) [2023-08-31 23:45:46,851 INFO L175 Difference]: Start difference. First operand has 80 places, 59 transitions, 454 flow. Second operand 9 states and 956 transitions. [2023-08-31 23:45:46,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 1012 flow [2023-08-31 23:45:46,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 111 transitions, 950 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-31 23:45:46,862 INFO L231 Difference]: Finished difference. Result has 84 places, 58 transitions, 456 flow [2023-08-31 23:45:46,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=456, PETRI_PLACES=84, PETRI_TRANSITIONS=58} [2023-08-31 23:45:46,863 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2023-08-31 23:45:46,863 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 58 transitions, 456 flow [2023-08-31 23:45:46,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.55555555555556) internal successors, (905), 9 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 23:45:46,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:46,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:46,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 23:45:46,864 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:46,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:46,865 INFO L85 PathProgramCache]: Analyzing trace with hash 629399099, now seen corresponding path program 6 times [2023-08-31 23:45:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:46,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386701657] [2023-08-31 23:45:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:46,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:48,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386701657] [2023-08-31 23:45:48,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386701657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:48,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:48,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 23:45:48,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969320508] [2023-08-31 23:45:48,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:48,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 23:45:48,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:48,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 23:45:48,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-31 23:45:48,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-31 23:45:48,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 58 transitions, 456 flow. Second operand has 9 states, 9 states have (on average 99.55555555555556) internal successors, (896), 9 states have internal predecessors, (896), 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) [2023-08-31 23:45:48,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:48,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-31 23:45:48,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:48,475 INFO L130 PetriNetUnfolder]: 395/821 cut-off events. [2023-08-31 23:45:48,475 INFO L131 PetriNetUnfolder]: For 5070/5070 co-relation queries the response was YES. [2023-08-31 23:45:48,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4235 conditions, 821 events. 395/821 cut-off events. For 5070/5070 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4249 event pairs, 142 based on Foata normal form. 1/819 useless extension candidates. Maximal degree in co-relation 4210. Up to 479 conditions per place. [2023-08-31 23:45:48,481 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 57 selfloop transitions, 17 changer transitions 24/99 dead transitions. [2023-08-31 23:45:48,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 99 transitions, 946 flow [2023-08-31 23:45:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 23:45:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 23:45:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 837 transitions. [2023-08-31 23:45:48,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4377615062761506 [2023-08-31 23:45:48,485 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 837 transitions. [2023-08-31 23:45:48,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 837 transitions. [2023-08-31 23:45:48,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:48,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 837 transitions. [2023-08-31 23:45:48,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 104.625) internal successors, (837), 8 states have internal predecessors, (837), 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) [2023-08-31 23:45:48,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 239.0) internal successors, (2151), 9 states have internal predecessors, (2151), 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) [2023-08-31 23:45:48,490 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 239.0) internal successors, (2151), 9 states have internal predecessors, (2151), 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) [2023-08-31 23:45:48,490 INFO L175 Difference]: Start difference. First operand has 84 places, 58 transitions, 456 flow. Second operand 8 states and 837 transitions. [2023-08-31 23:45:48,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 99 transitions, 946 flow [2023-08-31 23:45:48,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 99 transitions, 893 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-31 23:45:48,501 INFO L231 Difference]: Finished difference. Result has 84 places, 61 transitions, 515 flow [2023-08-31 23:45:48,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=515, PETRI_PLACES=84, PETRI_TRANSITIONS=61} [2023-08-31 23:45:48,502 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2023-08-31 23:45:48,502 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 61 transitions, 515 flow [2023-08-31 23:45:48,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.55555555555556) internal successors, (896), 9 states have internal predecessors, (896), 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) [2023-08-31 23:45:48,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:48,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:48,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 23:45:48,503 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:48,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:48,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1235175371, now seen corresponding path program 7 times [2023-08-31 23:45:48,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:48,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245384693] [2023-08-31 23:45:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:48,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:50,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:50,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245384693] [2023-08-31 23:45:50,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245384693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:50,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:50,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 23:45:50,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315592264] [2023-08-31 23:45:50,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:50,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 23:45:50,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:50,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 23:45:50,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 23:45:50,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-31 23:45:50,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 61 transitions, 515 flow. Second operand has 10 states, 10 states have (on average 99.3) internal successors, (993), 10 states have internal predecessors, (993), 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) [2023-08-31 23:45:50,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:50,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-31 23:45:50,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:50,830 INFO L130 PetriNetUnfolder]: 403/861 cut-off events. [2023-08-31 23:45:50,830 INFO L131 PetriNetUnfolder]: For 5983/5983 co-relation queries the response was YES. [2023-08-31 23:45:50,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4611 conditions, 861 events. 