./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 20:51:25,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 20:51:25,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 20:51:25,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 20:51:25,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 20:51:25,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 20:51:26,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 20:51:26,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 20:51:26,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 20:51:26,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 20:51:26,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 20:51:26,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 20:51:26,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 20:51:26,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 20:51:26,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 20:51:26,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 20:51:26,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 20:51:26,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 20:51:26,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 20:51:26,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 20:51:26,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 20:51:26,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 20:51:26,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 20:51:26,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 20:51:26,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 20:51:26,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 20:51:26,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 20:51:26,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 20:51:26,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 20:51:26,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 20:51:26,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 20:51:26,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 20:51:26,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 20:51:26,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 20:51:26,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 20:51:26,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 20:51:26,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 20:51:26,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 20:51:26,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 20:51:26,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 20:51:26,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 20:51:26,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 20:51:26,069 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 20:51:26,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 20:51:26,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 20:51:26,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 20:51:26,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 20:51:26,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 20:51:26,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 20:51:26,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 20:51:26,072 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 20:51:26,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 20:51:26,073 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 20:51:26,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 20:51:26,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 20:51:26,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 20:51:26,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 20:51:26,074 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 20:51:26,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 20:51:26,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 20:51:26,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 20:51:26,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:51:26,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 20:51:26,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 20:51:26,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 20:51:26,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 20:51:26,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 20:51:26,076 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 20:51:26,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 20:51:26,076 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 20:51:26,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 20:51:26,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 20:51:26,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 20:51:26,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 20:51:26,334 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 20:51:26,334 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 20:51:26,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_power.i [2023-08-29 20:51:27,189 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 20:51:27,372 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 20:51:27,372 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.i [2023-08-29 20:51:27,386 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91430a011/53180875e8314993842368849516e192/FLAGafc9e1ffd [2023-08-29 20:51:27,745 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91430a011/53180875e8314993842368849516e192 [2023-08-29 20:51:27,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 20:51:27,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 20:51:27,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 20:51:27,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 20:51:27,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 20:51:27,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:51:27" (1/1) ... [2023-08-29 20:51:27,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7460b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:27, skipping insertion in model container [2023-08-29 20:51:27,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:51:27" (1/1) ... [2023-08-29 20:51:27,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 20:51:27,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 20:51:27,905 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] [2023-08-29 20:51:28,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:51:28,117 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 20:51:28,126 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] [2023-08-29 20:51:28,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 20:51:28,198 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:51:28,198 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 20:51:28,203 INFO L208 MainTranslator]: Completed translation [2023-08-29 20:51:28,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28 WrapperNode [2023-08-29 20:51:28,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 20:51:28,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 20:51:28,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 20:51:28,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 20:51:28,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,259 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-08-29 20:51:28,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 20:51:28,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 20:51:28,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 20:51:28,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 20:51:28,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 20:51:28,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 20:51:28,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 20:51:28,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 20:51:28,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (1/1) ... [2023-08-29 20:51:28,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 20:51:28,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 20:51:28,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 20:51:28,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 20:51:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 20:51:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 20:51:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 20:51:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 20:51:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 20:51:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-29 20:51:28,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-29 20:51:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-29 20:51:28,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-29 20:51:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-29 20:51:28,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-29 20:51:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 20:51:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 20:51:28,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 20:51:28,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 20:51:28,369 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 20:51:28,524 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 20:51:28,525 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 20:51:28,880 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 20:51:29,022 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 20:51:29,022 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 20:51:29,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:51:29 BoogieIcfgContainer [2023-08-29 20:51:29,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 20:51:29,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 20:51:29,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 20:51:29,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 20:51:29,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:51:27" (1/3) ... [2023-08-29 20:51:29,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c40d2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:51:29, skipping insertion in model container [2023-08-29 20:51:29,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:51:28" (2/3) ... [2023-08-29 20:51:29,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c40d2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:51:29, skipping insertion in model container [2023-08-29 20:51:29,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:51:29" (3/3) ... [2023-08-29 20:51:29,030 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2023-08-29 20:51:29,041 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 20:51:29,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 20:51:29,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 20:51:29,085 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 20:51:29,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 259 flow [2023-08-29 20:51:29,151 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2023-08-29 20:51:29,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:29,155 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. [2023-08-29 20:51:29,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 122 transitions, 259 flow [2023-08-29 20:51:29,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 119 transitions, 247 flow [2023-08-29 20:51:29,162 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 20:51:29,176 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 119 transitions, 247 flow [2023-08-29 20:51:29,179 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 119 transitions, 247 flow [2023-08-29 20:51:29,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 247 flow [2023-08-29 20:51:29,201 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2023-08-29 20:51:29,201 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:29,201 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. [2023-08-29 20:51:29,202 INFO L119 LiptonReduction]: Number of co-enabled transitions 2448 [2023-08-29 20:51:33,991 INFO L134 LiptonReduction]: Checked pairs total: 7684 [2023-08-29 20:51:33,991 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-08-29 20:51:34,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 20:51:34,004 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;@1671d134, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 20:51:34,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-29 20:51:34,005 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 20:51:34,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:34,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:34,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 20:51:34,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:34,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:34,014 INFO L85 PathProgramCache]: Analyzing trace with hash 629, now seen corresponding path program 1 times [2023-08-29 20:51:34,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:34,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251416657] [2023-08-29 20:51:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:34,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:34,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251416657] [2023-08-29 20:51:34,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251416657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:34,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:34,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 20:51:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780764332] [2023-08-29 20:51:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:34,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 20:51:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:34,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 20:51:34,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 20:51:34,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 239 [2023-08-29 20:51:34,164 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) [2023-08-29 20:51:34,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:34,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 239 [2023-08-29 20:51:34,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:34,755 INFO L130 PetriNetUnfolder]: 3035/4369 cut-off events. [2023-08-29 20:51:34,755 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-29 20:51:34,760 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. [2023-08-29 20:51:34,771 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 26 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-29 20:51:34,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 115 flow [2023-08-29 20:51:34,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 20:51:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 20:51:34,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 240 transitions. [2023-08-29 20:51:34,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.502092050209205 [2023-08-29 20:51:34,780 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 240 transitions. [2023-08-29 20:51:34,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 240 transitions. [2023-08-29 20:51:34,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:34,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 240 transitions. [2023-08-29 20:51:34,784 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) [2023-08-29 20:51:34,787 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) [2023-08-29 20:51:34,787 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) [2023-08-29 20:51:34,788 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 2 states and 240 transitions. [2023-08-29 20:51:34,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 115 flow [2023-08-29 20:51:34,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 20:51:34,791 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 60 flow [2023-08-29 20:51:34,792 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} [2023-08-29 20:51:34,794 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -8 predicate places. [2023-08-29 20:51:34,794 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 60 flow [2023-08-29 20:51:34,794 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) [2023-08-29 20:51:34,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:34,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:34,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 20:51:34,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:34,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2134733207, now seen corresponding path program 1 times [2023-08-29 20:51:34,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:34,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887827148] [2023-08-29 20:51:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:34,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:35,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:35,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887827148] [2023-08-29 20:51:35,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887827148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:35,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:35,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 20:51:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949147329] [2023-08-29 20:51:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:35,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 20:51:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 20:51:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 20:51:35,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 239 [2023-08-29 20:51:35,059 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) [2023-08-29 20:51:35,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:35,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 239 [2023-08-29 20:51:35,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:35,568 INFO L130 PetriNetUnfolder]: 2591/3745 cut-off events. [2023-08-29 20:51:35,568 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 20:51:35,571 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. [2023-08-29 20:51:35,580 INFO L137 encePairwiseOnDemand]: 236/239 looper letters, 35 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2023-08-29 20:51:35,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 164 flow [2023-08-29 20:51:35,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 20:51:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 20:51:35,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2023-08-29 20:51:35,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48675034867503486 [2023-08-29 20:51:35,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2023-08-29 20:51:35,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2023-08-29 20:51:35,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:35,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2023-08-29 20:51:35,584 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) [2023-08-29 20:51:35,586 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) [2023-08-29 20:51:35,586 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) [2023-08-29 20:51:35,586 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 60 flow. Second operand 3 states and 349 transitions. [2023-08-29 20:51:35,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 164 flow [2023-08-29 20:51:35,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 20:51:35,587 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 60 flow [2023-08-29 20:51:35,588 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} [2023-08-29 20:51:35,588 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-29 20:51:35,588 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 60 flow [2023-08-29 20:51:35,589 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) [2023-08-29 20:51:35,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:35,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:35,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 20:51:35,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:35,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:35,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1515723353, now seen corresponding path program 1 times [2023-08-29 20:51:35,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:35,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890587651] [2023-08-29 20:51:35,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:35,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:35,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:35,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890587651] [2023-08-29 20:51:35,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890587651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:35,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:35,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 20:51:35,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882959738] [2023-08-29 20:51:35,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:35,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 20:51:35,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:35,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 20:51:35,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 20:51:35,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 239 [2023-08-29 20:51:35,899 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) [2023-08-29 20:51:35,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:35,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 239 [2023-08-29 20:51:35,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:36,230 INFO L130 PetriNetUnfolder]: 1910/2794 cut-off events. [2023-08-29 20:51:36,230 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-08-29 20:51:36,233 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. [2023-08-29 20:51:36,239 INFO L137 encePairwiseOnDemand]: 236/239 looper letters, 34 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-29 20:51:36,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 156 flow [2023-08-29 20:51:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 20:51:36,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 20:51:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-08-29 20:51:36,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825662482566248 [2023-08-29 20:51:36,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-08-29 20:51:36,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-08-29 20:51:36,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:36,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-08-29 20:51:36,242 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) [2023-08-29 20:51:36,244 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) [2023-08-29 20:51:36,245 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) [2023-08-29 20:51:36,245 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 60 flow. Second operand 3 states and 346 transitions. [2023-08-29 20:51:36,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 156 flow [2023-08-29 20:51:36,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 20:51:36,246 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 64 flow [2023-08-29 20:51:36,246 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} [2023-08-29 20:51:36,247 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-08-29 20:51:36,247 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 64 flow [2023-08-29 20:51:36,247 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) [2023-08-29 20:51:36,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:36,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:36,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 20:51:36,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:36,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:36,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1515723345, now seen corresponding path program 1 times [2023-08-29 20:51:36,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:36,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369765749] [2023-08-29 20:51:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:36,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:36,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:36,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369765749] [2023-08-29 20:51:36,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369765749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:36,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:36,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:51:36,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969417552] [2023-08-29 20:51:36,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:51:36,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:36,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:51:36,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:51:36,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 239 [2023-08-29 20:51:36,596 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) [2023-08-29 20:51:36,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:36,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 239 [2023-08-29 20:51:36,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:36,860 INFO L130 PetriNetUnfolder]: 1466/2168 cut-off events. [2023-08-29 20:51:36,861 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-08-29 20:51:36,863 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. [2023-08-29 20:51:36,869 INFO L137 encePairwiseOnDemand]: 235/239 looper letters, 33 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-08-29 20:51:36,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 160 flow [2023-08-29 20:51:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:36,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2023-08-29 20:51:36,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40753138075313805 [2023-08-29 20:51:36,872 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2023-08-29 20:51:36,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2023-08-29 20:51:36,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:36,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2023-08-29 20:51:36,876 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) [2023-08-29 20:51:36,878 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) [2023-08-29 20:51:36,879 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) [2023-08-29 20:51:36,879 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 64 flow. Second operand 5 states and 487 transitions. [2023-08-29 20:51:36,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 160 flow [2023-08-29 20:51:36,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 20:51:36,882 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 64 flow [2023-08-29 20:51:36,882 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} [2023-08-29 20:51:36,883 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2023-08-29 20:51:36,883 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 64 flow [2023-08-29 20:51:36,883 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) [2023-08-29 20:51:36,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:36,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:36,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 20:51:36,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:36,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:36,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1945861122, now seen corresponding path program 1 times [2023-08-29 20:51:36,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:36,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401444981] [2023-08-29 20:51:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:36,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:37,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:37,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:37,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401444981] [2023-08-29 20:51:37,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401444981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:37,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:37,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:51:37,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334655956] [2023-08-29 20:51:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:37,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 20:51:37,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:37,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 20:51:37,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-29 20:51:37,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:37,574 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) [2023-08-29 20:51:37,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:37,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:37,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:37,961 INFO L130 PetriNetUnfolder]: 2017/2971 cut-off events. [2023-08-29 20:51:37,961 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-29 20:51:37,963 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. [2023-08-29 20:51:37,970 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 34 selfloop transitions, 14 changer transitions 0/49 dead transitions. [2023-08-29 20:51:37,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 211 flow [2023-08-29 20:51:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 539 transitions. [2023-08-29 20:51:37,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4510460251046025 [2023-08-29 20:51:37,972 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 539 transitions. [2023-08-29 20:51:37,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 539 transitions. [2023-08-29 20:51:37,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:37,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 539 transitions. [2023-08-29 20:51:37,974 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) [2023-08-29 20:51:37,976 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) [2023-08-29 20:51:37,976 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) [2023-08-29 20:51:37,976 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 64 flow. Second operand 5 states and 539 transitions. [2023-08-29 20:51:37,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 211 flow [2023-08-29 20:51:37,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 20:51:37,978 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 143 flow [2023-08-29 20:51:37,978 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} [2023-08-29 20:51:37,979 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-08-29 20:51:37,980 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 143 flow [2023-08-29 20:51:37,981 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) [2023-08-29 20:51:37,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:37,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:37,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 20:51:37,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:37,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:37,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1526403136, now seen corresponding path program 1 times [2023-08-29 20:51:37,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:37,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945927397] [2023-08-29 20:51:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:38,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:38,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945927397] [2023-08-29 20:51:38,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945927397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:38,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:38,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 20:51:38,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391642959] [2023-08-29 20:51:38,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:38,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 20:51:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:38,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 20:51:38,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 20:51:38,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:38,290 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) [2023-08-29 20:51:38,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:38,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:38,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:38,561 INFO L130 PetriNetUnfolder]: 1538/2418 cut-off events. [2023-08-29 20:51:38,562 INFO L131 PetriNetUnfolder]: For 1054/1054 co-relation queries the response was YES. [2023-08-29 20:51:38,565 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. [2023-08-29 20:51:38,571 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 86 selfloop transitions, 5 changer transitions 1/93 dead transitions. [2023-08-29 20:51:38,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 93 transitions, 560 flow [2023-08-29 20:51:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 20:51:38,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 20:51:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2023-08-29 20:51:38,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4707112970711297 [2023-08-29 20:51:38,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2023-08-29 20:51:38,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2023-08-29 20:51:38,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:38,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2023-08-29 20:51:38,575 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) [2023-08-29 20:51:38,576 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) [2023-08-29 20:51:38,576 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) [2023-08-29 20:51:38,576 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 143 flow. Second operand 4 states and 450 transitions. [2023-08-29 20:51:38,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 93 transitions, 560 flow [2023-08-29 20:51:38,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 93 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 20:51:38,579 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 176 flow [2023-08-29 20:51:38,579 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} [2023-08-29 20:51:38,580 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2023-08-29 20:51:38,580 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 176 flow [2023-08-29 20:51:38,580 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) [2023-08-29 20:51:38,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:38,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:38,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 20:51:38,581 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:38,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash -122170709, now seen corresponding path program 1 times [2023-08-29 20:51:38,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:38,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845729488] [2023-08-29 20:51:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:38,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:39,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:39,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845729488] [2023-08-29 20:51:39,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845729488] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:39,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:39,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 20:51:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901075330] [2023-08-29 20:51:39,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:39,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 20:51:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:39,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 20:51:39,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-29 20:51:39,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 239 [2023-08-29 20:51:39,358 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) [2023-08-29 20:51:39,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:39,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 239 [2023-08-29 20:51:39,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:39,717 INFO L130 PetriNetUnfolder]: 1362/2243 cut-off events. [2023-08-29 20:51:39,717 INFO L131 PetriNetUnfolder]: For 1579/1579 co-relation queries the response was YES. [2023-08-29 20:51:39,721 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. [2023-08-29 20:51:39,725 INFO L137 encePairwiseOnDemand]: 227/239 looper letters, 84 selfloop transitions, 16 changer transitions 9/110 dead transitions. [2023-08-29 20:51:39,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 110 transitions, 712 flow [2023-08-29 20:51:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:51:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:51:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 779 transitions. [2023-08-29 20:51:39,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656306037059175 [2023-08-29 20:51:39,728 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 779 transitions. [2023-08-29 20:51:39,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 779 transitions. [2023-08-29 20:51:39,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:39,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 779 transitions. [2023-08-29 20:51:39,730 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) [2023-08-29 20:51:39,732 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) [2023-08-29 20:51:39,732 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) [2023-08-29 20:51:39,732 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 176 flow. Second operand 7 states and 779 transitions. [2023-08-29 20:51:39,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 110 transitions, 712 flow [2023-08-29 20:51:39,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 110 transitions, 674 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-29 20:51:39,735 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 321 flow [2023-08-29 20:51:39,736 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} [2023-08-29 20:51:39,736 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2023-08-29 20:51:39,736 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 321 flow [2023-08-29 20:51:39,737 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) [2023-08-29 20:51:39,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:39,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:39,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 20:51:39,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:39,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:39,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1950847983, now seen corresponding path program 1 times [2023-08-29 20:51:39,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:39,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289432775] [2023-08-29 20:51:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:39,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:39,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:39,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289432775] [2023-08-29 20:51:39,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289432775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:39,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:39,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 20:51:39,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379522253] [2023-08-29 20:51:39,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:39,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 20:51:39,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:39,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 20:51:39,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 20:51:39,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:39,984 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) [2023-08-29 20:51:39,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:39,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:39,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:40,250 INFO L130 PetriNetUnfolder]: 931/1606 cut-off events. [2023-08-29 20:51:40,251 INFO L131 PetriNetUnfolder]: For 2058/2058 co-relation queries the response was YES. [2023-08-29 20:51:40,254 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. [2023-08-29 20:51:40,257 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 92 selfloop transitions, 8 changer transitions 7/108 dead transitions. [2023-08-29 20:51:40,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 108 transitions, 819 flow [2023-08-29 20:51:40,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 20:51:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 20:51:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 564 transitions. [2023-08-29 20:51:40,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4719665271966527 [2023-08-29 20:51:40,259 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 564 transitions. [2023-08-29 20:51:40,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 564 transitions. [2023-08-29 20:51:40,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:40,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 564 transitions. [2023-08-29 20:51:40,260 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) [2023-08-29 20:51:40,262 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) [2023-08-29 20:51:40,262 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) [2023-08-29 20:51:40,262 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 321 flow. Second operand 5 states and 564 transitions. [2023-08-29 20:51:40,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 108 transitions, 819 flow [2023-08-29 20:51:40,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 108 transitions, 797 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-29 20:51:40,267 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 292 flow [2023-08-29 20:51:40,267 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} [2023-08-29 20:51:40,267 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2023-08-29 20:51:40,267 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 292 flow [2023-08-29 20:51:40,268 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) [2023-08-29 20:51:40,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:40,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:40,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 20:51:40,268 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:40,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2079342902, now seen corresponding path program 1 times [2023-08-29 20:51:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:40,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296036401] [2023-08-29 20:51:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:41,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:41,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:41,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296036401] [2023-08-29 20:51:41,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296036401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:41,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:41,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 20:51:41,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758564056] [2023-08-29 20:51:41,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:41,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 20:51:41,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:41,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 20:51:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 20:51:41,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:41,596 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) [2023-08-29 20:51:41,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:41,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:41,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:41,978 INFO L130 PetriNetUnfolder]: 897/1629 cut-off events. [2023-08-29 20:51:41,979 INFO L131 PetriNetUnfolder]: For 2733/2733 co-relation queries the response was YES. [2023-08-29 20:51:41,982 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. [2023-08-29 20:51:41,985 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 67 selfloop transitions, 23 changer transitions 16/107 dead transitions. [2023-08-29 20:51:41,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 107 transitions, 852 flow [2023-08-29 20:51:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:51:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:51:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 764 transitions. [2023-08-29 20:51:41,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.456664674237896 [2023-08-29 20:51:41,988 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 764 transitions. [2023-08-29 20:51:41,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 764 transitions. [2023-08-29 20:51:41,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:41,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 764 transitions. [2023-08-29 20:51:41,990 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) [2023-08-29 20:51:41,993 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) [2023-08-29 20:51:41,993 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) [2023-08-29 20:51:41,993 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 292 flow. Second operand 7 states and 764 transitions. [2023-08-29 20:51:41,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 107 transitions, 852 flow [2023-08-29 20:51:42,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 107 transitions, 774 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-08-29 20:51:42,003 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 398 flow [2023-08-29 20:51:42,003 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} [2023-08-29 20:51:42,004 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2023-08-29 20:51:42,004 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 398 flow [2023-08-29 20:51:42,005 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) [2023-08-29 20:51:42,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:42,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:42,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 20:51:42,005 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:42,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash 89915190, now seen corresponding path program 2 times [2023-08-29 20:51:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50010107] [2023-08-29 20:51:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:42,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:43,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:43,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50010107] [2023-08-29 20:51:43,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50010107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:43,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:43,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 20:51:43,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849325024] [2023-08-29 20:51:43,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:43,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 20:51:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:43,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 20:51:43,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 20:51:43,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-29 20:51:43,597 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) [2023-08-29 20:51:43,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:43,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-29 20:51:43,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:43,967 INFO L130 PetriNetUnfolder]: 869/1588 cut-off events. [2023-08-29 20:51:43,967 INFO L131 PetriNetUnfolder]: For 3554/3554 co-relation queries the response was YES. [2023-08-29 20:51:43,970 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. [2023-08-29 20:51:43,973 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 65 selfloop transitions, 22 changer transitions 30/118 dead transitions. [2023-08-29 20:51:43,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 118 transitions, 1015 flow [2023-08-29 20:51:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 20:51:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 20:51:43,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2023-08-29 20:51:43,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4560669456066946 [2023-08-29 20:51:43,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2023-08-29 20:51:43,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2023-08-29 20:51:43,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:43,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2023-08-29 20:51:43,977 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) [2023-08-29 20:51:43,979 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) [2023-08-29 20:51:43,980 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) [2023-08-29 20:51:43,980 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 398 flow. Second operand 6 states and 654 transitions. [2023-08-29 20:51:43,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 118 transitions, 1015 flow [2023-08-29 20:51:43,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 118 transitions, 958 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 20:51:43,985 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 458 flow [2023-08-29 20:51:43,986 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} [2023-08-29 20:51:43,986 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2023-08-29 20:51:43,987 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 458 flow [2023-08-29 20:51:43,987 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) [2023-08-29 20:51:43,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:43,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:43,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 20:51:43,988 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:43,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:43,988 INFO L85 PathProgramCache]: Analyzing trace with hash -610830992, now seen corresponding path program 1 times [2023-08-29 20:51:43,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:43,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124180727] [2023-08-29 20:51:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:43,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:45,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:45,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124180727] [2023-08-29 20:51:45,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124180727] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 20:51:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296210435] [2023-08-29 20:51:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:45,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 20:51:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 20:51:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 20:51:46,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:46,025 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) [2023-08-29 20:51:46,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:46,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:46,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:46,438 INFO L130 PetriNetUnfolder]: 811/1517 cut-off events. [2023-08-29 20:51:46,438 INFO L131 PetriNetUnfolder]: For 4385/4385 co-relation queries the response was YES. [2023-08-29 20:51:46,441 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. [2023-08-29 20:51:46,445 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 79 selfloop transitions, 40 changer transitions 25/145 dead transitions. [2023-08-29 20:51:46,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 145 transitions, 1282 flow [2023-08-29 20:51:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 20:51:46,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 20:51:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 880 transitions. [2023-08-29 20:51:46,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4602510460251046 [2023-08-29 20:51:46,448 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 880 transitions. [2023-08-29 20:51:46,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 880 transitions. [2023-08-29 20:51:46,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:46,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 880 transitions. [2023-08-29 20:51:46,450 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) [2023-08-29 20:51:46,452 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) [2023-08-29 20:51:46,452 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) [2023-08-29 20:51:46,452 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 458 flow. Second operand 8 states and 880 transitions. [2023-08-29 20:51:46,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 145 transitions, 1282 flow [2023-08-29 20:51:46,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 145 transitions, 1207 flow, removed 24 selfloop flow, removed 2 redundant places. [2023-08-29 20:51:46,460 INFO L231 Difference]: Finished difference. Result has 72 places, 84 transitions, 755 flow [2023-08-29 20:51:46,461 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} [2023-08-29 20:51:46,461 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 29 predicate places. [2023-08-29 20:51:46,461 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 84 transitions, 755 flow [2023-08-29 20:51:46,462 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) [2023-08-29 20:51:46,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:46,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:46,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 20:51:46,462 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:46,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:46,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1364033562, now seen corresponding path program 3 times [2023-08-29 20:51:46,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:46,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655144703] [2023-08-29 20:51:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:46,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:46,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:46,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655144703] [2023-08-29 20:51:46,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655144703] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:46,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:46,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 20:51:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758047368] [2023-08-29 20:51:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:46,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 20:51:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 20:51:46,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-29 20:51:46,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:46,701 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) [2023-08-29 20:51:46,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:46,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:46,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:46,938 INFO L130 PetriNetUnfolder]: 680/1266 cut-off events. [2023-08-29 20:51:46,938 INFO L131 PetriNetUnfolder]: For 4991/4991 co-relation queries the response was YES. [2023-08-29 20:51:46,941 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. [2023-08-29 20:51:46,944 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 142 selfloop transitions, 11 changer transitions 14/168 dead transitions. [2023-08-29 20:51:46,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1841 flow [2023-08-29 20:51:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 20:51:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 20:51:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2023-08-29 20:51:46,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45188284518828453 [2023-08-29 20:51:46,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 648 transitions. [2023-08-29 20:51:46,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 648 transitions. [2023-08-29 20:51:46,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:46,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 648 transitions. [2023-08-29 20:51:46,948 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) [2023-08-29 20:51:46,949 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) [2023-08-29 20:51:46,950 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) [2023-08-29 20:51:46,950 INFO L175 Difference]: Start difference. First operand has 72 places, 84 transitions, 755 flow. Second operand 6 states and 648 transitions. [2023-08-29 20:51:46,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1841 flow [2023-08-29 20:51:46,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 168 transitions, 1594 flow, removed 95 selfloop flow, removed 5 redundant places. [2023-08-29 20:51:46,973 INFO L231 Difference]: Finished difference. Result has 74 places, 84 transitions, 669 flow [2023-08-29 20:51:46,973 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} [2023-08-29 20:51:46,974 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2023-08-29 20:51:46,974 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 84 transitions, 669 flow [2023-08-29 20:51:46,974 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) [2023-08-29 20:51:46,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:46,974 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] [2023-08-29 20:51:46,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 20:51:46,975 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:46,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash -636215637, now seen corresponding path program 1 times [2023-08-29 20:51:46,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:46,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927764925] [2023-08-29 20:51:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:47,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:47,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927764925] [2023-08-29 20:51:47,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927764925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:47,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:47,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 20:51:47,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939078732] [2023-08-29 20:51:47,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:47,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 20:51:47,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:47,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 20:51:47,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-29 20:51:48,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 239 [2023-08-29 20:51:48,032 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) [2023-08-29 20:51:48,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:48,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 239 [2023-08-29 20:51:48,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:48,385 INFO L130 PetriNetUnfolder]: 901/1694 cut-off events. [2023-08-29 20:51:48,385 INFO L131 PetriNetUnfolder]: For 5898/5898 co-relation queries the response was YES. [2023-08-29 20:51:48,389 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. [2023-08-29 20:51:48,392 INFO L137 encePairwiseOnDemand]: 231/239 looper letters, 91 selfloop transitions, 9 changer transitions 62/163 dead transitions. [2023-08-29 20:51:48,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 163 transitions, 1585 flow [2023-08-29 20:51:48,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 20:51:48,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 20:51:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 877 transitions. [2023-08-29 20:51:48,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45868200836820083 [2023-08-29 20:51:48,395 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 877 transitions. [2023-08-29 20:51:48,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 877 transitions. [2023-08-29 20:51:48,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:48,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 877 transitions. [2023-08-29 20:51:48,397 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) [2023-08-29 20:51:48,399 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) [2023-08-29 20:51:48,400 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) [2023-08-29 20:51:48,400 INFO L175 Difference]: Start difference. First operand has 74 places, 84 transitions, 669 flow. Second operand 8 states and 877 transitions. [2023-08-29 20:51:48,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 163 transitions, 1585 flow [2023-08-29 20:51:48,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 163 transitions, 1371 flow, removed 25 selfloop flow, removed 11 redundant places. [2023-08-29 20:51:48,414 INFO L231 Difference]: Finished difference. Result has 74 places, 86 transitions, 642 flow [2023-08-29 20:51:48,415 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} [2023-08-29 20:51:48,415 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2023-08-29 20:51:48,415 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 86 transitions, 642 flow [2023-08-29 20:51:48,416 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) [2023-08-29 20:51:48,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:48,416 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] [2023-08-29 20:51:48,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 20:51:48,416 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:48,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:48,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2016160829, now seen corresponding path program 2 times [2023-08-29 20:51:48,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:48,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506311247] [2023-08-29 20:51:48,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:48,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506311247] [2023-08-29 20:51:48,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506311247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:48,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:48,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 20:51:48,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100464447] [2023-08-29 20:51:48,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:48,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 20:51:48,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:48,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 20:51:48,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-29 20:51:48,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-29 20:51:48,948 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) [2023-08-29 20:51:48,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:48,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-29 20:51:48,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:49,310 INFO L130 PetriNetUnfolder]: 1027/1878 cut-off events. [2023-08-29 20:51:49,311 INFO L131 PetriNetUnfolder]: For 5843/5843 co-relation queries the response was YES. [2023-08-29 20:51:49,315 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. [2023-08-29 20:51:49,318 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 69 selfloop transitions, 2 changer transitions 115/186 dead transitions. [2023-08-29 20:51:49,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 186 transitions, 1706 flow [2023-08-29 20:51:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:51:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:51:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 748 transitions. [2023-08-29 20:51:49,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44710101613867304 [2023-08-29 20:51:49,320 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 748 transitions. [2023-08-29 20:51:49,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 748 transitions. [2023-08-29 20:51:49,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:49,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 748 transitions. [2023-08-29 20:51:49,322 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) [2023-08-29 20:51:49,324 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) [2023-08-29 20:51:49,324 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) [2023-08-29 20:51:49,324 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 642 flow. Second operand 7 states and 748 transitions. [2023-08-29 20:51:49,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 186 transitions, 1706 flow [2023-08-29 20:51:49,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 186 transitions, 1655 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-08-29 20:51:49,335 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 406 flow [2023-08-29 20:51:49,335 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} [2023-08-29 20:51:49,336 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 33 predicate places. [2023-08-29 20:51:49,337 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 406 flow [2023-08-29 20:51:49,337 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) [2023-08-29 20:51:49,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:49,337 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] [2023-08-29 20:51:49,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 20:51:49,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:49,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash -511570713, now seen corresponding path program 3 times [2023-08-29 20:51:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:49,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005039568] [2023-08-29 20:51:49,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:49,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:50,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:50,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005039568] [2023-08-29 20:51:50,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005039568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:50,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:50,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 20:51:50,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49928479] [2023-08-29 20:51:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:50,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 20:51:50,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 20:51:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-29 20:51:50,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:50,335 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) [2023-08-29 20:51:50,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:50,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:50,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:50,643 INFO L130 PetriNetUnfolder]: 489/971 cut-off events. [2023-08-29 20:51:50,643 INFO L131 PetriNetUnfolder]: For 3148/3148 co-relation queries the response was YES. [2023-08-29 20:51:50,646 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. [2023-08-29 20:51:50,647 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 61 selfloop transitions, 6 changer transitions 33/101 dead transitions. [2023-08-29 20:51:50,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 101 transitions, 862 flow [2023-08-29 20:51:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 20:51:50,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 20:51:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 750 transitions. [2023-08-29 20:51:50,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482964734010759 [2023-08-29 20:51:50,649 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 750 transitions. [2023-08-29 20:51:50,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 750 transitions. [2023-08-29 20:51:50,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:50,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 750 transitions. [2023-08-29 20:51:50,651 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) [2023-08-29 20:51:50,653 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) [2023-08-29 20:51:50,653 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) [2023-08-29 20:51:50,653 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 406 flow. Second operand 7 states and 750 transitions. [2023-08-29 20:51:50,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 101 transitions, 862 flow [2023-08-29 20:51:50,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 101 transitions, 827 flow, removed 9 selfloop flow, removed 7 redundant places. [2023-08-29 20:51:50,659 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 396 flow [2023-08-29 20:51:50,659 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} [2023-08-29 20:51:50,660 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 32 predicate places. [2023-08-29 20:51:50,660 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 396 flow [2023-08-29 20:51:50,660 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) [2023-08-29 20:51:50,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:50,660 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] [2023-08-29 20:51:50,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 20:51:50,661 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:50,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:50,661 INFO L85 PathProgramCache]: Analyzing trace with hash 456049071, now seen corresponding path program 4 times [2023-08-29 20:51:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:50,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392744206] [2023-08-29 20:51:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:51,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:51,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392744206] [2023-08-29 20:51:51,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392744206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:51,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:51,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 20:51:51,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969145512] [2023-08-29 20:51:51,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 20:51:51,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 20:51:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-29 20:51:51,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-29 20:51:51,336 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) [2023-08-29 20:51:51,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:51,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-29 20:51:51,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:51,650 INFO L130 PetriNetUnfolder]: 497/995 cut-off events. [2023-08-29 20:51:51,650 INFO L131 PetriNetUnfolder]: For 3353/3353 co-relation queries the response was YES. [2023-08-29 20:51:51,653 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. [2023-08-29 20:51:51,654 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 47 selfloop transitions, 16 changer transitions 42/106 dead transitions. [2023-08-29 20:51:51,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 106 transitions, 893 flow [2023-08-29 20:51:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 20:51:51,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 20:51:51,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 942 transitions. [2023-08-29 20:51:51,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43793584379358436 [2023-08-29 20:51:51,657 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 942 transitions. [2023-08-29 20:51:51,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 942 transitions. [2023-08-29 20:51:51,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:51,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 942 transitions. [2023-08-29 20:51:51,659 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) [2023-08-29 20:51:51,661 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) [2023-08-29 20:51:51,662 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) [2023-08-29 20:51:51,662 INFO L175 Difference]: Start difference. First operand has 75 places, 58 transitions, 396 flow. Second operand 9 states and 942 transitions. [2023-08-29 20:51:51,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 106 transitions, 893 flow [2023-08-29 20:51:51,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 106 transitions, 880 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-29 20:51:51,668 INFO L231 Difference]: Finished difference. Result has 80 places, 59 transitions, 454 flow [2023-08-29 20:51:51,668 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} [2023-08-29 20:51:51,669 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2023-08-29 20:51:51,669 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 59 transitions, 454 flow [2023-08-29 20:51:51,669 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) [2023-08-29 20:51:51,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:51,669 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] [2023-08-29 20:51:51,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 20:51:51,670 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:51,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash 494684339, now seen corresponding path program 5 times [2023-08-29 20:51:51,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:51,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447683769] [2023-08-29 20:51:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:51,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:52,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:52,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447683769] [2023-08-29 20:51:52,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447683769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:52,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:52,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 20:51:52,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390683171] [2023-08-29 20:51:52,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:52,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 20:51:52,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:52,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 20:51:52,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-29 20:51:52,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:52,633 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) [2023-08-29 20:51:52,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:52,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:52,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:52,932 INFO L130 PetriNetUnfolder]: 402/830 cut-off events. [2023-08-29 20:51:52,932 INFO L131 PetriNetUnfolder]: For 4055/4055 co-relation queries the response was YES. [2023-08-29 20:51:52,934 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. [2023-08-29 20:51:52,936 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 47 selfloop transitions, 16 changer transitions 47/111 dead transitions. [2023-08-29 20:51:52,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 1012 flow [2023-08-29 20:51:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 20:51:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 20:51:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 956 transitions. [2023-08-29 20:51:52,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-29 20:51:52,939 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 956 transitions. [2023-08-29 20:51:52,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 956 transitions. [2023-08-29 20:51:52,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:52,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 956 transitions. [2023-08-29 20:51:52,950 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) [2023-08-29 20:51:52,952 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) [2023-08-29 20:51:52,953 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) [2023-08-29 20:51:52,953 INFO L175 Difference]: Start difference. First operand has 80 places, 59 transitions, 454 flow. Second operand 9 states and 956 transitions. [2023-08-29 20:51:52,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 1012 flow [2023-08-29 20:51:52,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 111 transitions, 950 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-29 20:51:52,960 INFO L231 Difference]: Finished difference. Result has 84 places, 58 transitions, 456 flow [2023-08-29 20:51:52,960 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} [2023-08-29 20:51:52,961 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2023-08-29 20:51:52,961 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 58 transitions, 456 flow [2023-08-29 20:51:52,961 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) [2023-08-29 20:51:52,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:52,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:52,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 20:51:52,962 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:52,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash 629399099, now seen corresponding path program 6 times [2023-08-29 20:51:52,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:52,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158953648] [2023-08-29 20:51:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:52,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:53,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:53,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158953648] [2023-08-29 20:51:53,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158953648] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:53,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:53,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 20:51:53,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664004591] [2023-08-29 20:51:53,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:53,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 20:51:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:53,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 20:51:53,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-29 20:51:53,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-29 20:51:53,684 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) [2023-08-29 20:51:53,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:53,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-29 20:51:53,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:53,995 INFO L130 PetriNetUnfolder]: 395/821 cut-off events. [2023-08-29 20:51:53,995 INFO L131 PetriNetUnfolder]: For 5070/5070 co-relation queries the response was YES. [2023-08-29 20:51:53,997 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. [2023-08-29 20:51:53,998 INFO L137 encePairwiseOnDemand]: 229/239 looper letters, 57 selfloop transitions, 17 changer transitions 24/99 dead transitions. [2023-08-29 20:51:53,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 99 transitions, 946 flow [2023-08-29 20:51:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 20:51:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 20:51:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 837 transitions. [2023-08-29 20:51:54,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4377615062761506 [2023-08-29 20:51:54,004 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 837 transitions. [2023-08-29 20:51:54,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 837 transitions. [2023-08-29 20:51:54,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:54,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 837 transitions. [2023-08-29 20:51:54,006 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) [2023-08-29 20:51:54,007 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) [2023-08-29 20:51:54,008 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) [2023-08-29 20:51:54,008 INFO L175 Difference]: Start difference. First operand has 84 places, 58 transitions, 456 flow. Second operand 8 states and 837 transitions. [2023-08-29 20:51:54,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 99 transitions, 946 flow [2023-08-29 20:51:54,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 99 transitions, 893 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-29 20:51:54,015 INFO L231 Difference]: Finished difference. Result has 84 places, 61 transitions, 515 flow [2023-08-29 20:51:54,015 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} [2023-08-29 20:51:54,015 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2023-08-29 20:51:54,015 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 61 transitions, 515 flow [2023-08-29 20:51:54,016 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) [2023-08-29 20:51:54,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:54,016 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] [2023-08-29 20:51:54,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 20:51:54,016 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:54,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1235175371, now seen corresponding path program 7 times [2023-08-29 20:51:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:54,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122254199] [2023-08-29 20:51:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122254199] [2023-08-29 20:51:55,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122254199] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:55,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:55,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 20:51:55,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959184049] [2023-08-29 20:51:55,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:55,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 20:51:55,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 20:51:55,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 20:51:55,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 239 [2023-08-29 20:51:55,183 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) [2023-08-29 20:51:55,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:55,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 239 [2023-08-29 20:51:55,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:55,496 INFO L130 PetriNetUnfolder]: 403/861 cut-off events. [2023-08-29 20:51:55,496 INFO L131 PetriNetUnfolder]: For 5983/5983 co-relation queries the response was YES. [2023-08-29 20:51:55,498 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. [2023-08-29 20:51:55,500 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 64 selfloop transitions, 19 changer transitions 41/125 dead transitions. [2023-08-29 20:51:55,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 125 transitions, 1199 flow [2023-08-29 20:51:55,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 20:51:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 20:51:55,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 946 transitions. [2023-08-29 20:51:55,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4397954439795444 [2023-08-29 20:51:55,502 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 946 transitions. [2023-08-29 20:51:55,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 946 transitions. [2023-08-29 20:51:55,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:55,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 946 transitions. [2023-08-29 20:51:55,504 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) [2023-08-29 20:51:55,506 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) [2023-08-29 20:51:55,506 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) [2023-08-29 20:51:55,506 INFO L175 Difference]: Start difference. First operand has 84 places, 61 transitions, 515 flow. Second operand 9 states and 946 transitions. [2023-08-29 20:51:55,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 125 transitions, 1199 flow [2023-08-29 20:51:55,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 125 transitions, 1102 flow, removed 37 selfloop flow, removed 7 redundant places. [2023-08-29 20:51:55,516 INFO L231 Difference]: Finished difference. Result has 86 places, 60 transitions, 506 flow [2023-08-29 20:51:55,516 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} [2023-08-29 20:51:55,517 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 43 predicate places. [2023-08-29 20:51:55,517 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 60 transitions, 506 flow [2023-08-29 20:51:55,517 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) [2023-08-29 20:51:55,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 20:51:55,517 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] [2023-08-29 20:51:55,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 20:51:55,518 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-08-29 20:51:55,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 20:51:55,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1973441459, now seen corresponding path program 8 times [2023-08-29 20:51:55,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 20:51:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223092900] [2023-08-29 20:51:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 20:51:55,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 20:51:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 20:51:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 20:51:57,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 20:51:57,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223092900] [2023-08-29 20:51:57,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223092900] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 20:51:57,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 20:51:57,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 20:51:57,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17102281] [2023-08-29 20:51:57,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 20:51:57,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 20:51:57,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 20:51:57,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 20:51:57,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 20:51:57,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 239 [2023-08-29 20:51:57,163 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) [2023-08-29 20:51:57,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 20:51:57,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 239 [2023-08-29 20:51:57,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 20:51:57,585 INFO L130 PetriNetUnfolder]: 392/826 cut-off events. [2023-08-29 20:51:57,585 INFO L131 PetriNetUnfolder]: For 4599/4599 co-relation queries the response was YES. [2023-08-29 20:51:57,587 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. [2023-08-29 20:51:57,587 INFO L137 encePairwiseOnDemand]: 233/239 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2023-08-29 20:51:57,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 119 transitions, 1177 flow [2023-08-29 20:51:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 20:51:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 20:51:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1055 transitions. [2023-08-29 20:51:57,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44142259414225943 [2023-08-29 20:51:57,599 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1055 transitions. [2023-08-29 20:51:57,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1055 transitions. [2023-08-29 20:51:57,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 20:51:57,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1055 transitions. [2023-08-29 20:51:57,602 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) [2023-08-29 20:51:57,604 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) [2023-08-29 20:51:57,604 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) [2023-08-29 20:51:57,604 INFO L175 Difference]: Start difference. First operand has 86 places, 60 transitions, 506 flow. Second operand 10 states and 1055 transitions. [2023-08-29 20:51:57,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 119 transitions, 1177 flow [2023-08-29 20:51:57,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 119 transitions, 1123 flow, removed 11 selfloop flow, removed 6 redundant places. [2023-08-29 20:51:57,612 INFO L231 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2023-08-29 20:51:57,612 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} [2023-08-29 20:51:57,613 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 43 predicate places. [2023-08-29 20:51:57,613 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2023-08-29 20:51:57,613 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) [2023-08-29 20:51:57,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-08-29 20:51:57,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2023-08-29 20:51:57,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-08-29 20:51:57,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-08-29 20:51:57,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-08-29 20:51:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-08-29 20:51:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-08-29 20:51:57,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 20:51:57,619 INFO L445 BasicCegarLoop]: Path program histogram: [8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 20:51:57,623 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 20:51:57,623 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 20:51:57,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:51:57 BasicIcfg [2023-08-29 20:51:57,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 20:51:57,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 20:51:57,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 20:51:57,626 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 20:51:57,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:51:29" (3/4) ... [2023-08-29 20:51:57,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 20:51:57,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-29 20:51:57,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-29 20:51:57,631 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-29 20:51:57,635 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-08-29 20:51:57,635 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-08-29 20:51:57,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 20:51:57,636 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 20:51:57,666 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 20:51:57,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 20:51:57,667 INFO L158 Benchmark]: Toolchain (without parser) took 29918.97ms. Allocated memory was 73.4MB in the beginning and 853.5MB in the end (delta: 780.1MB). Free memory was 50.8MB in the beginning and 580.5MB in the end (delta: -529.6MB). Peak memory consumption was 248.9MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,667 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 38.7MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 20:51:57,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.32ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 43.0MB in the end (delta: 7.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.95ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 39.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,668 INFO L158 Benchmark]: Boogie Preprocessor took 48.86ms. Allocated memory is still 73.4MB. Free memory was 39.6MB in the beginning and 37.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,668 INFO L158 Benchmark]: RCFGBuilder took 715.05ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.8MB in the beginning and 53.6MB in the end (delta: -16.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,668 INFO L158 Benchmark]: TraceAbstraction took 28598.94ms. Allocated memory was 88.1MB in the beginning and 853.5MB in the end (delta: 765.5MB). Free memory was 53.2MB in the beginning and 584.7MB in the end (delta: -531.4MB). Peak memory consumption was 234.0MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,668 INFO L158 Benchmark]: Witness Printer took 40.68ms. Allocated memory is still 853.5MB. Free memory was 584.7MB in the beginning and 580.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 20:51:57,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 38.7MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.32ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 43.0MB in the end (delta: 7.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.95ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 39.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.86ms. Allocated memory is still 73.4MB. Free memory was 39.6MB in the beginning and 37.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 715.05ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.8MB in the beginning and 53.6MB in the end (delta: -16.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 28598.94ms. Allocated memory was 88.1MB in the beginning and 853.5MB in the end (delta: 765.5MB). Free memory was 53.2MB in the beginning and 584.7MB in the end (delta: -531.4MB). Peak memory consumption was 234.0MB. Max. memory is 16.1GB. * Witness Printer took 40.68ms. Allocated memory is still 853.5MB. Free memory was 584.7MB in the beginning and 580.5MB in the end (delta: 4.2MB). 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: 4.8s, 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: 28.5s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1120 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 919 mSDsluCounter, 679 SdHoareTripleChecker+Invalid, 3.1s 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, 1.1s 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: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 14.3s 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! [2023-08-29 20:51:57,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE