./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab88d5d149a161a7149bad4a02dfeb168f970e6264d498d3725e0f24ecb8e5e3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:57:47,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:57:47,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:57:47,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:57:47,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:57:47,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:57:47,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:57:47,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:57:47,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:57:47,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:57:47,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:57:47,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:57:47,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:57:47,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:57:47,572 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:57:47,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:57:47,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:57:47,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:57:47,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:57:47,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:57:47,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:57:47,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:57:47,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:57:47,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:57:47,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:57:47,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:57:47,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:57:47,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:57:47,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:57:47,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:57:47,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:57:47,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:57:47,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:47,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:57:47,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:57:47,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:57:47,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:57:47,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:57:47,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:57:47,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:57:47,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:57:47,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:57:47,593 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab88d5d149a161a7149bad4a02dfeb168f970e6264d498d3725e0f24ecb8e5e3 [2024-10-31 21:57:47,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:57:47,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:57:47,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:57:47,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:57:47,934 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:57:47,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i Unable to find full path for "g++" [2024-10-31 21:57:50,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:57:50,451 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:57:50,452 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-31 21:57:50,468 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/data/e931197a2/dd630662ec034541b525b3ce313b2ea8/FLAG1bdcfb960 [2024-10-31 21:57:50,487 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/data/e931197a2/dd630662ec034541b525b3ce313b2ea8 [2024-10-31 21:57:50,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:57:50,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:57:50,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:50,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:57:50,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:57:50,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:50" (1/1) ... [2024-10-31 21:57:50,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7aada1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:50, skipping insertion in model container [2024-10-31 21:57:50,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:57:50" (1/1) ... [2024-10-31 21:57:50,562 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:57:51,040 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[30145,30158] [2024-10-31 21:57:51,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:51,077 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:57:51,133 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[30145,30158] [2024-10-31 21:57:51,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:57:51,188 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:57:51,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51 WrapperNode [2024-10-31 21:57:51,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:57:51,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:51,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:57:51,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:57:51,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,241 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2024-10-31 21:57:51,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:57:51,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:57:51,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:57:51,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:57:51,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,262 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,288 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 11]. The 0 writes are split as follows [0, 0]. [2024-10-31 21:57:51,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:57:51,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:57:51,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:57:51,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:57:51,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (1/1) ... [2024-10-31 21:57:51,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:57:51,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:57:51,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:57:51,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:57:51,388 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-10-31 21:57:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-10-31 21:57:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:57:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-31 21:57:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-31 21:57:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-10-31 21:57:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:57:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:57:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:57:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:57:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-31 21:57:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-31 21:57:51,393 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:57:51,609 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:57:51,612 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:57:51,870 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:57:51,871 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:57:52,070 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:57:52,071 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:57:52,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:52 BoogieIcfgContainer [2024-10-31 21:57:52,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:57:52,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:57:52,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:57:52,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:57:52,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:57:50" (1/3) ... [2024-10-31 21:57:52,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27422c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:52, skipping insertion in model container [2024-10-31 21:57:52,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:57:51" (2/3) ... [2024-10-31 21:57:52,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27422c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:57:52, skipping insertion in model container [2024-10-31 21:57:52,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:52" (3/3) ... [2024-10-31 21:57:52,087 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2024-10-31 21:57:52,110 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:57:52,110 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:57:52,111 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:57:52,181 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-31 21:57:52,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 120 flow [2024-10-31 21:57:52,337 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-10-31 21:57:52,337 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 21:57:52,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 42 events. 