./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB --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 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:13:53,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:13:53,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:13:53,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:13:53,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:13:53,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:13:53,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:13:53,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:13:53,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:13:53,391 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:13:53,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:13:53,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:13:53,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:13:53,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:13:53,393 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:13:53,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:13:53,394 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:13:53,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:13:53,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:13:53,395 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:13:53,396 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:13:53,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:13:53,396 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:13:53,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:53,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:53,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:53,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:53,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:13:53,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:13:53,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:13:53,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:13:53,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:53,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:13:53,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:13:53,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:13:53,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:13:53,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:13:53,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:13:53,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:13:53,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:13:53,399 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2024-11-28 03:13:53,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:13:53,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:13:53,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:13:53,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:13:53,745 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:13:53,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-28 03:13:56,769 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/data/80901e625/1345fda6bf72402998a991d11ca11221/FLAG675829873 [2024-11-28 03:13:57,198 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:13:57,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-28 03:13:57,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/data/80901e625/1345fda6bf72402998a991d11ca11221/FLAG675829873 [2024-11-28 03:13:57,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/data/80901e625/1345fda6bf72402998a991d11ca11221 [2024-11-28 03:13:57,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:13:57,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:13:57,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:57,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:13:57,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:13:57,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:57" (1/1) ... [2024-11-28 03:13:57,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3137b067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:57, skipping insertion in model container [2024-11-28 03:13:57,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:57" (1/1) ... [2024-11-28 03:13:57,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:13:57,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:58,010 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:13:58,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:13:58,167 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:13:58,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58 WrapperNode [2024-11-28 03:13:58,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:13:58,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:58,169 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:13:58,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:13:58,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,209 INFO L138 Inliner]: procedures = 364, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-28 03:13:58,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:13:58,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:13:58,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:13:58,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:13:58,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,220 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,239 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-28 03:13:58,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,248 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:13:58,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:13:58,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:13:58,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:13:58,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (1/1) ... [2024-11-28 03:13:58,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:13:58,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:58,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:13:58,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:13:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:13:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:13:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:13:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2024-11-28 03:13:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2024-11-28 03:13:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:13:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:13:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:13:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:13:58,334 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:13:58,458 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:13:58,460 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:13:58,692 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:13:58,692 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:13:58,893 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:13:58,894 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:13:58,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:58 BoogieIcfgContainer [2024-11-28 03:13:58,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:13:58,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:13:58,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:13:58,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:13:58,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:57" (1/3) ... [2024-11-28 03:13:58,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5af00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:58, skipping insertion in model container [2024-11-28 03:13:58,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:58" (2/3) ... [2024-11-28 03:13:58,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5af00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:58, skipping insertion in model container [2024-11-28 03:13:58,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:58" (3/3) ... [2024-11-28 03:13:58,909 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2024-11-28 03:13:58,925 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:13:58,926 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-1.i that has 2 procedures, 26 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 03:13:58,926 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:13:58,974 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 03:13:59,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 29 transitions, 65 flow [2024-11-28 03:13:59,055 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2024-11-28 03:13:59,057 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:13:59,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 28 events. 4/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 14. Up to 2 conditions per place. [2024-11-28 03:13:59,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 29 transitions, 65 flow [2024-11-28 03:13:59,066 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 27 transitions, 60 flow [2024-11-28 03:13:59,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:13:59,101 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;@7b577daf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:13:59,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-28 03:13:59,119 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:13:59,119 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2024-11-28 03:13:59,119 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:13:59,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:59,120 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:59,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:13:59,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:59,129 INFO L85 PathProgramCache]: Analyzing trace with hash 20914743, now seen corresponding path program 1 times [2024-11-28 03:13:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:59,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409511866] [2024-11-28 03:13:59,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:59,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:13:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409511866] [2024-11-28 03:13:59,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409511866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:59,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:59,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:59,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732962968] [2024-11-28 03:13:59,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:59,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:59,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:59,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:59,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:59,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 29 [2024-11-28 03:13:59,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-28 03:13:59,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:59,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 29 [2024-11-28 03:13:59,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:13:59,597 INFO L124 PetriNetUnfolderBase]: 61/135 cut-off events. [2024-11-28 03:13:59,598 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:13:59,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 135 events. 61/135 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 398 event pairs, 27 based on Foata normal form. 9/143 useless extension candidates. Maximal degree in co-relation 247. Up to 78 conditions per place. [2024-11-28 03:13:59,602 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 2 changer transitions 1/32 dead transitions. [2024-11-28 03:13:59,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 32 transitions, 124 flow [2024-11-28 03:13:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:13:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-28 03:13:59,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-11-28 03:13:59,625 INFO L175 Difference]: Start difference. First operand has 27 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2024-11-28 03:13:59,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 32 transitions, 124 flow [2024-11-28 03:13:59,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 32 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:13:59,637 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 56 flow [2024-11-28 03:13:59,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2024-11-28 03:13:59,646 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2024-11-28 03:13:59,646 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 56 flow [2024-11-28 03:13:59,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-28 03:13:59,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:13:59,646 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:59,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:13:59,647 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:13:59,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash 581635548, now seen corresponding path program 1 times [2024-11-28 03:13:59,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:13:59,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524504498] [2024-11-28 03:13:59,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:59,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:13:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:13:59,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:59,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524504498] [2024-11-28 03:13:59,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524504498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:59,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:59,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:13:59,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139034509] [2024-11-28 03:13:59,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:59,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:59,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:59,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:59,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:13:59,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 29 [2024-11-28 03:13:59,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-28 03:13:59,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:13:59,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 29 [2024-11-28 03:13:59,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:00,011 INFO L124 PetriNetUnfolderBase]: 101/222 cut-off events. [2024-11-28 03:14:00,012 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-28 03:14:00,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 222 events. 101/222 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 787 event pairs, 53 based on Foata normal form. 10/231 useless extension candidates. Maximal degree in co-relation 123. Up to 126 conditions per place. [2024-11-28 03:14:00,016 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 27 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2024-11-28 03:14:00,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 146 flow [2024-11-28 03:14:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-11-28 03:14:00,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5632183908045977 [2024-11-28 03:14:00,020 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 56 flow. Second operand 3 states and 49 transitions. [2024-11-28 03:14:00,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 146 flow [2024-11-28 03:14:00,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:00,023 INFO L231 Difference]: Finished difference. Result has 26 places, 23 transitions, 66 flow [2024-11-28 03:14:00,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=26, PETRI_TRANSITIONS=23} [2024-11-28 03:14:00,025 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2024-11-28 03:14:00,025 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 66 flow [2024-11-28 03:14:00,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-28 03:14:00,026 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:00,026 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:00,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:14:00,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:00,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:00,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1147940251, now seen corresponding path program 1 times [2024-11-28 03:14:00,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:00,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643748411] [2024-11-28 03:14:00,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:00,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:00,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643748411] [2024-11-28 03:14:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643748411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:14:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615961218] [2024-11-28 03:14:00,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:00,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:00,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:00,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:14:00,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 29 [2024-11-28 03:14:00,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-28 03:14:00,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:00,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 29 [2024-11-28 03:14:00,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:00,380 INFO L124 PetriNetUnfolderBase]: 69/171 cut-off events. [2024-11-28 03:14:00,381 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-28 03:14:00,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 171 events. 69/171 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 532 event pairs, 25 based on Foata normal form. 16/186 useless extension candidates. Maximal degree in co-relation 134. Up to 80 conditions per place. [2024-11-28 03:14:00,383 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 23 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2024-11-28 03:14:00,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 31 transitions, 154 flow [2024-11-28 03:14:00,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:14:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-11-28 03:14:00,384 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-11-28 03:14:00,384 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 66 flow. Second operand 3 states and 46 transitions. [2024-11-28 03:14:00,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 31 transitions, 154 flow [2024-11-28 03:14:00,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:00,386 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 72 flow [2024-11-28 03:14:00,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2024-11-28 03:14:00,387 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-11-28 03:14:00,387 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 72 flow [2024-11-28 03:14:00,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-28 03:14:00,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:00,388 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:00,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:14:00,388 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:00,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash -22080127, now seen corresponding path program 2 times [2024-11-28 03:14:00,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:00,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227631208] [2024-11-28 03:14:00,389 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:14:00,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:00,431 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:14:00,432 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:00,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:00,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227631208] [2024-11-28 03:14:00,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227631208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:00,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:00,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:14:00,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693817181] [2024-11-28 03:14:00,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:00,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:00,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:00,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:00,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 29 [2024-11-28 03:14:00,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-28 03:14:00,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:00,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 29 [2024-11-28 03:14:00,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:00,679 INFO L124 PetriNetUnfolderBase]: 93/239 cut-off events. [2024-11-28 03:14:00,679 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-11-28 03:14:00,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 239 events. 93/239 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 797 event pairs, 25 based on Foata normal form. 10/249 useless extension candidates. Maximal degree in co-relation 180. Up to 102 conditions per place. [2024-11-28 03:14:00,685 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 37 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2024-11-28 03:14:00,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 44 transitions, 228 flow [2024-11-28 03:14:00,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:00,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:14:00,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-28 03:14:00,688 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-11-28 03:14:00,688 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 72 flow. Second operand 4 states and 66 transitions. [2024-11-28 03:14:00,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 44 transitions, 228 flow [2024-11-28 03:14:00,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 44 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:00,692 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 84 flow [2024-11-28 03:14:00,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2024-11-28 03:14:00,693 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2024-11-28 03:14:00,693 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 84 flow [2024-11-28 03:14:00,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-28 03:14:00,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:00,696 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:00,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:14:00,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:00,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1992564010, now seen corresponding path program 3 times [2024-11-28 03:14:00,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:00,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297452810] [2024-11-28 03:14:00,699 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:14:00,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:00,729 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:14:00,729 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:14:00,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:00,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297452810] [2024-11-28 03:14:00,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297452810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:00,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368742475] [2024-11-28 03:14:00,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:14:00,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:00,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:00,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:00,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:14:00,947 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:14:00,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:00,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:14:00,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:14:01,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:14:01,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368742475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:01,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:01,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 03:14:01,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786200437] [2024-11-28 03:14:01,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:01,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:14:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:01,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:14:01,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:14:01,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:01,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 84 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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) [2024-11-28 03:14:01,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:01,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:01,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:01,349 INFO L124 PetriNetUnfolderBase]: 227/522 cut-off events. [2024-11-28 03:14:01,349 INFO L125 PetriNetUnfolderBase]: For 455/455 co-relation queries the response was YES. [2024-11-28 03:14:01,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1449 conditions, 522 events. 227/522 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1947 event pairs, 35 based on Foata normal form. 42/564 useless extension candidates. Maximal degree in co-relation 427. Up to 118 conditions per place. [2024-11-28 03:14:01,362 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 62 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2024-11-28 03:14:01,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 71 transitions, 420 flow [2024-11-28 03:14:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:14:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:14:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2024-11-28 03:14:01,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5574712643678161 [2024-11-28 03:14:01,364 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 84 flow. Second operand 6 states and 97 transitions. [2024-11-28 03:14:01,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 71 transitions, 420 flow [2024-11-28 03:14:01,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 71 transitions, 390 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:01,370 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 118 flow [2024-11-28 03:14:01,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-11-28 03:14:01,371 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2024-11-28 03:14:01,371 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 118 flow [2024-11-28 03:14:01,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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) [2024-11-28 03:14:01,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:01,373 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:01,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:14:01,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:01,574 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:01,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash 891814248, now seen corresponding path program 4 times [2024-11-28 03:14:01,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:01,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501947294] [2024-11-28 03:14:01,575 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:14:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:01,613 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:14:01,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:01,724 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 03:14:01,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501947294] [2024-11-28 03:14:01,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501947294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493592617] [2024-11-28 03:14:01,724 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:14:01,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:01,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:01,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:01,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:14:01,838 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:14:01,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:01,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:14:01,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:14:01,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:14:02,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493592617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:02,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:02,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-28 03:14:02,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356333271] [2024-11-28 03:14:02,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:02,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:14:02,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:02,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:14:02,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:14:02,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:02,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 118 flow. Second operand has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 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) [2024-11-28 03:14:02,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:02,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:02,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:03,273 INFO L124 PetriNetUnfolderBase]: 635/1455 cut-off events. [2024-11-28 03:14:03,273 INFO L125 PetriNetUnfolderBase]: For 2101/2101 co-relation queries the response was YES. [2024-11-28 03:14:03,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4633 conditions, 1455 events. 635/1455 cut-off events. For 2101/2101 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6326 event pairs, 10 based on Foata normal form. 161/1616 useless extension candidates. Maximal degree in co-relation 1440. Up to 265 conditions per place. [2024-11-28 03:14:03,283 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 323 selfloop transitions, 92 changer transitions 0/418 dead transitions. [2024-11-28 03:14:03,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 418 transitions, 2488 flow [2024-11-28 03:14:03,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-28 03:14:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-28 03:14:03,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 720 transitions. [2024-11-28 03:14:03,288 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-28 03:14:03,288 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 118 flow. Second operand 45 states and 720 transitions. [2024-11-28 03:14:03,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 418 transitions, 2488 flow [2024-11-28 03:14:03,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 418 transitions, 2408 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-28 03:14:03,301 INFO L231 Difference]: Finished difference. Result has 112 places, 111 transitions, 994 flow [2024-11-28 03:14:03,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=994, PETRI_PLACES=112, PETRI_TRANSITIONS=111} [2024-11-28 03:14:03,302 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 85 predicate places. [2024-11-28 03:14:03,302 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 111 transitions, 994 flow [2024-11-28 03:14:03,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 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) [2024-11-28 03:14:03,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:03,303 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:03,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:14:03,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:03,504 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:03,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 140488757, now seen corresponding path program 5 times [2024-11-28 03:14:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:03,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117233667] [2024-11-28 03:14:03,505 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:14:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:03,565 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:14:03,567 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:14:03,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:03,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117233667] [2024-11-28 03:14:03,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117233667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:03,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544247581] [2024-11-28 03:14:03,795 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:14:03,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:03,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:03,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:14:03,955 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-28 03:14:03,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:03,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:14:03,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:14:04,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-28 03:14:04,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544247581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:04,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:04,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-28 03:14:04,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900291426] [2024-11-28 03:14:04,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:04,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:14:04,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:04,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:14:04,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:14:04,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:04,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 111 transitions, 994 flow. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2024-11-28 03:14:04,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:04,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:04,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:05,014 INFO L124 PetriNetUnfolderBase]: 1227/2905 cut-off events. [2024-11-28 03:14:05,014 INFO L125 PetriNetUnfolderBase]: For 51632/51643 co-relation queries the response was YES. [2024-11-28 03:14:05,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14160 conditions, 2905 events. 1227/2905 cut-off events. For 51632/51643 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15556 event pairs, 190 based on Foata normal form. 244/3110 useless extension candidates. Maximal degree in co-relation 12074. Up to 473 conditions per place. [2024-11-28 03:14:05,051 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 173 selfloop transitions, 50 changer transitions 0/231 dead transitions. [2024-11-28 03:14:05,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 231 transitions, 2662 flow [2024-11-28 03:14:05,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:14:05,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:14:05,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 167 transitions. [2024-11-28 03:14:05,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5758620689655173 [2024-11-28 03:14:05,053 INFO L175 Difference]: Start difference. First operand has 112 places, 111 transitions, 994 flow. Second operand 10 states and 167 transitions. [2024-11-28 03:14:05,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 231 transitions, 2662 flow [2024-11-28 03:14:05,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 231 transitions, 2520 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-11-28 03:14:05,191 INFO L231 Difference]: Finished difference. Result has 122 places, 116 transitions, 1142 flow [2024-11-28 03:14:05,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1142, PETRI_PLACES=122, PETRI_TRANSITIONS=116} [2024-11-28 03:14:05,192 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 95 predicate places. [2024-11-28 03:14:05,192 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 116 transitions, 1142 flow [2024-11-28 03:14:05,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2024-11-28 03:14:05,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:05,193 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:05,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:14:05,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:05,394 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:05,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:05,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1827390622, now seen corresponding path program 6 times [2024-11-28 03:14:05,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:05,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855430275] [2024-11-28 03:14:05,396 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:14:05,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:05,481 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-28 03:14:05,482 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 03:14:05,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:05,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855430275] [2024-11-28 03:14:05,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855430275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:05,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860042172] [2024-11-28 03:14:05,986 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:14:05,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:05,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:05,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:05,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:14:06,220 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-28 03:14:06,221 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:06,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:14:06,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 03:14:06,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 03:14:06,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860042172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:06,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:06,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 23 [2024-11-28 03:14:06,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722345826] [2024-11-28 03:14:06,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:06,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:14:06,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:06,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:14:06,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:14:06,637 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:06,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 116 transitions, 1142 flow. Second operand has 23 states, 23 states have (on average 11.08695652173913) internal successors, (255), 23 states have internal predecessors, (255), 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) [2024-11-28 03:14:06,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:06,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:06,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:08,365 INFO L124 PetriNetUnfolderBase]: 2225/5234 cut-off events. [2024-11-28 03:14:08,365 INFO L125 PetriNetUnfolderBase]: For 214908/214908 co-relation queries the response was YES. [2024-11-28 03:14:08,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29096 conditions, 5234 events. 2225/5234 cut-off events. For 214908/214908 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 29122 event pairs, 78 based on Foata normal form. 350/5584 useless extension candidates. Maximal degree in co-relation 26380. Up to 927 conditions per place. [2024-11-28 03:14:08,434 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 429 selfloop transitions, 88 changer transitions 0/521 dead transitions. [2024-11-28 03:14:08,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 521 transitions, 8090 flow [2024-11-28 03:14:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:14:08,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 03:14:08,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 376 transitions. [2024-11-28 03:14:08,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5893416927899686 [2024-11-28 03:14:08,437 INFO L175 Difference]: Start difference. First operand has 122 places, 116 transitions, 1142 flow. Second operand 22 states and 376 transitions. [2024-11-28 03:14:08,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 521 transitions, 8090 flow [2024-11-28 03:14:08,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 521 transitions, 6644 flow, removed 630 selfloop flow, removed 3 redundant places. [2024-11-28 03:14:08,652 INFO L231 Difference]: Finished difference. Result has 151 places, 160 transitions, 1756 flow [2024-11-28 03:14:08,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1756, PETRI_PLACES=151, PETRI_TRANSITIONS=160} [2024-11-28 03:14:08,653 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 124 predicate places. [2024-11-28 03:14:08,653 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 160 transitions, 1756 flow [2024-11-28 03:14:08,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.08695652173913) internal successors, (255), 23 states have internal predecessors, (255), 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) [2024-11-28 03:14:08,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:08,654 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:08,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:08,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 03:14:08,855 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:08,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:08,856 INFO L85 PathProgramCache]: Analyzing trace with hash 413769922, now seen corresponding path program 7 times [2024-11-28 03:14:08,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:08,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104723358] [2024-11-28 03:14:08,856 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:14:08,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-28 03:14:09,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:09,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104723358] [2024-11-28 03:14:09,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104723358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:09,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454323319] [2024-11-28 03:14:09,418 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 03:14:09,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:09,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:09,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:09,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:14:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:09,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:14:09,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-28 03:14:09,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-28 03:14:10,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454323319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:10,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:10,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-11-28 03:14:10,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430986283] [2024-11-28 03:14:10,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:10,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:14:10,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:10,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:14:10,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:14:10,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:10,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 160 transitions, 1756 flow. Second operand has 21 states, 21 states have (on average 10.80952380952381) internal successors, (227), 21 states have internal predecessors, (227), 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) [2024-11-28 03:14:10,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:10,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:10,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:13,335 INFO L124 PetriNetUnfolderBase]: 4890/11415 cut-off events. [2024-11-28 03:14:13,335 INFO L125 PetriNetUnfolderBase]: For 218284/218434 co-relation queries the response was YES. [2024-11-28 03:14:13,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56728 conditions, 11415 events. 4890/11415 cut-off events. For 218284/218434 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 73447 event pairs, 316 based on Foata normal form. 1040/12325 useless extension candidates. Maximal degree in co-relation 52572. Up to 1953 conditions per place. [2024-11-28 03:14:13,596 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 553 selfloop transitions, 60 changer transitions 0/625 dead transitions. [2024-11-28 03:14:13,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 625 transitions, 8854 flow [2024-11-28 03:14:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:14:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-28 03:14:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 342 transitions. [2024-11-28 03:14:13,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5896551724137931 [2024-11-28 03:14:13,599 INFO L175 Difference]: Start difference. First operand has 151 places, 160 transitions, 1756 flow. Second operand 20 states and 342 transitions. [2024-11-28 03:14:13,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 625 transitions, 8854 flow [2024-11-28 03:14:13,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 625 transitions, 8512 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-11-28 03:14:13,975 INFO L231 Difference]: Finished difference. Result has 172 places, 171 transitions, 2066 flow [2024-11-28 03:14:13,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1684, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2066, PETRI_PLACES=172, PETRI_TRANSITIONS=171} [2024-11-28 03:14:13,976 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 145 predicate places. [2024-11-28 03:14:13,976 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 171 transitions, 2066 flow [2024-11-28 03:14:13,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.80952380952381) internal successors, (227), 21 states have internal predecessors, (227), 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) [2024-11-28 03:14:13,977 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:13,977 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:13,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:14:14,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 03:14:14,178 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash -210443890, now seen corresponding path program 8 times [2024-11-28 03:14:14,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:14,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456609575] [2024-11-28 03:14:14,179 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:14:14,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:14,278 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:14:14,278 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 0 proven. 655 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 03:14:15,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456609575] [2024-11-28 03:14:15,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456609575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:15,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125537495] [2024-11-28 03:14:15,435 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:14:15,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:15,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:15,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:15,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:14:15,719 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:14:15,719 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:15,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:14:15,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 0 proven. 655 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 03:14:16,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 0 proven. 655 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-28 03:14:16,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125537495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:16,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:16,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 23 [2024-11-28 03:14:16,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93104574] [2024-11-28 03:14:16,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:16,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:14:16,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:16,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:14:16,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:14:16,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:16,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 171 transitions, 2066 flow. Second operand has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 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) [2024-11-28 03:14:16,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:16,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:16,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:19,806 INFO L124 PetriNetUnfolderBase]: 5401/12630 cut-off events. [2024-11-28 03:14:19,806 INFO L125 PetriNetUnfolderBase]: For 266736/266906 co-relation queries the response was YES. [2024-11-28 03:14:19,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67196 conditions, 12630 events. 5401/12630 cut-off events. For 266736/266906 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 82284 event pairs, 352 based on Foata normal form. 348/12830 useless extension candidates. Maximal degree in co-relation 61836. Up to 2163 conditions per place. [2024-11-28 03:14:19,914 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 611 selfloop transitions, 62 changer transitions 0/685 dead transitions. [2024-11-28 03:14:19,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 685 transitions, 9566 flow [2024-11-28 03:14:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:14:19,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-28 03:14:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 368 transitions. [2024-11-28 03:14:19,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5768025078369906 [2024-11-28 03:14:19,917 INFO L175 Difference]: Start difference. First operand has 172 places, 171 transitions, 2066 flow. Second operand 22 states and 368 transitions. [2024-11-28 03:14:19,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 685 transitions, 9566 flow [2024-11-28 03:14:20,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 685 transitions, 9482 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-28 03:14:20,284 INFO L231 Difference]: Finished difference. Result has 189 places, 174 transitions, 2188 flow [2024-11-28 03:14:20,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1982, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2188, PETRI_PLACES=189, PETRI_TRANSITIONS=174} [2024-11-28 03:14:20,285 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 162 predicate places. [2024-11-28 03:14:20,285 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 174 transitions, 2188 flow [2024-11-28 03:14:20,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 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) [2024-11-28 03:14:20,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:20,285 INFO L206 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:20,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:14:20,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:14:20,486 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:20,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash 201741106, now seen corresponding path program 9 times [2024-11-28 03:14:20,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:20,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153957129] [2024-11-28 03:14:20,487 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:14:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:20,690 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-11-28 03:14:20,691 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1940 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:24,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:24,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153957129] [2024-11-28 03:14:24,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153957129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:24,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960060534] [2024-11-28 03:14:24,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:14:24,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:24,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:24,641 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:24,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:14:25,720 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-11-28 03:14:25,720 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:25,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-28 03:14:25,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:26,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1940 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:26,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 1940 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:14:26,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960060534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:14:26,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:14:26,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 44 [2024-11-28 03:14:26,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200825964] [2024-11-28 03:14:26,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:14:26,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 03:14:26,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:26,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 03:14:26,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1892, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:14:26,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:26,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 174 transitions, 2188 flow. Second operand has 45 states, 45 states have (on average 9.8) internal successors, (441), 45 states have internal predecessors, (441), 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) [2024-11-28 03:14:26,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:26,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:26,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:41,235 INFO L124 PetriNetUnfolderBase]: 9504/24589 cut-off events. [2024-11-28 03:14:41,236 INFO L125 PetriNetUnfolderBase]: For 1349799/1350281 co-relation queries the response was YES. [2024-11-28 03:14:41,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191385 conditions, 24589 events. 9504/24589 cut-off events. For 1349799/1350281 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 197105 event pairs, 1493 based on Foata normal form. 483/24883 useless extension candidates. Maximal degree in co-relation 148638. Up to 5581 conditions per place. [2024-11-28 03:14:41,558 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 1865 selfloop transitions, 83 changer transitions 2/1966 dead transitions. [2024-11-28 03:14:41,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1966 transitions, 33306 flow [2024-11-28 03:14:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-28 03:14:41,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-28 03:14:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 732 transitions. [2024-11-28 03:14:41,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5736677115987461 [2024-11-28 03:14:41,562 INFO L175 Difference]: Start difference. First operand has 189 places, 174 transitions, 2188 flow. Second operand 44 states and 732 transitions. [2024-11-28 03:14:41,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 1966 transitions, 33306 flow [2024-11-28 03:14:43,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 1966 transitions, 31885 flow, removed 0 selfloop flow, removed 17 redundant places. [2024-11-28 03:14:43,384 INFO L231 Difference]: Finished difference. Result has 217 places, 256 transitions, 2426 flow [2024-11-28 03:14:43,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2084, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=2426, PETRI_PLACES=217, PETRI_TRANSITIONS=256} [2024-11-28 03:14:43,385 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 190 predicate places. [2024-11-28 03:14:43,385 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 256 transitions, 2426 flow [2024-11-28 03:14:43,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 9.8) internal successors, (441), 45 states have internal predecessors, (441), 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) [2024-11-28 03:14:43,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:43,386 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:43,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:14:43,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:43,587 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:43,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash -376352635, now seen corresponding path program 10 times [2024-11-28 03:14:43,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623678265] [2024-11-28 03:14:43,589 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:14:43,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:43,707 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:14:43,707 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:44,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 1301 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-11-28 03:14:44,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:44,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623678265] [2024-11-28 03:14:44,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623678265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:44,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:44,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-28 03:14:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092277587] [2024-11-28 03:14:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:44,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:14:44,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:44,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:14:44,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:14:44,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:44,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 256 transitions, 2426 flow. Second operand has 23 states, 23 states have (on average 11.347826086956522) internal successors, (261), 23 states have internal predecessors, (261), 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) [2024-11-28 03:14:44,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:44,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:44,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:52,122 INFO L124 PetriNetUnfolderBase]: 9379/21520 cut-off events. [2024-11-28 03:14:52,122 INFO L125 PetriNetUnfolderBase]: For 1094306/1094658 co-relation queries the response was YES. [2024-11-28 03:14:52,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152271 conditions, 21520 events. 9379/21520 cut-off events. For 1094306/1094658 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 158446 event pairs, 299 based on Foata normal form. 441/21731 useless extension candidates. Maximal degree in co-relation 152190. Up to 4121 conditions per place. [2024-11-28 03:14:52,453 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 1958 selfloop transitions, 61 changer transitions 0/2031 dead transitions. [2024-11-28 03:14:52,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 2031 transitions, 17996 flow [2024-11-28 03:14:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:14:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-28 03:14:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 378 transitions. [2024-11-28 03:14:52,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5667166416791605 [2024-11-28 03:14:52,456 INFO L175 Difference]: Start difference. First operand has 217 places, 256 transitions, 2426 flow. Second operand 23 states and 378 transitions. [2024-11-28 03:14:52,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 2031 transitions, 17996 flow [2024-11-28 03:14:54,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 2031 transitions, 17982 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 03:14:54,446 INFO L231 Difference]: Finished difference. Result has 236 places, 255 transitions, 2520 flow [2024-11-28 03:14:54,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2398, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2520, PETRI_PLACES=236, PETRI_TRANSITIONS=255} [2024-11-28 03:14:54,447 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 209 predicate places. [2024-11-28 03:14:54,447 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 255 transitions, 2520 flow [2024-11-28 03:14:54,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.347826086956522) internal successors, (261), 23 states have internal predecessors, (261), 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) [2024-11-28 03:14:54,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:14:54,448 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:54,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:14:54,448 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 03:14:54,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1783986964, now seen corresponding path program 11 times [2024-11-28 03:14:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:14:54,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670224000] [2024-11-28 03:14:54,450 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:14:54,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:14:54,559 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2024-11-28 03:14:54,560 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:14:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2041 backedges. 1071 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-28 03:14:55,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:14:55,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670224000] [2024-11-28 03:14:55,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670224000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:55,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:55,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-28 03:14:55,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872653434] [2024-11-28 03:14:55,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:55,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:14:55,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:14:55,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:14:55,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:14:55,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2024-11-28 03:14:55,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 255 transitions, 2520 flow. Second operand has 23 states, 23 states have (on average 11.130434782608695) internal successors, (256), 23 states have internal predecessors, (256), 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) [2024-11-28 03:14:55,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:14:55,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2024-11-28 03:14:55,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:14:59,775 INFO L124 PetriNetUnfolderBase]: 5164/12142 cut-off events. [2024-11-28 03:14:59,775 INFO L125 PetriNetUnfolderBase]: For 260108/260108 co-relation queries the response was YES. [2024-11-28 03:14:59,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73156 conditions, 12142 events. 5164/12142 cut-off events. For 260108/260108 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 82199 event pairs, 29 based on Foata normal form. 83/12225 useless extension candidates. Maximal degree in co-relation 72663. Up to 2410 conditions per place. [2024-11-28 03:14:59,871 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 0 selfloop transitions, 0 changer transitions 1629/1629 dead transitions. [2024-11-28 03:14:59,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 1629 transitions, 21025 flow [2024-11-28 03:14:59,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:14:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-28 03:14:59,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 376 transitions. [2024-11-28 03:14:59,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5637181409295352 [2024-11-28 03:14:59,873 INFO L175 Difference]: Start difference. First operand has 236 places, 255 transitions, 2520 flow. Second operand 23 states and 376 transitions. [2024-11-28 03:14:59,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 1629 transitions, 21025 flow [2024-11-28 03:15:00,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 1629 transitions, 20031 flow, removed 0 selfloop flow, removed 24 redundant places. [2024-11-28 03:15:00,460 INFO L231 Difference]: Finished difference. Result has 230 places, 0 transitions, 0 flow [2024-11-28 03:15:00,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2304, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=0, PETRI_PLACES=230, PETRI_TRANSITIONS=0} [2024-11-28 03:15:00,461 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 203 predicate places. [2024-11-28 03:15:00,461 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 0 transitions, 0 flow [2024-11-28 03:15:00,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.130434782608695) internal successors, (256), 23 states have internal predecessors, (256), 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) [2024-11-28 03:15:00,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2024-11-28 03:15:00,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 3 remaining) [2024-11-28 03:15:00,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-28 03:15:00,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:15:00,465 INFO L422 BasicCegarLoop]: Path program histogram: [11, 1, 1] [2024-11-28 03:15:00,470 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:15:00,470 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:15:00,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:00 BasicIcfg [2024-11-28 03:15:00,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:15:00,477 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:15:00,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:15:00,477 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:15:00,478 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:58" (3/4) ... [2024-11-28 03:15:00,481 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:15:00,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2024-11-28 03:15:00,489 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-28 03:15:00,489 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 03:15:00,490 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:15:00,490 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:15:00,588 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:15:00,588 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:15:00,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:15:00,590 INFO L158 Benchmark]: Toolchain (without parser) took 63244.46ms. Allocated memory was 117.4MB in the beginning and 7.8GB in the end (delta: 7.7GB). Free memory was 91.8MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-28 03:15:00,591 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 104.4MB in the end (delta: 216.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:15:00,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.47ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 54.1MB in the end (delta: 37.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 03:15:00,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.79ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 52.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:15:00,592 INFO L158 Benchmark]: Boogie Preprocessor took 53.60ms. Allocated memory is still 117.4MB. Free memory was 52.0MB in the beginning and 50.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:15:00,593 INFO L158 Benchmark]: RCFGBuilder took 631.69ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 50.2MB in the beginning and 313.1MB in the end (delta: -262.9MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-11-28 03:15:00,594 INFO L158 Benchmark]: TraceAbstraction took 61578.58ms. Allocated memory was 352.3MB in the beginning and 7.8GB in the end (delta: 7.4GB). Free memory was 312.6MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-28 03:15:00,594 INFO L158 Benchmark]: Witness Printer took 111.61ms. Allocated memory is still 7.8GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:15:00,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 104.4MB in the end (delta: 216.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.47ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 54.1MB in the end (delta: 37.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.79ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 52.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.60ms. Allocated memory is still 117.4MB. Free memory was 52.0MB in the beginning and 50.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 631.69ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 50.2MB in the beginning and 313.1MB in the end (delta: -262.9MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 61578.58ms. Allocated memory was 352.3MB in the beginning and 7.8GB in the end (delta: 7.4GB). Free memory was 312.6MB in the beginning and 6.2GB in the end (delta: -5.9GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 111.61ms. Allocated memory is still 7.8GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1334]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 34 locations, 3 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: 61.5s, OverallIterations: 13, TraceHistogramMax: 21, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 44.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1864 SdHoareTripleChecker+Valid, 10.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1850 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22905 IncrementalHoareTripleChecker+Invalid, 22959 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 0 mSDtfsCounter, 22905 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1803 GetRequests, 1575 SyntacticMatches, 20 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2520occurred in iteration=12, InterpolantAutomatonStates: 228, 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, 2.0s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 2115 NumberOfCodeBlocks, 2105 NumberOfCodeBlocksAsserted, 124 NumberOfCheckSat, 2895 ConstructedInterpolants, 0 QuantifiedInterpolants, 6859 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3435 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 9100/18011 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:15:00,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81847147-b840-411a-aa80-d07376d480da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE