./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI --witnessprinter.witness.filename witness --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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:50:37,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:50:37,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:50:37,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:50:37,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:50:37,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:50:37,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:50:37,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:50:37,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:50:37,461 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:50:37,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:50:37,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:50:37,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:50:37,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:50:37,464 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:50:37,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:50:37,466 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:50:37,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:50:37,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:50:37,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:50:37,468 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:50:37,468 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:50:37,469 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:50:37,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:50:37,470 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:50:37,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:50:37,471 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:50:37,471 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:50:37,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:50:37,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:50:37,473 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:50:37,473 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:50:37,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:50:37,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:50:37,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:50:37,474 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:50:37,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:50:37,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:50:37,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:50:37,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:50:37,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:50:37,476 INFO L153 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_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2023-11-24 21:50:37,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:50:37,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:50:37,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:50:37,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:50:37,791 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:50:37,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2023-11-24 21:50:41,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:50:41,288 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:50:41,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2023-11-24 21:50:41,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/data/5c9e09421/a94e66fca58f400eaa935ad67cff530f/FLAG590a89e00 [2023-11-24 21:50:41,329 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/data/5c9e09421/a94e66fca58f400eaa935ad67cff530f [2023-11-24 21:50:41,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:50:41,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:50:41,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:50:41,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:50:41,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:50:41,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:50:41" (1/1) ... [2023-11-24 21:50:41,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182ed743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:41, skipping insertion in model container [2023-11-24 21:50:41,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:50:41" (1/1) ... [2023-11-24 21:50:41,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:50:42,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:50:42,109 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:50:42,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:50:42,297 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:50:42,297 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:50:42,306 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:50:42,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42 WrapperNode [2023-11-24 21:50:42,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:50:42,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:50:42,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:50:42,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:50:42,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,433 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 217 [2023-11-24 21:50:42,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:50:42,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:50:42,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:50:42,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:50:42,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,516 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-24 21:50:42,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:50:42,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:50:42,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:50:42,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:50:42,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (1/1) ... [2023-11-24 21:50:42,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:50:42,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:50:42,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:50:42,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:50:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:50:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:50:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:50:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 21:50:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:50:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:50:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:50:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-24 21:50:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-24 21:50:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-24 21:50:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-24 21:50:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:50:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:50:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:50:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 21:50:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:50:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:50:42,681 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 21:50:42,874 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:50:42,876 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:50:43,534 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:50:43,883 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:50:43,884 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 21:50:43,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:50:43 BoogieIcfgContainer [2023-11-24 21:50:43,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:50:43,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:50:43,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:50:43,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:50:43,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:50:41" (1/3) ... [2023-11-24 21:50:43,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142e59b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:50:43, skipping insertion in model container [2023-11-24 21:50:43,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:42" (2/3) ... [2023-11-24 21:50:43,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142e59b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:50:43, skipping insertion in model container [2023-11-24 21:50:43,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:50:43" (3/3) ... [2023-11-24 21:50:43,904 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2023-11-24 21:50:43,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:50:43,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-24 21:50:43,927 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 21:50:44,027 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 21:50:44,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 98 flow [2023-11-24 21:50:44,125 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2023-11-24 21:50:44,126 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:50:44,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-11-24 21:50:44,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 45 transitions, 98 flow [2023-11-24 21:50:44,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 43 transitions, 92 flow [2023-11-24 21:50:44,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:50:44,171 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;@4c89363c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:50:44,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-24 21:50:44,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-24 21:50:44,178 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-24 21:50:44,178 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:50:44,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:44,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-24 21:50:44,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:44,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:44,196 INFO L85 PathProgramCache]: Analyzing trace with hash 18499, now seen corresponding path program 1 times [2023-11-24 21:50:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:44,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672812828] [2023-11-24 21:50:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:44,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:44,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:44,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672812828] [2023-11-24 21:50:44,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672812828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:44,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:44,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:50:44,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239159831] [2023-11-24 21:50:44,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:44,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:44,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:44,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:44,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2023-11-24 21:50:44,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:44,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:44,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2023-11-24 21:50:44,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:45,293 INFO L124 PetriNetUnfolderBase]: 648/1301 cut-off events. [2023-11-24 21:50:45,294 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-24 21:50:45,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1301 events. 648/1301 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8012 event pairs, 496 based on Foata normal form. 90/1287 useless extension candidates. Maximal degree in co-relation 2369. Up to 823 conditions per place. [2023-11-24 21:50:45,313 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 35 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-11-24 21:50:45,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 182 flow [2023-11-24 21:50:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:50:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-24 21:50:45,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-24 21:50:45,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-24 21:50:45,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-24 21:50:45,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:45,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-24 21:50:45,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:45,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:45,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:45,344 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 92 flow. Second operand 3 states and 88 transitions. [2023-11-24 21:50:45,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 182 flow [2023-11-24 21:50:45,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:45,351 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 86 flow [2023-11-24 21:50:45,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-11-24 21:50:45,359 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-11-24 21:50:45,359 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 86 flow [2023-11-24 21:50:45,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:45,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:45,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-24 21:50:45,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:50:45,361 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:45,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:45,362 INFO L85 PathProgramCache]: Analyzing trace with hash 18500, now seen corresponding path program 1 times [2023-11-24 21:50:45,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:45,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279582454] [2023-11-24 21:50:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:45,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:45,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:45,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279582454] [2023-11-24 21:50:45,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279582454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:45,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:45,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:50:45,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128249667] [2023-11-24 21:50:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:45,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:45,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:45,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:45,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-24 21:50:45,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:45,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:45,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-24 21:50:45,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:46,100 INFO L124 PetriNetUnfolderBase]: 648/1300 cut-off events. [2023-11-24 21:50:46,101 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-24 21:50:46,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 1300 events. 648/1300 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8026 event pairs, 496 based on Foata normal form. 1/1197 useless extension candidates. Maximal degree in co-relation 2414. Up to 822 conditions per place. [2023-11-24 21:50:46,117 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 34 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2023-11-24 21:50:46,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 180 flow [2023-11-24 21:50:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:46,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:50:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-24 21:50:46,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-24 21:50:46,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-24 21:50:46,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-24 21:50:46,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:46,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-24 21:50:46,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,133 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 86 flow. Second operand 3 states and 88 transitions. [2023-11-24 21:50:46,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 180 flow [2023-11-24 21:50:46,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:46,144 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 84 flow [2023-11-24 21:50:46,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-11-24 21:50:46,148 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-24 21:50:46,149 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 84 flow [2023-11-24 21:50:46,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:46,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 21:50:46,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:50:46,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:46,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash 551644610, now seen corresponding path program 1 times [2023-11-24 21:50:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577910435] [2023-11-24 21:50:46,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:46,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577910435] [2023-11-24 21:50:46,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577910435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:46,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:46,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:50:46,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847089796] [2023-11-24 21:50:46,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:46,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:46,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:46,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2023-11-24 21:50:46,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:46,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2023-11-24 21:50:46,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:46,678 INFO L124 PetriNetUnfolderBase]: 652/1289 cut-off events. [2023-11-24 21:50:46,678 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-24 21:50:46,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2423 conditions, 1289 events. 652/1289 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7907 event pairs, 312 based on Foata normal form. 0/1194 useless extension candidates. Maximal degree in co-relation 2412. Up to 825 conditions per place. [2023-11-24 21:50:46,689 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 35 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-11-24 21:50:46,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 180 flow [2023-11-24 21:50:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:46,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:50:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2023-11-24 21:50:46,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6370370370370371 [2023-11-24 21:50:46,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 86 transitions. [2023-11-24 21:50:46,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 86 transitions. [2023-11-24 21:50:46,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:46,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 86 transitions. [2023-11-24 21:50:46,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,694 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 84 flow. Second operand 3 states and 86 transitions. [2023-11-24 21:50:46,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 180 flow [2023-11-24 21:50:46,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 49 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:46,698 INFO L231 Difference]: Finished difference. Result has 44 places, 37 transitions, 82 flow [2023-11-24 21:50:46,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2023-11-24 21:50:46,699 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-11-24 21:50:46,699 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 82 flow [2023-11-24 21:50:46,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:46,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 21:50:46,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 21:50:46,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:46,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash 551644611, now seen corresponding path program 1 times [2023-11-24 21:50:46,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:46,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804081176] [2023-11-24 21:50:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:46,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:46,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804081176] [2023-11-24 21:50:46,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804081176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:46,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:46,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:50:46,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930596780] [2023-11-24 21:50:46,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:46,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:46,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:46,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:46,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-24 21:50:46,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:46,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:46,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-24 21:50:46,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:47,197 INFO L124 PetriNetUnfolderBase]: 648/1280 cut-off events. [2023-11-24 21:50:47,197 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-11-24 21:50:47,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1280 events. 648/1280 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7864 event pairs, 312 based on Foata normal form. 5/1190 useless extension candidates. Maximal degree in co-relation 2399. Up to 816 conditions per place. [2023-11-24 21:50:47,210 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 34 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-11-24 21:50:47,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 176 flow [2023-11-24 21:50:47,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:50:47,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2023-11-24 21:50:47,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-24 21:50:47,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 88 transitions. [2023-11-24 21:50:47,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 88 transitions. [2023-11-24 21:50:47,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:47,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 88 transitions. [2023-11-24 21:50:47,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,218 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 82 flow. Second operand 3 states and 88 transitions. [2023-11-24 21:50:47,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 176 flow [2023-11-24 21:50:47,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:47,223 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 80 flow [2023-11-24 21:50:47,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-11-24 21:50:47,225 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -5 predicate places. [2023-11-24 21:50:47,226 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 80 flow [2023-11-24 21:50:47,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:47,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:47,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:50:47,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:47,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1500241854, now seen corresponding path program 1 times [2023-11-24 21:50:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:47,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221202487] [2023-11-24 21:50:47,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:47,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:47,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:47,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221202487] [2023-11-24 21:50:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221202487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:47,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:47,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:50:47,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191683488] [2023-11-24 21:50:47,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:47,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:47,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:47,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:47,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:47,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2023-11-24 21:50:47,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:47,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2023-11-24 21:50:47,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:47,780 INFO L124 PetriNetUnfolderBase]: 572/1023 cut-off events. [2023-11-24 21:50:47,781 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-24 21:50:47,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1023 events. 572/1023 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5603 event pairs, 40 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 2016. Up to 848 conditions per place. [2023-11-24 21:50:47,790 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 33 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-11-24 21:50:47,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 174 flow [2023-11-24 21:50:47,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:47,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:50:47,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2023-11-24 21:50:47,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2023-11-24 21:50:47,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 90 transitions. [2023-11-24 21:50:47,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 90 transitions. [2023-11-24 21:50:47,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:47,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 90 transitions. [2023-11-24 21:50:47,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,795 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 80 flow. Second operand 3 states and 90 transitions. [2023-11-24 21:50:47,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 174 flow [2023-11-24 21:50:47,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:47,798 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 78 flow [2023-11-24 21:50:47,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-11-24 21:50:47,799 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-11-24 21:50:47,799 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 78 flow [2023-11-24 21:50:47,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:47,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:47,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 21:50:47,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:47,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash -737142185, now seen corresponding path program 1 times [2023-11-24 21:50:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:47,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064834639] [2023-11-24 21:50:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:47,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:47,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:47,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064834639] [2023-11-24 21:50:47,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064834639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:47,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:50:47,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211184957] [2023-11-24 21:50:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:47,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:47,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:47,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:47,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:47,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2023-11-24 21:50:47,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:47,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:47,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2023-11-24 21:50:47,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:48,208 INFO L124 PetriNetUnfolderBase]: 496/928 cut-off events. [2023-11-24 21:50:48,208 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-24 21:50:48,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1811 conditions, 928 events. 496/928 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5168 event pairs, 116 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 1800. Up to 606 conditions per place. [2023-11-24 21:50:48,216 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 30 selfloop transitions, 2 changer transitions 2/46 dead transitions. [2023-11-24 21:50:48,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 168 flow [2023-11-24 21:50:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:50:48,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2023-11-24 21:50:48,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2023-11-24 21:50:48,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 89 transitions. [2023-11-24 21:50:48,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 89 transitions. [2023-11-24 21:50:48,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:48,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 89 transitions. [2023-11-24 21:50:48,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:48,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:48,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:48,220 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 78 flow. Second operand 3 states and 89 transitions. [2023-11-24 21:50:48,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 168 flow [2023-11-24 21:50:48,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:48,222 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 74 flow [2023-11-24 21:50:48,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2023-11-24 21:50:48,226 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -7 predicate places. [2023-11-24 21:50:48,226 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 74 flow [2023-11-24 21:50:48,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:48,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:48,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:48,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 21:50:48,227 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:48,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash 551549781, now seen corresponding path program 1 times [2023-11-24 21:50:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:48,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031273453] [2023-11-24 21:50:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:48,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:48,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031273453] [2023-11-24 21:50:48,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031273453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:48,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:48,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:50:48,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846343466] [2023-11-24 21:50:48,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:48,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:50:48,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:48,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:50:48,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:50:48,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2023-11-24 21:50:48,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:48,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:48,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2023-11-24 21:50:48,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:49,528 INFO L124 PetriNetUnfolderBase]: 707/1428 cut-off events. [2023-11-24 21:50:49,529 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-24 21:50:49,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2708 conditions, 1428 events. 707/1428 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8878 event pairs, 599 based on Foata normal form. 35/1456 useless extension candidates. Maximal degree in co-relation 2696. Up to 627 conditions per place. [2023-11-24 21:50:49,541 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 38 selfloop transitions, 3 changer transitions 11/62 dead transitions. [2023-11-24 21:50:49,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 62 transitions, 242 flow [2023-11-24 21:50:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:50:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-24 21:50:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2023-11-24 21:50:49,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911111111111111 [2023-11-24 21:50:49,544 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 133 transitions. [2023-11-24 21:50:49,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 133 transitions. [2023-11-24 21:50:49,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:49,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 133 transitions. [2023-11-24 21:50:49,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:49,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:49,548 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:49,548 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 74 flow. Second operand 5 states and 133 transitions. [2023-11-24 21:50:49,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 62 transitions, 242 flow [2023-11-24 21:50:49,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:49,552 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 92 flow [2023-11-24 21:50:49,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-24 21:50:49,554 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-24 21:50:49,554 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 92 flow [2023-11-24 21:50:49,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:49,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:49,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:49,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 21:50:49,556 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:49,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash 551549858, now seen corresponding path program 1 times [2023-11-24 21:50:49,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:49,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423419505] [2023-11-24 21:50:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:49,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:49,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:49,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:49,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423419505] [2023-11-24 21:50:49,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423419505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:49,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:49,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:50:49,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465726836] [2023-11-24 21:50:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:49,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:50:49,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:49,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:50:49,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:50:49,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2023-11-24 21:50:49,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:49,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:49,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2023-11-24 21:50:49,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:50,224 INFO L124 PetriNetUnfolderBase]: 692/1394 cut-off events. [2023-11-24 21:50:50,224 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-24 21:50:50,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 1394 events. 692/1394 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7861 event pairs, 146 based on Foata normal form. 80/1473 useless extension candidates. Maximal degree in co-relation 2729. Up to 685 conditions per place. [2023-11-24 21:50:50,234 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 47 selfloop transitions, 4 changer transitions 1/61 dead transitions. [2023-11-24 21:50:50,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 256 flow [2023-11-24 21:50:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:50:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-24 21:50:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2023-11-24 21:50:50,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2023-11-24 21:50:50,236 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 112 transitions. [2023-11-24 21:50:50,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 112 transitions. [2023-11-24 21:50:50,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:50,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 112 transitions. [2023-11-24 21:50:50,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,239 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,239 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 92 flow. Second operand 4 states and 112 transitions. [2023-11-24 21:50:50,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 256 flow [2023-11-24 21:50:50,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 252 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:50,243 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 114 flow [2023-11-24 21:50:50,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-11-24 21:50:50,244 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-24 21:50:50,244 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 114 flow [2023-11-24 21:50:50,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:50,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:50,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 21:50:50,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:50,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1310547465, now seen corresponding path program 1 times [2023-11-24 21:50:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:50,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266032689] [2023-11-24 21:50:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:50,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:50,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:50,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266032689] [2023-11-24 21:50:50,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266032689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:50,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:50,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:50:50,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967113208] [2023-11-24 21:50:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:50,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:50:50,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:50,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:50:50,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:50:50,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2023-11-24 21:50:50,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:50,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2023-11-24 21:50:50,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:50,832 INFO L124 PetriNetUnfolderBase]: 308/618 cut-off events. [2023-11-24 21:50:50,833 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2023-11-24 21:50:50,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 618 events. 308/618 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2644 event pairs, 98 based on Foata normal form. 44/661 useless extension candidates. Maximal degree in co-relation 1452. Up to 258 conditions per place. [2023-11-24 21:50:50,838 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 38 selfloop transitions, 6 changer transitions 1/54 dead transitions. [2023-11-24 21:50:50,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 247 flow [2023-11-24 21:50:50,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:50:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-24 21:50:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2023-11-24 21:50:50,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-11-24 21:50:50,841 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 120 transitions. [2023-11-24 21:50:50,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 120 transitions. [2023-11-24 21:50:50,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:50,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 120 transitions. [2023-11-24 21:50:50,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,844 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,844 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 114 flow. Second operand 5 states and 120 transitions. [2023-11-24 21:50:50,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 247 flow [2023-11-24 21:50:50,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 238 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-24 21:50:50,851 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 130 flow [2023-11-24 21:50:50,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2023-11-24 21:50:50,853 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2023-11-24 21:50:50,853 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 130 flow [2023-11-24 21:50:50,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:50,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:50,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:50,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 21:50:50,855 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:50,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash 520631326, now seen corresponding path program 1 times [2023-11-24 21:50:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:50,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237137895] [2023-11-24 21:50:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:50,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:54,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:54,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237137895] [2023-11-24 21:50:54,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237137895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:54,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:54,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 21:50:54,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768818100] [2023-11-24 21:50:54,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:54,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 21:50:54,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:54,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 21:50:54,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-24 21:50:54,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-24 21:50:54,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 130 flow. Second operand has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:54,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:54,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-24 21:50:54,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:54,991 INFO L124 PetriNetUnfolderBase]: 291/636 cut-off events. [2023-11-24 21:50:54,991 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2023-11-24 21:50:54,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 636 events. 291/636 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2962 event pairs, 84 based on Foata normal form. 8/633 useless extension candidates. Maximal degree in co-relation 1445. Up to 202 conditions per place. [2023-11-24 21:50:54,997 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 43 selfloop transitions, 8 changer transitions 6/70 dead transitions. [2023-11-24 21:50:54,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 70 transitions, 328 flow [2023-11-24 21:50:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 21:50:54,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-24 21:50:54,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 192 transitions. [2023-11-24 21:50:54,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-11-24 21:50:54,999 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 192 transitions. [2023-11-24 21:50:54,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 192 transitions. [2023-11-24 21:50:55,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:55,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 192 transitions. [2023-11-24 21:50:55,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:55,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:55,003 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:55,003 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 130 flow. Second operand 8 states and 192 transitions. [2023-11-24 21:50:55,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 70 transitions, 328 flow [2023-11-24 21:50:55,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 70 transitions, 294 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-24 21:50:55,007 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 150 flow [2023-11-24 21:50:55,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2023-11-24 21:50:55,008 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2023-11-24 21:50:55,009 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 150 flow [2023-11-24 21:50:55,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:55,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:55,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:55,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 21:50:55,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:55,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:55,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1464318772, now seen corresponding path program 2 times [2023-11-24 21:50:55,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:55,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353201015] [2023-11-24 21:50:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:55,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:56,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:56,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353201015] [2023-11-24 21:50:56,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353201015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:56,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:56,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 21:50:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557714923] [2023-11-24 21:50:56,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:56,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 21:50:56,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:56,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 21:50:56,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-24 21:50:56,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2023-11-24 21:50:56,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 150 flow. Second operand has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:56,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:56,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2023-11-24 21:50:56,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:57,474 INFO L124 PetriNetUnfolderBase]: 339/747 cut-off events. [2023-11-24 21:50:57,474 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2023-11-24 21:50:57,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 747 events. 339/747 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3701 event pairs, 49 based on Foata normal form. 4/741 useless extension candidates. Maximal degree in co-relation 1655. Up to 312 conditions per place. [2023-11-24 21:50:57,479 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 36 selfloop transitions, 8 changer transitions 22/79 dead transitions. [2023-11-24 21:50:57,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 79 transitions, 379 flow [2023-11-24 21:50:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 21:50:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-24 21:50:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 215 transitions. [2023-11-24 21:50:57,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2023-11-24 21:50:57,483 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 215 transitions. [2023-11-24 21:50:57,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 215 transitions. [2023-11-24 21:50:57,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:57,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 215 transitions. [2023-11-24 21:50:57,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 23.88888888888889) internal successors, (215), 9 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:57,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:57,489 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:57,489 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 150 flow. Second operand 9 states and 215 transitions. [2023-11-24 21:50:57,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 79 transitions, 379 flow [2023-11-24 21:50:57,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 79 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-24 21:50:57,494 INFO L231 Difference]: Finished difference. Result has 70 places, 45 transitions, 198 flow [2023-11-24 21:50:57,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=70, PETRI_TRANSITIONS=45} [2023-11-24 21:50:57,496 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2023-11-24 21:50:57,496 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 198 flow [2023-11-24 21:50:57,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:57,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:57,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:57,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 21:50:57,497 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:57,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1102995772, now seen corresponding path program 3 times [2023-11-24 21:50:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:57,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637008257] [2023-11-24 21:50:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:57,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637008257] [2023-11-24 21:50:58,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637008257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:58,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:58,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:50:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666441104] [2023-11-24 21:50:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:58,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:50:58,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:50:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:50:58,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2023-11-24 21:50:58,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:58,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:58,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2023-11-24 21:50:58,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:50:58,752 INFO L124 PetriNetUnfolderBase]: 343/784 cut-off events. [2023-11-24 21:50:58,753 INFO L125 PetriNetUnfolderBase]: For 348/348 co-relation queries the response was YES. [2023-11-24 21:50:58,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 784 events. 343/784 cut-off events. For 348/348 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4151 event pairs, 161 based on Foata normal form. 4/766 useless extension candidates. Maximal degree in co-relation 1897. Up to 323 conditions per place. [2023-11-24 21:50:58,758 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 34 selfloop transitions, 7 changer transitions 12/65 dead transitions. [2023-11-24 21:50:58,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 370 flow [2023-11-24 21:50:58,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:50:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-24 21:50:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2023-11-24 21:50:58,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-11-24 21:50:58,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 153 transitions. [2023-11-24 21:50:58,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 153 transitions. [2023-11-24 21:50:58,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:50:58,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 153 transitions. [2023-11-24 21:50:58,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:58,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:58,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:58,764 INFO L175 Difference]: Start difference. First operand has 70 places, 45 transitions, 198 flow. Second operand 6 states and 153 transitions. [2023-11-24 21:50:58,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 370 flow [2023-11-24 21:50:58,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 356 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-24 21:50:58,771 INFO L231 Difference]: Finished difference. Result has 68 places, 39 transitions, 198 flow [2023-11-24 21:50:58,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=68, PETRI_TRANSITIONS=39} [2023-11-24 21:50:58,774 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 20 predicate places. [2023-11-24 21:50:58,774 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 39 transitions, 198 flow [2023-11-24 21:50:58,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:58,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:50:58,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:58,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 21:50:58,775 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-24 21:50:58,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:58,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1412049099, now seen corresponding path program 1 times [2023-11-24 21:50:58,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:50:58,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756313706] [2023-11-24 21:50:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:58,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:50:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:59,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:50:59,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756313706] [2023-11-24 21:50:59,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756313706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:59,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:59,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:50:59,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852281373] [2023-11-24 21:50:59,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:59,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:50:59,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:50:59,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:50:59,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:50:59,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2023-11-24 21:50:59,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 39 transitions, 198 flow. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:50:59,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:50:59,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2023-11-24 21:50:59,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:51:00,011 INFO L124 PetriNetUnfolderBase]: 114/269 cut-off events. [2023-11-24 21:51:00,012 INFO L125 PetriNetUnfolderBase]: For 317/317 co-relation queries the response was YES. [2023-11-24 21:51:00,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 269 events. 114/269 cut-off events. For 317/317 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 970 event pairs, 25 based on Foata normal form. 8/273 useless extension candidates. Maximal degree in co-relation 723. Up to 154 conditions per place. [2023-11-24 21:51:00,013 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2023-11-24 21:51:00,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 48 transitions, 306 flow [2023-11-24 21:51:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:51:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-24 21:51:00,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2023-11-24 21:51:00,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43492063492063493 [2023-11-24 21:51:00,016 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 137 transitions. [2023-11-24 21:51:00,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 137 transitions. [2023-11-24 21:51:00,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:51:00,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 137 transitions. [2023-11-24 21:51:00,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:51:00,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:51:00,018 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:51:00,019 INFO L175 Difference]: Start difference. First operand has 68 places, 39 transitions, 198 flow. Second operand 7 states and 137 transitions. [2023-11-24 21:51:00,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 48 transitions, 306 flow [2023-11-24 21:51:00,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 48 transitions, 247 flow, removed 5 selfloop flow, removed 13 redundant places. [2023-11-24 21:51:00,022 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2023-11-24 21:51:00,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2023-11-24 21:51:00,023 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2023-11-24 21:51:00,023 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2023-11-24 21:51:00,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:51:00,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-11-24 21:51:00,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2023-11-24 21:51:00,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-11-24 21:51:00,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-24 21:51:00,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-24 21:51:00,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-24 21:51:00,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2023-11-24 21:51:00,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 12 remaining) [2023-11-24 21:51:00,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-24 21:51:00,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-24 21:51:00,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-11-24 21:51:00,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-11-24 21:51:00,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-24 21:51:00,030 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:51:00,037 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 21:51:00,037 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:51:00,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:51:00 BasicIcfg [2023-11-24 21:51:00,046 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:51:00,047 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:51:00,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:51:00,048 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:51:00,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:50:43" (3/4) ... [2023-11-24 21:51:00,050 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 21:51:00,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-24 21:51:00,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-24 21:51:00,064 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2023-11-24 21:51:00,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-24 21:51:00,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 21:51:00,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 21:51:00,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 21:51:00,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/witness.yml [2023-11-24 21:51:00,185 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:51:00,185 INFO L158 Benchmark]: Toolchain (without parser) took 18851.60ms. Allocated memory was 172.0MB in the beginning and 400.6MB in the end (delta: 228.6MB). Free memory was 130.9MB in the beginning and 192.3MB in the end (delta: -61.5MB). Peak memory consumption was 169.1MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,186 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:51:00,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 971.96ms. Allocated memory is still 172.0MB. Free memory was 130.9MB in the beginning and 102.2MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.86ms. Allocated memory is still 172.0MB. Free memory was 102.2MB in the beginning and 98.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,187 INFO L158 Benchmark]: Boogie Preprocessor took 149.74ms. Allocated memory is still 172.0MB. Free memory was 98.6MB in the beginning and 93.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,187 INFO L158 Benchmark]: RCFGBuilder took 1300.02ms. Allocated memory is still 172.0MB. Free memory was 93.8MB in the beginning and 72.9MB in the end (delta: 20.9MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,188 INFO L158 Benchmark]: TraceAbstraction took 16154.74ms. Allocated memory was 172.0MB in the beginning and 400.6MB in the end (delta: 228.6MB). Free memory was 71.8MB in the beginning and 197.6MB in the end (delta: -125.8MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,188 INFO L158 Benchmark]: Witness Printer took 137.39ms. Allocated memory is still 400.6MB. Free memory was 197.6MB in the beginning and 192.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 21:51:00,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 971.96ms. Allocated memory is still 172.0MB. Free memory was 130.9MB in the beginning and 102.2MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.86ms. Allocated memory is still 172.0MB. Free memory was 102.2MB in the beginning and 98.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 149.74ms. Allocated memory is still 172.0MB. Free memory was 98.6MB in the beginning and 93.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1300.02ms. Allocated memory is still 172.0MB. Free memory was 93.8MB in the beginning and 72.9MB in the end (delta: 20.9MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16154.74ms. Allocated memory was 172.0MB in the beginning and 400.6MB in the end (delta: 228.6MB). Free memory was 71.8MB in the beginning and 197.6MB in the end (delta: -125.8MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. * Witness Printer took 137.39ms. Allocated memory is still 400.6MB. Free memory was 197.6MB in the beginning and 192.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -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: 874]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 65 locations, 12 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: 16.0s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 480 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1813 IncrementalHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 18 mSDtfsCounter, 1813 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=11, InterpolantAutomatonStates: 62, 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 1609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 21:51:00,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0178dd2-e647-4929-a2cf-74bad4ebedf5/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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