./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS --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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:16:37,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:16:37,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:16:37,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:16:37,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:16:37,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:16:37,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:16:37,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:16:37,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:16:37,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:16:37,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:16:37,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:16:37,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:16:37,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:16:37,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:16:37,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:16:37,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:16:37,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:16:37,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:16:37,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:16:37,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:16:37,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:16:37,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:16:37,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:16:37,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:16:37,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:16:37,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:16:37,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:16:37,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:16:37,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:16:37,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:16:37,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:16:37,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:16:37,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:16:37,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:16:37,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:16:37,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:16:37,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:16:37,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:16:37,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:16:37,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:16:37,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-23 02:16:37,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:16:37,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:16:37,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:16:37,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:16:37,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:16:37,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:16:37,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:16:37,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:16:37,413 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:16:37,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:16:37,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:16:37,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:16:37,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:16:37,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:16:37,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:16:37,416 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 02:16:37,416 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 02:16:37,416 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 02:16:37,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:16:37,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 02:16:37,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:16:37,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:16:37,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:16:37,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:16:37,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:16:37,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:16:37,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:16:37,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:16:37,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:16:37,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:16:37,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:16:37,421 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:16:37,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:16:37,421 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2022-11-23 02:16:37,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:16:37,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:16:37,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:16:37,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:16:37,776 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:16:37,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2022-11-23 02:16:40,845 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:16:41,204 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:16:41,205 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2022-11-23 02:16:41,220 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/data/b08d5180c/fd14b48125524bb0b2551e9cf28a5b39/FLAG342d1c0af [2022-11-23 02:16:41,251 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/data/b08d5180c/fd14b48125524bb0b2551e9cf28a5b39 [2022-11-23 02:16:41,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:16:41,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:16:41,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:16:41,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:16:41,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:16:41,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:41,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b41bbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41, skipping insertion in model container [2022-11-23 02:16:41,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:41,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:16:41,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:16:41,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2022-11-23 02:16:41,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:16:41,744 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:16:41,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2022-11-23 02:16:41,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:16:41,901 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:16:41,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41 WrapperNode [2022-11-23 02:16:41,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:16:41,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:16:41,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:16:41,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:16:41,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:41,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:41,992 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-11-23 02:16:41,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:16:41,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:16:41,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:16:41,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:16:42,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:16:42,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:16:42,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:16:42,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:16:42,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (1/1) ... [2022-11-23 02:16:42,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:16:42,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:42,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:42,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:16:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:16:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 02:16:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:16:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:16:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:16:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 02:16:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 02:16:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 02:16:42,147 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 02:16:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:16:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 02:16:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:16:42,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:16:42,150 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:16:42,340 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:16:42,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:16:42,816 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:16:43,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:16:43,090 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:16:43,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:43 BoogieIcfgContainer [2022-11-23 02:16:43,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:16:43,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:16:43,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:16:43,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:16:43,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:16:41" (1/3) ... [2022-11-23 02:16:43,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0054ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:16:43, skipping insertion in model container [2022-11-23 02:16:43,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:41" (2/3) ... [2022-11-23 02:16:43,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0054ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:16:43, skipping insertion in model container [2022-11-23 02:16:43,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:43" (3/3) ... [2022-11-23 02:16:43,111 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2022-11-23 02:16:43,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:16:43,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-23 02:16:43,131 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:16:43,194 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:16:43,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 107 transitions, 224 flow [2022-11-23 02:16:43,317 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-11-23 02:16:43,317 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:16:43,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-11-23 02:16:43,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 107 transitions, 224 flow [2022-11-23 02:16:43,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 105 transitions, 216 flow [2022-11-23 02:16:43,334 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:16:43,352 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 105 transitions, 216 flow [2022-11-23 02:16:43,355 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 105 transitions, 216 flow [2022-11-23 02:16:43,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 105 transitions, 216 flow [2022-11-23 02:16:43,383 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-11-23 02:16:43,383 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:16:43,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-11-23 02:16:43,385 INFO L119 LiptonReduction]: Number of co-enabled transitions 1528 [2022-11-23 02:16:48,396 INFO L134 LiptonReduction]: Checked pairs total: 5110 [2022-11-23 02:16:48,396 INFO L136 LiptonReduction]: Total number of compositions: 109 [2022-11-23 02:16:48,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:16:48,419 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;@431ec619, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:16:48,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-23 02:16:48,420 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 02:16:48,421 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:16:48,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:48,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 02:16:48,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:48,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:48,427 INFO L85 PathProgramCache]: Analyzing trace with hash 544, now seen corresponding path program 1 times [2022-11-23 02:16:48,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:48,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060085811] [2022-11-23 02:16:48,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:48,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:48,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:48,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060085811] [2022-11-23 02:16:48,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060085811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:48,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:48,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 02:16:48,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590420482] [2022-11-23 02:16:48,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:48,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:16:48,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:48,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:16:48,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:16:48,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 216 [2022-11-23 02:16:48,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 60 flow. Second operand has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:48,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:48,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 216 [2022-11-23 02:16:48,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:48,828 INFO L130 PetriNetUnfolder]: 438/732 cut-off events. [2022-11-23 02:16:48,828 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-23 02:16:48,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 732 events. 438/732 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3062 event pairs, 438 based on Foata normal form. 0/615 useless extension candidates. Maximal degree in co-relation 1467. Up to 730 conditions per place. [2022-11-23 02:16:48,840 INFO L137 encePairwiseOnDemand]: 211/216 looper letters, 21 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2022-11-23 02:16:48,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 92 flow [2022-11-23 02:16:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:16:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:16:48,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 212 transitions. [2022-11-23 02:16:48,860 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49074074074074076 [2022-11-23 02:16:48,861 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 212 transitions. [2022-11-23 02:16:48,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 212 transitions. [2022-11-23 02:16:48,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:48,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 212 transitions. [2022-11-23 02:16:48,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:48,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:48,881 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:48,883 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 60 flow. Second operand 2 states and 212 transitions. [2022-11-23 02:16:48,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 92 flow [2022-11-23 02:16:48,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:16:48,889 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 48 flow [2022-11-23 02:16:48,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-11-23 02:16:48,895 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -5 predicate places. [2022-11-23 02:16:48,896 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 48 flow [2022-11-23 02:16:48,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:48,896 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:48,896 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:16:48,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:16:48,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1186913299, now seen corresponding path program 1 times [2022-11-23 02:16:48,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:48,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736650304] [2022-11-23 02:16:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:49,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:49,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:49,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736650304] [2022-11-23 02:16:49,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736650304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:49,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:49,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:16:49,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561059357] [2022-11-23 02:16:49,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:49,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:16:49,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:49,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:16:49,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:16:49,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 216 [2022-11-23 02:16:49,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:49,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:49,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 216 [2022-11-23 02:16:49,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:49,516 INFO L130 PetriNetUnfolder]: 380/639 cut-off events. [2022-11-23 02:16:49,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:16:49,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 639 events. 380/639 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2671 event pairs, 90 based on Foata normal form. 0/567 useless extension candidates. Maximal degree in co-relation 1287. Up to 466 conditions per place. [2022-11-23 02:16:49,520 INFO L137 encePairwiseOnDemand]: 213/216 looper letters, 26 selfloop transitions, 2 changer transitions 2/31 dead transitions. [2022-11-23 02:16:49,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 31 transitions, 126 flow [2022-11-23 02:16:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:16:49,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:16:49,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2022-11-23 02:16:49,529 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4737654320987654 [2022-11-23 02:16:49,529 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2022-11-23 02:16:49,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2022-11-23 02:16:49,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:49,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2022-11-23 02:16:49,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:49,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:49,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:49,536 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 48 flow. Second operand 3 states and 307 transitions. [2022-11-23 02:16:49,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 31 transitions, 126 flow [2022-11-23 02:16:49,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:16:49,538 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 48 flow [2022-11-23 02:16:49,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2022-11-23 02:16:49,539 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2022-11-23 02:16:49,539 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 48 flow [2022-11-23 02:16:49,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:49,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:49,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:49,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:16:49,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:49,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:49,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1839255041, now seen corresponding path program 1 times [2022-11-23 02:16:49,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:49,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953772251] [2022-11-23 02:16:49,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:49,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:49,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:49,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953772251] [2022-11-23 02:16:49,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953772251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:49,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:49,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:16:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665158787] [2022-11-23 02:16:49,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:49,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:16:49,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:49,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:16:49,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:16:50,052 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 216 [2022-11-23 02:16:50,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:50,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:50,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 216 [2022-11-23 02:16:50,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:50,242 INFO L130 PetriNetUnfolder]: 264/451 cut-off events. [2022-11-23 02:16:50,242 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-23 02:16:50,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 451 events. 264/451 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1722 event pairs, 120 based on Foata normal form. 0/451 useless extension candidates. Maximal degree in co-relation 939. Up to 444 conditions per place. [2022-11-23 02:16:50,245 INFO L137 encePairwiseOnDemand]: 213/216 looper letters, 20 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2022-11-23 02:16:50,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 98 flow [2022-11-23 02:16:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:16:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:16:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 355 transitions. [2022-11-23 02:16:50,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41087962962962965 [2022-11-23 02:16:50,251 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 355 transitions. [2022-11-23 02:16:50,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 355 transitions. [2022-11-23 02:16:50,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:50,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 355 transitions. [2022-11-23 02:16:50,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:50,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:50,255 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:50,255 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 48 flow. Second operand 4 states and 355 transitions. [2022-11-23 02:16:50,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 98 flow [2022-11-23 02:16:50,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:16:50,257 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 46 flow [2022-11-23 02:16:50,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, 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=4, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2022-11-23 02:16:50,258 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -5 predicate places. [2022-11-23 02:16:50,258 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 46 flow [2022-11-23 02:16:50,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:50,259 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:50,259 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:50,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:16:50,259 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:50,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:50,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1839254994, now seen corresponding path program 1 times [2022-11-23 02:16:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:50,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381069722] [2022-11-23 02:16:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:50,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:51,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:51,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381069722] [2022-11-23 02:16:51,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381069722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:51,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:51,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:16:51,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057159004] [2022-11-23 02:16:51,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:51,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:16:51,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:51,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:16:51,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:16:51,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 216 [2022-11-23 02:16:51,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:51,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:51,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 216 [2022-11-23 02:16:51,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:51,470 INFO L130 PetriNetUnfolder]: 289/506 cut-off events. [2022-11-23 02:16:51,471 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-23 02:16:51,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 506 events. 289/506 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1875 event pairs, 125 based on Foata normal form. 42/548 useless extension candidates. Maximal degree in co-relation 1033. Up to 226 conditions per place. [2022-11-23 02:16:51,473 INFO L137 encePairwiseOnDemand]: 212/216 looper letters, 24 selfloop transitions, 2 changer transitions 17/43 dead transitions. [2022-11-23 02:16:51,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 43 transitions, 180 flow [2022-11-23 02:16:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:16:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:16:51,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 460 transitions. [2022-11-23 02:16:51,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2022-11-23 02:16:51,480 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 460 transitions. [2022-11-23 02:16:51,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 460 transitions. [2022-11-23 02:16:51,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:51,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 460 transitions. [2022-11-23 02:16:51,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:51,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:51,484 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:51,484 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 46 flow. Second operand 5 states and 460 transitions. [2022-11-23 02:16:51,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 43 transitions, 180 flow [2022-11-23 02:16:51,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:16:51,486 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 55 flow [2022-11-23 02:16:51,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=5, PETRI_FLOW=55, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2022-11-23 02:16:51,487 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-11-23 02:16:51,487 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 55 flow [2022-11-23 02:16:51,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:51,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:51,488 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:51,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:16:51,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:51,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash 334114568, now seen corresponding path program 1 times [2022-11-23 02:16:51,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:51,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357577388] [2022-11-23 02:16:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:52,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:52,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:52,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357577388] [2022-11-23 02:16:52,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357577388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:52,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:52,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:16:52,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250949099] [2022-11-23 02:16:52,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:52,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:16:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:52,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:16:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:16:52,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 216 [2022-11-23 02:16:52,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 55 flow. Second operand has 8 states, 8 states have (on average 86.5) internal successors, (692), 8 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:52,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:52,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 216 [2022-11-23 02:16:52,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:53,073 INFO L130 PetriNetUnfolder]: 202/376 cut-off events. [2022-11-23 02:16:53,074 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-11-23 02:16:53,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 376 events. 202/376 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1427 event pairs, 91 based on Foata normal form. 15/391 useless extension candidates. Maximal degree in co-relation 837. Up to 319 conditions per place. [2022-11-23 02:16:53,077 INFO L137 encePairwiseOnDemand]: 207/216 looper letters, 26 selfloop transitions, 11 changer transitions 7/45 dead transitions. [2022-11-23 02:16:53,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 203 flow [2022-11-23 02:16:53,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:16:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:16:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 640 transitions. [2022-11-23 02:16:53,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2022-11-23 02:16:53,081 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 640 transitions. [2022-11-23 02:16:53,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 640 transitions. [2022-11-23 02:16:53,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:53,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 640 transitions. [2022-11-23 02:16:53,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.42857142857143) internal successors, (640), 7 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:53,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:53,088 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:53,088 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 55 flow. Second operand 7 states and 640 transitions. [2022-11-23 02:16:53,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 203 flow [2022-11-23 02:16:53,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 45 transitions, 193 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-23 02:16:53,092 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 122 flow [2022-11-23 02:16:53,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=122, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2022-11-23 02:16:53,096 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2022-11-23 02:16:53,096 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 122 flow [2022-11-23 02:16:53,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.5) internal successors, (692), 8 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:53,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:53,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:53,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:16:53,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1823731838, now seen corresponding path program 2 times [2022-11-23 02:16:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:53,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562601549] [2022-11-23 02:16:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:54,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562601549] [2022-11-23 02:16:54,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562601549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:54,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:54,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:16:54,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587216712] [2022-11-23 02:16:54,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:54,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:16:54,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:16:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:16:54,145 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 216 [2022-11-23 02:16:54,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 122 flow. Second operand has 8 states, 8 states have (on average 87.5) internal successors, (700), 8 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:54,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 216 [2022-11-23 02:16:54,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:54,406 INFO L130 PetriNetUnfolder]: 198/370 cut-off events. [2022-11-23 02:16:54,406 INFO L131 PetriNetUnfolder]: For 159/159 co-relation queries the response was YES. [2022-11-23 02:16:54,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 370 events. 198/370 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1372 event pairs, 89 based on Foata normal form. 15/385 useless extension candidates. Maximal degree in co-relation 1013. Up to 310 conditions per place. [2022-11-23 02:16:54,409 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 27 selfloop transitions, 12 changer transitions 9/49 dead transitions. [2022-11-23 02:16:54,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 286 flow [2022-11-23 02:16:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:16:54,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:16:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 647 transitions. [2022-11-23 02:16:54,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4279100529100529 [2022-11-23 02:16:54,413 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 647 transitions. [2022-11-23 02:16:54,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 647 transitions. [2022-11-23 02:16:54,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:54,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 647 transitions. [2022-11-23 02:16:54,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,418 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,419 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 122 flow. Second operand 7 states and 647 transitions. [2022-11-23 02:16:54,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 286 flow [2022-11-23 02:16:54,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 284 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-23 02:16:54,425 INFO L231 Difference]: Finished difference. Result has 46 places, 33 transitions, 186 flow [2022-11-23 02:16:54,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=186, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2022-11-23 02:16:54,429 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2022-11-23 02:16:54,429 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 186 flow [2022-11-23 02:16:54,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.5) internal successors, (700), 8 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:54,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:54,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 02:16:54,430 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:54,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:54,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1154181226, now seen corresponding path program 1 times [2022-11-23 02:16:54,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:54,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174484548] [2022-11-23 02:16:54,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:54,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:54,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:54,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174484548] [2022-11-23 02:16:54,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174484548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:54,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:54,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:16:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132281135] [2022-11-23 02:16:54,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:54,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:16:54,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:54,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:16:54,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:16:54,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 216 [2022-11-23 02:16:54,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:54,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 216 [2022-11-23 02:16:54,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:54,798 INFO L130 PetriNetUnfolder]: 64/149 cut-off events. [2022-11-23 02:16:54,798 INFO L131 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2022-11-23 02:16:54,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 149 events. 64/149 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 449 event pairs, 21 based on Foata normal form. 24/172 useless extension candidates. Maximal degree in co-relation 474. Up to 93 conditions per place. [2022-11-23 02:16:54,800 INFO L137 encePairwiseOnDemand]: 212/216 looper letters, 35 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2022-11-23 02:16:54,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 268 flow [2022-11-23 02:16:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:16:54,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:16:54,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2022-11-23 02:16:54,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4645061728395062 [2022-11-23 02:16:54,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2022-11-23 02:16:54,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2022-11-23 02:16:54,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:54,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2022-11-23 02:16:54,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,806 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 186 flow. Second operand 3 states and 301 transitions. [2022-11-23 02:16:54,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 268 flow [2022-11-23 02:16:54,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 230 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-11-23 02:16:54,811 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 133 flow [2022-11-23 02:16:54,811 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2022-11-23 02:16:54,812 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2022-11-23 02:16:54,812 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 133 flow [2022-11-23 02:16:54,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:54,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:54,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:54,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 02:16:54,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:54,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash 890004241, now seen corresponding path program 1 times [2022-11-23 02:16:54,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:54,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006618769] [2022-11-23 02:16:54,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:54,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:56,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:56,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006618769] [2022-11-23 02:16:56,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006618769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:56,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:56,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:16:56,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807723583] [2022-11-23 02:16:56,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:56,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 02:16:56,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 02:16:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-23 02:16:56,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 216 [2022-11-23 02:16:56,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 133 flow. Second operand has 9 states, 9 states have (on average 85.55555555555556) internal successors, (770), 9 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:56,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:56,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 216 [2022-11-23 02:16:56,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:56,522 INFO L130 PetriNetUnfolder]: 62/152 cut-off events. [2022-11-23 02:16:56,522 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-11-23 02:16:56,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 152 events. 62/152 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 472 event pairs, 36 based on Foata normal form. 5/157 useless extension candidates. Maximal degree in co-relation 474. Up to 131 conditions per place. [2022-11-23 02:16:56,523 INFO L137 encePairwiseOnDemand]: 208/216 looper letters, 24 selfloop transitions, 10 changer transitions 5/40 dead transitions. [2022-11-23 02:16:56,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 253 flow [2022-11-23 02:16:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 02:16:56,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 02:16:56,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 795 transitions. [2022-11-23 02:16:56,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4089506172839506 [2022-11-23 02:16:56,528 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 795 transitions. [2022-11-23 02:16:56,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 795 transitions. [2022-11-23 02:16:56,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:56,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 795 transitions. [2022-11-23 02:16:56,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.33333333333333) internal successors, (795), 9 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:56,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:56,535 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:56,535 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 133 flow. Second operand 9 states and 795 transitions. [2022-11-23 02:16:56,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 253 flow [2022-11-23 02:16:56,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:16:56,538 INFO L231 Difference]: Finished difference. Result has 50 places, 29 transitions, 158 flow [2022-11-23 02:16:56,538 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=158, PETRI_PLACES=50, PETRI_TRANSITIONS=29} [2022-11-23 02:16:56,540 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2022-11-23 02:16:56,540 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 29 transitions, 158 flow [2022-11-23 02:16:56,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 85.55555555555556) internal successors, (770), 9 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:56,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:56,541 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:56,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 02:16:56,542 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:56,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2009243567, now seen corresponding path program 1 times [2022-11-23 02:16:56,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:56,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858794471] [2022-11-23 02:16:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:58,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:58,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858794471] [2022-11-23 02:16:58,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858794471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:58,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:58,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:16:58,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349533668] [2022-11-23 02:16:58,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:58,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 02:16:58,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:58,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 02:16:58,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 02:16:58,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 216 [2022-11-23 02:16:58,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 29 transitions, 158 flow. Second operand has 9 states, 9 states have (on average 85.66666666666667) internal successors, (771), 9 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:58,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:58,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 216 [2022-11-23 02:16:58,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:59,453 INFO L130 PetriNetUnfolder]: 114/289 cut-off events. [2022-11-23 02:16:59,453 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2022-11-23 02:16:59,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 289 events. 114/289 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1281 event pairs, 9 based on Foata normal form. 12/301 useless extension candidates. Maximal degree in co-relation 958. Up to 105 conditions per place. [2022-11-23 02:16:59,456 INFO L137 encePairwiseOnDemand]: 207/216 looper letters, 51 selfloop transitions, 22 changer transitions 15/89 dead transitions. [2022-11-23 02:16:59,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 89 transitions, 593 flow [2022-11-23 02:16:59,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 02:16:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 02:16:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1174 transitions. [2022-11-23 02:16:59,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180911680911681 [2022-11-23 02:16:59,460 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1174 transitions. [2022-11-23 02:16:59,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1174 transitions. [2022-11-23 02:16:59,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:59,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1174 transitions. [2022-11-23 02:16:59,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.3076923076923) internal successors, (1174), 13 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 216.0) internal successors, (3024), 14 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,470 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 216.0) internal successors, (3024), 14 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,470 INFO L175 Difference]: Start difference. First operand has 50 places, 29 transitions, 158 flow. Second operand 13 states and 1174 transitions. [2022-11-23 02:16:59,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 89 transitions, 593 flow [2022-11-23 02:16:59,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 89 transitions, 547 flow, removed 11 selfloop flow, removed 8 redundant places. [2022-11-23 02:16:59,474 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 241 flow [2022-11-23 02:16:59,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=241, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2022-11-23 02:16:59,475 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2022-11-23 02:16:59,476 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 241 flow [2022-11-23 02:16:59,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 85.66666666666667) internal successors, (771), 9 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:59,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:59,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 02:16:59,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 939289615, now seen corresponding path program 2 times [2022-11-23 02:16:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:59,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071810822] [2022-11-23 02:16:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:59,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:16:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:16:59,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:16:59,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071810822] [2022-11-23 02:16:59,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071810822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:16:59,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:16:59,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:16:59,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104993285] [2022-11-23 02:16:59,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:16:59,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:16:59,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:16:59,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:16:59,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:16:59,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 216 [2022-11-23 02:16:59,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:16:59,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 216 [2022-11-23 02:16:59,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:16:59,814 INFO L130 PetriNetUnfolder]: 48/141 cut-off events. [2022-11-23 02:16:59,814 INFO L131 PetriNetUnfolder]: For 150/150 co-relation queries the response was YES. [2022-11-23 02:16:59,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 141 events. 48/141 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 511 event pairs, 11 based on Foata normal form. 23/163 useless extension candidates. Maximal degree in co-relation 495. Up to 77 conditions per place. [2022-11-23 02:16:59,816 INFO L137 encePairwiseOnDemand]: 212/216 looper letters, 44 selfloop transitions, 5 changer transitions 10/60 dead transitions. [2022-11-23 02:16:59,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 453 flow [2022-11-23 02:16:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:16:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:16:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2022-11-23 02:16:59,818 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4525462962962963 [2022-11-23 02:16:59,818 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2022-11-23 02:16:59,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2022-11-23 02:16:59,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:16:59,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2022-11-23 02:16:59,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,822 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,822 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 241 flow. Second operand 4 states and 391 transitions. [2022-11-23 02:16:59,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 453 flow [2022-11-23 02:16:59,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 384 flow, removed 25 selfloop flow, removed 10 redundant places. [2022-11-23 02:16:59,827 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 198 flow [2022-11-23 02:16:59,828 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2022-11-23 02:16:59,830 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2022-11-23 02:16:59,830 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 198 flow [2022-11-23 02:16:59,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:16:59,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:16:59,831 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:16:59,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 02:16:59,832 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:16:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2059126045, now seen corresponding path program 1 times [2022-11-23 02:16:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395267391] [2022-11-23 02:16:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:00,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:00,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395267391] [2022-11-23 02:17:00,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395267391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:00,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:00,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:17:00,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307029570] [2022-11-23 02:17:00,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:00,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:17:00,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:00,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:17:00,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:17:00,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 216 [2022-11-23 02:17:00,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:17:00,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 216 [2022-11-23 02:17:00,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:17:00,933 INFO L130 PetriNetUnfolder]: 53/143 cut-off events. [2022-11-23 02:17:00,933 INFO L131 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2022-11-23 02:17:00,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 143 events. 53/143 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 485 event pairs, 5 based on Foata normal form. 1/144 useless extension candidates. Maximal degree in co-relation 469. Up to 66 conditions per place. [2022-11-23 02:17:00,934 INFO L137 encePairwiseOnDemand]: 209/216 looper letters, 22 selfloop transitions, 3 changer transitions 38/63 dead transitions. [2022-11-23 02:17:00,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 428 flow [2022-11-23 02:17:00,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:17:00,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:17:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 606 transitions. [2022-11-23 02:17:00,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4007936507936508 [2022-11-23 02:17:00,937 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 606 transitions. [2022-11-23 02:17:00,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 606 transitions. [2022-11-23 02:17:00,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:00,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 606 transitions. [2022-11-23 02:17:00,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.57142857142857) internal successors, (606), 7 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,942 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,942 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 198 flow. Second operand 7 states and 606 transitions. [2022-11-23 02:17:00,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 428 flow [2022-11-23 02:17:00,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 388 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-11-23 02:17:00,945 INFO L231 Difference]: Finished difference. Result has 53 places, 23 transitions, 104 flow [2022-11-23 02:17:00,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=104, PETRI_PLACES=53, PETRI_TRANSITIONS=23} [2022-11-23 02:17:00,946 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 20 predicate places. [2022-11-23 02:17:00,946 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 23 transitions, 104 flow [2022-11-23 02:17:00,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:17:00,947 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:00,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 02:17:00,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:17:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2058833231, now seen corresponding path program 2 times [2022-11-23 02:17:00,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:00,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148712211] [2022-11-23 02:17:00,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:03,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148712211] [2022-11-23 02:17:03,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148712211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:03,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:03,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 02:17:03,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328628349] [2022-11-23 02:17:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:03,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 02:17:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:03,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 02:17:03,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-23 02:17:03,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 216 [2022-11-23 02:17:03,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 23 transitions, 104 flow. Second operand has 12 states, 12 states have (on average 82.5) internal successors, (990), 12 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:03,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:17:03,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 216 [2022-11-23 02:17:03,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:17:03,646 INFO L130 PetriNetUnfolder]: 11/61 cut-off events. [2022-11-23 02:17:03,646 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-23 02:17:03,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 61 events. 11/61 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 122 event pairs, 2 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 201. Up to 17 conditions per place. [2022-11-23 02:17:03,647 INFO L137 encePairwiseOnDemand]: 208/216 looper letters, 18 selfloop transitions, 5 changer transitions 10/34 dead transitions. [2022-11-23 02:17:03,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 219 flow [2022-11-23 02:17:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 02:17:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 02:17:03,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 759 transitions. [2022-11-23 02:17:03,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3904320987654321 [2022-11-23 02:17:03,666 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 759 transitions. [2022-11-23 02:17:03,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 759 transitions. [2022-11-23 02:17:03,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:03,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 759 transitions. [2022-11-23 02:17:03,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.33333333333333) internal successors, (759), 9 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:03,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:03,673 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:03,673 INFO L175 Difference]: Start difference. First operand has 53 places, 23 transitions, 104 flow. Second operand 9 states and 759 transitions. [2022-11-23 02:17:03,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 219 flow [2022-11-23 02:17:03,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 201 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-11-23 02:17:03,675 INFO L231 Difference]: Finished difference. Result has 47 places, 21 transitions, 96 flow [2022-11-23 02:17:03,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=96, PETRI_PLACES=47, PETRI_TRANSITIONS=21} [2022-11-23 02:17:03,676 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2022-11-23 02:17:03,676 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 21 transitions, 96 flow [2022-11-23 02:17:03,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 82.5) internal successors, (990), 12 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:03,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:17:03,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:03,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 02:17:03,678 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:17:03,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:03,678 INFO L85 PathProgramCache]: Analyzing trace with hash -424916401, now seen corresponding path program 3 times [2022-11-23 02:17:03,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:03,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008113995] [2022-11-23 02:17:03,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:03,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:05,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:05,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008113995] [2022-11-23 02:17:05,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008113995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:05,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:05,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:17:05,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801311858] [2022-11-23 02:17:05,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:05,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:17:05,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:05,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:17:05,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:17:05,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 216 [2022-11-23 02:17:05,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 21 transitions, 96 flow. Second operand has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:05,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:17:05,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 216 [2022-11-23 02:17:05,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:17:05,627 INFO L130 PetriNetUnfolder]: 10/56 cut-off events. [2022-11-23 02:17:05,627 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-23 02:17:05,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 56 events. 10/56 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 1 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 183. Up to 27 conditions per place. [2022-11-23 02:17:05,628 INFO L137 encePairwiseOnDemand]: 207/216 looper letters, 17 selfloop transitions, 6 changer transitions 10/34 dead transitions. [2022-11-23 02:17:05,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 219 flow [2022-11-23 02:17:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 02:17:05,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 02:17:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 870 transitions. [2022-11-23 02:17:05,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2022-11-23 02:17:05,634 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 870 transitions. [2022-11-23 02:17:05,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 870 transitions. [2022-11-23 02:17:05,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:05,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 870 transitions. [2022-11-23 02:17:05,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:05,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 216.0) internal successors, (2376), 11 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:05,642 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 216.0) internal successors, (2376), 11 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:05,642 INFO L175 Difference]: Start difference. First operand has 47 places, 21 transitions, 96 flow. Second operand 10 states and 870 transitions. [2022-11-23 02:17:05,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 219 flow [2022-11-23 02:17:05,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 201 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-23 02:17:05,646 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 102 flow [2022-11-23 02:17:05,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=102, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2022-11-23 02:17:05,647 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2022-11-23 02:17:05,647 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 102 flow [2022-11-23 02:17:05,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.8) internal successors, (858), 10 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:05,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:17:05,648 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:05,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 02:17:05,649 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-23 02:17:05,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:05,649 INFO L85 PathProgramCache]: Analyzing trace with hash -542862015, now seen corresponding path program 4 times [2022-11-23 02:17:05,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:05,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92267782] [2022-11-23 02:17:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:07,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92267782] [2022-11-23 02:17:07,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92267782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:07,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:07,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 02:17:07,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234128193] [2022-11-23 02:17:07,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:07,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 02:17:07,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:07,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 02:17:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 02:17:08,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 216 [2022-11-23 02:17:08,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 102 flow. Second operand has 11 states, 11 states have (on average 85.63636363636364) internal successors, (942), 11 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:08,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:17:08,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 216 [2022-11-23 02:17:08,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:17:08,406 INFO L130 PetriNetUnfolder]: 8/41 cut-off events. [2022-11-23 02:17:08,407 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-23 02:17:08,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 41 events. 8/41 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 1 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 143. Up to 14 conditions per place. [2022-11-23 02:17:08,407 INFO L137 encePairwiseOnDemand]: 207/216 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2022-11-23 02:17:08,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 24 transitions, 163 flow [2022-11-23 02:17:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 02:17:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 02:17:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 862 transitions. [2022-11-23 02:17:08,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3990740740740741 [2022-11-23 02:17:08,411 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 862 transitions. [2022-11-23 02:17:08,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 862 transitions. [2022-11-23 02:17:08,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:08,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 862 transitions. [2022-11-23 02:17:08,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.2) internal successors, (862), 10 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:08,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 216.0) internal successors, (2376), 11 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:08,419 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 216.0) internal successors, (2376), 11 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:08,419 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 102 flow. Second operand 10 states and 862 transitions. [2022-11-23 02:17:08,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 24 transitions, 163 flow [2022-11-23 02:17:08,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 24 transitions, 141 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-11-23 02:17:08,420 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2022-11-23 02:17:08,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=10, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2022-11-23 02:17:08,422 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2022-11-23 02:17:08,422 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2022-11-23 02:17:08,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 85.63636363636364) internal successors, (942), 11 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:08,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-23 02:17:08,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2022-11-23 02:17:08,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-23 02:17:08,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-23 02:17:08,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-23 02:17:08,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2022-11-23 02:17:08,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-23 02:17:08,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-23 02:17:08,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-23 02:17:08,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-23 02:17:08,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 02:17:08,429 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:08,435 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:17:08,435 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:17:08,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:17:08 BasicIcfg [2022-11-23 02:17:08,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:17:08,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:17:08,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:17:08,440 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:17:08,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:43" (3/4) ... [2022-11-23 02:17:08,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:17:08,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 02:17:08,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 02:17:08,454 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-11-23 02:17:08,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-23 02:17:08,455 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 02:17:08,456 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:17:08,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:17:08,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:17:08,505 INFO L158 Benchmark]: Toolchain (without parser) took 27250.09ms. Allocated memory was 174.1MB in the beginning and 438.3MB in the end (delta: 264.2MB). Free memory was 139.3MB in the beginning and 231.4MB in the end (delta: -92.1MB). Peak memory consumption was 174.1MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,505 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 84.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:17:08,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.21ms. Allocated memory is still 174.1MB. Free memory was 139.3MB in the beginning and 113.7MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.20ms. Allocated memory is still 174.1MB. Free memory was 113.7MB in the beginning and 110.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,506 INFO L158 Benchmark]: Boogie Preprocessor took 63.24ms. Allocated memory is still 174.1MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,507 INFO L158 Benchmark]: RCFGBuilder took 1038.96ms. Allocated memory is still 174.1MB. Free memory was 108.3MB in the beginning and 124.8MB in the end (delta: -16.4MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,507 INFO L158 Benchmark]: TraceAbstraction took 25336.37ms. Allocated memory was 174.1MB in the beginning and 438.3MB in the end (delta: 264.2MB). Free memory was 124.8MB in the beginning and 234.6MB in the end (delta: -109.8MB). Peak memory consumption was 153.3MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,507 INFO L158 Benchmark]: Witness Printer took 65.30ms. Allocated memory is still 438.3MB. Free memory was 234.6MB in the beginning and 231.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:17:08,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 84.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.21ms. Allocated memory is still 174.1MB. Free memory was 139.3MB in the beginning and 113.7MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.20ms. Allocated memory is still 174.1MB. Free memory was 113.7MB in the beginning and 110.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.24ms. Allocated memory is still 174.1MB. Free memory was 110.4MB in the beginning and 108.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1038.96ms. Allocated memory is still 174.1MB. Free memory was 108.3MB in the beginning and 124.8MB in the end (delta: -16.4MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25336.37ms. Allocated memory was 174.1MB in the beginning and 438.3MB in the end (delta: 264.2MB). Free memory was 124.8MB in the beginning and 234.6MB in the end (delta: -109.8MB). Peak memory consumption was 153.3MB. Max. memory is 16.1GB. * Witness Printer took 65.30ms. Allocated memory is still 438.3MB. Free memory was 234.6MB in the beginning and 231.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 110 PlacesBefore, 33 PlacesAfterwards, 105 TransitionsBefore, 27 TransitionsAfterwards, 1528 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 109 TotalNumberOfCompositions, 5110 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1694, independent: 1504, independent conditional: 0, independent unconditional: 1504, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 970, independent: 927, independent conditional: 0, independent unconditional: 927, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 970, independent: 908, independent conditional: 0, independent unconditional: 908, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 379, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 354, dependent conditional: 0, dependent unconditional: 354, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1694, independent: 577, independent conditional: 0, independent unconditional: 577, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 970, unknown conditional: 0, unknown unconditional: 970] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 833]: 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, 128 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: 25.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 715 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 558 mSDsluCounter, 893 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 835 mSDsCounter, 281 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2042 IncrementalHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 281 mSolverCounterUnsat, 58 mSDtfsCounter, 2042 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=241occurred in iteration=9, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 2528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 02:17:08,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bc21f72-641c-4c96-83fc-1f9d2d938ea2/bin/uautomizer-QkZJyEgLgS/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