2/42 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-10-31 21:57:52,345 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 46 transitions, 120 flow [2024-10-31 21:57:52,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 40 transitions, 101 flow [2024-10-31 21:57:52,364 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:57:52,376 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=LoopHeads, 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;@7f372557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:57:52,376 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 21:57:52,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:57:52,397 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-10-31 21:57:52,397 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:57:52,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:52,399 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:52,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:52,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1231612407, now seen corresponding path program 1 times [2024-10-31 21:57:52,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:52,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021807769] [2024-10-31 21:57:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:52,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:52,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021807769] [2024-10-31 21:57:52,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021807769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:52,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:52,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:52,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171514478] [2024-10-31 21:57:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:52,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:52,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:52,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-10-31 21:57:52,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:52,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:52,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-10-31 21:57:52,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:54,720 INFO L124 PetriNetUnfolderBase]: 8977/13370 cut-off events. [2024-10-31 21:57:54,720 INFO L125 PetriNetUnfolderBase]: For 1098/1098 co-relation queries the response was YES. [2024-10-31 21:57:54,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26796 conditions, 13370 events. 8977/13370 cut-off events. For 1098/1098 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 85902 event pairs, 4476 based on Foata normal form. 790/13554 useless extension candidates. Maximal degree in co-relation 24273. Up to 7538 conditions per place. [2024-10-31 21:57:54,814 INFO L140 encePairwiseOnDemand]: 39/46 looper letters, 49 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2024-10-31 21:57:54,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 61 transitions, 264 flow [2024-10-31 21:57:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-10-31 21:57:54,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6739130434782609 [2024-10-31 21:57:54,829 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 101 flow. Second operand 3 states and 93 transitions. [2024-10-31 21:57:54,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 61 transitions, 264 flow [2024-10-31 21:57:54,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 242 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-31 21:57:54,868 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 114 flow [2024-10-31 21:57:54,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-10-31 21:57:54,875 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-10-31 21:57:54,877 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 114 flow [2024-10-31 21:57:54,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:54,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:54,878 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:54,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:57:54,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:54,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash -765020605, now seen corresponding path program 1 times [2024-10-31 21:57:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:54,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377429326] [2024-10-31 21:57:54,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:54,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:55,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:55,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377429326] [2024-10-31 21:57:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377429326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:55,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:55,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:55,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358595609] [2024-10-31 21:57:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:55,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:55,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:55,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:55,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-10-31 21:57:55,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:55,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:55,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-10-31 21:57:55,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:55,338 INFO L124 PetriNetUnfolderBase]: 468/977 cut-off events. [2024-10-31 21:57:55,338 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-10-31 21:57:55,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 977 events. 468/977 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5585 event pairs, 72 based on Foata normal form. 698/1635 useless extension candidates. Maximal degree in co-relation 1287. Up to 686 conditions per place. [2024-10-31 21:57:55,344 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 30 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2024-10-31 21:57:55,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 195 flow [2024-10-31 21:57:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:55,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-10-31 21:57:55,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2024-10-31 21:57:55,348 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 114 flow. Second operand 3 states and 82 transitions. [2024-10-31 21:57:55,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 195 flow [2024-10-31 21:57:55,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 185 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:57:55,355 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 103 flow [2024-10-31 21:57:55,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-10-31 21:57:55,359 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -9 predicate places. [2024-10-31 21:57:55,359 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 103 flow [2024-10-31 21:57:55,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:55,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:55,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:55,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:57:55,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:55,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:55,360 INFO L85 PathProgramCache]: Analyzing trace with hash 954859745, now seen corresponding path program 2 times [2024-10-31 21:57:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:55,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539579641] [2024-10-31 21:57:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:55,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:55,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:55,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539579641] [2024-10-31 21:57:55,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539579641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:55,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:55,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:55,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575935336] [2024-10-31 21:57:55,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:55,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:55,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:55,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:55,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:55,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-10-31 21:57:55,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:55,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:55,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-10-31 21:57:55,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:55,592 INFO L124 PetriNetUnfolderBase]: 44/129 cut-off events. [2024-10-31 21:57:55,593 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-10-31 21:57:55,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 129 events. 44/129 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 468 event pairs, 4 based on Foata normal form. 60/181 useless extension candidates. Maximal degree in co-relation 219. Up to 92 conditions per place. [2024-10-31 21:57:55,594 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 18 selfloop transitions, 2 changer transitions 6/34 dead transitions. [2024-10-31 21:57:55,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 151 flow [2024-10-31 21:57:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-10-31 21:57:55,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-10-31 21:57:55,597 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 103 flow. Second operand 3 states and 72 transitions. [2024-10-31 21:57:55,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 151 flow [2024-10-31 21:57:55,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 141 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-10-31 21:57:55,599 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 69 flow [2024-10-31 21:57:55,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2024-10-31 21:57:55,600 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -15 predicate places. [2024-10-31 21:57:55,600 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 69 flow [2024-10-31 21:57:55,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:55,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:57:55,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:57:55,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:57:55,601 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 21:57:55,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:57:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1071216268, now seen corresponding path program 1 times [2024-10-31 21:57:55,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:57:55,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176723834] [2024-10-31 21:57:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:57:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:57:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:57:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:57:55,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:57:55,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176723834] [2024-10-31 21:57:55,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176723834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:57:55,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:57:55,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:57:55,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261128306] [2024-10-31 21:57:55,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:57:55,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:57:55,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:57:55,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:57:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:57:55,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-10-31 21:57:55,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:55,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:57:55,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-10-31 21:57:55,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:57:55,714 INFO L124 PetriNetUnfolderBase]: 31/81 cut-off events. [2024-10-31 21:57:55,714 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-10-31 21:57:55,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 81 events. 31/81 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 223 event pairs, 15 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 200. Up to 45 conditions per place. [2024-10-31 21:57:55,715 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2024-10-31 21:57:55,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 113 flow [2024-10-31 21:57:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:57:55,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:57:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-10-31 21:57:55,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.391304347826087 [2024-10-31 21:57:55,717 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 69 flow. Second operand 3 states and 54 transitions. [2024-10-31 21:57:55,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 113 flow [2024-10-31 21:57:55,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 103 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-10-31 21:57:55,718 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2024-10-31 21:57:55,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2024-10-31 21:57:55,719 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -21 predicate places. [2024-10-31 21:57:55,719 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2024-10-31 21:57:55,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:57:55,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-10-31 21:57:55,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2024-10-31 21:57:55,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-31 21:57:55,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-31 21:57:55,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-31 21:57:55,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-10-31 21:57:55,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-10-31 21:57:55,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:57:55,726 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-31 21:57:55,732 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:57:55,732 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:57:55,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:57:55 BasicIcfg [2024-10-31 21:57:55,739 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:57:55,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:57:55,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:57:55,740 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:57:55,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:57:52" (3/4) ... [2024-10-31 21:57:55,743 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:57:55,747 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2024-10-31 21:57:55,747 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2024-10-31 21:57:55,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-10-31 21:57:55,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-31 21:57:55,756 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:57:55,756 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:57:55,915 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:57:55,916 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:57:55,920 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:57:55,921 INFO L158 Benchmark]: Toolchain (without parser) took 5427.16ms. Allocated memory was 153.1MB in the beginning and 281.0MB in the end (delta: 127.9MB). Free memory was 117.8MB in the beginning and 129.3MB in the end (delta: -11.5MB). Peak memory consumption was 117.4MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,921 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 153.1MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:57:55,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.77ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 95.7MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.41ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 93.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,922 INFO L158 Benchmark]: Boogie Preprocessor took 65.43ms. Allocated memory is still 153.1MB. Free memory was 93.7MB in the beginning and 91.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,923 INFO L158 Benchmark]: RCFGBuilder took 763.15ms. Allocated memory is still 153.1MB. Free memory was 91.7MB in the beginning and 65.8MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,924 INFO L158 Benchmark]: TraceAbstraction took 3663.68ms. Allocated memory was 153.1MB in the beginning and 281.0MB in the end (delta: 127.9MB). Free memory was 64.9MB in the beginning and 134.5MB in the end (delta: -69.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,925 INFO L158 Benchmark]: Witness Printer took 180.43ms. Allocated memory is still 281.0MB. Free memory was 134.5MB in the beginning and 129.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 21:57:55,926 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 153.1MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.77ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 95.7MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.41ms. Allocated memory is still 153.1MB. Free memory was 95.7MB in the beginning and 93.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.43ms. Allocated memory is still 153.1MB. Free memory was 93.7MB in the beginning and 91.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.15ms. Allocated memory is still 153.1MB. Free memory was 91.7MB in the beginning and 65.8MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3663.68ms. Allocated memory was 153.1MB in the beginning and 281.0MB in the end (delta: 127.9MB). Free memory was 64.9MB in the beginning and 134.5MB in the end (delta: -69.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 180.43ms. Allocated memory is still 281.0MB. Free memory was 134.5MB in the beginning and 129.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 7 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: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 21:57:55,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15f5096-a88f-47df-b8c2-49c71dd3bed3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE