./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58dc011fd2a961d9f4b52b23fa43b2842c59061a7eec6829cf4a27698c4c4b05 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:06:29,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:06:29,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:06:29,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:06:29,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:06:29,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:06:29,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:06:29,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:06:29,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:06:29,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:06:29,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:06:29,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:06:29,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:06:29,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:06:29,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:06:29,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:06:29,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:06:29,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:06:29,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:06:29,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:06:29,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:06:29,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:06:29,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:06:29,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:06:29,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:06:29,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:06:29,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:06:29,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:06:29,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:06:29,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:06:29,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:06:29,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:06:29,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:06:29,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:06:29,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:06:29,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:06:29,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:06:29,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:06:29,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:06:29,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:06:29,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:06:29,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:06:29,292 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:06:29,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:06:29,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:06:29,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:06:29,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:06:29,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:06:29,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:06:29,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:06:29,295 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:06:29,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:06:29,296 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:06:29,296 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:06:29,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:06:29,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:06:29,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:06:29,297 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:06:29,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:06:29,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:06:29,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:06:29,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:06:29,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:06:29,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:06:29,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:06:29,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:06:29,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:06:29,299 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:06:29,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:06:29,299 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:06:29,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58dc011fd2a961d9f4b52b23fa43b2842c59061a7eec6829cf4a27698c4c4b05 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:06:29,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:06:29,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:06:29,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:06:29,568 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:06:29,569 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:06:29,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:06:30,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:06:30,760 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:06:30,761 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:06:30,772 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11afcee7c/8cb3329a9fb44d12889c3751e573aa68/FLAG7e1f0f4d7 [2023-08-30 03:06:30,786 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11afcee7c/8cb3329a9fb44d12889c3751e573aa68 [2023-08-30 03:06:30,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:06:30,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:06:30,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:06:30,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:06:30,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:06:30,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:06:30" (1/1) ... [2023-08-30 03:06:30,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61be9f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:30, skipping insertion in model container [2023-08-30 03:06:30,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:06:30" (1/1) ... [2023-08-30 03:06:30,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:06:30,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:06:30,967 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-08-30 03:06:31,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:06:31,092 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:06:31,112 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-08-30 03:06:31,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:06:31,163 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:06:31,163 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:06:31,167 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:06:31,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31 WrapperNode [2023-08-30 03:06:31,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:06:31,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:06:31,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:06:31,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:06:31,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,204 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-08-30 03:06:31,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:06:31,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:06:31,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:06:31,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:06:31,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:06:31,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:06:31,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:06:31,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:06:31,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (1/1) ... [2023-08-30 03:06:31,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:06:31,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:06:31,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:06:31,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:06:31,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:06:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:06:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:06:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:06:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:06:31,280 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:06:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:06:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:06:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:06:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 03:06:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 03:06:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:06:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:06:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:06:31,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:06:31,282 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:06:31,399 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:06:31,400 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:06:31,584 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:06:31,591 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:06:31,592 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:06:31,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:06:31 BoogieIcfgContainer [2023-08-30 03:06:31,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:06:31,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:06:31,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:06:31,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:06:31,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:06:30" (1/3) ... [2023-08-30 03:06:31,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45db3e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:06:31, skipping insertion in model container [2023-08-30 03:06:31,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:06:31" (2/3) ... [2023-08-30 03:06:31,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45db3e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:06:31, skipping insertion in model container [2023-08-30 03:06:31,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:06:31" (3/3) ... [2023-08-30 03:06:31,600 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-30 03:06:31,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:06:31,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 03:06:31,611 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:06:31,687 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:06:31,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2023-08-30 03:06:31,763 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2023-08-30 03:06:31,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:06:31,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-08-30 03:06:31,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 207 flow [2023-08-30 03:06:31,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 89 transitions, 187 flow [2023-08-30 03:06:31,772 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:06:31,781 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 89 transitions, 187 flow [2023-08-30 03:06:31,790 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 89 transitions, 187 flow [2023-08-30 03:06:31,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 187 flow [2023-08-30 03:06:31,815 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2023-08-30 03:06:31,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:06:31,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-30 03:06:31,818 INFO L119 LiptonReduction]: Number of co-enabled transitions 1512 [2023-08-30 03:06:33,786 INFO L134 LiptonReduction]: Checked pairs total: 3057 [2023-08-30 03:06:33,786 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-08-30 03:06:33,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:06:33,804 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;@13cb69a7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:06:33,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 03:06:33,806 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:06:33,806 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:06:33,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:33,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:06:33,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:33,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:33,811 INFO L85 PathProgramCache]: Analyzing trace with hash 341, now seen corresponding path program 1 times [2023-08-30 03:06:33,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:33,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213097311] [2023-08-30 03:06:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:33,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:33,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213097311] [2023-08-30 03:06:33,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213097311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:33,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:33,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:06:33,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19013581] [2023-08-30 03:06:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:33,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:06:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:33,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:06:33,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:06:33,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 187 [2023-08-30 03:06:33,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:33,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:33,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 187 [2023-08-30 03:06:33,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:34,021 INFO L130 PetriNetUnfolder]: 272/454 cut-off events. [2023-08-30 03:06:34,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:06:34,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 454 events. 272/454 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1974 event pairs, 272 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 906. Up to 433 conditions per place. [2023-08-30 03:06:34,026 INFO L137 encePairwiseOnDemand]: 180/187 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-30 03:06:34,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2023-08-30 03:06:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:06:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:06:34,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 203 transitions. [2023-08-30 03:06:34,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427807486631016 [2023-08-30 03:06:34,038 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 203 transitions. [2023-08-30 03:06:34,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 203 transitions. [2023-08-30 03:06:34,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:34,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 203 transitions. [2023-08-30 03:06:34,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,052 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,053 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 203 transitions. [2023-08-30 03:06:34,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2023-08-30 03:06:34,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 03:06:34,061 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-08-30 03:06:34,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 03:06:34,065 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-08-30 03:06:34,065 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-08-30 03:06:34,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:34,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:34,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:06:34,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:34,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:34,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1763924736, now seen corresponding path program 1 times [2023-08-30 03:06:34,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:34,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758616532] [2023-08-30 03:06:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:34,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:34,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:34,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:34,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758616532] [2023-08-30 03:06:34,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758616532] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:34,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:34,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:06:34,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118537911] [2023-08-30 03:06:34,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:34,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:06:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:34,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:06:34,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:06:34,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 187 [2023-08-30 03:06:34,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 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) [2023-08-30 03:06:34,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:34,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 187 [2023-08-30 03:06:34,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:34,712 INFO L130 PetriNetUnfolder]: 372/650 cut-off events. [2023-08-30 03:06:34,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:06:34,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 650 events. 372/650 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3274 event pairs, 127 based on Foata normal form. 0/626 useless extension candidates. Maximal degree in co-relation 1289. Up to 267 conditions per place. [2023-08-30 03:06:34,718 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 34 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2023-08-30 03:06:34,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 42 transitions, 172 flow [2023-08-30 03:06:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:06:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:06:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 491 transitions. [2023-08-30 03:06:34,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4376114081996435 [2023-08-30 03:06:34,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 491 transitions. [2023-08-30 03:06:34,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 491 transitions. [2023-08-30 03:06:34,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:34,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 491 transitions. [2023-08-30 03:06:34,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,728 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 491 transitions. [2023-08-30 03:06:34,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 42 transitions, 172 flow [2023-08-30 03:06:34,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 42 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:06:34,729 INFO L231 Difference]: Finished difference. Result has 35 places, 21 transitions, 70 flow [2023-08-30 03:06:34,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=70, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2023-08-30 03:06:34,730 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-30 03:06:34,730 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 21 transitions, 70 flow [2023-08-30 03:06:34,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 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) [2023-08-30 03:06:34,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:34,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:34,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:06:34,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:34,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:34,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1763924700, now seen corresponding path program 1 times [2023-08-30 03:06:34,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:34,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332238549] [2023-08-30 03:06:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:34,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:34,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:34,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332238549] [2023-08-30 03:06:34,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332238549] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:34,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:34,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:06:34,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871590628] [2023-08-30 03:06:34,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:34,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:06:34,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:34,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:06:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:06:34,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 187 [2023-08-30 03:06:34,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 21 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:34,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:34,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 187 [2023-08-30 03:06:34,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:34,995 INFO L130 PetriNetUnfolder]: 394/709 cut-off events. [2023-08-30 03:06:34,995 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2023-08-30 03:06:34,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 709 events. 394/709 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3840 event pairs, 241 based on Foata normal form. 27/733 useless extension candidates. Maximal degree in co-relation 1545. Up to 536 conditions per place. [2023-08-30 03:06:34,998 INFO L137 encePairwiseOnDemand]: 180/187 looper letters, 26 selfloop transitions, 6 changer transitions 5/40 dead transitions. [2023-08-30 03:06:34,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 40 transitions, 208 flow [2023-08-30 03:06:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:06:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:06:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 451 transitions. [2023-08-30 03:06:34,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2023-08-30 03:06:34,999 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 451 transitions. [2023-08-30 03:06:34,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 451 transitions. [2023-08-30 03:06:34,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:34,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 451 transitions. [2023-08-30 03:06:35,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,002 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,002 INFO L175 Difference]: Start difference. First operand has 35 places, 21 transitions, 70 flow. Second operand 5 states and 451 transitions. [2023-08-30 03:06:35,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 40 transitions, 208 flow [2023-08-30 03:06:35,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 40 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:06:35,003 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 118 flow [2023-08-30 03:06:35,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-08-30 03:06:35,004 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-08-30 03:06:35,004 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 118 flow [2023-08-30 03:06:35,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:35,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:35,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:06:35,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:35,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1152911817, now seen corresponding path program 1 times [2023-08-30 03:06:35,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:35,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367580280] [2023-08-30 03:06:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:35,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:35,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:35,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367580280] [2023-08-30 03:06:35,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367580280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:35,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:35,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:06:35,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181459251] [2023-08-30 03:06:35,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:35,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:06:35,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:35,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:06:35,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:06:35,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 187 [2023-08-30 03:06:35,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:35,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 187 [2023-08-30 03:06:35,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:35,193 INFO L130 PetriNetUnfolder]: 367/663 cut-off events. [2023-08-30 03:06:35,193 INFO L131 PetriNetUnfolder]: For 835/835 co-relation queries the response was YES. [2023-08-30 03:06:35,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1948 conditions, 663 events. 367/663 cut-off events. For 835/835 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3544 event pairs, 75 based on Foata normal form. 42/701 useless extension candidates. Maximal degree in co-relation 1938. Up to 333 conditions per place. [2023-08-30 03:06:35,196 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 32 selfloop transitions, 6 changer transitions 2/43 dead transitions. [2023-08-30 03:06:35,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 290 flow [2023-08-30 03:06:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:06:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:06:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 451 transitions. [2023-08-30 03:06:35,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2023-08-30 03:06:35,198 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 451 transitions. [2023-08-30 03:06:35,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 451 transitions. [2023-08-30 03:06:35,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:35,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 451 transitions. [2023-08-30 03:06:35,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,201 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,201 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 118 flow. Second operand 5 states and 451 transitions. [2023-08-30 03:06:35,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 290 flow [2023-08-30 03:06:35,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 277 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 03:06:35,204 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 158 flow [2023-08-30 03:06:35,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2023-08-30 03:06:35,204 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-08-30 03:06:35,205 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 158 flow [2023-08-30 03:06:35,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:35,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:35,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:06:35,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:35,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 186378363, now seen corresponding path program 1 times [2023-08-30 03:06:35,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:35,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064533177] [2023-08-30 03:06:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:35,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:35,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:35,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064533177] [2023-08-30 03:06:35,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064533177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:35,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:35,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:06:35,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655344108] [2023-08-30 03:06:35,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:35,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:06:35,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:35,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:06:35,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:06:35,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 187 [2023-08-30 03:06:35,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:35,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 187 [2023-08-30 03:06:35,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:35,677 INFO L130 PetriNetUnfolder]: 534/1020 cut-off events. [2023-08-30 03:06:35,677 INFO L131 PetriNetUnfolder]: For 1754/1754 co-relation queries the response was YES. [2023-08-30 03:06:35,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3146 conditions, 1020 events. 534/1020 cut-off events. For 1754/1754 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6575 event pairs, 271 based on Foata normal form. 30/1040 useless extension candidates. Maximal degree in co-relation 3134. Up to 391 conditions per place. [2023-08-30 03:06:35,681 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 41 selfloop transitions, 9 changer transitions 4/57 dead transitions. [2023-08-30 03:06:35,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 426 flow [2023-08-30 03:06:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:06:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:06:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-08-30 03:06:35,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4385026737967914 [2023-08-30 03:06:35,683 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-08-30 03:06:35,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-08-30 03:06:35,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:35,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-08-30 03:06:35,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,686 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,686 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 158 flow. Second operand 6 states and 492 transitions. [2023-08-30 03:06:35,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 426 flow [2023-08-30 03:06:35,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 57 transitions, 426 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:06:35,689 INFO L231 Difference]: Finished difference. Result has 54 places, 34 transitions, 232 flow [2023-08-30 03:06:35,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=54, PETRI_TRANSITIONS=34} [2023-08-30 03:06:35,690 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2023-08-30 03:06:35,690 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 232 flow [2023-08-30 03:06:35,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:35,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:35,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:06:35,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:35,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:35,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1152898363, now seen corresponding path program 1 times [2023-08-30 03:06:35,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:35,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698425792] [2023-08-30 03:06:35,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:35,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:35,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:35,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698425792] [2023-08-30 03:06:35,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698425792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:35,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:35,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:06:35,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474092616] [2023-08-30 03:06:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:35,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:06:35,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:35,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:06:35,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:06:35,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-08-30 03:06:35,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 232 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:35,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:35,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-08-30 03:06:35,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:36,023 INFO L130 PetriNetUnfolder]: 1120/2026 cut-off events. [2023-08-30 03:06:36,023 INFO L131 PetriNetUnfolder]: For 4219/4219 co-relation queries the response was YES. [2023-08-30 03:06:36,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6210 conditions, 2026 events. 1120/2026 cut-off events. For 4219/4219 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 14207 event pairs, 223 based on Foata normal form. 116/2128 useless extension candidates. Maximal degree in co-relation 6193. Up to 797 conditions per place. [2023-08-30 03:06:36,032 INFO L137 encePairwiseOnDemand]: 179/187 looper letters, 55 selfloop transitions, 23 changer transitions 7/87 dead transitions. [2023-08-30 03:06:36,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 87 transitions, 726 flow [2023-08-30 03:06:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 03:06:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 03:06:36,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 802 transitions. [2023-08-30 03:06:36,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47653000594177064 [2023-08-30 03:06:36,034 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 802 transitions. [2023-08-30 03:06:36,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 802 transitions. [2023-08-30 03:06:36,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:36,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 802 transitions. [2023-08-30 03:06:36,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.11111111111111) internal successors, (802), 9 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 187.0) internal successors, (1870), 10 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,037 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 187.0) internal successors, (1870), 10 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,038 INFO L175 Difference]: Start difference. First operand has 54 places, 34 transitions, 232 flow. Second operand 9 states and 802 transitions. [2023-08-30 03:06:36,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 87 transitions, 726 flow [2023-08-30 03:06:36,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 717 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-30 03:06:36,042 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 482 flow [2023-08-30 03:06:36,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=482, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2023-08-30 03:06:36,043 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 34 predicate places. [2023-08-30 03:06:36,043 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 482 flow [2023-08-30 03:06:36,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:36,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:36,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:06:36,043 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:36,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash -958616748, now seen corresponding path program 1 times [2023-08-30 03:06:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:36,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376109960] [2023-08-30 03:06:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:36,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:36,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376109960] [2023-08-30 03:06:36,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376109960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:36,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:36,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:06:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177664917] [2023-08-30 03:06:36,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:36,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:06:36,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:36,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:06:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:06:36,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 187 [2023-08-30 03:06:36,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 482 flow. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:36,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 187 [2023-08-30 03:06:36,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:36,705 INFO L130 PetriNetUnfolder]: 1767/3111 cut-off events. [2023-08-30 03:06:36,706 INFO L131 PetriNetUnfolder]: For 15515/15539 co-relation queries the response was YES. [2023-08-30 03:06:36,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11611 conditions, 3111 events. 1767/3111 cut-off events. For 15515/15539 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 22312 event pairs, 1073 based on Foata normal form. 88/3151 useless extension candidates. Maximal degree in co-relation 11587. Up to 1018 conditions per place. [2023-08-30 03:06:36,722 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 62 selfloop transitions, 13 changer transitions 10/90 dead transitions. [2023-08-30 03:06:36,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 90 transitions, 982 flow [2023-08-30 03:06:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:06:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:06:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-08-30 03:06:36,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43137254901960786 [2023-08-30 03:06:36,724 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 484 transitions. [2023-08-30 03:06:36,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 484 transitions. [2023-08-30 03:06:36,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:36,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 484 transitions. [2023-08-30 03:06:36,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,727 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,727 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 482 flow. Second operand 6 states and 484 transitions. [2023-08-30 03:06:36,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 90 transitions, 982 flow [2023-08-30 03:06:36,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 90 transitions, 933 flow, removed 23 selfloop flow, removed 1 redundant places. [2023-08-30 03:06:36,758 INFO L231 Difference]: Finished difference. Result has 75 places, 51 transitions, 525 flow [2023-08-30 03:06:36,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=75, PETRI_TRANSITIONS=51} [2023-08-30 03:06:36,758 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 40 predicate places. [2023-08-30 03:06:36,758 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 51 transitions, 525 flow [2023-08-30 03:06:36,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:36,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:36,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:36,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:06:36,759 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:36,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:36,760 INFO L85 PathProgramCache]: Analyzing trace with hash -560141704, now seen corresponding path program 2 times [2023-08-30 03:06:36,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:36,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950199271] [2023-08-30 03:06:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:36,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:37,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:37,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950199271] [2023-08-30 03:06:37,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950199271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:37,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:37,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:06:37,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684747959] [2023-08-30 03:06:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:37,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:06:37,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:37,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:06:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:06:37,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 187 [2023-08-30 03:06:37,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 51 transitions, 525 flow. Second operand has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:37,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:37,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 187 [2023-08-30 03:06:37,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:37,604 INFO L130 PetriNetUnfolder]: 2415/4466 cut-off events. [2023-08-30 03:06:37,604 INFO L131 PetriNetUnfolder]: For 16163/16197 co-relation queries the response was YES. [2023-08-30 03:06:37,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15299 conditions, 4466 events. 2415/4466 cut-off events. For 16163/16197 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 34817 event pairs, 1907 based on Foata normal form. 103/4514 useless extension candidates. Maximal degree in co-relation 15273. Up to 1665 conditions per place. [2023-08-30 03:06:37,629 INFO L137 encePairwiseOnDemand]: 181/187 looper letters, 69 selfloop transitions, 16 changer transitions 10/100 dead transitions. [2023-08-30 03:06:37,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 100 transitions, 1105 flow [2023-08-30 03:06:37,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:06:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:06:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 628 transitions. [2023-08-30 03:06:37,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197860962566845 [2023-08-30 03:06:37,632 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 628 transitions. [2023-08-30 03:06:37,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 628 transitions. [2023-08-30 03:06:37,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:37,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 628 transitions. [2023-08-30 03:06:37,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 78.5) internal successors, (628), 8 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:37,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 187.0) internal successors, (1683), 9 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:37,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 187.0) internal successors, (1683), 9 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:37,635 INFO L175 Difference]: Start difference. First operand has 75 places, 51 transitions, 525 flow. Second operand 8 states and 628 transitions. [2023-08-30 03:06:37,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 100 transitions, 1105 flow [2023-08-30 03:06:37,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 100 transitions, 1053 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-08-30 03:06:37,767 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 637 flow [2023-08-30 03:06:37,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=637, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2023-08-30 03:06:37,767 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 46 predicate places. [2023-08-30 03:06:37,767 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 637 flow [2023-08-30 03:06:37,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:37,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:37,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:37,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:06:37,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:37,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1380113554, now seen corresponding path program 1 times [2023-08-30 03:06:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:37,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899579109] [2023-08-30 03:06:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:37,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:37,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:37,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899579109] [2023-08-30 03:06:37,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899579109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:37,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:37,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:06:37,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586626666] [2023-08-30 03:06:37,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:37,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:06:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:37,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:06:37,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:06:37,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-08-30 03:06:37,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 637 flow. Second operand has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:37,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:37,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-08-30 03:06:37,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:38,445 INFO L130 PetriNetUnfolder]: 3141/5804 cut-off events. [2023-08-30 03:06:38,445 INFO L131 PetriNetUnfolder]: For 19399/19431 co-relation queries the response was YES. [2023-08-30 03:06:38,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19659 conditions, 5804 events. 3141/5804 cut-off events. For 19399/19431 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 48568 event pairs, 421 based on Foata normal form. 84/5880 useless extension candidates. Maximal degree in co-relation 19631. Up to 2807 conditions per place. [2023-08-30 03:06:38,479 INFO L137 encePairwiseOnDemand]: 179/187 looper letters, 67 selfloop transitions, 30 changer transitions 15/121 dead transitions. [2023-08-30 03:06:38,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 121 transitions, 1353 flow [2023-08-30 03:06:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 03:06:38,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 03:06:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 794 transitions. [2023-08-30 03:06:38,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47177658942364825 [2023-08-30 03:06:38,482 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 794 transitions. [2023-08-30 03:06:38,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 794 transitions. [2023-08-30 03:06:38,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:38,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 794 transitions. [2023-08-30 03:06:38,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.22222222222223) internal successors, (794), 9 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:38,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 187.0) internal successors, (1870), 10 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:38,486 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 187.0) internal successors, (1870), 10 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:38,486 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 637 flow. Second operand 9 states and 794 transitions. [2023-08-30 03:06:38,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 121 transitions, 1353 flow [2023-08-30 03:06:38,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 121 transitions, 1335 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-30 03:06:38,531 INFO L231 Difference]: Finished difference. Result has 96 places, 79 transitions, 984 flow [2023-08-30 03:06:38,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=984, PETRI_PLACES=96, PETRI_TRANSITIONS=79} [2023-08-30 03:06:38,532 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 61 predicate places. [2023-08-30 03:06:38,532 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 79 transitions, 984 flow [2023-08-30 03:06:38,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:38,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:38,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:38,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:06:38,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:38,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:38,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1380106827, now seen corresponding path program 1 times [2023-08-30 03:06:38,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:38,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388759128] [2023-08-30 03:06:38,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:38,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:38,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:38,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388759128] [2023-08-30 03:06:38,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388759128] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:38,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:38,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:06:38,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448715175] [2023-08-30 03:06:38,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:38,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:06:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:38,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:06:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:06:38,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 187 [2023-08-30 03:06:38,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 79 transitions, 984 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:38,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:38,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 187 [2023-08-30 03:06:38,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:39,013 INFO L130 PetriNetUnfolder]: 2070/4204 cut-off events. [2023-08-30 03:06:39,013 INFO L131 PetriNetUnfolder]: For 24678/24730 co-relation queries the response was YES. [2023-08-30 03:06:39,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16583 conditions, 4204 events. 2070/4204 cut-off events. For 24678/24730 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 36375 event pairs, 1532 based on Foata normal form. 88/4260 useless extension candidates. Maximal degree in co-relation 16547. Up to 3178 conditions per place. [2023-08-30 03:06:39,039 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 59 selfloop transitions, 24 changer transitions 9/104 dead transitions. [2023-08-30 03:06:39,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 104 transitions, 1417 flow [2023-08-30 03:06:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:06:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:06:39,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 451 transitions. [2023-08-30 03:06:39,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2023-08-30 03:06:39,041 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 451 transitions. [2023-08-30 03:06:39,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 451 transitions. [2023-08-30 03:06:39,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:39,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 451 transitions. [2023-08-30 03:06:39,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,043 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,043 INFO L175 Difference]: Start difference. First operand has 96 places, 79 transitions, 984 flow. Second operand 5 states and 451 transitions. [2023-08-30 03:06:39,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 104 transitions, 1417 flow [2023-08-30 03:06:39,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 1385 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-08-30 03:06:39,106 INFO L231 Difference]: Finished difference. Result has 101 places, 82 transitions, 1097 flow [2023-08-30 03:06:39,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1097, PETRI_PLACES=101, PETRI_TRANSITIONS=82} [2023-08-30 03:06:39,107 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 66 predicate places. [2023-08-30 03:06:39,107 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 82 transitions, 1097 flow [2023-08-30 03:06:39,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:39,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:39,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:06:39,108 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:39,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1730541238, now seen corresponding path program 1 times [2023-08-30 03:06:39,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:39,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590372758] [2023-08-30 03:06:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:39,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:39,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:39,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590372758] [2023-08-30 03:06:39,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590372758] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:39,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:39,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:06:39,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830096421] [2023-08-30 03:06:39,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:39,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:06:39,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:39,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:06:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:06:39,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-08-30 03:06:39,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 82 transitions, 1097 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:39,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-08-30 03:06:39,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:39,750 INFO L130 PetriNetUnfolder]: 2648/5074 cut-off events. [2023-08-30 03:06:39,751 INFO L131 PetriNetUnfolder]: For 28180/28290 co-relation queries the response was YES. [2023-08-30 03:06:39,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19555 conditions, 5074 events. 2648/5074 cut-off events. For 28180/28290 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 42887 event pairs, 438 based on Foata normal form. 116/5152 useless extension candidates. Maximal degree in co-relation 19516. Up to 1288 conditions per place. [2023-08-30 03:06:39,779 INFO L137 encePairwiseOnDemand]: 181/187 looper letters, 77 selfloop transitions, 19 changer transitions 24/127 dead transitions. [2023-08-30 03:06:39,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 127 transitions, 1856 flow [2023-08-30 03:06:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:06:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:06:39,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2023-08-30 03:06:39,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47135217723453016 [2023-08-30 03:06:39,782 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2023-08-30 03:06:39,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2023-08-30 03:06:39,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:39,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2023-08-30 03:06:39,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,785 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,785 INFO L175 Difference]: Start difference. First operand has 101 places, 82 transitions, 1097 flow. Second operand 7 states and 617 transitions. [2023-08-30 03:06:39,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 127 transitions, 1856 flow [2023-08-30 03:06:39,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 127 transitions, 1731 flow, removed 59 selfloop flow, removed 1 redundant places. [2023-08-30 03:06:39,888 INFO L231 Difference]: Finished difference. Result has 110 places, 75 transitions, 1003 flow [2023-08-30 03:06:39,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=1043, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1003, PETRI_PLACES=110, PETRI_TRANSITIONS=75} [2023-08-30 03:06:39,889 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 75 predicate places. [2023-08-30 03:06:39,889 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 75 transitions, 1003 flow [2023-08-30 03:06:39,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:39,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:39,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:39,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:06:39,890 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:39,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:39,890 INFO L85 PathProgramCache]: Analyzing trace with hash -668207004, now seen corresponding path program 1 times [2023-08-30 03:06:39,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:39,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927160613] [2023-08-30 03:06:39,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:39,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:40,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927160613] [2023-08-30 03:06:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927160613] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:40,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:40,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:06:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597894928] [2023-08-30 03:06:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:40,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:06:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:40,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:06:40,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:06:40,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 187 [2023-08-30 03:06:40,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 75 transitions, 1003 flow. Second operand has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:40,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:40,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 187 [2023-08-30 03:06:40,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:40,777 INFO L130 PetriNetUnfolder]: 2293/4264 cut-off events. [2023-08-30 03:06:40,777 INFO L131 PetriNetUnfolder]: For 30330/30379 co-relation queries the response was YES. [2023-08-30 03:06:40,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17642 conditions, 4264 events. 2293/4264 cut-off events. For 30330/30379 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 33129 event pairs, 1581 based on Foata normal form. 109/4317 useless extension candidates. Maximal degree in co-relation 17599. Up to 2395 conditions per place. [2023-08-30 03:06:40,799 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 60 selfloop transitions, 18 changer transitions 6/94 dead transitions. [2023-08-30 03:06:40,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 94 transitions, 1215 flow [2023-08-30 03:06:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 03:06:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 03:06:40,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 542 transitions. [2023-08-30 03:06:40,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4140565317035905 [2023-08-30 03:06:40,801 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 542 transitions. [2023-08-30 03:06:40,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 542 transitions. [2023-08-30 03:06:40,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:40,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 542 transitions. [2023-08-30 03:06:40,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:40,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:40,804 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 187.0) internal successors, (1496), 8 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:40,805 INFO L175 Difference]: Start difference. First operand has 110 places, 75 transitions, 1003 flow. Second operand 7 states and 542 transitions. [2023-08-30 03:06:40,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 94 transitions, 1215 flow [2023-08-30 03:06:40,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 94 transitions, 1065 flow, removed 24 selfloop flow, removed 21 redundant places. [2023-08-30 03:06:40,884 INFO L231 Difference]: Finished difference. Result has 88 places, 62 transitions, 648 flow [2023-08-30 03:06:40,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=648, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2023-08-30 03:06:40,885 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 53 predicate places. [2023-08-30 03:06:40,885 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 648 flow [2023-08-30 03:06:40,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:40,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:40,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:40,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 03:06:40,886 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:40,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:40,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1288965398, now seen corresponding path program 1 times [2023-08-30 03:06:40,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:40,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591906926] [2023-08-30 03:06:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:40,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:40,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:40,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591906926] [2023-08-30 03:06:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591906926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:40,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:40,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:06:40,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843874360] [2023-08-30 03:06:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:40,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:06:40,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:06:40,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:06:40,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-08-30 03:06:40,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:40,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:40,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-08-30 03:06:40,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:41,317 INFO L130 PetriNetUnfolder]: 2334/4539 cut-off events. [2023-08-30 03:06:41,317 INFO L131 PetriNetUnfolder]: For 18192/18234 co-relation queries the response was YES. [2023-08-30 03:06:41,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16264 conditions, 4539 events. 2334/4539 cut-off events. For 18192/18234 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 37206 event pairs, 645 based on Foata normal form. 114/4648 useless extension candidates. Maximal degree in co-relation 16238. Up to 1486 conditions per place. [2023-08-30 03:06:41,339 INFO L137 encePairwiseOnDemand]: 182/187 looper letters, 29 selfloop transitions, 6 changer transitions 67/104 dead transitions. [2023-08-30 03:06:41,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 104 transitions, 1225 flow [2023-08-30 03:06:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:06:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:06:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 530 transitions. [2023-08-30 03:06:41,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47237076648841353 [2023-08-30 03:06:41,341 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 530 transitions. [2023-08-30 03:06:41,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 530 transitions. [2023-08-30 03:06:41,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:41,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 530 transitions. [2023-08-30 03:06:41,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.33333333333333) internal successors, (530), 6 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,344 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,344 INFO L175 Difference]: Start difference. First operand has 88 places, 62 transitions, 648 flow. Second operand 6 states and 530 transitions. [2023-08-30 03:06:41,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 104 transitions, 1225 flow [2023-08-30 03:06:41,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 104 transitions, 1170 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-30 03:06:41,405 INFO L231 Difference]: Finished difference. Result has 92 places, 31 transitions, 291 flow [2023-08-30 03:06:41,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=92, PETRI_TRANSITIONS=31} [2023-08-30 03:06:41,405 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 57 predicate places. [2023-08-30 03:06:41,405 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 31 transitions, 291 flow [2023-08-30 03:06:41,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:06:41,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:41,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 03:06:41,406 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-08-30 03:06:41,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:06:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -319489194, now seen corresponding path program 1 times [2023-08-30 03:06:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:06:41,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254375212] [2023-08-30 03:06:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:06:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:06:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:06:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:06:41,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:06:41,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254375212] [2023-08-30 03:06:41,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254375212] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:06:41,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:06:41,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:06:41,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767749212] [2023-08-30 03:06:41,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:06:41,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:06:41,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:06:41,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:06:41,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:06:41,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 187 [2023-08-30 03:06:41,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 31 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:06:41,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 187 [2023-08-30 03:06:41,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:06:41,577 INFO L130 PetriNetUnfolder]: 509/937 cut-off events. [2023-08-30 03:06:41,577 INFO L131 PetriNetUnfolder]: For 6445/6449 co-relation queries the response was YES. [2023-08-30 03:06:41,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3551 conditions, 937 events. 509/937 cut-off events. For 6445/6449 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4760 event pairs, 199 based on Foata normal form. 84/1010 useless extension candidates. Maximal degree in co-relation 3523. Up to 396 conditions per place. [2023-08-30 03:06:41,580 INFO L137 encePairwiseOnDemand]: 183/187 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2023-08-30 03:06:41,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 40 transitions, 391 flow [2023-08-30 03:06:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:06:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:06:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2023-08-30 03:06:41,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4572192513368984 [2023-08-30 03:06:41,582 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2023-08-30 03:06:41,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2023-08-30 03:06:41,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:06:41,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2023-08-30 03:06:41,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,585 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,585 INFO L175 Difference]: Start difference. First operand has 92 places, 31 transitions, 291 flow. Second operand 6 states and 513 transitions. [2023-08-30 03:06:41,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 40 transitions, 391 flow [2023-08-30 03:06:41,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 40 transitions, 281 flow, removed 24 selfloop flow, removed 19 redundant places. [2023-08-30 03:06:41,595 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-30 03:06:41,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-30 03:06:41,596 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 26 predicate places. [2023-08-30 03:06:41,596 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-30 03:06:41,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:06:41,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-08-30 03:06:41,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-08-30 03:06:41,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-08-30 03:06:41,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-08-30 03:06:41,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-08-30 03:06:41,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-08-30 03:06:41,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-08-30 03:06:41,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-08-30 03:06:41,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-08-30 03:06:41,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-08-30 03:06:41,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-08-30 03:06:41,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 03:06:41,602 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:06:41,604 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:06:41,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:06:41,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:06:41 BasicIcfg [2023-08-30 03:06:41,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:06:41,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:06:41,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:06:41,608 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:06:41,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:06:31" (3/4) ... [2023-08-30 03:06:41,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:06:41,616 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:06:41,616 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:06:41,616 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 03:06:41,619 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 03:06:41,620 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:06:41,620 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:06:41,620 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:06:41,647 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:06:41,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:06:41,648 INFO L158 Benchmark]: Toolchain (without parser) took 10853.78ms. Allocated memory was 67.1MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 43.5MB in the beginning and 383.7MB in the end (delta: -340.2MB). Peak memory consumption was 617.7MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,648 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 32.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:06:41,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.46ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 39.8MB in the end (delta: 3.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.54ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,649 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 67.1MB. Free memory was 37.7MB in the beginning and 36.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,649 INFO L158 Benchmark]: RCFGBuilder took 368.90ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 39.6MB in the end (delta: -3.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,649 INFO L158 Benchmark]: TraceAbstraction took 10011.85ms. Allocated memory was 67.1MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 38.9MB in the beginning and 386.8MB in the end (delta: -347.9MB). Peak memory consumption was 608.4MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,650 INFO L158 Benchmark]: Witness Printer took 39.65ms. Allocated memory is still 1.0GB. Free memory was 386.8MB in the beginning and 383.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:06:41,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 32.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.46ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 39.8MB in the end (delta: 3.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.54ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 67.1MB. Free memory was 37.7MB in the beginning and 36.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.90ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 39.6MB in the end (delta: -3.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10011.85ms. Allocated memory was 67.1MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 38.9MB in the beginning and 386.8MB in the end (delta: -347.9MB). Peak memory consumption was 608.4MB. Max. memory is 16.1GB. * Witness Printer took 39.65ms. Allocated memory is still 1.0GB. Free memory was 386.8MB in the beginning and 383.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 97 PlacesBefore, 35 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 3057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2119, independent: 2036, independent conditional: 0, independent unconditional: 2036, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 863, independent: 845, independent conditional: 0, independent unconditional: 845, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2119, independent: 1191, independent conditional: 0, independent unconditional: 1191, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 863, unknown conditional: 0, unknown unconditional: 863] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 119 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1074 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 830 mSDsluCounter, 329 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2303 IncrementalHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 77 mSDtfsCounter, 2303 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1097occurred in iteration=10, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 1729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:06:41,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE