./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC --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 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:56:16,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:56:16,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:56:16,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:56:16,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:56:16,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:56:16,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:56:16,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:56:16,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:56:16,954 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:56:16,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:56:16,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:56:16,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:56:16,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:56:16,956 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:56:16,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:56:16,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:56:16,958 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:56:16,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:56:16,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:56:16,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:56:16,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:56:16,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:56:16,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:56:16,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:56:16,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:56:16,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:56:16,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:56:16,961 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC 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 -> 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 [2024-11-23 23:56:17,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:56:17,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:56:17,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:56:17,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:56:17,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:56:17,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-11-23 23:56:20,401 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/data/ef390fdf4/535642c7899a4828b7b313473a356968/FLAGa2ca093c4 [2024-11-23 23:56:20,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:56:20,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-11-23 23:56:20,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/data/ef390fdf4/535642c7899a4828b7b313473a356968/FLAGa2ca093c4 [2024-11-23 23:56:20,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/data/ef390fdf4/535642c7899a4828b7b313473a356968 [2024-11-23 23:56:20,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:56:20,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:56:20,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:56:20,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:56:20,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:56:20,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:56:20" (1/1) ... [2024-11-23 23:56:20,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68babec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:20, skipping insertion in model container [2024-11-23 23:56:20,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:56:20" (1/1) ... [2024-11-23 23:56:20,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:56:21,147 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_81b7c2c6-1e3d-42cd-84af-f040946f8cde/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2024-11-23 23:56:21,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:56:21,413 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:56:21,428 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_81b7c2c6-1e3d-42cd-84af-f040946f8cde/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2024-11-23 23:56:21,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:56:21,524 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:56:21,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21 WrapperNode [2024-11-23 23:56:21,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:56:21,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:56:21,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:56:21,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:56:21,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,581 INFO L138 Inliner]: procedures = 162, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2024-11-23 23:56:21,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:56:21,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:56:21,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:56:21,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:56:21,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,616 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-23 23:56:21,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,624 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:56:21,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:56:21,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:56:21,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:56:21,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (1/1) ... [2024-11-23 23:56:21,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:56:21,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:56:21,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:56:21,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:56:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:56:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:56:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 23:56:21,729 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 23:56:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:56:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:56:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:56:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:56:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:56:21,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:56:21,732 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 23:56:21,895 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:56:21,897 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:56:22,088 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:56:22,088 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:56:22,217 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:56:22,218 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:56:22,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:56:22 BoogieIcfgContainer [2024-11-23 23:56:22,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:56:22,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:56:22,221 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:56:22,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:56:22,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:56:20" (1/3) ... [2024-11-23 23:56:22,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcbed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:56:22, skipping insertion in model container [2024-11-23 23:56:22,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:56:21" (2/3) ... [2024-11-23 23:56:22,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bcbed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:56:22, skipping insertion in model container [2024-11-23 23:56:22,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:56:22" (3/3) ... [2024-11-23 23:56:22,233 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-11-23 23:56:22,250 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:56:22,251 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_40-traces-ex-6_true.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:56:22,252 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:56:22,301 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 23:56:22,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 52 flow [2024-11-23 23:56:22,396 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2024-11-23 23:56:22,400 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:56:22,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 23 events. 1/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-11-23 23:56:22,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 52 flow [2024-11-23 23:56:22,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-23 23:56:22,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:56:22,435 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;@3c912a74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:56:22,435 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:56:22,472 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:56:22,475 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-23 23:56:22,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:56:22,476 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:56:22,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:56:22,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:56:22,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:56:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1796723507, now seen corresponding path program 1 times [2024-11-23 23:56:22,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:56:22,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954026691] [2024-11-23 23:56:22,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:56:22,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:56:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:56:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:56:22,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:56:22,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954026691] [2024-11-23 23:56:22,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954026691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:56:22,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:56:22,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:56:22,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516779947] [2024-11-23 23:56:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:56:22,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:56:22,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:56:22,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:56:22,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:56:22,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-23 23:56:22,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-23 23:56:22,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:56:22,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-23 23:56:22,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:56:23,132 INFO L124 PetriNetUnfolderBase]: 38/107 cut-off events. [2024-11-23 23:56:23,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:56:23,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 107 events. 