./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_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_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/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_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/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_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/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 c5d6625a918041bec3ddf6b8a37ec84fd94f58444755be51392d35f521d3d51e --- 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 01:53:37,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:53:37,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:53:37,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:53:37,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:53:37,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:53:37,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:53:37,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:53:37,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:53:37,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:53:37,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:53:37,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:53:37,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:53:37,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:53:37,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:53:37,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:53:37,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:53:37,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:53:37,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:53:37,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:53:37,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:53:37,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:53:37,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:53:37,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:53:37,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:53:37,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:53:37,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:53:37,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:53:37,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:53:37,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:53:37,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:53:37,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:53:37,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:53:37,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:53:37,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:53:37,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:53:37,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:53:37,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:53:37,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:53:37,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:53:37,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:53:37,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-23 01:53:37,524 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:53:37,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:53:37,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:53:37,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:53:37,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:53:37,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:53:37,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:53:37,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:53:37,531 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:53:37,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:53:37,532 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 01:53:37,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:53:37,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:53:37,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 01:53:37,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:53:37,533 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 01:53:37,533 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 01:53:37,533 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 01:53:37,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:53:37,534 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 01:53:37,534 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 01:53:37,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:53:37,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:53:37,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:53:37,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:53:37,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:53:37,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:53:37,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:53:37,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:53:37,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:53:37,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:53:37,537 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:53:37,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:53:37,537 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_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5d6625a918041bec3ddf6b8a37ec84fd94f58444755be51392d35f521d3d51e [2022-11-23 01:53:37,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:53:37,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:53:37,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:53:37,910 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:53:37,911 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:53:37,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-wmm/safe011_tso.i [2022-11-23 01:53:40,970 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:53:41,260 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:53:41,261 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/sv-benchmarks/c/pthread-wmm/safe011_tso.i [2022-11-23 01:53:41,273 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/data/5798648c2/69595ca1ee3d45dfbe0892af0fc0c8c9/FLAGbfe2cbbf8 [2022-11-23 01:53:41,290 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/data/5798648c2/69595ca1ee3d45dfbe0892af0fc0c8c9 [2022-11-23 01:53:41,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:53:41,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:53:41,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:53:41,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:53:41,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:53:41,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:41,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f188c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41, skipping insertion in model container [2022-11-23 01:53:41,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:41,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:53:41,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:53:41,580 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_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/sv-benchmarks/c/pthread-wmm/safe011_tso.i[945,958] [2022-11-23 01:53:41,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:53:41,829 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:53:41,844 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_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/sv-benchmarks/c/pthread-wmm/safe011_tso.i[945,958] [2022-11-23 01:53:41,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:53:41,944 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:53:41,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41 WrapperNode [2022-11-23 01:53:41,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:53:41,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:53:41,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:53:41,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:53:41,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:41,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,013 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-23 01:53:42,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:53:42,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:53:42,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:53:42,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:53:42,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,062 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:53:42,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:53:42,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:53:42,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:53:42,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (1/1) ... [2022-11-23 01:53:42,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:53:42,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:53:42,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:53:42,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:53:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 01:53:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 01:53:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:53:42,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 01:53:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 01:53:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 01:53:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 01:53:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 01:53:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 01:53:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 01:53:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 01:53:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 01:53:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 01:53:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:53:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:53:42,170 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 01:53:42,340 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:53:42,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:53:42,574 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:53:42,581 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:53:42,581 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 01:53:42,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:42 BoogieIcfgContainer [2022-11-23 01:53:42,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:53:42,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:53:42,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:53:42,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:53:42,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:53:41" (1/3) ... [2022-11-23 01:53:42,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577f8e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:42, skipping insertion in model container [2022-11-23 01:53:42,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:41" (2/3) ... [2022-11-23 01:53:42,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577f8e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:42, skipping insertion in model container [2022-11-23 01:53:42,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:42" (3/3) ... [2022-11-23 01:53:42,592 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2022-11-23 01:53:42,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:53:42,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 01:53:42,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 01:53:42,670 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 01:53:42,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 101 transitions, 217 flow [2022-11-23 01:53:42,755 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-23 01:53:42,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 01:53:42,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-23 01:53:42,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 101 transitions, 217 flow [2022-11-23 01:53:42,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 93 transitions, 195 flow [2022-11-23 01:53:42,769 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 01:53:42,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 93 transitions, 195 flow [2022-11-23 01:53:42,787 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 93 transitions, 195 flow [2022-11-23 01:53:42,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 195 flow [2022-11-23 01:53:42,812 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-11-23 01:53:42,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 01:53:42,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-23 01:53:42,815 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-11-23 01:53:46,178 INFO L134 LiptonReduction]: Checked pairs total: 2989 [2022-11-23 01:53:46,178 INFO L136 LiptonReduction]: Total number of compositions: 96 [2022-11-23 01:53:46,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:53:46,213 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;@6136175d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:53:46,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-23 01:53:46,216 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-23 01:53:46,217 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 01:53:46,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:46,218 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 01:53:46,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:46,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash 353, now seen corresponding path program 1 times [2022-11-23 01:53:46,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:46,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840349881] [2022-11-23 01:53:46,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:46,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:46,364 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 01:53:46,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:46,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840349881] [2022-11-23 01:53:46,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840349881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:46,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:46,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 01:53:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497637626] [2022-11-23 01:53:46,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:46,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 01:53:46,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 01:53:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 01:53:46,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 197 [2022-11-23 01:53:46,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 01:53:46,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:46,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 197 [2022-11-23 01:53:46,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:46,594 INFO L130 PetriNetUnfolder]: 272/457 cut-off events. [2022-11-23 01:53:46,597 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-23 01:53:46,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 457 events. 272/457 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1990 event pairs, 272 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 909. Up to 433 conditions per place. [2022-11-23 01:53:46,606 INFO L137 encePairwiseOnDemand]: 190/197 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-11-23 01:53:46,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2022-11-23 01:53:46,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 01:53:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 01:53:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 213 transitions. [2022-11-23 01:53:46,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5406091370558376 [2022-11-23 01:53:46,625 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 213 transitions. [2022-11-23 01:53:46,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 213 transitions. [2022-11-23 01:53:46,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:46,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 213 transitions. [2022-11-23 01:53:46,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 106.5) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 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 01:53:46,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 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 01:53:46,646 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 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 01:53:46,648 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 213 transitions. [2022-11-23 01:53:46,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2022-11-23 01:53:46,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 01:53:46,670 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2022-11-23 01:53:46,672 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-11-23 01:53:46,676 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2022-11-23 01:53:46,676 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2022-11-23 01:53:46,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 01:53:46,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:46,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:53:46,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash 423860609, now seen corresponding path program 1 times [2022-11-23 01:53:46,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:46,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467615896] [2022-11-23 01:53:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:46,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:47,459 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 01:53:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:47,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467615896] [2022-11-23 01:53:47,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467615896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:47,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:47,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:53:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547981398] [2022-11-23 01:53:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:47,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:53:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:53:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:53:47,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 197 [2022-11-23 01:53:47,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 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 01:53:47,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:47,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 197 [2022-11-23 01:53:47,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:47,794 INFO L130 PetriNetUnfolder]: 218/373 cut-off events. [2022-11-23 01:53:47,794 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 01:53:47,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 373 events. 218/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1570 event pairs, 54 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 750. Up to 327 conditions per place. [2022-11-23 01:53:47,801 INFO L137 encePairwiseOnDemand]: 193/197 looper letters, 18 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2022-11-23 01:53:47,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 96 flow [2022-11-23 01:53:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 01:53:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 01:53:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 422 transitions. [2022-11-23 01:53:47,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42842639593908627 [2022-11-23 01:53:47,809 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 422 transitions. [2022-11-23 01:53:47,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 422 transitions. [2022-11-23 01:53:47,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:47,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 422 transitions. [2022-11-23 01:53:47,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 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 01:53:47,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:47,817 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:47,817 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 422 transitions. [2022-11-23 01:53:47,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 96 flow [2022-11-23 01:53:47,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 01:53:47,819 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 48 flow [2022-11-23 01:53:47,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2022-11-23 01:53:47,820 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2022-11-23 01:53:47,820 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 48 flow [2022-11-23 01:53:47,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 0 states have call successors, (0), 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 01:53:47,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:47,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:47,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 01:53:47,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:47,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:47,826 INFO L85 PathProgramCache]: Analyzing trace with hash 423860593, now seen corresponding path program 1 times [2022-11-23 01:53:47,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:47,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187594336] [2022-11-23 01:53:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:47,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:47,984 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 01:53:47,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:47,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187594336] [2022-11-23 01:53:47,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187594336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:47,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:47,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 01:53:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139728882] [2022-11-23 01:53:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:47,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 01:53:47,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:53:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:53:48,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 197 [2022-11-23 01:53:48,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:53:48,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:48,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 197 [2022-11-23 01:53:48,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:48,207 INFO L130 PetriNetUnfolder]: 682/1147 cut-off events. [2022-11-23 01:53:48,208 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-23 01:53:48,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 1147 events. 682/1147 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 6106 event pairs, 218 based on Foata normal form. 76/1223 useless extension candidates. Maximal degree in co-relation 2311. Up to 504 conditions per place. [2022-11-23 01:53:48,214 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 25 selfloop transitions, 6 changer transitions 17/49 dead transitions. [2022-11-23 01:53:48,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 49 transitions, 214 flow [2022-11-23 01:53:48,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 01:53:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 01:53:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 475 transitions. [2022-11-23 01:53:48,217 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48223350253807107 [2022-11-23 01:53:48,217 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 475 transitions. [2022-11-23 01:53:48,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 475 transitions. [2022-11-23 01:53:48,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:48,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 475 transitions. [2022-11-23 01:53:48,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 0 states have call successors, (0), 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 01:53:48,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:48,222 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:48,222 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 48 flow. Second operand 5 states and 475 transitions. [2022-11-23 01:53:48,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 49 transitions, 214 flow [2022-11-23 01:53:48,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 01:53:48,224 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 103 flow [2022-11-23 01:53:48,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2022-11-23 01:53:48,225 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-11-23 01:53:48,225 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 103 flow [2022-11-23 01:53:48,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:53:48,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:48,226 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:48,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 01:53:48,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:48,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:48,227 INFO L85 PathProgramCache]: Analyzing trace with hash 254745589, now seen corresponding path program 1 times [2022-11-23 01:53:48,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:48,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982951746] [2022-11-23 01:53:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:48,387 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 01:53:48,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:48,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982951746] [2022-11-23 01:53:48,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982951746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:48,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:48,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:53:48,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796993560] [2022-11-23 01:53:48,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:48,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:53:48,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:48,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:53:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:53:48,412 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 197 [2022-11-23 01:53:48,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 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 01:53:48,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:48,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 197 [2022-11-23 01:53:48,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:48,621 INFO L130 PetriNetUnfolder]: 578/984 cut-off events. [2022-11-23 01:53:48,621 INFO L131 PetriNetUnfolder]: For 897/897 co-relation queries the response was YES. [2022-11-23 01:53:48,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2955 conditions, 984 events. 578/984 cut-off events. For 897/897 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5133 event pairs, 103 based on Foata normal form. 66/1045 useless extension candidates. Maximal degree in co-relation 2948. Up to 351 conditions per place. [2022-11-23 01:53:48,633 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 28 selfloop transitions, 7 changer transitions 23/59 dead transitions. [2022-11-23 01:53:48,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 59 transitions, 373 flow [2022-11-23 01:53:48,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:53:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 01:53:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 651 transitions. [2022-11-23 01:53:48,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4720812182741117 [2022-11-23 01:53:48,636 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 651 transitions. [2022-11-23 01:53:48,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 651 transitions. [2022-11-23 01:53:48,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:48,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 651 transitions. [2022-11-23 01:53:48,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 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 01:53:48,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:48,644 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:48,644 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 103 flow. Second operand 7 states and 651 transitions. [2022-11-23 01:53:48,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 59 transitions, 373 flow [2022-11-23 01:53:48,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 59 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 01:53:48,655 INFO L231 Difference]: Finished difference. Result has 43 places, 26 transitions, 151 flow [2022-11-23 01:53:48,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2022-11-23 01:53:48,657 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2022-11-23 01:53:48,657 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 26 transitions, 151 flow [2022-11-23 01:53:48,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 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 01:53:48,658 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:48,658 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:48,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 01:53:48,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:48,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:48,659 INFO L85 PathProgramCache]: Analyzing trace with hash 254749433, now seen corresponding path program 1 times [2022-11-23 01:53:48,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:48,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319508310] [2022-11-23 01:53:48,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:48,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:48,839 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 01:53:48,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:48,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319508310] [2022-11-23 01:53:48,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319508310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:48,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:48,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:53:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054487640] [2022-11-23 01:53:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:48,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:53:48,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:53:48,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:53:48,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 197 [2022-11-23 01:53:48,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 26 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 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 01:53:48,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:48,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 197 [2022-11-23 01:53:48,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:49,072 INFO L130 PetriNetUnfolder]: 526/921 cut-off events. [2022-11-23 01:53:49,072 INFO L131 PetriNetUnfolder]: For 2473/2473 co-relation queries the response was YES. [2022-11-23 01:53:49,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3135 conditions, 921 events. 526/921 cut-off events. For 2473/2473 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4821 event pairs, 93 based on Foata normal form. 58/978 useless extension candidates. Maximal degree in co-relation 3123. Up to 375 conditions per place. [2022-11-23 01:53:49,080 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 35 selfloop transitions, 11 changer transitions 19/66 dead transitions. [2022-11-23 01:53:49,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 66 transitions, 473 flow [2022-11-23 01:53:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:53:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 01:53:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 658 transitions. [2022-11-23 01:53:49,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47715736040609136 [2022-11-23 01:53:49,084 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 658 transitions. [2022-11-23 01:53:49,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 658 transitions. [2022-11-23 01:53:49,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:49,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 658 transitions. [2022-11-23 01:53:49,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 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 01:53:49,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:49,092 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:49,092 INFO L175 Difference]: Start difference. First operand has 43 places, 26 transitions, 151 flow. Second operand 7 states and 658 transitions. [2022-11-23 01:53:49,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 66 transitions, 473 flow [2022-11-23 01:53:49,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 66 transitions, 456 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-23 01:53:49,103 INFO L231 Difference]: Finished difference. Result has 49 places, 30 transitions, 221 flow [2022-11-23 01:53:49,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=221, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2022-11-23 01:53:49,106 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2022-11-23 01:53:49,106 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 221 flow [2022-11-23 01:53:49,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 0 states have call successors, (0), 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 01:53:49,107 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:49,107 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:49,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 01:53:49,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash -692848395, now seen corresponding path program 1 times [2022-11-23 01:53:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625370012] [2022-11-23 01:53:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:49,281 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 01:53:49,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:49,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625370012] [2022-11-23 01:53:49,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625370012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:49,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:49,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 01:53:49,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703445373] [2022-11-23 01:53:49,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:49,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 01:53:49,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:49,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:53:49,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:53:49,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 197 [2022-11-23 01:53:49,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 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 01:53:49,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:49,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 197 [2022-11-23 01:53:49,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:49,485 INFO L130 PetriNetUnfolder]: 421/774 cut-off events. [2022-11-23 01:53:49,485 INFO L131 PetriNetUnfolder]: For 2697/2714 co-relation queries the response was YES. [2022-11-23 01:53:49,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2863 conditions, 774 events. 421/774 cut-off events. For 2697/2714 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4047 event pairs, 170 based on Foata normal form. 57/828 useless extension candidates. Maximal degree in co-relation 2846. Up to 577 conditions per place. [2022-11-23 01:53:49,493 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 33 selfloop transitions, 7 changer transitions 12/56 dead transitions. [2022-11-23 01:53:49,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 494 flow [2022-11-23 01:53:49,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 01:53:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 01:53:49,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 487 transitions. [2022-11-23 01:53:49,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49441624365482234 [2022-11-23 01:53:49,496 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 487 transitions. [2022-11-23 01:53:49,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 487 transitions. [2022-11-23 01:53:49,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:49,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 487 transitions. [2022-11-23 01:53:49,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:53:49,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:49,502 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:49,502 INFO L175 Difference]: Start difference. First operand has 49 places, 30 transitions, 221 flow. Second operand 5 states and 487 transitions. [2022-11-23 01:53:49,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 494 flow [2022-11-23 01:53:49,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 56 transitions, 476 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-11-23 01:53:49,513 INFO L231 Difference]: Finished difference. Result has 48 places, 35 transitions, 293 flow [2022-11-23 01:53:49,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=293, PETRI_PLACES=48, PETRI_TRANSITIONS=35} [2022-11-23 01:53:49,516 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2022-11-23 01:53:49,517 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 293 flow [2022-11-23 01:53:49,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 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 01:53:49,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:49,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:49,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 01:53:49,518 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:49,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash 539133983, now seen corresponding path program 1 times [2022-11-23 01:53:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:49,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942069690] [2022-11-23 01:53:49,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:49,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:49,712 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 01:53:49,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:49,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942069690] [2022-11-23 01:53:49,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942069690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:49,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:49,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:53:49,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076163359] [2022-11-23 01:53:49,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:49,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:53:49,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:49,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:53:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:53:49,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2022-11-23 01:53:49,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 293 flow. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:53:49,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:49,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2022-11-23 01:53:49,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:50,032 INFO L130 PetriNetUnfolder]: 737/1195 cut-off events. [2022-11-23 01:53:50,032 INFO L131 PetriNetUnfolder]: For 4554/4554 co-relation queries the response was YES. [2022-11-23 01:53:50,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4648 conditions, 1195 events. 737/1195 cut-off events. For 4554/4554 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5491 event pairs, 74 based on Foata normal form. 57/1252 useless extension candidates. Maximal degree in co-relation 4632. Up to 345 conditions per place. [2022-11-23 01:53:50,042 INFO L137 encePairwiseOnDemand]: 188/197 looper letters, 50 selfloop transitions, 26 changer transitions 29/105 dead transitions. [2022-11-23 01:53:50,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 105 transitions, 996 flow [2022-11-23 01:53:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 01:53:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 01:53:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 826 transitions. [2022-11-23 01:53:50,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4658770445572476 [2022-11-23 01:53:50,045 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 826 transitions. [2022-11-23 01:53:50,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 826 transitions. [2022-11-23 01:53:50,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:50,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 826 transitions. [2022-11-23 01:53:50,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.77777777777777) internal successors, (826), 9 states have internal predecessors, (826), 0 states have call successors, (0), 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 01:53:50,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 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 01:53:50,051 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 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 01:53:50,051 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 293 flow. Second operand 9 states and 826 transitions. [2022-11-23 01:53:50,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 105 transitions, 996 flow [2022-11-23 01:53:50,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 105 transitions, 969 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-11-23 01:53:50,061 INFO L231 Difference]: Finished difference. Result has 60 places, 49 transitions, 555 flow [2022-11-23 01:53:50,061 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=555, PETRI_PLACES=60, PETRI_TRANSITIONS=49} [2022-11-23 01:53:50,062 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 25 predicate places. [2022-11-23 01:53:50,062 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 555 flow [2022-11-23 01:53:50,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 01:53:50,062 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:50,062 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:50,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 01:53:50,063 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1401292235, now seen corresponding path program 1 times [2022-11-23 01:53:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:50,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99587114] [2022-11-23 01:53:50,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:50,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:50,215 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 01:53:50,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:50,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99587114] [2022-11-23 01:53:50,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99587114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:50,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:50,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 01:53:50,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333959561] [2022-11-23 01:53:50,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:50,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 01:53:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:53:50,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:53:50,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2022-11-23 01:53:50,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 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 01:53:50,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:50,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2022-11-23 01:53:50,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:50,505 INFO L130 PetriNetUnfolder]: 713/1173 cut-off events. [2022-11-23 01:53:50,505 INFO L131 PetriNetUnfolder]: For 7827/7827 co-relation queries the response was YES. [2022-11-23 01:53:50,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5376 conditions, 1173 events. 713/1173 cut-off events. For 7827/7827 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5434 event pairs, 122 based on Foata normal form. 57/1230 useless extension candidates. Maximal degree in co-relation 5354. Up to 404 conditions per place. [2022-11-23 01:53:50,513 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 35 selfloop transitions, 9 changer transitions 50/94 dead transitions. [2022-11-23 01:53:50,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 94 transitions, 1101 flow [2022-11-23 01:53:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:53:50,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 01:53:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 639 transitions. [2022-11-23 01:53:50,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46337926033357507 [2022-11-23 01:53:50,516 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 639 transitions. [2022-11-23 01:53:50,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 639 transitions. [2022-11-23 01:53:50,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:50,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 639 transitions. [2022-11-23 01:53:50,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.28571428571429) internal successors, (639), 7 states have internal predecessors, (639), 0 states have call successors, (0), 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 01:53:50,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:50,521 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:50,522 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 555 flow. Second operand 7 states and 639 transitions. [2022-11-23 01:53:50,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 94 transitions, 1101 flow [2022-11-23 01:53:50,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 94 transitions, 1075 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-11-23 01:53:50,548 INFO L231 Difference]: Finished difference. Result has 62 places, 30 transitions, 322 flow [2022-11-23 01:53:50,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=322, PETRI_PLACES=62, PETRI_TRANSITIONS=30} [2022-11-23 01:53:50,549 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2022-11-23 01:53:50,549 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 30 transitions, 322 flow [2022-11-23 01:53:50,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 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 01:53:50,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:50,550 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:50,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 01:53:50,550 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:50,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash -971768755, now seen corresponding path program 1 times [2022-11-23 01:53:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:50,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005929005] [2022-11-23 01:53:50,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:50,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:50,671 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 01:53:50,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:50,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005929005] [2022-11-23 01:53:50,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005929005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:50,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:50,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 01:53:50,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895361455] [2022-11-23 01:53:50,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:50,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 01:53:50,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 01:53:50,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 01:53:50,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 197 [2022-11-23 01:53:50,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 30 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 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 01:53:50,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:50,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 197 [2022-11-23 01:53:50,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:50,799 INFO L130 PetriNetUnfolder]: 176/359 cut-off events. [2022-11-23 01:53:50,799 INFO L131 PetriNetUnfolder]: For 2585/2611 co-relation queries the response was YES. [2022-11-23 01:53:50,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 359 events. 176/359 cut-off events. For 2585/2611 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1657 event pairs, 36 based on Foata normal form. 22/374 useless extension candidates. Maximal degree in co-relation 1637. Up to 211 conditions per place. [2022-11-23 01:53:50,803 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 40 selfloop transitions, 8 changer transitions 4/62 dead transitions. [2022-11-23 01:53:50,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 718 flow [2022-11-23 01:53:50,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 01:53:50,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 01:53:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 490 transitions. [2022-11-23 01:53:50,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49746192893401014 [2022-11-23 01:53:50,806 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 490 transitions. [2022-11-23 01:53:50,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 490 transitions. [2022-11-23 01:53:50,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:50,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 490 transitions. [2022-11-23 01:53:50,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 0 states have call successors, (0), 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 01:53:50,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:50,810 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 01:53:50,810 INFO L175 Difference]: Start difference. First operand has 62 places, 30 transitions, 322 flow. Second operand 5 states and 490 transitions. [2022-11-23 01:53:50,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 718 flow [2022-11-23 01:53:50,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 534 flow, removed 35 selfloop flow, removed 13 redundant places. [2022-11-23 01:53:50,816 INFO L231 Difference]: Finished difference. Result has 54 places, 37 transitions, 284 flow [2022-11-23 01:53:50,816 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=284, PETRI_PLACES=54, PETRI_TRANSITIONS=37} [2022-11-23 01:53:50,817 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2022-11-23 01:53:50,817 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 37 transitions, 284 flow [2022-11-23 01:53:50,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 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 01:53:50,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:50,818 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:50,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 01:53:50,818 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:50,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:50,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1506573993, now seen corresponding path program 1 times [2022-11-23 01:53:50,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:50,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628130537] [2022-11-23 01:53:50,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:50,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:50,938 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 01:53:50,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:50,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628130537] [2022-11-23 01:53:50,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628130537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:50,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:50,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 01:53:50,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881134200] [2022-11-23 01:53:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:50,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 01:53:50,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:50,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 01:53:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 01:53:50,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 197 [2022-11-23 01:53:50,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 37 transitions, 284 flow. Second operand has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 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 01:53:50,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:50,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 197 [2022-11-23 01:53:50,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:51,103 INFO L130 PetriNetUnfolder]: 151/323 cut-off events. [2022-11-23 01:53:51,103 INFO L131 PetriNetUnfolder]: For 1183/1262 co-relation queries the response was YES. [2022-11-23 01:53:51,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 323 events. 151/323 cut-off events. For 1183/1262 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1535 event pairs, 13 based on Foata normal form. 51/367 useless extension candidates. Maximal degree in co-relation 1445. Up to 157 conditions per place. [2022-11-23 01:53:51,106 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 42 selfloop transitions, 15 changer transitions 10/77 dead transitions. [2022-11-23 01:53:51,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 77 transitions, 735 flow [2022-11-23 01:53:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 01:53:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 01:53:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 683 transitions. [2022-11-23 01:53:51,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.495286439448876 [2022-11-23 01:53:51,109 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 683 transitions. [2022-11-23 01:53:51,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 683 transitions. [2022-11-23 01:53:51,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:51,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 683 transitions. [2022-11-23 01:53:51,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 0 states have call successors, (0), 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 01:53:51,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:51,114 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 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 01:53:51,114 INFO L175 Difference]: Start difference. First operand has 54 places, 37 transitions, 284 flow. Second operand 7 states and 683 transitions. [2022-11-23 01:53:51,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 77 transitions, 735 flow [2022-11-23 01:53:51,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 709 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-23 01:53:51,119 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 365 flow [2022-11-23 01:53:51,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=365, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2022-11-23 01:53:51,120 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 26 predicate places. [2022-11-23 01:53:51,120 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 365 flow [2022-11-23 01:53:51,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 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 01:53:51,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 01:53:51,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:51,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 01:53:51,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-23 01:53:51,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:53:51,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1577265503, now seen corresponding path program 1 times [2022-11-23 01:53:51,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:53:51,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65078679] [2022-11-23 01:53:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:53:51,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:53:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 01:53:51,260 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 01:53:51,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 01:53:51,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65078679] [2022-11-23 01:53:51,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65078679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 01:53:51,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 01:53:51,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 01:53:51,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169810484] [2022-11-23 01:53:51,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 01:53:51,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 01:53:51,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 01:53:51,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 01:53:51,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 01:53:51,286 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 197 [2022-11-23 01:53:51,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 365 flow. Second operand has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 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 01:53:51,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 01:53:51,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 197 [2022-11-23 01:53:51,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 01:53:51,431 INFO L130 PetriNetUnfolder]: 141/306 cut-off events. [2022-11-23 01:53:51,432 INFO L131 PetriNetUnfolder]: For 1346/1428 co-relation queries the response was YES. [2022-11-23 01:53:51,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 306 events. 141/306 cut-off events. For 1346/1428 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1472 event pairs, 10 based on Foata normal form. 48/347 useless extension candidates. Maximal degree in co-relation 1544. Up to 147 conditions per place. [2022-11-23 01:53:51,434 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2022-11-23 01:53:51,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 74 transitions, 736 flow [2022-11-23 01:53:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 01:53:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 01:53:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 859 transitions. [2022-11-23 01:53:51,437 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4844895657078398 [2022-11-23 01:53:51,437 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 859 transitions. [2022-11-23 01:53:51,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 859 transitions. [2022-11-23 01:53:51,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 01:53:51,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 859 transitions. [2022-11-23 01:53:51,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 95.44444444444444) internal successors, (859), 9 states have internal predecessors, (859), 0 states have call successors, (0), 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 01:53:51,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 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 01:53:51,444 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 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 01:53:51,444 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 365 flow. Second operand 9 states and 859 transitions. [2022-11-23 01:53:51,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 74 transitions, 736 flow [2022-11-23 01:53:51,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 643 flow, removed 23 selfloop flow, removed 10 redundant places. [2022-11-23 01:53:51,453 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2022-11-23 01:53:51,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2022-11-23 01:53:51,454 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2022-11-23 01:53:51,454 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2022-11-23 01:53:51,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 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 01:53:51,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-11-23 01:53:51,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-23 01:53:51,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-23 01:53:51,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-23 01:53:51,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-23 01:53:51,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-23 01:53:51,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-11-23 01:53:51,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-11-23 01:53:51,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-11-23 01:53:51,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-11-23 01:53:51,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-11-23 01:53:51,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 01:53:51,461 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:53:51,464 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 01:53:51,464 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:53:51,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:53:51 BasicIcfg [2022-11-23 01:53:51,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:53:51,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:53:51,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:53:51,469 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:53:51,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:42" (3/4) ... [2022-11-23 01:53:51,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 01:53:51,479 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 01:53:51,479 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 01:53:51,479 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 01:53:51,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-23 01:53:51,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 01:53:51,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 01:53:51,484 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 01:53:51,515 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 01:53:51,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:53:51,516 INFO L158 Benchmark]: Toolchain (without parser) took 10217.44ms. Allocated memory was 146.8MB in the beginning and 264.2MB in the end (delta: 117.4MB). Free memory was 117.6MB in the beginning and 152.8MB in the end (delta: -35.2MB). Peak memory consumption was 85.4MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,517 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 87.6MB in the end (delta: 111.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:53:51,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.22ms. Allocated memory is still 146.8MB. Free memory was 117.0MB in the beginning and 96.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.61ms. Allocated memory is still 146.8MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,518 INFO L158 Benchmark]: Boogie Preprocessor took 50.90ms. Allocated memory is still 146.8MB. Free memory was 94.8MB in the beginning and 93.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,518 INFO L158 Benchmark]: RCFGBuilder took 508.95ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 78.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,519 INFO L158 Benchmark]: TraceAbstraction took 8881.33ms. Allocated memory was 146.8MB in the beginning and 264.2MB in the end (delta: 117.4MB). Free memory was 78.1MB in the beginning and 156.0MB in the end (delta: -77.9MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,519 INFO L158 Benchmark]: Witness Printer took 47.68ms. Allocated memory is still 264.2MB. Free memory was 156.0MB in the beginning and 152.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 01:53:51,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 87.6MB in the end (delta: 111.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.22ms. Allocated memory is still 146.8MB. Free memory was 117.0MB in the beginning and 96.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.61ms. Allocated memory is still 146.8MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.90ms. Allocated memory is still 146.8MB. Free memory was 94.8MB in the beginning and 93.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.95ms. Allocated memory is still 146.8MB. Free memory was 93.3MB in the beginning and 78.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8881.33ms. Allocated memory was 146.8MB in the beginning and 264.2MB in the end (delta: 117.4MB). Free memory was 78.1MB in the beginning and 156.0MB in the end (delta: -77.9MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 47.68ms. Allocated memory is still 264.2MB. Free memory was 156.0MB in the beginning and 152.8MB 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: 3.4s, 101 PlacesBefore, 35 PlacesAfterwards, 93 TransitionsBefore, 26 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 96 TotalNumberOfCompositions, 2989 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1619, independent: 1540, independent conditional: 0, independent unconditional: 1540, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1074, independent: 1043, independent conditional: 0, independent unconditional: 1043, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1074, independent: 1037, independent conditional: 0, independent unconditional: 1037, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 123, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1619, independent: 497, independent conditional: 0, independent unconditional: 497, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 1074, unknown conditional: 0, unknown unconditional: 1074] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 774]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 124 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 542 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 427 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 987 IncrementalHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 84 mSDtfsCounter, 987 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=555occurred in iteration=7, InterpolantAutomatonStates: 68, 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 01:53:51,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32cc3128-9d40-4b8e-a0a8-ff21f9cc6118/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