./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i --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_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/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_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/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_085c5640-7ddb-4b18-8eeb-69e0817137b1/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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:38,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:38,541 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:00:38,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:38,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:38,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:38,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:38,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:38,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:38,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:38,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:38,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:38,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:38,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:38,590 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:38,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:38,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:38,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:38,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:38,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:38,594 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:00:38,595 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:00:38,595 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:00:38,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:38,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:00:38,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:38,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:00:38,600 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:38,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:38,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:38,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:38,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:38,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:38,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:38,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:38,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:38,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:38,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:38,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:38,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:38,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:38,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:38,609 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_085c5640-7ddb-4b18-8eeb-69e0817137b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2024-10-31 22:00:38,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:38,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:38,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:38,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:38,956 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:38,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i Unable to find full path for "g++" [2024-10-31 22:00:41,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:41,307 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:41,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2024-10-31 22:00:41,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data/78c74e507/925de5dc7c7b4a03838b8e6b3b47aca1/FLAGc94efa605 [2024-10-31 22:00:41,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data/78c74e507/925de5dc7c7b4a03838b8e6b3b47aca1 [2024-10-31 22:00:41,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:41,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:41,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:41,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:41,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:41,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:41" (1/1) ... [2024-10-31 22:00:41,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62125012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:41, skipping insertion in model container [2024-10-31 22:00:41,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:41" (1/1) ... [2024-10-31 22:00:41,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:42,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:42,049 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:42,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:42,194 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:42,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42 WrapperNode [2024-10-31 22:00:42,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:42,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:42,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:42,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:42,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,280 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2024-10-31 22:00:42,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:42,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:42,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:42,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:42,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,304 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,336 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-10-31 22:00:42,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:42,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:42,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:42,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:42,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (1/1) ... [2024-10-31 22:00:42,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:42,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:42,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:42,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:00:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:00:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:00:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:00:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:00:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:00:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:00:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:00:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:00:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:00:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:00:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:42,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:42,456 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 22:00:42,716 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:42,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:43,331 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:00:43,331 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:44,703 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:44,704 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:00:44,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:44 BoogieIcfgContainer [2024-10-31 22:00:44,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:44,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:44,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:44,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:44,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:41" (1/3) ... [2024-10-31 22:00:44,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1db358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:44, skipping insertion in model container [2024-10-31 22:00:44,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:42" (2/3) ... [2024-10-31 22:00:44,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1db358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:44, skipping insertion in model container [2024-10-31 22:00:44,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:44" (3/3) ... [2024-10-31 22:00:44,728 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2024-10-31 22:00:44,758 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:44,758 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:00:44,758 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:00:44,870 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:00:44,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2024-10-31 22:00:44,995 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-10-31 22:00:44,996 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:00:44,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2024-10-31 22:00:44,999 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2024-10-31 22:00:45,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2024-10-31 22:00:45,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:45,027 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;@73b72d6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:45,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:00:45,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:45,066 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2024-10-31 22:00:45,066 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:00:45,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:45,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:45,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:45,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1079441311, now seen corresponding path program 1 times [2024-10-31 22:00:45,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:45,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013920537] [2024-10-31 22:00:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:46,363 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 22:00:46,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:46,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013920537] [2024-10-31 22:00:46,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013920537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:46,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:46,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679959112] [2024-10-31 22:00:46,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:46,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:46,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:46,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:46,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-31 22:00:46,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 22:00:46,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:46,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-31 22:00:46,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:46,851 INFO L124 PetriNetUnfolderBase]: 441/787 cut-off events. [2024-10-31 22:00:46,851 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-31 22:00:46,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 787 events. 