403/861 cut-off events. For 5983/5983 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4531 event pairs, 132 based on Foata normal form. 1/857 useless extension candidates. Maximal degree in co-relation 4587. Up to 270 conditions per place. [2023-08-31 23:45:50,836 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 64 selfloop transitions, 19 changer transitions 41/125 dead transitions. [2023-08-31 23:45:50,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 125 transitions, 1199 flow [2023-08-31 23:45:50,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 23:45:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 23:45:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 946 transitions. [2023-08-31 23:45:50,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4397954439795444 [2023-08-31 23:45:50,839 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 946 transitions. [2023-08-31 23:45:50,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 946 transitions. [2023-08-31 23:45:50,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:50,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 946 transitions. [2023-08-31 23:45:50,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 105.11111111111111) internal successors, (946), 9 states have internal predecessors, (946), 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) [2023-08-31 23:45:50,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 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) [2023-08-31 23:45:50,844 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 239.0) internal successors, (2390), 10 states have internal predecessors, (2390), 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) [2023-08-31 23:45:50,844 INFO L175 Difference]: Start difference. First operand has 84 places, 61 transitions, 515 flow. Second operand 9 states and 946 transitions. [2023-08-31 23:45:50,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 125 transitions, 1199 flow [2023-08-31 23:45:50,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 125 transitions, 1102 flow, removed 37 selfloop flow, removed 7 redundant places. [2023-08-31 23:45:50,857 INFO L231 Difference]: Finished difference. Result has 86 places, 60 transitions, 506 flow [2023-08-31 23:45:50,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=506, PETRI_PLACES=86, PETRI_TRANSITIONS=60} [2023-08-31 23:45:50,858 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 43 predicate places. [2023-08-31 23:45:50,858 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 60 transitions, 506 flow [2023-08-31 23:45:50,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.3) internal successors, (993), 10 states have internal predecessors, (993), 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) [2023-08-31 23:45:50,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 23:45:50,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 23:45:50,859 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-31 23:45:50,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 23:45:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1973441459, now seen corresponding path program 8 times [2023-08-31 23:45:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 23:45:50,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585584899] [2023-08-31 23:45:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 23:45:50,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 23:45:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 23:45:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 23:45:53,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 23:45:53,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585584899] [2023-08-31 23:45:53,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585584899] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 23:45:53,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 23:45:53,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 23:45:53,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320526660] [2023-08-31 23:45:53,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 23:45:53,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 23:45:53,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 23:45:53,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 23:45:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 23:45:53,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-31 23:45:53,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 60 transitions, 506 flow. Second operand has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 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) [2023-08-31 23:45:53,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 23:45:53,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-31 23:45:53,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 23:45:53,827 INFO L130 PetriNetUnfolder]: 392/826 cut-off events. [2023-08-31 23:45:53,828 INFO L131 PetriNetUnfolder]: For 4599/4599 co-relation queries the response was YES. [2023-08-31 23:45:53,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4240 conditions, 826 events. 392/826 cut-off events. For 4599/4599 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4256 event pairs, 112 based on Foata normal form. 2/823 useless extension candidates. Maximal degree in co-relation 4216. Up to 223 conditions per place. [2023-08-31 23:45:53,833 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2023-08-31 23:45:53,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 119 transitions, 1177 flow [2023-08-31 23:45:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 23:45:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 23:45:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1055 transitions. [2023-08-31 23:45:53,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44142259414225943 [2023-08-31 23:45:53,836 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1055 transitions. [2023-08-31 23:45:53,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1055 transitions. [2023-08-31 23:45:53,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 23:45:53,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1055 transitions. [2023-08-31 23:45:53,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.5) internal successors, (1055), 10 states have internal predecessors, (1055), 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) [2023-08-31 23:45:53,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 239.0) internal successors, (2629), 11 states have internal predecessors, (2629), 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) [2023-08-31 23:45:53,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 239.0) internal successors, (2629), 11 states have internal predecessors, (2629), 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) [2023-08-31 23:45:53,842 INFO L175 Difference]: Start difference. First operand has 86 places, 60 transitions, 506 flow. Second operand 10 states and 1055 transitions. [2023-08-31 23:45:53,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 119 transitions, 1177 flow [2023-08-31 23:45:53,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 119 transitions, 1123 flow, removed 11 selfloop flow, removed 6 redundant places. [2023-08-31 23:45:53,854 INFO L231 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2023-08-31 23:45:53,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2023-08-31 23:45:53,855 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 43 predicate places. [2023-08-31 23:45:53,855 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2023-08-31 23:45:53,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 100.3) internal successors, (1003), 10 states have internal predecessors, (1003), 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) [2023-08-31 23:45:53,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-08-31 23:45:53,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2023-08-31 23:45:53,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-08-31 23:45:53,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-08-31 23:45:53,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-08-31 23:45:53,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-08-31 23:45:53,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-08-31 23:45:53,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 13 remaining) [2023-08-31 23:45:53,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-08-31 23:45:53,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-08-31 23:45:53,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-08-31 23:45:53,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-08-31 23:45:53,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-08-31 23:45:53,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 23:45:53,861 INFO L445 BasicCegarLoop]: Path program histogram: [8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 23:45:53,866 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 23:45:53,866 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 23:45:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 11:45:53 BasicIcfg [2023-08-31 23:45:53,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 23:45:53,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 23:45:53,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 23:45:53,870 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 23:45:53,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:45:13" (3/4) ... [2023-08-31 23:45:53,872 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 23:45:53,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-31 23:45:53,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-31 23:45:53,877 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-31 23:45:53,881 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-08-31 23:45:53,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-31 23:45:53,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 23:45:53,882 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 23:45:53,912 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 23:45:53,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 23:45:53,913 INFO L158 Benchmark]: Toolchain (without parser) took 42478.09ms. Allocated memory was 71.3MB in the beginning and 841.0MB in the end (delta: 769.7MB). Free memory was 47.8MB in the beginning and 294.9MB in the end (delta: -247.1MB). Peak memory consumption was 524.9MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,913 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 23:45:53,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.27ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 38.9MB in the end (delta: 8.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.03ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 35.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,914 INFO L158 Benchmark]: Boogie Preprocessor took 33.93ms. Allocated memory is still 71.3MB. Free memory was 35.6MB in the beginning and 32.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,914 INFO L158 Benchmark]: RCFGBuilder took 948.59ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 46.8MB in the end (delta: -13.9MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,915 INFO L158 Benchmark]: TraceAbstraction took 40777.76ms. Allocated memory was 86.0MB in the beginning and 841.0MB in the end (delta: 755.0MB). Free memory was 46.3MB in the beginning and 299.1MB in the end (delta: -252.8MB). Peak memory consumption was 502.2MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,915 INFO L158 Benchmark]: Witness Printer took 42.95ms. Allocated memory is still 841.0MB. Free memory was 298.0MB in the beginning and 294.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 23:45:53,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.27ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 38.9MB in the end (delta: 8.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.03ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 35.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.93ms. Allocated memory is still 71.3MB. Free memory was 35.6MB in the beginning and 32.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 948.59ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 46.8MB in the end (delta: -13.9MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 40777.76ms. Allocated memory was 86.0MB in the beginning and 841.0MB in the end (delta: 755.0MB). Free memory was 46.3MB in the beginning and 299.1MB in the end (delta: -252.8MB). Peak memory consumption was 502.2MB. Max. memory is 16.1GB. * Witness Printer took 42.95ms. Allocated memory is still 841.0MB. Free memory was 298.0MB in the beginning and 294.9MB 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: 5.8s, 127 PlacesBefore, 43 PlacesAfterwards, 119 TransitionsBefore, 33 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 7684 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2876, independent: 2650, independent conditional: 0, independent unconditional: 2650, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1295, independent: 1250, independent conditional: 0, independent unconditional: 1250, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2876, independent: 1400, independent conditional: 0, independent unconditional: 1400, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 1295, unknown conditional: 0, unknown unconditional: 1295] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -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: 866]: 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, 152 locations, 13 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: 40.7s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1120 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 919 mSDsluCounter, 679 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 641 mSDsCounter, 541 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4564 IncrementalHoareTripleChecker+Invalid, 5105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 541 mSolverCounterUnsat, 38 mSDtfsCounter, 4564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=755occurred in iteration=11, InterpolantAutomatonStates: 128, 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: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 21.6s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 3802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 23:45:53,936 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