38/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 348 event pairs, 22 based on Foata normal form. 8/114 useless extension candidates. Maximal degree in co-relation 200. Up to 60 conditions per place. [2024-11-23 23:56:23,135 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 17 selfloop transitions, 3 changer transitions 8/33 dead transitions. [2024-11-23 23:56:23,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 33 transitions, 125 flow [2024-11-23 23:56:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:56:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 23:56:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2024-11-23 23:56:23,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-23 23:56:23,151 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 60 transitions. [2024-11-23 23:56:23,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 33 transitions, 125 flow [2024-11-23 23:56:23,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:56:23,162 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 57 flow [2024-11-23 23:56:23,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2024-11-23 23:56:23,168 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2024-11-23 23:56:23,169 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 57 flow [2024-11-23 23:56:23,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-23 23:56:23,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:56:23,169 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:56:23,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:56:23,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:56:23,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:56:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 62930284, now seen corresponding path program 1 times [2024-11-23 23:56:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:56:23,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441025290] [2024-11-23 23:56:23,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:56:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:56:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:56:23,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:56:23,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:56:23,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441025290] [2024-11-23 23:56:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441025290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:56:23,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:56:23,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:56:23,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461051928] [2024-11-23 23:56:23,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:56:23,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:56:23,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:56:23,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:56:23,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:56:23,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 24 [2024-11-23 23:56:23,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-23 23:56:23,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:56:23,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 24 [2024-11-23 23:56:23,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:56:23,644 INFO L124 PetriNetUnfolderBase]: 12/62 cut-off events. [2024-11-23 23:56:23,644 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-23 23:56:23,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 62 events. 12/62 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 5 based on Foata normal form. 7/69 useless extension candidates. Maximal degree in co-relation 122. Up to 32 conditions per place. [2024-11-23 23:56:23,645 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 9 selfloop transitions, 5 changer transitions 2/22 dead transitions. [2024-11-23 23:56:23,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 93 flow [2024-11-23 23:56:23,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:56:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:56:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2024-11-23 23:56:23,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-23 23:56:23,647 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 57 flow. Second operand 4 states and 50 transitions. [2024-11-23 23:56:23,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 93 flow [2024-11-23 23:56:23,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 83 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-23 23:56:23,649 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 57 flow [2024-11-23 23:56:23,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2024-11-23 23:56:23,651 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2024-11-23 23:56:23,651 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 57 flow [2024-11-23 23:56:23,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-23 23:56:23,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:56:23,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:56:23,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:56:23,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:56:23,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:56:23,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2122913388, now seen corresponding path program 2 times [2024-11-23 23:56:23,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:56:23,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830117381] [2024-11-23 23:56:23,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:56:23,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:56:23,679 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:56:23,680 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:56:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:56:23,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:56:23,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830117381] [2024-11-23 23:56:23,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830117381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:56:23,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:56:23,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:56:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078476527] [2024-11-23 23:56:23,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:56:23,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:56:23,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:56:23,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:56:23,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:56:23,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 24 [2024-11-23 23:56:23,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 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) [2024-11-23 23:56:23,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:56:23,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 24 [2024-11-23 23:56:23,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:56:24,068 INFO L124 PetriNetUnfolderBase]: 10/45 cut-off events. [2024-11-23 23:56:24,070 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-23 23:56:24,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 45 events. 10/45 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 6 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 91. Up to 22 conditions per place. [2024-11-23 23:56:24,071 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-11-23 23:56:24,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 89 flow [2024-11-23 23:56:24,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:56:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:56:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2024-11-23 23:56:24,073 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2024-11-23 23:56:24,073 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 57 flow. Second operand 4 states and 49 transitions. [2024-11-23 23:56:24,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 89 flow [2024-11-23 23:56:24,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 23:56:24,074 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-11-23 23:56:24,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-11-23 23:56:24,075 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2024-11-23 23:56:24,075 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-11-23 23:56:24,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 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) [2024-11-23 23:56:24,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-23 23:56:24,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-23 23:56:24,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:56:24,081 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-23 23:56:24,085 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 23:56:24,085 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:56:24,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:56:24 BasicIcfg [2024-11-23 23:56:24,093 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:56:24,094 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:56:24,094 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:56:24,094 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:56:24,095 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:56:22" (3/4) ... [2024-11-23 23:56:24,097 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:56:24,101 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-23 23:56:24,105 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-23 23:56:24,105 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-23 23:56:24,105 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:56:24,105 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:56:24,191 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:56:24,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:56:24,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:56:24,193 INFO L158 Benchmark]: Toolchain (without parser) took 3315.45ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 93.0MB in the beginning and 258.7MB in the end (delta: -165.7MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-11-23 23:56:24,194 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:56:24,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.80ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 72.9MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:56:24,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.92ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:56:24,195 INFO L158 Benchmark]: Boogie Preprocessor took 56.57ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:56:24,195 INFO L158 Benchmark]: RCFGBuilder took 578.54ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 47.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:56:24,195 INFO L158 Benchmark]: TraceAbstraction took 1872.24ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 46.9MB in the beginning and 263.0MB in the end (delta: -216.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:56:24,195 INFO L158 Benchmark]: Witness Printer took 98.19ms. Allocated memory is still 327.2MB. Free memory was 263.0MB in the beginning and 258.7MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:56:24,199 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.80ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 72.9MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.92ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.57ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 578.54ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 47.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1872.24ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 46.9MB in the beginning and 263.0MB in the end (delta: -216.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.19ms. Allocated memory is still 327.2MB. Free memory was 263.0MB in the beginning and 258.7MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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 3 procedures, 35 locations, 2 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=1, InterpolantAutomatonStates: 13, 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, 0.9s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 23:56:24,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b7c2c6-1e3d-42cd-84af-f040946f8cde/bin/uautomizer-verify-LYvppIcaGC/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