441/787 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3703 event pairs, 173 based on Foata normal form. 20/778 useless extension candidates. Maximal degree in co-relation 1442. Up to 419 conditions per place. [2024-10-31 22:00:46,862 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-10-31 22:00:46,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2024-10-31 22:00:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-31 22:00:46,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-31 22:00:46,879 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2024-10-31 22:00:46,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2024-10-31 22:00:46,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:46,890 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2024-10-31 22:00:46,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2024-10-31 22:00:46,900 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-10-31 22:00:46,900 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2024-10-31 22:00:46,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 22:00:46,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:46,902 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] [2024-10-31 22:00:46,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:46,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:46,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:46,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1219930273, now seen corresponding path program 1 times [2024-10-31 22:00:46,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:46,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559310951] [2024-10-31 22:00:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:47,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:47,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559310951] [2024-10-31 22:00:47,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559310951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:47,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:47,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:47,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641439572] [2024-10-31 22:00:47,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:47,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:47,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:47,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:47,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:47,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-31 22:00:47,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 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) [2024-10-31 22:00:47,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:47,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-31 22:00:47,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:47,831 INFO L124 PetriNetUnfolderBase]: 742/1327 cut-off events. [2024-10-31 22:00:47,831 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-10-31 22:00:47,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 1327 events. 742/1327 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6781 event pairs, 300 based on Foata normal form. 29/1324 useless extension candidates. Maximal degree in co-relation 964. Up to 697 conditions per place. [2024-10-31 22:00:47,844 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2024-10-31 22:00:47,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2024-10-31 22:00:47,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-10-31 22:00:47,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-31 22:00:47,847 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2024-10-31 22:00:47,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2024-10-31 22:00:47,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:47,850 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2024-10-31 22:00:47,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-10-31 22:00:47,851 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-10-31 22:00:47,851 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2024-10-31 22:00:47,852 INFO L472 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) [2024-10-31 22:00:47,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:47,852 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] [2024-10-31 22:00:47,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:47,853 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:47,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash 737018549, now seen corresponding path program 1 times [2024-10-31 22:00:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:47,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990533039] [2024-10-31 22:00:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:48,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:48,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990533039] [2024-10-31 22:00:48,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990533039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:48,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:48,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:48,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174763783] [2024-10-31 22:00:48,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:48,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:48,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:48,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:48,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-31 22:00:48,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 22:00:48,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:48,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-31 22:00:48,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:48,761 INFO L124 PetriNetUnfolderBase]: 428/900 cut-off events. [2024-10-31 22:00:48,761 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-10-31 22:00:48,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 900 events. 428/900 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4334 event pairs, 182 based on Foata normal form. 64/958 useless extension candidates. Maximal degree in co-relation 629. Up to 373 conditions per place. [2024-10-31 22:00:48,768 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2024-10-31 22:00:48,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2024-10-31 22:00:48,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-31 22:00:48,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-10-31 22:00:48,773 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2024-10-31 22:00:48,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2024-10-31 22:00:48,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:48,775 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2024-10-31 22:00:48,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2024-10-31 22:00:48,778 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-10-31 22:00:48,779 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2024-10-31 22:00:48,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 22:00:48,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:48,780 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] [2024-10-31 22:00:48,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:48,780 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:48,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:48,781 INFO L85 PathProgramCache]: Analyzing trace with hash 419044627, now seen corresponding path program 2 times [2024-10-31 22:00:48,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:48,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123567697] [2024-10-31 22:00:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:48,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:49,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:49,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:49,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123567697] [2024-10-31 22:00:49,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123567697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:49,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136765478] [2024-10-31 22:00:49,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:49,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:49,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:49,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:49,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:00:49,907 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:00:49,907 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:49,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:00:49,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:00:49,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:49,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136765478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:49,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:49,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-10-31 22:00:49,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599516426] [2024-10-31 22:00:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:49,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:49,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:49,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:49,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-10-31 22:00:49,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 22:00:49,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:49,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-10-31 22:00:49,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:50,169 INFO L124 PetriNetUnfolderBase]: 465/947 cut-off events. [2024-10-31 22:00:50,170 INFO L125 PetriNetUnfolderBase]: For 311/311 co-relation queries the response was YES. [2024-10-31 22:00:50,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 947 events. 465/947 cut-off events. For 311/311 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4679 event pairs, 324 based on Foata normal form. 1/936 useless extension candidates. Maximal degree in co-relation 805. Up to 778 conditions per place. [2024-10-31 22:00:50,177 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 25 selfloop transitions, 1 changer transitions 3/38 dead transitions. [2024-10-31 22:00:50,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 164 flow [2024-10-31 22:00:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-31 22:00:50,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-10-31 22:00:50,181 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 3 states and 67 transitions. [2024-10-31 22:00:50,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 164 flow [2024-10-31 22:00:50,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:50,186 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 100 flow [2024-10-31 22:00:50,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-10-31 22:00:50,187 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-10-31 22:00:50,188 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 100 flow [2024-10-31 22:00:50,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 22:00:50,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:50,189 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] [2024-10-31 22:00:50,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:00:50,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:50,394 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:50,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:50,396 INFO L85 PathProgramCache]: Analyzing trace with hash -555787655, now seen corresponding path program 1 times [2024-10-31 22:00:50,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:50,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839272336] [2024-10-31 22:00:50,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:50,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:50,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:50,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839272336] [2024-10-31 22:00:50,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839272336] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:50,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33396478] [2024-10-31 22:00:50,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:50,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:50,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:50,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:50,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:00:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:51,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:00:51,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:51,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:51,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33396478] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:51,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:51,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-31 22:00:51,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576150111] [2024-10-31 22:00:51,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:51,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:51,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:51,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:51,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:51,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-10-31 22:00:51,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 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 22:00:51,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:51,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-10-31 22:00:51,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:52,040 INFO L124 PetriNetUnfolderBase]: 809/1573 cut-off events. [2024-10-31 22:00:52,040 INFO L125 PetriNetUnfolderBase]: For 300/300 co-relation queries the response was YES. [2024-10-31 22:00:52,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3512 conditions, 1573 events. 809/1573 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7784 event pairs, 128 based on Foata normal form. 60/1627 useless extension candidates. Maximal degree in co-relation 3503. Up to 396 conditions per place. [2024-10-31 22:00:52,049 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 72 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2024-10-31 22:00:52,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 85 transitions, 403 flow [2024-10-31 22:00:52,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:52,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:00:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-10-31 22:00:52,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-10-31 22:00:52,051 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 100 flow. Second operand 5 states and 145 transitions. [2024-10-31 22:00:52,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 85 transitions, 403 flow [2024-10-31 22:00:52,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 85 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:52,056 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 129 flow [2024-10-31 22:00:52,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2024-10-31 22:00:52,058 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2024-10-31 22:00:52,059 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 129 flow [2024-10-31 22:00:52,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 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 22:00:52,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:52,059 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:52,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:52,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:52,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:52,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:52,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1167078389, now seen corresponding path program 2 times [2024-10-31 22:00:52,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:52,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254489742] [2024-10-31 22:00:52,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:52,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:52,674 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 22:00:52,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:52,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254489742] [2024-10-31 22:00:52,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254489742] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:52,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263201378] [2024-10-31 22:00:52,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:52,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:52,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:52,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:52,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:00:53,365 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:53,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:53,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:00:53,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:00:53,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:00:53,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263201378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:53,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:00:53,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-31 22:00:53,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733498113] [2024-10-31 22:00:53,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:53,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:53,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:53,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:53,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:53,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-31 22:00:53,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:00:53,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:53,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-31 22:00:53,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:53,692 INFO L124 PetriNetUnfolderBase]: 747/1491 cut-off events. [2024-10-31 22:00:53,692 INFO L125 PetriNetUnfolderBase]: For 877/877 co-relation queries the response was YES. [2024-10-31 22:00:53,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3634 conditions, 1491 events. 