./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --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 03:00:11,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:00:11,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:00:11,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:00:11,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:00:11,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:00:11,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:00:11,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:00:11,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:00:11,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:00:11,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:00:11,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:00:11,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:00:11,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:00:11,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:00:11,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:00:11,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:00:11,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:00:11,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:00:11,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:00:11,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:00:11,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:00:11,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:00:11,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:00:11,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:00:11,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:00:11,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:00:11,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:00:11,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:00:11,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:00:11,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:00:11,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:00:11,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:00:11,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:00:11,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:00:11,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:00:11,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:00:11,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:00:11,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:00:11,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:00:11,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:00:11,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:00:12,030 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:00:12,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:00:12,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:00:12,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:00:12,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:00:12,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:00:12,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:00:12,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:00:12,033 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:00:12,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:00:12,034 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:00:12,035 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:00:12,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:00:12,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:00:12,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:00:12,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:00:12,036 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:00:12,036 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:00:12,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:00:12,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:00:12,036 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:00:12,037 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:00:12,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:00:12,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:00:12,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:00:12,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:00:12,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:00:12,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:00:12,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:00:12,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:00:12,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:00:12,039 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:00:12,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:00:12,039 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:00:12,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:00:12,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:00:12,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:00:12,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:00:12,365 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:00:12,365 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:00:12,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 03:00:13,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:00:13,859 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:00:13,860 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 03:00:13,876 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddbf3570/1699b7737bbb4ca7998f2beda161acdc/FLAG5e2212665 [2023-08-30 03:00:13,892 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ddbf3570/1699b7737bbb4ca7998f2beda161acdc [2023-08-30 03:00:13,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:00:13,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:00:13,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:00:13,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:00:13,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:00:13,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:00:13" (1/1) ... [2023-08-30 03:00:13,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579cb33c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:13, skipping insertion in model container [2023-08-30 03:00:13,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:00:13" (1/1) ... [2023-08-30 03:00:13,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:00:13,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:00:14,074 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-08-30 03:00:14,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:00:14,336 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:00:14,347 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2023-08-30 03:00:14,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:00:14,436 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:00:14,436 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:00:14,442 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:00:14,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14 WrapperNode [2023-08-30 03:00:14,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:00:14,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:00:14,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:00:14,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:00:14,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,511 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2023-08-30 03:00:14,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:00:14,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:00:14,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:00:14,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:00:14,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,542 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:00:14,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:00:14,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:00:14,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:00:14,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (1/1) ... [2023-08-30 03:00:14,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:00:14,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:00:14,578 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 03:00:14,593 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 03:00:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:00:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:00:14,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:00:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:00:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:00:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 03:00:14,618 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 03:00:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 03:00:14,618 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 03:00:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:00:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:00:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:00:14,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:00:14,620 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 03:00:14,782 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:00:14,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:00:15,195 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:00:15,445 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:00:15,445 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:00:15,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:00:15 BoogieIcfgContainer [2023-08-30 03:00:15,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:00:15,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:00:15,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:00:15,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:00:15,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:00:13" (1/3) ... [2023-08-30 03:00:15,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6ed466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:00:15, skipping insertion in model container [2023-08-30 03:00:15,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:00:14" (2/3) ... [2023-08-30 03:00:15,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6ed466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:00:15, skipping insertion in model container [2023-08-30 03:00:15,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:00:15" (3/3) ... [2023-08-30 03:00:15,458 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-08-30 03:00:15,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:00:15,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-30 03:00:15,474 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:00:15,529 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:00:15,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 210 flow [2023-08-30 03:00:15,624 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2023-08-30 03:00:15,625 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:00:15,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 2/98 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. 0/89 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2023-08-30 03:00:15,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 100 transitions, 210 flow [2023-08-30 03:00:15,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 98 transitions, 202 flow [2023-08-30 03:00:15,645 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:00:15,666 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 98 transitions, 202 flow [2023-08-30 03:00:15,672 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 98 transitions, 202 flow [2023-08-30 03:00:15,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 202 flow [2023-08-30 03:00:15,702 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2023-08-30 03:00:15,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:00:15,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 2/98 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. 0/89 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2023-08-30 03:00:15,705 INFO L119 LiptonReduction]: Number of co-enabled transitions 1384 [2023-08-30 03:00:20,388 INFO L134 LiptonReduction]: Checked pairs total: 3967 [2023-08-30 03:00:20,392 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-30 03:00:20,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:00:20,457 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;@40cf0386, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:00:20,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-30 03:00:20,461 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:00:20,461 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:00:20,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:20,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:00:20,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:20,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 523, now seen corresponding path program 1 times [2023-08-30 03:00:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:20,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813030111] [2023-08-30 03:00:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:20,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:20,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:00:20,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:20,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813030111] [2023-08-30 03:00:20,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813030111] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:20,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:20,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:00:20,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605779763] [2023-08-30 03:00:20,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:20,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:00:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:20,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:00:20,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:00:20,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 195 [2023-08-30 03:00:20,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 03:00:20,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:20,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 195 [2023-08-30 03:00:20,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:20,869 INFO L130 PetriNetUnfolder]: 395/660 cut-off events. [2023-08-30 03:00:20,870 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 03:00:20,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 660 events. 395/660 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2585 event pairs, 395 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 1328. Up to 661 conditions per place. [2023-08-30 03:00:20,879 INFO L137 encePairwiseOnDemand]: 191/195 looper letters, 20 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-08-30 03:00:20,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 86 flow [2023-08-30 03:00:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:00:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:00:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-08-30 03:00:20,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025641025641026 [2023-08-30 03:00:20,897 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-08-30 03:00:20,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-08-30 03:00:20,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:20,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-08-30 03:00:20,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 03:00:20,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states 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 03:00:20,914 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states 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 03:00:20,915 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 2 states and 196 transitions. [2023-08-30 03:00:20,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 86 flow [2023-08-30 03:00:20,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:20,920 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 44 flow [2023-08-30 03:00:20,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-30 03:00:20,925 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-08-30 03:00:20,926 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 44 flow [2023-08-30 03:00:20,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 03:00:20,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:20,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:00:20,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:00:20,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:20,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:20,936 INFO L85 PathProgramCache]: Analyzing trace with hash 496286591, now seen corresponding path program 1 times [2023-08-30 03:00:20,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:20,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627668336] [2023-08-30 03:00:20,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:20,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:21,224 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 03:00:21,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:21,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627668336] [2023-08-30 03:00:21,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627668336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:21,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:21,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:00:21,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829822343] [2023-08-30 03:00:21,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:21,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:00:21,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:21,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:00:21,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:00:21,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2023-08-30 03:00:21,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 03:00:21,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:21,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2023-08-30 03:00:21,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:21,401 INFO L130 PetriNetUnfolder]: 335/564 cut-off events. [2023-08-30 03:00:21,401 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:00:21,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 564 events. 335/564 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2284 event pairs, 35 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1142. Up to 481 conditions per place. [2023-08-30 03:00:21,405 INFO L137 encePairwiseOnDemand]: 192/195 looper letters, 25 selfloop transitions, 2 changer transitions 2/29 dead transitions. [2023-08-30 03:00:21,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 120 flow [2023-08-30 03:00:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:00:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:00:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2023-08-30 03:00:21,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-08-30 03:00:21,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2023-08-30 03:00:21,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2023-08-30 03:00:21,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:21,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2023-08-30 03:00:21,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states 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 03:00:21,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 03:00:21,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 03:00:21,417 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 44 flow. Second operand 3 states and 285 transitions. [2023-08-30 03:00:21,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 120 flow [2023-08-30 03:00:21,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:00:21,419 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-08-30 03:00:21,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-30 03:00:21,420 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-08-30 03:00:21,420 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-08-30 03:00:21,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 03:00:21,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:21,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:21,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:00:21,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:21,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:21,422 INFO L85 PathProgramCache]: Analyzing trace with hash 190091985, now seen corresponding path program 1 times [2023-08-30 03:00:21,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:21,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384216313] [2023-08-30 03:00:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:21,830 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 03:00:21,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:21,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384216313] [2023-08-30 03:00:21,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384216313] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:21,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:21,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:00:21,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498281018] [2023-08-30 03:00:21,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:21,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:21,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:21,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:21,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:21,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 195 [2023-08-30 03:00:21,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 03:00:21,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:21,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 195 [2023-08-30 03:00:21,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:22,069 INFO L130 PetriNetUnfolder]: 334/584 cut-off events. [2023-08-30 03:00:22,070 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-30 03:00:22,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1232 conditions, 584 events. 334/584 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2307 event pairs, 284 based on Foata normal form. 0/566 useless extension candidates. Maximal degree in co-relation 1228. Up to 362 conditions per place. [2023-08-30 03:00:22,073 INFO L137 encePairwiseOnDemand]: 191/195 looper letters, 30 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-08-30 03:00:22,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 33 transitions, 144 flow [2023-08-30 03:00:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:22,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-08-30 03:00:22,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-08-30 03:00:22,075 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-08-30 03:00:22,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-08-30 03:00:22,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:22,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-08-30 03:00:22,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states 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 03:00:22,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:22,079 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:22,079 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 4 states and 338 transitions. [2023-08-30 03:00:22,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 33 transitions, 144 flow [2023-08-30 03:00:22,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:22,081 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 60 flow [2023-08-30 03:00:22,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 03:00:22,082 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2023-08-30 03:00:22,082 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 60 flow [2023-08-30 03:00:22,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 03:00:22,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:22,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:22,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:00:22,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:22,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:22,084 INFO L85 PathProgramCache]: Analyzing trace with hash 190091970, now seen corresponding path program 1 times [2023-08-30 03:00:22,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:22,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132874184] [2023-08-30 03:00:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:22,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:22,691 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 03:00:22,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132874184] [2023-08-30 03:00:22,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132874184] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:22,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:22,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:00:22,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606988934] [2023-08-30 03:00:22,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:22,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:22,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:22,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:22,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:22,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 195 [2023-08-30 03:00:22,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states 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 03:00:22,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:22,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 195 [2023-08-30 03:00:22,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:22,916 INFO L130 PetriNetUnfolder]: 307/551 cut-off events. [2023-08-30 03:00:22,917 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-08-30 03:00:22,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 551 events. 307/551 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2217 event pairs, 98 based on Foata normal form. 18/569 useless extension candidates. Maximal degree in co-relation 1175. Up to 386 conditions per place. [2023-08-30 03:00:22,920 INFO L137 encePairwiseOnDemand]: 188/195 looper letters, 27 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2023-08-30 03:00:22,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 156 flow [2023-08-30 03:00:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-30 03:00:22,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.441025641025641 [2023-08-30 03:00:22,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-30 03:00:22,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-30 03:00:22,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:22,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-30 03:00:22,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 0 states have call successors, (0), 0 states 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 03:00:22,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:22,929 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:22,930 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 60 flow. Second operand 4 states and 344 transitions. [2023-08-30 03:00:22,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 156 flow [2023-08-30 03:00:22,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:00:22,932 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 102 flow [2023-08-30 03:00:22,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2023-08-30 03:00:22,933 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-30 03:00:22,934 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 102 flow [2023-08-30 03:00:22,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states 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 03:00:22,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:22,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:22,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:00:22,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:22,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:22,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2036001638, now seen corresponding path program 1 times [2023-08-30 03:00:22,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:22,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908220042] [2023-08-30 03:00:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:23,434 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 03:00:23,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:23,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908220042] [2023-08-30 03:00:23,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908220042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:23,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:23,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:00:23,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640442578] [2023-08-30 03:00:23,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:23,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:23,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:23,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:23,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:23,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 195 [2023-08-30 03:00:23,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states 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 03:00:23,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:23,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 195 [2023-08-30 03:00:23,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:23,661 INFO L130 PetriNetUnfolder]: 289/526 cut-off events. [2023-08-30 03:00:23,661 INFO L131 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2023-08-30 03:00:23,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 526 events. 289/526 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2172 event pairs, 171 based on Foata normal form. 12/538 useless extension candidates. Maximal degree in co-relation 1388. Up to 371 conditions per place. [2023-08-30 03:00:23,665 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 26 selfloop transitions, 11 changer transitions 0/37 dead transitions. [2023-08-30 03:00:23,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 218 flow [2023-08-30 03:00:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2023-08-30 03:00:23,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44487179487179485 [2023-08-30 03:00:23,667 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 347 transitions. [2023-08-30 03:00:23,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 347 transitions. [2023-08-30 03:00:23,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:23,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 347 transitions. [2023-08-30 03:00:23,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states 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 03:00:23,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:23,671 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:23,671 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 102 flow. Second operand 4 states and 347 transitions. [2023-08-30 03:00:23,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 218 flow [2023-08-30 03:00:23,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:00:23,675 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 152 flow [2023-08-30 03:00:23,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-30 03:00:23,678 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2023-08-30 03:00:23,678 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 152 flow [2023-08-30 03:00:23,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states 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 03:00:23,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:23,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:23,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:00:23,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:23,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash -191916566, now seen corresponding path program 1 times [2023-08-30 03:00:23,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:23,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121437574] [2023-08-30 03:00:23,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:23,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:24,047 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 03:00:24,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:24,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121437574] [2023-08-30 03:00:24,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121437574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:24,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:24,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:00:24,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561145685] [2023-08-30 03:00:24,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:24,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:24,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:24,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 195 [2023-08-30 03:00:24,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 03:00:24,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:24,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 195 [2023-08-30 03:00:24,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:24,234 INFO L130 PetriNetUnfolder]: 254/456 cut-off events. [2023-08-30 03:00:24,234 INFO L131 PetriNetUnfolder]: For 452/452 co-relation queries the response was YES. [2023-08-30 03:00:24,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 456 events. 254/456 cut-off events. For 452/452 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1745 event pairs, 170 based on Foata normal form. 18/474 useless extension candidates. Maximal degree in co-relation 1320. Up to 449 conditions per place. [2023-08-30 03:00:24,238 INFO L137 encePairwiseOnDemand]: 192/195 looper letters, 20 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2023-08-30 03:00:24,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 23 transitions, 143 flow [2023-08-30 03:00:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 323 transitions. [2023-08-30 03:00:24,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41410256410256413 [2023-08-30 03:00:24,240 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 323 transitions. [2023-08-30 03:00:24,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 323 transitions. [2023-08-30 03:00:24,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:24,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 323 transitions. [2023-08-30 03:00:24,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states 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 03:00:24,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:24,243 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:24,244 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 152 flow. Second operand 4 states and 323 transitions. [2023-08-30 03:00:24,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 23 transitions, 143 flow [2023-08-30 03:00:24,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 132 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 03:00:24,246 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 80 flow [2023-08-30 03:00:24,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-08-30 03:00:24,247 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-08-30 03:00:24,247 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 80 flow [2023-08-30 03:00:24,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 03:00:24,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:24,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:24,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:00:24,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:24,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:24,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1211842037, now seen corresponding path program 1 times [2023-08-30 03:00:24,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:24,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446452280] [2023-08-30 03:00:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:24,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:25,388 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 03:00:25,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446452280] [2023-08-30 03:00:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446452280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:25,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:25,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 03:00:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527954395] [2023-08-30 03:00:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:25,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 03:00:25,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 03:00:25,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 03:00:25,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-08-30 03:00:25,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 80 flow. Second operand has 8 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 03:00:25,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:25,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-08-30 03:00:25,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:25,693 INFO L130 PetriNetUnfolder]: 244/440 cut-off events. [2023-08-30 03:00:25,693 INFO L131 PetriNetUnfolder]: For 193/193 co-relation queries the response was YES. [2023-08-30 03:00:25,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233 conditions, 440 events. 244/440 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1724 event pairs, 20 based on Foata normal form. 6/446 useless extension candidates. Maximal degree in co-relation 1224. Up to 241 conditions per place. [2023-08-30 03:00:25,696 INFO L137 encePairwiseOnDemand]: 190/195 looper letters, 33 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2023-08-30 03:00:25,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 217 flow [2023-08-30 03:00:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:00:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:00:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 442 transitions. [2023-08-30 03:00:25,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4533333333333333 [2023-08-30 03:00:25,699 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 442 transitions. [2023-08-30 03:00:25,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 442 transitions. [2023-08-30 03:00:25,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:25,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 442 transitions. [2023-08-30 03:00:25,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 03:00:25,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:25,703 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:25,703 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 80 flow. Second operand 5 states and 442 transitions. [2023-08-30 03:00:25,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 217 flow [2023-08-30 03:00:25,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:25,706 INFO L231 Difference]: Finished difference. Result has 37 places, 21 transitions, 102 flow [2023-08-30 03:00:25,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=5, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=21} [2023-08-30 03:00:25,707 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2023-08-30 03:00:25,707 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 21 transitions, 102 flow [2023-08-30 03:00:25,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.5) internal successors, (660), 8 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 03:00:25,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:25,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:25,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:00:25,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:25,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1403112358, now seen corresponding path program 1 times [2023-08-30 03:00:25,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:25,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259196810] [2023-08-30 03:00:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:25,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:26,129 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 03:00:26,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259196810] [2023-08-30 03:00:26,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259196810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:26,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:26,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:00:26,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639387160] [2023-08-30 03:00:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:26,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:00:26,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:00:26,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:00:26,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 195 [2023-08-30 03:00:26,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 21 transitions, 102 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 03:00:26,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:26,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 195 [2023-08-30 03:00:26,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:26,335 INFO L130 PetriNetUnfolder]: 358/659 cut-off events. [2023-08-30 03:00:26,335 INFO L131 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2023-08-30 03:00:26,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 659 events. 358/659 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2982 event pairs, 121 based on Foata normal form. 18/677 useless extension candidates. Maximal degree in co-relation 1990. Up to 372 conditions per place. [2023-08-30 03:00:26,339 INFO L137 encePairwiseOnDemand]: 188/195 looper letters, 23 selfloop transitions, 6 changer transitions 10/39 dead transitions. [2023-08-30 03:00:26,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 39 transitions, 244 flow [2023-08-30 03:00:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:00:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:00:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2023-08-30 03:00:26,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-30 03:00:26,342 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 364 transitions. [2023-08-30 03:00:26,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 364 transitions. [2023-08-30 03:00:26,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:26,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 364 transitions. [2023-08-30 03:00:26,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states 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 03:00:26,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:26,345 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 03:00:26,345 INFO L175 Difference]: Start difference. First operand has 37 places, 21 transitions, 102 flow. Second operand 4 states and 364 transitions. [2023-08-30 03:00:26,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 39 transitions, 244 flow [2023-08-30 03:00:26,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 235 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:26,348 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 140 flow [2023-08-30 03:00:26,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=4, PETRI_FLOW=140, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2023-08-30 03:00:26,349 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2023-08-30 03:00:26,349 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 140 flow [2023-08-30 03:00:26,350 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 03:00:26,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:26,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:26,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:00:26,350 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:26,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:26,351 INFO L85 PathProgramCache]: Analyzing trace with hash -802727812, now seen corresponding path program 2 times [2023-08-30 03:00:26,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:26,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374189977] [2023-08-30 03:00:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:26,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:26,785 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 03:00:26,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:26,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374189977] [2023-08-30 03:00:26,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374189977] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:26,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:26,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:00:26,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233909957] [2023-08-30 03:00:26,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:26,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:00:26,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:26,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:00:26,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:00:26,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-08-30 03:00:26,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states 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 03:00:26,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:26,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-08-30 03:00:26,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:26,969 INFO L130 PetriNetUnfolder]: 250/497 cut-off events. [2023-08-30 03:00:26,969 INFO L131 PetriNetUnfolder]: For 886/886 co-relation queries the response was YES. [2023-08-30 03:00:26,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 497 events. 250/497 cut-off events. For 886/886 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2226 event pairs, 128 based on Foata normal form. 18/515 useless extension candidates. Maximal degree in co-relation 1741. Up to 326 conditions per place. [2023-08-30 03:00:26,973 INFO L137 encePairwiseOnDemand]: 188/195 looper letters, 21 selfloop transitions, 9 changer transitions 9/39 dead transitions. [2023-08-30 03:00:26,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 284 flow [2023-08-30 03:00:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:00:26,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:00:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 439 transitions. [2023-08-30 03:00:26,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4502564102564103 [2023-08-30 03:00:26,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 439 transitions. [2023-08-30 03:00:26,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 439 transitions. [2023-08-30 03:00:26,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:26,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 439 transitions. [2023-08-30 03:00:26,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states 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 03:00:26,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:26,993 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:26,993 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 140 flow. Second operand 5 states and 439 transitions. [2023-08-30 03:00:26,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 284 flow [2023-08-30 03:00:26,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 39 transitions, 272 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-30 03:00:26,996 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 183 flow [2023-08-30 03:00:26,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2023-08-30 03:00:26,998 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2023-08-30 03:00:26,999 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 183 flow [2023-08-30 03:00:26,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states 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 03:00:26,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:26,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:27,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:00:27,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:27,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:27,000 INFO L85 PathProgramCache]: Analyzing trace with hash 625452728, now seen corresponding path program 3 times [2023-08-30 03:00:27,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:27,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400317988] [2023-08-30 03:00:27,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:27,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:27,585 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 03:00:27,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:27,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400317988] [2023-08-30 03:00:27,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400317988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:27,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:27,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:00:27,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136205683] [2023-08-30 03:00:27,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:27,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:00:27,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:27,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:00:27,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:00:27,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 195 [2023-08-30 03:00:27,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:27,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:27,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 195 [2023-08-30 03:00:27,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:27,792 INFO L130 PetriNetUnfolder]: 238/465 cut-off events. [2023-08-30 03:00:27,793 INFO L131 PetriNetUnfolder]: For 968/968 co-relation queries the response was YES. [2023-08-30 03:00:27,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 465 events. 238/465 cut-off events. For 968/968 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1997 event pairs, 40 based on Foata normal form. 5/470 useless extension candidates. Maximal degree in co-relation 1723. Up to 238 conditions per place. [2023-08-30 03:00:27,796 INFO L137 encePairwiseOnDemand]: 187/195 looper letters, 25 selfloop transitions, 13 changer transitions 2/40 dead transitions. [2023-08-30 03:00:27,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 326 flow [2023-08-30 03:00:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:00:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:00:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 427 transitions. [2023-08-30 03:00:27,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4379487179487179 [2023-08-30 03:00:27,799 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 427 transitions. [2023-08-30 03:00:27,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 427 transitions. [2023-08-30 03:00:27,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:27,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 427 transitions. [2023-08-30 03:00:27,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 03:00:27,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:27,802 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:27,802 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 183 flow. Second operand 5 states and 427 transitions. [2023-08-30 03:00:27,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 326 flow [2023-08-30 03:00:27,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 310 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 03:00:27,806 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 236 flow [2023-08-30 03:00:27,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2023-08-30 03:00:27,807 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2023-08-30 03:00:27,807 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 236 flow [2023-08-30 03:00:27,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:00:27,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:27,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:27,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:00:27,808 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:27,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:27,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1940168456, now seen corresponding path program 4 times [2023-08-30 03:00:27,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:27,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79303865] [2023-08-30 03:00:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:27,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:28,607 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 03:00:28,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:28,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79303865] [2023-08-30 03:00:28,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79303865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:28,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:28,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:00:28,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091490828] [2023-08-30 03:00:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:28,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:00:28,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:00:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:00:28,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 195 [2023-08-30 03:00:28,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states 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 03:00:28,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:28,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 195 [2023-08-30 03:00:28,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:28,863 INFO L130 PetriNetUnfolder]: 250/489 cut-off events. [2023-08-30 03:00:28,863 INFO L131 PetriNetUnfolder]: For 1414/1414 co-relation queries the response was YES. [2023-08-30 03:00:28,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 489 events. 250/489 cut-off events. For 1414/1414 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2170 event pairs, 47 based on Foata normal form. 3/492 useless extension candidates. Maximal degree in co-relation 2022. Up to 366 conditions per place. [2023-08-30 03:00:28,867 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 31 selfloop transitions, 20 changer transitions 4/55 dead transitions. [2023-08-30 03:00:28,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 502 flow [2023-08-30 03:00:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:00:28,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:00:28,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2023-08-30 03:00:28,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-30 03:00:28,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 520 transitions. [2023-08-30 03:00:28,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 520 transitions. [2023-08-30 03:00:28,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:28,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 520 transitions. [2023-08-30 03:00:28,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 0 states 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 03:00:28,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states 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 03:00:28,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states 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 03:00:28,875 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 236 flow. Second operand 6 states and 520 transitions. [2023-08-30 03:00:28,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 502 flow [2023-08-30 03:00:28,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 474 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-30 03:00:28,882 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 392 flow [2023-08-30 03:00:28,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=392, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-08-30 03:00:28,883 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2023-08-30 03:00:28,883 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 392 flow [2023-08-30 03:00:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states 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 03:00:28,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:28,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:28,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 03:00:28,884 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:28,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash -493957172, now seen corresponding path program 5 times [2023-08-30 03:00:28,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:28,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894500545] [2023-08-30 03:00:28,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:28,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:29,337 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 03:00:29,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:29,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894500545] [2023-08-30 03:00:29,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894500545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:29,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:29,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:00:29,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546099343] [2023-08-30 03:00:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:29,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:00:29,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:29,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:00:29,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:00:29,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 195 [2023-08-30 03:00:29,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 392 flow. Second operand has 7 states, 7 states have (on average 79.85714285714286) internal successors, (559), 7 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 03:00:29,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:29,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 195 [2023-08-30 03:00:29,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:29,599 INFO L130 PetriNetUnfolder]: 226/461 cut-off events. [2023-08-30 03:00:29,599 INFO L131 PetriNetUnfolder]: For 1802/1802 co-relation queries the response was YES. [2023-08-30 03:00:29,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 461 events. 226/461 cut-off events. For 1802/1802 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2063 event pairs, 21 based on Foata normal form. 13/474 useless extension candidates. Maximal degree in co-relation 2192. Up to 178 conditions per place. [2023-08-30 03:00:29,603 INFO L137 encePairwiseOnDemand]: 188/195 looper letters, 45 selfloop transitions, 12 changer transitions 33/90 dead transitions. [2023-08-30 03:00:29,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 90 transitions, 950 flow [2023-08-30 03:00:29,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 03:00:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 03:00:29,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 679 transitions. [2023-08-30 03:00:29,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43525641025641026 [2023-08-30 03:00:29,607 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 679 transitions. [2023-08-30 03:00:29,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 679 transitions. [2023-08-30 03:00:29,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:29,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 679 transitions. [2023-08-30 03:00:29,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.875) internal successors, (679), 8 states have internal predecessors, (679), 0 states have call successors, (0), 0 states 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 03:00:29,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 195.0) internal successors, (1755), 9 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states 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 03:00:29,611 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 195.0) internal successors, (1755), 9 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states 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 03:00:29,611 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 392 flow. Second operand 8 states and 679 transitions. [2023-08-30 03:00:29,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 90 transitions, 950 flow [2023-08-30 03:00:29,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 90 transitions, 933 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-08-30 03:00:29,617 INFO L231 Difference]: Finished difference. Result has 59 places, 43 transitions, 419 flow [2023-08-30 03:00:29,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=419, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2023-08-30 03:00:29,618 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2023-08-30 03:00:29,619 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 419 flow [2023-08-30 03:00:29,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.85714285714286) internal successors, (559), 7 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 03:00:29,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:00:29,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:29,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 03:00:29,620 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-08-30 03:00:29,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:00:29,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1469020500, now seen corresponding path program 1 times [2023-08-30 03:00:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:00:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927142816] [2023-08-30 03:00:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:00:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:00:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:00:30,251 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 03:00:30,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:00:30,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927142816] [2023-08-30 03:00:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927142816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:00:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:00:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 03:00:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010037992] [2023-08-30 03:00:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:00:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 03:00:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:00:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 03:00:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 03:00:30,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-08-30 03:00:30,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 419 flow. Second operand has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 03:00:30,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:00:30,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-08-30 03:00:30,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:00:30,387 INFO L130 PetriNetUnfolder]: 100/211 cut-off events. [2023-08-30 03:00:30,387 INFO L131 PetriNetUnfolder]: For 1172/1172 co-relation queries the response was YES. [2023-08-30 03:00:30,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 211 events. 100/211 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 703 event pairs, 33 based on Foata normal form. 12/223 useless extension candidates. Maximal degree in co-relation 1135. Up to 144 conditions per place. [2023-08-30 03:00:30,389 INFO L137 encePairwiseOnDemand]: 191/195 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2023-08-30 03:00:30,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 47 transitions, 543 flow [2023-08-30 03:00:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 03:00:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 03:00:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 429 transitions. [2023-08-30 03:00:30,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2023-08-30 03:00:30,391 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 429 transitions. [2023-08-30 03:00:30,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 429 transitions. [2023-08-30 03:00:30,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:00:30,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 429 transitions. [2023-08-30 03:00:30,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 03:00:30,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:30,395 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 03:00:30,395 INFO L175 Difference]: Start difference. First operand has 59 places, 43 transitions, 419 flow. Second operand 5 states and 429 transitions. [2023-08-30 03:00:30,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 47 transitions, 543 flow [2023-08-30 03:00:30,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 47 transitions, 513 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-08-30 03:00:30,398 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2023-08-30 03:00:30,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2023-08-30 03:00:30,399 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 24 predicate places. [2023-08-30 03:00:30,400 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2023-08-30 03:00:30,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states 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 03:00:30,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-08-30 03:00:30,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-08-30 03:00:30,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-08-30 03:00:30,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-08-30 03:00:30,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-08-30 03:00:30,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-08-30 03:00:30,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-08-30 03:00:30,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-08-30 03:00:30,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-08-30 03:00:30,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-08-30 03:00:30,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 03:00:30,407 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:00:30,411 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:00:30,411 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:00:30,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:00:30 BasicIcfg [2023-08-30 03:00:30,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:00:30,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:00:30,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:00:30,415 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:00:30,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:00:15" (3/4) ... [2023-08-30 03:00:30,418 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:00:30,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 03:00:30,422 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 03:00:30,428 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-08-30 03:00:30,428 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 03:00:30,429 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 03:00:30,429 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:00:30,466 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:00:30,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:00:30,467 INFO L158 Benchmark]: Toolchain (without parser) took 16570.91ms. Allocated memory was 73.4MB in the beginning and 289.4MB in the end (delta: 216.0MB). Free memory was 40.5MB in the beginning and 188.8MB in the end (delta: -148.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,467 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 50.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:00:30,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.57ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 32.1MB in the end (delta: 8.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.51ms. Allocated memory is still 73.4MB. Free memory was 32.1MB in the beginning and 50.6MB in the end (delta: -18.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,468 INFO L158 Benchmark]: Boogie Preprocessor took 33.90ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,468 INFO L158 Benchmark]: RCFGBuilder took 901.07ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.5MB in the beginning and 56.5MB in the end (delta: -8.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,469 INFO L158 Benchmark]: TraceAbstraction took 14962.75ms. Allocated memory was 88.1MB in the beginning and 289.4MB in the end (delta: 201.3MB). Free memory was 55.7MB in the beginning and 191.9MB in the end (delta: -136.2MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,469 INFO L158 Benchmark]: Witness Printer took 51.33ms. Allocated memory is still 289.4MB. Free memory was 191.9MB in the beginning and 188.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:00:30,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 50.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.57ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 32.1MB in the end (delta: 8.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.51ms. Allocated memory is still 73.4MB. Free memory was 32.1MB in the beginning and 50.6MB in the end (delta: -18.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.90ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 901.07ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.5MB in the beginning and 56.5MB in the end (delta: -8.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14962.75ms. Allocated memory was 88.1MB in the beginning and 289.4MB in the end (delta: 201.3MB). Free memory was 55.7MB in the beginning and 191.9MB in the end (delta: -136.2MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 51.33ms. Allocated memory is still 289.4MB. Free memory was 191.9MB in the beginning and 188.8MB 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: 4.7s, 103 PlacesBefore, 31 PlacesAfterwards, 98 TransitionsBefore, 24 TransitionsAfterwards, 1384 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 95 TotalNumberOfCompositions, 3967 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1496, independent: 1329, independent conditional: 0, independent unconditional: 1329, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 734, independent: 700, independent conditional: 0, independent unconditional: 700, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1496, independent: 629, independent conditional: 0, independent unconditional: 629, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 734, unknown conditional: 0, unknown unconditional: 734] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 834]: 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 5 procedures, 121 locations, 10 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: 14.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 494 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 348 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 171 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1170 IncrementalHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 171 mSolverCounterUnsat, 57 mSDtfsCounter, 1170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred in iteration=12, InterpolantAutomatonStates: 59, 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, 0.4s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 1327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:00:30,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE