./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-easy6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU --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 69f73d75edf25d106d657bdc186907312ee3ef2bf4e5da547c0ac3641991b71d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:32,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:32,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:06:32,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:32,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:32,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:32,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:32,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:32,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:32,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:32,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:32,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:32,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:32,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:32,131 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:32,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:32,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:32,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:32,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:32,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:32,133 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:06:32,134 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:06:32,134 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:06:32,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:32,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:06:32,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:32,136 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:32,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:32,137 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:32,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:32,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:32,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:32,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:32,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:32,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:32,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:32,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:32,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:32,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:32,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:32,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:32,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:32,144 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_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f73d75edf25d106d657bdc186907312ee3ef2bf4e5da547c0ac3641991b71d [2024-10-31 22:06:32,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:32,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:32,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:32,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:32,496 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:32,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/test-easy6.wvr.c Unable to find full path for "g++" [2024-10-31 22:06:34,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:35,013 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:35,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-10-31 22:06:35,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/data/243f7e8ea/280aab5e611b45b7b9020cdcfcab5327/FLAGebdc08fe8 [2024-10-31 22:06:35,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/data/243f7e8ea/280aab5e611b45b7b9020cdcfcab5327 [2024-10-31 22:06:35,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:35,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:35,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:35,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:35,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:35,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b4786c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35, skipping insertion in model container [2024-10-31 22:06:35,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:35,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:35,367 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:35,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:35,421 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:35,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35 WrapperNode [2024-10-31 22:06:35,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:35,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:35,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:35,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:35,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,466 INFO L138 Inliner]: procedures = 20, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-10-31 22:06:35,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:35,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:35,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:35,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:35,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,502 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:06:35,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:35,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:35,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:35,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:35,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (1/1) ... [2024-10-31 22:06:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:35,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:35,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:06:35,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:06:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:06:35,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:06:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:35,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:35,606 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:35,706 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:35,708 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:35,909 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:35,910 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:36,131 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:36,132 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:06:36,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:36 BoogieIcfgContainer [2024-10-31 22:06:36,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:36,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:36,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:36,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:36,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:35" (1/3) ... [2024-10-31 22:06:36,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a02d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:36, skipping insertion in model container [2024-10-31 22:06:36,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:35" (2/3) ... [2024-10-31 22:06:36,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a02d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:36, skipping insertion in model container [2024-10-31 22:06:36,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:36" (3/3) ... [2024-10-31 22:06:36,167 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-10-31 22:06:36,192 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:36,192 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:06:36,193 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:36,250 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:06:36,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 36 transitions, 86 flow [2024-10-31 22:06:36,374 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-31 22:06:36,375 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:06:36,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 34 events. 