747/1491 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6769 event pairs, 198 based on Foata normal form. 0/1412 useless extension candidates. Maximal degree in co-relation 3623. Up to 699 conditions per place. [2024-10-31 22:00:53,701 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 45 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2024-10-31 22:00:53,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 305 flow [2024-10-31 22:00:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:53,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:00:53,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-10-31 22:00:53,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2024-10-31 22:00:53,703 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 129 flow. Second operand 4 states and 97 transitions. [2024-10-31 22:00:53,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 305 flow [2024-10-31 22:00:53,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 294 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:53,707 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 148 flow [2024-10-31 22:00:53,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-10-31 22:00:53,708 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-10-31 22:00:53,708 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 148 flow [2024-10-31 22:00:53,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 22:00:53,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:53,708 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:53,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:00:53,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:53,913 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:53,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -42528821, now seen corresponding path program 3 times [2024-10-31 22:00:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:53,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885373110] [2024-10-31 22:00:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885373110] [2024-10-31 22:00:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885373110] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:54,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678902182] [2024-10-31 22:00:54,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:00:54,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:54,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:54,367 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:54,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:00:55,139 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-31 22:00:55,140 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:55,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:55,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:55,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:55,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678902182] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:55,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:55,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-10-31 22:00:55,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596695294] [2024-10-31 22:00:55,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:55,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:55,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:55,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:55,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:55,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-10-31 22:00:55,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 22:00:55,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:55,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-10-31 22:00:55,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:55,790 INFO L124 PetriNetUnfolderBase]: 1206/2409 cut-off events. [2024-10-31 22:00:55,791 INFO L125 PetriNetUnfolderBase]: For 1453/1453 co-relation queries the response was YES. [2024-10-31 22:00:55,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6074 conditions, 2409 events. 1206/2409 cut-off events. For 1453/1453 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 12874 event pairs, 162 based on Foata normal form. 115/2514 useless extension candidates. Maximal degree in co-relation 6059. Up to 831 conditions per place. [2024-10-31 22:00:55,809 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 73 selfloop transitions, 5 changer transitions 0/88 dead transitions. [2024-10-31 22:00:55,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 88 transitions, 506 flow [2024-10-31 22:00:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:00:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2024-10-31 22:00:55,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-10-31 22:00:55,814 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 148 flow. Second operand 5 states and 140 transitions. [2024-10-31 22:00:55,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 88 transitions, 506 flow [2024-10-31 22:00:55,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 88 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:55,821 INFO L231 Difference]: Finished difference. Result has 55 places, 41 transitions, 177 flow [2024-10-31 22:00:55,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2024-10-31 22:00:55,822 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2024-10-31 22:00:55,823 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 177 flow [2024-10-31 22:00:55,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 22:00:55,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:55,824 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:55,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:00:56,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:56,025 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:56,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:56,026 INFO L85 PathProgramCache]: Analyzing trace with hash -298713313, now seen corresponding path program 4 times [2024-10-31 22:00:56,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:56,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443029915] [2024-10-31 22:00:56,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:56,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:56,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:56,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443029915] [2024-10-31 22:00:56,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443029915] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:56,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959869124] [2024-10-31 22:00:56,696 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:00:56,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:56,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:56,703 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:56,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:00:57,489 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:00:57,490 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:57,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:00:57,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:00:57,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:00:57,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959869124] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:57,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:57,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2024-10-31 22:00:57,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132915338] [2024-10-31 22:00:57,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:57,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:57,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:57,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:57,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:57,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-31 22:00:57,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 22:00:57,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:57,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-31 22:00:57,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:57,917 INFO L124 PetriNetUnfolderBase]: 448/983 cut-off events. [2024-10-31 22:00:57,918 INFO L125 PetriNetUnfolderBase]: For 1117/1119 co-relation queries the response was YES. [2024-10-31 22:00:57,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 983 events. 448/983 cut-off events. For 1117/1119 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4018 event pairs, 123 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 2770. Up to 436 conditions per place. [2024-10-31 22:00:57,924 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 46 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-10-31 22:00:57,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 58 transitions, 356 flow [2024-10-31 22:00:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:00:57,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-10-31 22:00:57,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5523255813953488 [2024-10-31 22:00:57,926 INFO L175 Difference]: Start difference. First operand has 55 places, 41 transitions, 177 flow. Second operand 4 states and 95 transitions. [2024-10-31 22:00:57,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 58 transitions, 356 flow [2024-10-31 22:00:57,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 344 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:57,932 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 167 flow [2024-10-31 22:00:57,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-10-31 22:00:57,933 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2024-10-31 22:00:57,934 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 167 flow [2024-10-31 22:00:57,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 22:00:57,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:57,936 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:57,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:00:58,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:58,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:00:58,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1457335247, now seen corresponding path program 5 times [2024-10-31 22:00:58,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:58,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529835979] [2024-10-31 22:00:58,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:58,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:58,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:58,587 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:00:58,588 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-31 22:00:58,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-31 22:00:58,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-31 22:00:58,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-31 22:00:58,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:58,592 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1] [2024-10-31 22:00:58,680 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:00:58,680 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:00:58,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:00:58 BasicIcfg [2024-10-31 22:00:58,686 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:00:58,687 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:00:58,687 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:00:58,687 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:00:58,688 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:44" (3/4) ... [2024-10-31 22:00:58,695 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:00:58,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:00:58,697 INFO L158 Benchmark]: Toolchain (without parser) took 17343.88ms. Allocated memory was 148.9MB in the beginning and 662.7MB in the end (delta: 513.8MB). Free memory was 108.0MB in the beginning and 351.7MB in the end (delta: -243.6MB). Peak memory consumption was 268.5MB. Max. memory is 16.1GB. [2024-10-31 22:00:58,697 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:58,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.11ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 95.1MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:00:58,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.48ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:00:58,698 INFO L158 Benchmark]: Boogie Preprocessor took 90.16ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 87.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:00:58,698 INFO L158 Benchmark]: RCFGBuilder took 2333.47ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 87.8MB in the beginning and 68.0MB in the end (delta: 19.8MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. [2024-10-31 22:00:58,698 INFO L158 Benchmark]: TraceAbstraction took 13978.67ms. Allocated memory was 182.5MB in the beginning and 662.7MB in the end (delta: 480.2MB). Free memory was 66.9MB in the beginning and 351.7MB in the end (delta: -284.7MB). Peak memory consumption was 195.5MB. Max. memory is 16.1GB. [2024-10-31 22:00:58,699 INFO L158 Benchmark]: Witness Printer took 9.41ms. Allocated memory is still 662.7MB. Free memory is still 351.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:00:58,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.11ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 95.1MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.48ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.16ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 87.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2333.47ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 87.8MB in the beginning and 68.0MB in the end (delta: 19.8MB). Peak memory consumption was 88.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13978.67ms. Allocated memory was 182.5MB in the beginning and 662.7MB in the end (delta: 480.2MB). Free memory was 66.9MB in the beginning and 351.7MB in the end (delta: -284.7MB). Peak memory consumption was 195.5MB. Max. memory is 16.1GB. * Witness Printer took 9.41ms. Allocated memory is still 662.7MB. Free memory is still 351.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L870] 0 int num; [L871] 0 unsigned long total; [L872] 0 int flag; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L873] 0 pthread_mutex_t m; [L874] 0 pthread_cond_t empty, full; [L907] 0 pthread_t t1, t2; [L908] 0 num = 0 [L909] 0 total = 0 [L913] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, flag=0, m={3:0}, num=0, t1=-2, total=0] [L876] 1 int i; [L877] 1 i = 0 VAL [\old(arg)={0:0}, arg={0:0}, flag=0, i=0, m={3:0}, num=0, total=0] [L878] COND TRUE 1 i < 3 VAL [\old(arg)={0:0}, arg={0:0}, flag=0, i=0, m={3:0}, num=0, total=0] [L914] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, flag=0, i=0, m={3:0}, num=0, t1=-2, t2=-1, total=0] [L890] 2 int j; [L891] 2 j = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=0, j=0, m={3:0}, num=0, total=0] [L880] COND FALSE 1 !(num > 0) [L882] 1 num++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=0, j=0, m={3:0}, num=1, total=0] [L885] 1 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=0, m={3:0}, num=1, total=0] [L892] COND TRUE 2 j < 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=0, m={3:0}, num=1, total=0] [L894] COND FALSE 2 !(num == 0) [L896] 2 total = total + j [L897] 2 num-- VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=0, m={3:0}, num=0, total=0] [L878] COND TRUE 1 i < 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=0, m={3:0}, num=0, total=0] [L900] 2 j++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=1, m={3:0}, num=0, total=0] [L880] COND FALSE 1 !(num > 0) [L882] 1 num++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=1, m={3:0}, num=1, total=0] [L892] COND TRUE 2 j < 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=1, j=1, m={3:0}, num=1, total=0] [L885] 1 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=2, j=1, m={3:0}, num=1, total=0] [L878] COND TRUE 1 i < 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=2, j=1, m={3:0}, num=1, total=0] [L894] COND FALSE 2 !(num == 0) [L896] 2 total = total + j [L897] 2 num-- VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=2, j=1, m={3:0}, num=0, total=1] [L900] 2 j++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=2, j=2, m={3:0}, num=0, total=1] [L880] COND FALSE 1 !(num > 0) [L882] 1 num++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=2, j=2, m={3:0}, num=1, total=1] [L892] COND TRUE 2 j < 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=2, j=2, m={3:0}, num=1, total=1] [L885] 1 i++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, flag=0, i=3, j=2, m={3:0}, num=1, total=1] [L878] COND FALSE 1 !(i < 3) [L887] 1 return ((void *)0); [L915] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=0, i=3, j=2, m={3:0}, num=1, t1=-2, t2=-1, total=1] [L894] COND FALSE 2 !(num == 0) [L896] 2 total = total + j [L897] 2 num-- VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=0, i=3, j=2, m={3:0}, num=0, total=3] [L900] 2 j++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=0, i=3, j=3, m={3:0}, num=0, total=3] [L892] COND FALSE 2 !(j < 3) [L902] 2 total = total + j [L903] 2 flag = 1 [L904] 2 return ((void *)0); [L916] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=1, i=3, j=3, m={3:0}, num=0, t1=-2, t2=-1, total=6] [L917] COND TRUE 0 \read(flag) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=1, i=3, j=3, m={3:0}, num=0, t1=-2, t2=-1, total=6] [L918] COND FALSE 0 !(total != ((3 * (3 + 1)) / 2)) [L919] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=1, i=3, j=3, m={3:0}, num=0, total=6] [L18] 0 __assert_fail ("0", "", 0, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, flag=1, i=3, j=3, m={3:0}, num=0, total=6] - UnprovableResult [Line: 906]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 913]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 914]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 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: 13.7s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 582 IncrementalHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 582 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 335 GetRequests, 308 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred in iteration=7, InterpolantAutomatonStates: 30, 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: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 487 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 1217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2150 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 192/270 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:00:58,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/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_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:01,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:01,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 22:01:01,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:01,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:01,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:01,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:01,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:01,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:01,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:01,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:01:01,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:01:01,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:01,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:01,454 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:01,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:01,455 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:01:01,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:01,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:01:01,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:01,459 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:01:01,460 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:01:01,463 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:01:01,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:01:01,463 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:01:01,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:01:01,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:01,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:01:01,465 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:01,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:01:01,467 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:01,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:01,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:01,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:01:01,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:01:01,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:01,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:01,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:01:01,471 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:01:01,472 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:01:01,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:01:01,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:01:01,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:01:01,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:01:01,484 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:01:01,485 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_085c5640-7ddb-4b18-8eeb-69e0817137b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2024-10-31 22:01:01,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:01,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:01,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:01,977 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:01,977 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:01,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i Unable to find full path for "g++" [2024-10-31 22:01:04,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:04,424 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:04,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2024-10-31 22:01:04,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data/3a1f7d438/81b0aa47ce6b470db1ef23a41def7eba/FLAG120854d04 [2024-10-31 22:01:04,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/data/3a1f7d438/81b0aa47ce6b470db1ef23a41def7eba [2024-10-31 22:01:04,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:04,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:04,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:04,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:04,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:04,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:04" (1/1) ... [2024-10-31 22:01:04,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5993de2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:04, skipping insertion in model container [2024-10-31 22:01:04,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:04" (1/1) ... [2024-10-31 22:01:04,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:05,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:05,257 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:05,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:05,427 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:05,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05 WrapperNode [2024-10-31 22:01:05,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:05,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:05,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:05,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:05,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,472 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,511 INFO L138 Inliner]: procedures = 250, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 263 [2024-10-31 22:01:05,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:05,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:05,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:05,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:05,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,535 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,563 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-10-31 22:01:05,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:05,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:05,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:05,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:05,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (1/1) ... [2024-10-31 22:01:05,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:01:05,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:01:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 22:01:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-10-31 22:01:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-10-31 22:01:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-10-31 22:01:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:01:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:01:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:01:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:01:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:01:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:01:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:01:05,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:05,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:05,674 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 22:01:05,904 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:05,907 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:06,514 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:01:06,514 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:08,226 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:08,227 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:01:08,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:08 BoogieIcfgContainer [2024-10-31 22:01:08,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:08,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:01:08,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:01:08,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:01:08,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:01:04" (1/3) ... [2024-10-31 22:01:08,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f2f903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:08, skipping insertion in model container [2024-10-31 22:01:08,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:05" (2/3) ... [2024-10-31 22:01:08,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f2f903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:01:08, skipping insertion in model container [2024-10-31 22:01:08,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:08" (3/3) ... [2024-10-31 22:01:08,237 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2024-10-31 22:01:08,258 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:01:08,258 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:01:08,259 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:01:08,334 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:01:08,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2024-10-31 22:01:08,433 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-10-31 22:01:08,433 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:01:08,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2024-10-31 22:01:08,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2024-10-31 22:01:08,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2024-10-31 22:01:08,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:01:08,457 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;@41523102, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:01:08,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:01:08,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:01:08,494 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2024-10-31 22:01:08,495 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:01:08,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:08,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:01:08,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-31 22:01:08,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1752607071, now seen corresponding path program 1 times [2024-10-31 22:01:08,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:01:08,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146113667] [2024-10-31 22:01:08,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:08,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:01:08,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:01:08,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:01:08,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c5640-7ddb-4b18-8eeb-69e0817137b1/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process