./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX --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 07d1abd007d632a3b4dac260b28d2ba8a005f15955283342b1ec38e7417e11f4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:14:45,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:14:45,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:14:45,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:14:45,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:14:45,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:14:45,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:14:45,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:14:45,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:14:45,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:14:45,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:14:45,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:14:45,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:14:45,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:14:45,813 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:14:45,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:14:45,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:14:45,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:14:45,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:14:45,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:14:45,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:14:45,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:14:45,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:14:45,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:14:45,819 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:14:45,819 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:14:45,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:14:45,820 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:14:45,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:14:45,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:14:45,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:14:45,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:14:45,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:14:45,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:14:45,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:14:45,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:14:45,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:14:45,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:14:45,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:14:45,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:14:45,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:14:45,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:14:45,830 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_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07d1abd007d632a3b4dac260b28d2ba8a005f15955283342b1ec38e7417e11f4 [2024-11-08 18:14:46,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:14:46,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:14:46,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:14:46,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:14:46,225 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:14:46,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-atomic/dekker.i Unable to find full path for "g++" [2024-11-08 18:14:48,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:14:48,941 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:14:48,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/sv-benchmarks/c/pthread-atomic/dekker.i [2024-11-08 18:14:48,964 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/data/176a0116b/660bb09d0baa46808e22fb57a0e3906a/FLAGf01659830 [2024-11-08 18:14:49,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/data/176a0116b/660bb09d0baa46808e22fb57a0e3906a [2024-11-08 18:14:49,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:14:49,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:14:49,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:14:49,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:14:49,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:14:49,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43385c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49, skipping insertion in model container [2024-11-08 18:14:49,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:14:49,680 WARN L250 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_056e60af-3ac4-48c0-9c38-352b055c103e/sv-benchmarks/c/pthread-atomic/dekker.i[32914,32927] [2024-11-08 18:14:49,688 WARN L250 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_056e60af-3ac4-48c0-9c38-352b055c103e/sv-benchmarks/c/pthread-atomic/dekker.i[33150,33163] [2024-11-08 18:14:49,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:14:49,708 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:14:49,774 WARN L250 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_056e60af-3ac4-48c0-9c38-352b055c103e/sv-benchmarks/c/pthread-atomic/dekker.i[32914,32927] [2024-11-08 18:14:49,776 WARN L250 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_056e60af-3ac4-48c0-9c38-352b055c103e/sv-benchmarks/c/pthread-atomic/dekker.i[33150,33163] [2024-11-08 18:14:49,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:14:49,831 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:14:49,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49 WrapperNode [2024-11-08 18:14:49,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:14:49,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:14:49,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:14:49,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:14:49,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,894 INFO L138 Inliner]: procedures = 167, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-08 18:14:49,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:14:49,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:14:49,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:14:49,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:14:49,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,944 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:14:49,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:14:49,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:14:49,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:14:49,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:14:49,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (1/1) ... [2024-11-08 18:14:49,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:14:50,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:14:50,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:14:50,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:14:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-08 18:14:50,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-08 18:14:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-08 18:14:50,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-08 18:14:50,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:14:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:14:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:14:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:14:50,084 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:14:50,279 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:14:50,282 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:14:50,502 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:14:50,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:14:50,662 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:14:50,667 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:14:50,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:14:50 BoogieIcfgContainer [2024-11-08 18:14:50,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:14:50,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:14:50,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:14:50,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:14:50,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:14:49" (1/3) ... [2024-11-08 18:14:50,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5853df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:14:50, skipping insertion in model container [2024-11-08 18:14:50,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:49" (2/3) ... [2024-11-08 18:14:50,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5853df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:14:50, skipping insertion in model container [2024-11-08 18:14:50,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:14:50" (3/3) ... [2024-11-08 18:14:50,686 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2024-11-08 18:14:50,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:14:50,730 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:14:50,730 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:14:50,803 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:14:50,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 54 transitions, 122 flow [2024-11-08 18:14:50,880 INFO L124 PetriNetUnfolderBase]: 12/52 cut-off events. [2024-11-08 18:14:50,880 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 18:14:50,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 52 events. 12/52 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 117 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2024-11-08 18:14:50,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 54 transitions, 122 flow [2024-11-08 18:14:50,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 50 transitions, 109 flow [2024-11-08 18:14:50,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:14:50,917 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;@1a7e8066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:14:50,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 18:14:50,927 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:14:50,927 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2024-11-08 18:14:50,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:14:50,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:14:50,928 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:14:50,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:14:50,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:50,935 INFO L85 PathProgramCache]: Analyzing trace with hash -841166786, now seen corresponding path program 1 times [2024-11-08 18:14:50,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:14:50,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786702828] [2024-11-08 18:14:50,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:50,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:14:51,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:51,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786702828] [2024-11-08 18:14:51,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786702828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:51,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:51,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:14:51,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944468382] [2024-11-08 18:14:51,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:51,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:14:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:14:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:14:51,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 54 [2024-11-08 18:14:51,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 50 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:14:51,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:14:51,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 54 [2024-11-08 18:14:51,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:14:51,496 INFO L124 PetriNetUnfolderBase]: 62/200 cut-off events. [2024-11-08 18:14:51,496 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-08 18:14:51,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 200 events. 62/200 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 958 event pairs, 16 based on Foata normal form. 35/201 useless extension candidates. Maximal degree in co-relation 274. Up to 53 conditions per place. [2024-11-08 18:14:51,503 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 13 selfloop transitions, 3 changer transitions 1/53 dead transitions. [2024-11-08 18:14:51,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 152 flow [2024-11-08 18:14:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:14:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:14:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-08 18:14:51,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8395061728395061 [2024-11-08 18:14:51,525 INFO L175 Difference]: Start difference. First operand has 45 places, 50 transitions, 109 flow. Second operand 3 states and 136 transitions. [2024-11-08 18:14:51,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 152 flow [2024-11-08 18:14:51,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 145 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:14:51,533 INFO L231 Difference]: Finished difference. Result has 46 places, 49 transitions, 120 flow [2024-11-08 18:14:51,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=46, PETRI_TRANSITIONS=49} [2024-11-08 18:14:51,544 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2024-11-08 18:14:51,544 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 49 transitions, 120 flow [2024-11-08 18:14:51,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:14:51,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:14:51,545 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:14:51,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:14:51,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:14:51,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash -638518164, now seen corresponding path program 1 times [2024-11-08 18:14:51,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:14:51,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140838701] [2024-11-08 18:14:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:51,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:14:51,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:51,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140838701] [2024-11-08 18:14:51,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140838701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:51,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:51,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:14:51,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377389989] [2024-11-08 18:14:51,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:51,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:14:51,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:14:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:14:51,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 54 [2024-11-08 18:14:51,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 49 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:14:51,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:14:51,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 54 [2024-11-08 18:14:51,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:14:51,774 INFO L124 PetriNetUnfolderBase]: 64/216 cut-off events. [2024-11-08 18:14:51,778 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-08 18:14:51,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 216 events. 64/216 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1056 event pairs, 28 based on Foata normal form. 13/206 useless extension candidates. Maximal degree in co-relation 194. Up to 80 conditions per place. [2024-11-08 18:14:51,787 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 12 selfloop transitions, 2 changer transitions 3/53 dead transitions. [2024-11-08 18:14:51,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 163 flow [2024-11-08 18:14:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:14:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:14:51,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-11-08 18:14:51,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8209876543209876 [2024-11-08 18:14:51,795 INFO L175 Difference]: Start difference. First operand has 46 places, 49 transitions, 120 flow. Second operand 3 states and 133 transitions. [2024-11-08 18:14:51,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 163 flow [2024-11-08 18:14:51,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:14:51,799 INFO L231 Difference]: Finished difference. Result has 47 places, 49 transitions, 124 flow [2024-11-08 18:14:51,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=47, PETRI_TRANSITIONS=49} [2024-11-08 18:14:51,801 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2024-11-08 18:14:51,801 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 49 transitions, 124 flow [2024-11-08 18:14:51,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:14:51,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:14:51,802 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:14:51,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:14:51,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:14:51,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:51,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1122165969, now seen corresponding path program 1 times [2024-11-08 18:14:51,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:14:51,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16545428] [2024-11-08 18:14:51,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:51,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:51,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:14:51,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:51,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16545428] [2024-11-08 18:14:51,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16545428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:51,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:51,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:14:51,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322798808] [2024-11-08 18:14:51,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:51,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:14:51,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:14:51,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:14:52,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 54 [2024-11-08 18:14:52,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 49 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-08 18:14:52,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:14:52,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 54 [2024-11-08 18:14:52,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:14:52,149 INFO L124 PetriNetUnfolderBase]: 102/304 cut-off events. [2024-11-08 18:14:52,149 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-08 18:14:52,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 304 events. 102/304 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1566 event pairs, 44 based on Foata normal form. 3/253 useless extension candidates. Maximal degree in co-relation 306. Up to 103 conditions per place. [2024-11-08 18:14:52,157 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 14 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2024-11-08 18:14:52,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 170 flow [2024-11-08 18:14:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:14:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:14:52,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-08 18:14:52,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7901234567901234 [2024-11-08 18:14:52,161 INFO L175 Difference]: Start difference. First operand has 47 places, 49 transitions, 124 flow. Second operand 3 states and 128 transitions. [2024-11-08 18:14:52,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 170 flow [2024-11-08 18:14:52,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:14:52,165 INFO L231 Difference]: Finished difference. Result has 49 places, 49 transitions, 138 flow [2024-11-08 18:14:52,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=49, PETRI_TRANSITIONS=49} [2024-11-08 18:14:52,166 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places. [2024-11-08 18:14:52,166 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 49 transitions, 138 flow [2024-11-08 18:14:52,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-08 18:14:52,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:14:52,167 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:14:52,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:14:52,167 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-08 18:14:52,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:52,168 INFO L85 PathProgramCache]: Analyzing trace with hash 464570825, now seen corresponding path program 2 times [2024-11-08 18:14:52,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:14:52,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359191620] [2024-11-08 18:14:52,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:52,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:14:52,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:52,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359191620] [2024-11-08 18:14:52,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359191620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:52,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:52,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:14:52,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329375480] [2024-11-08 18:14:52,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:52,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:14:52,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:52,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:14:52,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:14:52,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 54 [2024-11-08 18:14:52,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 49 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-08 18:14:52,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:14:52,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 54 [2024-11-08 18:14:52,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:14:52,369 INFO L124 PetriNetUnfolderBase]: 94/234 cut-off events. [2024-11-08 18:14:52,369 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-08 18:14:52,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 234 events. 94/234 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 993 event pairs, 37 based on Foata normal form. 8/206 useless extension candidates. Maximal degree in co-relation 196. Up to 91 conditions per place. [2024-11-08 18:14:52,372 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-11-08 18:14:52,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 167 flow [2024-11-08 18:14:52,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:14:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:14:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-11-08 18:14:52,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7839506172839507 [2024-11-08 18:14:52,374 INFO L175 Difference]: Start difference. First operand has 49 places, 49 transitions, 138 flow. Second operand 3 states and 127 transitions. [2024-11-08 18:14:52,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 167 flow [2024-11-08 18:14:52,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 153 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-08 18:14:52,379 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-08 18:14:52,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-08 18:14:52,380 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2024-11-08 18:14:52,380 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-08 18:14:52,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-08 18:14:52,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-08 18:14:52,385 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-08 18:14:52,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-08 18:14:52,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-08 18:14:52,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-08 18:14:52,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-08 18:14:52,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:14:52,387 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-08 18:14:52,398 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:14:52,398 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:14:52,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:14:52 BasicIcfg [2024-11-08 18:14:52,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:14:52,406 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:14:52,406 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:14:52,407 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:14:52,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:14:50" (3/4) ... [2024-11-08 18:14:52,411 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:14:52,415 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-08 18:14:52,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-08 18:14:52,421 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-08 18:14:52,422 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-08 18:14:52,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 18:14:52,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:14:52,523 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:14:52,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:14:52,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:14:52,525 INFO L158 Benchmark]: Toolchain (without parser) took 3347.11ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 103.9MB in the end (delta: 3.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,525 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:14:52,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.09ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.64ms. Allocated memory is still 157.3MB. Free memory was 84.2MB in the beginning and 82.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,526 INFO L158 Benchmark]: Boogie Preprocessor took 76.88ms. Allocated memory is still 157.3MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,526 INFO L158 Benchmark]: RCFGBuilder took 693.23ms. Allocated memory is still 157.3MB. Free memory was 80.1MB in the beginning and 124.9MB in the end (delta: -44.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,527 INFO L158 Benchmark]: TraceAbstraction took 1734.81ms. Allocated memory is still 157.3MB. Free memory was 124.1MB in the beginning and 108.1MB in the end (delta: 16.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,527 INFO L158 Benchmark]: Witness Printer took 117.58ms. Allocated memory is still 157.3MB. Free memory was 108.1MB in the beginning and 103.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:14:52,529 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.09ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.64ms. Allocated memory is still 157.3MB. Free memory was 84.2MB in the beginning and 82.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.88ms. Allocated memory is still 157.3MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 693.23ms. Allocated memory is still 157.3MB. Free memory was 80.1MB in the beginning and 124.9MB in the end (delta: -44.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1734.81ms. Allocated memory is still 157.3MB. Free memory was 124.1MB in the beginning and 108.1MB in the end (delta: 16.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Witness Printer took 117.58ms. Allocated memory is still 157.3MB. Free memory was 108.1MB in the beginning and 103.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 774]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 759]: 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 5 procedures, 79 locations, 6 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 12 mSDtfsCounter, 107 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=138occurred in iteration=3, 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, 68 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:14:52,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_056e60af-3ac4-48c0-9c38-352b055c103e/bin/uautomizer-verify-jihMAELWvX/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