0/34 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:06:36,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 36 transitions, 86 flow [2024-10-31 22:06:36,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 33 transitions, 78 flow [2024-10-31 22:06:36,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:36,405 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@12ce8d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:36,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:06:36,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:36,430 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-31 22:06:36,430 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:06:36,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:36,432 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:36,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:36,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1088388566, now seen corresponding path program 1 times [2024-10-31 22:06:36,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:36,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288755569] [2024-10-31 22:06:36,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:36,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:37,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:37,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288755569] [2024-10-31 22:06:37,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288755569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:37,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:37,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:37,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176321752] [2024-10-31 22:06:37,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:37,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:37,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:37,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:37,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:37,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 36 [2024-10-31 22:06:37,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:37,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 36 [2024-10-31 22:06:37,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:37,666 INFO L124 PetriNetUnfolderBase]: 124/315 cut-off events. [2024-10-31 22:06:37,666 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-10-31 22:06:37,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 315 events. 124/315 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1464 event pairs, 39 based on Foata normal form. 4/309 useless extension candidates. Maximal degree in co-relation 521. Up to 80 conditions per place. [2024-10-31 22:06:37,673 INFO L140 encePairwiseOnDemand]: 29/36 looper letters, 31 selfloop transitions, 6 changer transitions 14/64 dead transitions. [2024-10-31 22:06:37,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 64 transitions, 266 flow [2024-10-31 22:06:37,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:37,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2024-10-31 22:06:37,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6626984126984127 [2024-10-31 22:06:37,693 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 78 flow. Second operand 7 states and 167 transitions. [2024-10-31 22:06:37,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 64 transitions, 266 flow [2024-10-31 22:06:37,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:06:37,703 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 101 flow [2024-10-31 22:06:37,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-10-31 22:06:37,710 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2024-10-31 22:06:37,710 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 101 flow [2024-10-31 22:06:37,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:37,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:37,713 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:37,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:37,713 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:37,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1860149302, now seen corresponding path program 2 times [2024-10-31 22:06:37,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542927219] [2024-10-31 22:06:37,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:38,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:38,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542927219] [2024-10-31 22:06:38,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542927219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:38,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:38,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:38,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804314094] [2024-10-31 22:06:38,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:38,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:38,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:38,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:38,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:38,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 36 [2024-10-31 22:06:38,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 101 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:38,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 36 [2024-10-31 22:06:38,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:38,583 INFO L124 PetriNetUnfolderBase]: 307/733 cut-off events. [2024-10-31 22:06:38,584 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-10-31 22:06:38,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 733 events. 307/733 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3997 event pairs, 51 based on Foata normal form. 6/728 useless extension candidates. Maximal degree in co-relation 1424. Up to 143 conditions per place. [2024-10-31 22:06:38,597 INFO L140 encePairwiseOnDemand]: 28/36 looper letters, 44 selfloop transitions, 11 changer transitions 13/83 dead transitions. [2024-10-31 22:06:38,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 340 flow [2024-10-31 22:06:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:06:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:06:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 195 transitions. [2024-10-31 22:06:38,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2024-10-31 22:06:38,601 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 101 flow. Second operand 9 states and 195 transitions. [2024-10-31 22:06:38,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 340 flow [2024-10-31 22:06:38,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 83 transitions, 336 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:38,611 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 173 flow [2024-10-31 22:06:38,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2024-10-31 22:06:38,613 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 14 predicate places. [2024-10-31 22:06:38,613 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 173 flow [2024-10-31 22:06:38,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:38,614 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:38,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:38,615 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:38,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:38,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2014650894, now seen corresponding path program 3 times [2024-10-31 22:06:38,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:38,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151029136] [2024-10-31 22:06:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:38,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:38,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151029136] [2024-10-31 22:06:38,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151029136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:38,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:38,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:38,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185127371] [2024-10-31 22:06:38,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:38,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:38,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:38,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:38,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:38,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 36 [2024-10-31 22:06:38,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:38,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 36 [2024-10-31 22:06:38,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:38,907 INFO L124 PetriNetUnfolderBase]: 164/532 cut-off events. [2024-10-31 22:06:38,908 INFO L125 PetriNetUnfolderBase]: For 221/225 co-relation queries the response was YES. [2024-10-31 22:06:38,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 532 events. 164/532 cut-off events. For 221/225 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3094 event pairs, 133 based on Foata normal form. 9/518 useless extension candidates. Maximal degree in co-relation 1018. Up to 300 conditions per place. [2024-10-31 22:06:38,914 INFO L140 encePairwiseOnDemand]: 33/36 looper letters, 19 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-10-31 22:06:38,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 228 flow [2024-10-31 22:06:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-10-31 22:06:38,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2024-10-31 22:06:38,916 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 173 flow. Second operand 3 states and 76 transitions. [2024-10-31 22:06:38,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 228 flow [2024-10-31 22:06:38,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 226 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:38,923 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 179 flow [2024-10-31 22:06:38,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2024-10-31 22:06:38,924 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 14 predicate places. [2024-10-31 22:06:38,925 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 179 flow [2024-10-31 22:06:38,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:38,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:38,926 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:38,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:38,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:38,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:38,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1720452954, now seen corresponding path program 4 times [2024-10-31 22:06:38,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:38,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142176151] [2024-10-31 22:06:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:38,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:39,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:39,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142176151] [2024-10-31 22:06:39,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142176151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:39,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:39,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:39,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531636587] [2024-10-31 22:06:39,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:39,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:39,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:39,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:39,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:39,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 36 [2024-10-31 22:06:39,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:39,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:39,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 36 [2024-10-31 22:06:39,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:39,458 INFO L124 PetriNetUnfolderBase]: 247/599 cut-off events. [2024-10-31 22:06:39,459 INFO L125 PetriNetUnfolderBase]: For 277/284 co-relation queries the response was YES. [2024-10-31 22:06:39,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 599 events. 247/599 cut-off events. For 277/284 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3214 event pairs, 90 based on Foata normal form. 8/586 useless extension candidates. Maximal degree in co-relation 701. Up to 159 conditions per place. [2024-10-31 22:06:39,464 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 22 selfloop transitions, 5 changer transitions 15/63 dead transitions. [2024-10-31 22:06:39,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 312 flow [2024-10-31 22:06:39,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:39,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:39,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2024-10-31 22:06:39,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6150793650793651 [2024-10-31 22:06:39,467 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 179 flow. Second operand 7 states and 155 transitions. [2024-10-31 22:06:39,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 312 flow [2024-10-31 22:06:39,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:39,474 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 178 flow [2024-10-31 22:06:39,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2024-10-31 22:06:39,475 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 19 predicate places. [2024-10-31 22:06:39,476 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 178 flow [2024-10-31 22:06:39,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:39,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:39,477 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:39,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:39,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:39,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1840203536, now seen corresponding path program 5 times [2024-10-31 22:06:39,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:39,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357302812] [2024-10-31 22:06:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:39,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:39,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:39,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357302812] [2024-10-31 22:06:39,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357302812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:39,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:39,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:39,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202876094] [2024-10-31 22:06:39,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:39,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:39,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:39,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:39,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:39,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 36 [2024-10-31 22:06:39,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:39,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:39,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 36 [2024-10-31 22:06:39,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:40,072 INFO L124 PetriNetUnfolderBase]: 264/658 cut-off events. [2024-10-31 22:06:40,073 INFO L125 PetriNetUnfolderBase]: For 526/547 co-relation queries the response was YES. [2024-10-31 22:06:40,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 658 events. 264/658 cut-off events. For 526/547 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3502 event pairs, 74 based on Foata normal form. 27/670 useless extension candidates. Maximal degree in co-relation 1665. Up to 196 conditions per place. [2024-10-31 22:06:40,080 INFO L140 encePairwiseOnDemand]: 29/36 looper letters, 42 selfloop transitions, 8 changer transitions 13/76 dead transitions. [2024-10-31 22:06:40,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 76 transitions, 404 flow [2024-10-31 22:06:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-10-31 22:06:40,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-31 22:06:40,083 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 178 flow. Second operand 8 states and 176 transitions. [2024-10-31 22:06:40,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 76 transitions, 404 flow [2024-10-31 22:06:40,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 76 transitions, 387 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-31 22:06:40,092 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 171 flow [2024-10-31 22:06:40,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=171, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2024-10-31 22:06:40,093 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 19 predicate places. [2024-10-31 22:06:40,093 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 171 flow [2024-10-31 22:06:40,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:40,095 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:40,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:40,096 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:40,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:40,097 INFO L85 PathProgramCache]: Analyzing trace with hash -671397420, now seen corresponding path program 6 times [2024-10-31 22:06:40,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:40,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553962289] [2024-10-31 22:06:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:40,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:40,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:40,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553962289] [2024-10-31 22:06:40,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553962289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:40,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:40,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:40,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596129932] [2024-10-31 22:06:40,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:40,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:40,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:40,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:40,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:40,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 36 [2024-10-31 22:06:40,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 171 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:40,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 36 [2024-10-31 22:06:40,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:40,648 INFO L124 PetriNetUnfolderBase]: 139/348 cut-off events. [2024-10-31 22:06:40,649 INFO L125 PetriNetUnfolderBase]: For 326/326 co-relation queries the response was YES. [2024-10-31 22:06:40,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 348 events. 139/348 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1528 event pairs, 55 based on Foata normal form. 6/343 useless extension candidates. Maximal degree in co-relation 484. Up to 196 conditions per place. [2024-10-31 22:06:40,651 INFO L140 encePairwiseOnDemand]: 29/36 looper letters, 21 selfloop transitions, 3 changer transitions 11/48 dead transitions. [2024-10-31 22:06:40,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 48 transitions, 256 flow [2024-10-31 22:06:40,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:06:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-10-31 22:06:40,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5888888888888889 [2024-10-31 22:06:40,654 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 171 flow. Second operand 5 states and 106 transitions. [2024-10-31 22:06:40,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 48 transitions, 256 flow [2024-10-31 22:06:40,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 234 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-10-31 22:06:40,659 INFO L231 Difference]: Finished difference. Result has 54 places, 33 transitions, 121 flow [2024-10-31 22:06:40,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=54, PETRI_TRANSITIONS=33} [2024-10-31 22:06:40,661 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 14 predicate places. [2024-10-31 22:06:40,661 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 33 transitions, 121 flow [2024-10-31 22:06:40,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:40,662 INFO L204 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, 1, 1, 1] [2024-10-31 22:06:40,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:40,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:06:40,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:40,664 INFO L85 PathProgramCache]: Analyzing trace with hash -729564402, now seen corresponding path program 7 times [2024-10-31 22:06:40,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:40,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182447245] [2024-10-31 22:06:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:40,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:40,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:40,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182447245] [2024-10-31 22:06:40,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182447245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:40,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:40,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:40,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122002914] [2024-10-31 22:06:40,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:40,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:40,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:40,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:40,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:40,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 36 [2024-10-31 22:06:40,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 33 transitions, 121 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:40,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 36 [2024-10-31 22:06:40,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:40,951 INFO L124 PetriNetUnfolderBase]: 41/106 cut-off events. [2024-10-31 22:06:40,951 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-31 22:06:40,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 106 events. 41/106 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 293 event pairs, 5 based on Foata normal form. 6/109 useless extension candidates. Maximal degree in co-relation 280. Up to 28 conditions per place. [2024-10-31 22:06:40,952 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-10-31 22:06:40,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 34 transitions, 172 flow [2024-10-31 22:06:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:40,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:40,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 125 transitions. [2024-10-31 22:06:40,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49603174603174605 [2024-10-31 22:06:40,955 INFO L175 Difference]: Start difference. First operand has 54 places, 33 transitions, 121 flow. Second operand 7 states and 125 transitions. [2024-10-31 22:06:40,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 34 transitions, 172 flow [2024-10-31 22:06:40,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 34 transitions, 137 flow, removed 11 selfloop flow, removed 10 redundant places. [2024-10-31 22:06:40,957 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2024-10-31 22:06:40,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2024-10-31 22:06:40,958 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-10-31 22:06:40,958 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2024-10-31 22:06:40,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:40,963 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-31 22:06:40,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-31 22:06:40,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-31 22:06:40,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-31 22:06:40,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:06:40,968 INFO L407 BasicCegarLoop]: Path program histogram: [7] [2024-10-31 22:06:40,973 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:06:40,973 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:06:40,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:06:40 BasicIcfg [2024-10-31 22:06:40,981 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:06:40,982 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:06:40,982 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:06:40,983 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:06:40,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:36" (3/4) ... [2024-10-31 22:06:40,987 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:06:40,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-31 22:06:40,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-31 22:06:40,998 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-10-31 22:06:41,000 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-31 22:06:41,000 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-31 22:06:41,000 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 22:06:41,107 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:06:41,108 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:06:41,108 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:06:41,109 INFO L158 Benchmark]: Toolchain (without parser) took 6065.13ms. Allocated memory was 121.6MB in the beginning and 155.2MB in the end (delta: 33.6MB). Free memory was 85.2MB in the beginning and 71.2MB in the end (delta: 13.9MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,110 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:06:41,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.71ms. Allocated memory is still 121.6MB. Free memory was 84.8MB in the beginning and 72.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.81ms. Allocated memory is still 121.6MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,112 INFO L158 Benchmark]: Boogie Preprocessor took 55.33ms. Allocated memory is still 121.6MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,112 INFO L158 Benchmark]: RCFGBuilder took 607.82ms. Allocated memory is still 121.6MB. Free memory was 68.4MB in the beginning and 89.8MB in the end (delta: -21.3MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,113 INFO L158 Benchmark]: TraceAbstraction took 4829.74ms. Allocated memory is still 155.2MB. Free memory was 125.0MB in the beginning and 75.4MB in the end (delta: 49.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,114 INFO L158 Benchmark]: Witness Printer took 126.41ms. Allocated memory is still 155.2MB. Free memory was 75.4MB in the beginning and 71.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:06:41,117 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.71ms. Allocated memory is still 121.6MB. Free memory was 84.8MB in the beginning and 72.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.81ms. Allocated memory is still 121.6MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.33ms. Allocated memory is still 121.6MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.82ms. Allocated memory is still 121.6MB. Free memory was 68.4MB in the beginning and 89.8MB in the end (delta: -21.3MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4829.74ms. Allocated memory is still 155.2MB. Free memory was 125.0MB in the beginning and 75.4MB in the end (delta: 49.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Witness Printer took 126.41ms. Allocated memory is still 155.2MB. Free memory was 75.4MB in the beginning and 71.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 106]: 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, 63 locations, 4 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: 4.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 354 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 848 IncrementalHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 32 mSDtfsCounter, 848 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=3, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 706 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:06:41,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56f45464-a893-422d-b9c8-ef56f59e3c19/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE