./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix038.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix038.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8aba011b4454b6464ed30c6424ccbb7bc43e89a3e2bf826373810de7cb8fe97a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:31:16,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:31:16,155 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:31:16,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:31:16,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:31:16,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:31:16,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:31:16,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:31:16,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:31:16,217 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:31:16,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:31:16,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:31:16,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:31:16,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:31:16,218 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:31:16,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:31:16,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:31:16,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:31:16,220 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:31:16,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:31:16,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:31:16,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:31:16,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:31:16,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:31:16,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:31:16,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:31:16,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:31:16,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:31:16,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:31:16,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:31:16,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:31:16,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:31:16,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:31:16,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:31:16,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:31:16,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:31:16,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:31:16,227 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_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd 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 ! overflow) ) 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 -> 8aba011b4454b6464ed30c6424ccbb7bc43e89a3e2bf826373810de7cb8fe97a [2024-11-13 13:31:16,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:31:16,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:31:16,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:31:16,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:31:16,676 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:31:16,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/mix038.opt.i Unable to find full path for "g++" [2024-11-13 13:31:19,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:31:19,540 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:31:19,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/sv-benchmarks/c/pthread-wmm/mix038.opt.i [2024-11-13 13:31:19,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/data/6c0dff34c/ab43b55ad8ae48f88f621355d2e749ce/FLAG0633dcefb [2024-11-13 13:31:19,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/data/6c0dff34c/ab43b55ad8ae48f88f621355d2e749ce [2024-11-13 13:31:19,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:31:19,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:31:19,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:31:19,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:31:19,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:31:19,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:19" (1/1) ... [2024-11-13 13:31:19,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3522439d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:19, skipping insertion in model container [2024-11-13 13:31:19,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:31:19" (1/1) ... [2024-11-13 13:31:19,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:31:20,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:31:20,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:31:20,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:31:20,416 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:31:20,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20 WrapperNode [2024-11-13 13:31:20,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:31:20,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:31:20,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:31:20,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:31:20,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,500 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 129 [2024-11-13 13:31:20,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:31:20,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:31:20,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:31:20,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:31:20,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,540 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]. [2024-11-13 13:31:20,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:31:20,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:31:20,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:31:20,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:31:20,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (1/1) ... [2024-11-13 13:31:20,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:31:20,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:31:20,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:31:20,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:31:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 13:31:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:31:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 13:31:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 13:31:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 13:31:20,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 13:31:20,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 13:31:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 13:31:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:31:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 13:31:20,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:31:20,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:31:20,669 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:31:20,890 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:31:20,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:31:21,366 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:31:21,366 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:31:21,767 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:31:21,768 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:31:21,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:21 BoogieIcfgContainer [2024-11-13 13:31:21,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:31:21,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:31:21,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:31:21,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:31:21,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:31:19" (1/3) ... [2024-11-13 13:31:21,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fe87de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:21, skipping insertion in model container [2024-11-13 13:31:21,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:31:20" (2/3) ... [2024-11-13 13:31:21,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fe87de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:31:21, skipping insertion in model container [2024-11-13 13:31:21,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:21" (3/3) ... [2024-11-13 13:31:21,795 INFO L112 eAbstractionObserver]: Analyzing ICFG mix038.opt.i [2024-11-13 13:31:21,826 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:31:21,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mix038.opt.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-13 13:31:21,830 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:31:21,928 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:31:21,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2024-11-13 13:31:22,056 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-11-13 13:31:22,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:31:22,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 13:31:22,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2024-11-13 13:31:22,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2024-11-13 13:31:22,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:31:22,113 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;@6acef260, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:31:22,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 13:31:22,126 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:31:22,127 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-13 13:31:22,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:31:22,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:31:22,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:22,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 13:31:22,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1352420165, now seen corresponding path program 1 times [2024-11-13 13:31:22,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:22,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140901295] [2024-11-13 13:31:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:22,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:22,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:22,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140901295] [2024-11-13 13:31:22,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140901295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:22,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:22,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:31:22,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311508665] [2024-11-13 13:31:22,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:22,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:31:22,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:22,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:31:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:31:22,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-13 13:31:22,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-13 13:31:22,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:31:22,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-13 13:31:22,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:31:23,752 INFO L124 PetriNetUnfolderBase]: 1712/2566 cut-off events. [2024-11-13 13:31:23,752 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-13 13:31:23,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5158 conditions, 2566 events. 1712/2566 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 15236 event pairs, 644 based on Foata normal form. 0/1935 useless extension candidates. Maximal degree in co-relation 5147. Up to 2471 conditions per place. [2024-11-13 13:31:23,797 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 35 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2024-11-13 13:31:23,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 52 transitions, 197 flow [2024-11-13 13:31:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:31:23,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:31:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-11-13 13:31:23,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2024-11-13 13:31:23,818 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 93 transitions. [2024-11-13 13:31:23,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 52 transitions, 197 flow [2024-11-13 13:31:23,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 13:31:23,838 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2024-11-13 13:31:23,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-11-13 13:31:23,853 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-11-13 13:31:23,856 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2024-11-13 13:31:23,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-13 13:31:23,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:31:23,857 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:23,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:31:23,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 13:31:23,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:23,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2057593216, now seen corresponding path program 1 times [2024-11-13 13:31:23,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:23,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168357859] [2024-11-13 13:31:23,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:23,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:24,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:24,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168357859] [2024-11-13 13:31:24,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168357859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:24,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:24,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:31:24,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147530339] [2024-11-13 13:31:24,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:24,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:31:24,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:24,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:31:24,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:31:24,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-13 13:31:24,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-13 13:31:24,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:31:24,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-13 13:31:24,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:31:24,919 INFO L124 PetriNetUnfolderBase]: 1109/1685 cut-off events. [2024-11-13 13:31:24,920 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-13 13:31:24,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4010 conditions, 1685 events. 1109/1685 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 9429 event pairs, 355 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 3999. Up to 1589 conditions per place. [2024-11-13 13:31:24,940 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 32 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-11-13 13:31:24,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 204 flow [2024-11-13 13:31:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:31:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:31:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-13 13:31:24,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6280487804878049 [2024-11-13 13:31:24,943 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 103 transitions. [2024-11-13 13:31:24,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 204 flow [2024-11-13 13:31:24,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:31:24,948 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 110 flow [2024-11-13 13:31:24,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2024-11-13 13:31:24,953 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-11-13 13:31:24,953 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 110 flow [2024-11-13 13:31:24,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-13 13:31:24,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:31:24,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:24,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:31:24,954 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 13:31:24,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2057593217, now seen corresponding path program 1 times [2024-11-13 13:31:24,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:24,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341603389] [2024-11-13 13:31:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:24,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:25,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:25,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341603389] [2024-11-13 13:31:25,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341603389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:25,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:25,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:31:25,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486425903] [2024-11-13 13:31:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:25,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:31:25,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:31:25,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:31:25,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-13 13:31:25,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-13 13:31:25,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:31:25,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-13 13:31:25,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:31:25,655 INFO L124 PetriNetUnfolderBase]: 752/1170 cut-off events. [2024-11-13 13:31:25,655 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-11-13 13:31:25,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2725 conditions, 1170 events. 752/1170 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6019 event pairs, 82 based on Foata normal form. 0/1095 useless extension candidates. Maximal degree in co-relation 2713. Up to 741 conditions per place. [2024-11-13 13:31:25,670 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 41 selfloop transitions, 7 changer transitions 3/64 dead transitions. [2024-11-13 13:31:25,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 64 transitions, 276 flow [2024-11-13 13:31:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:31:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:31:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-13 13:31:25,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7195121951219512 [2024-11-13 13:31:25,674 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 110 flow. Second operand 4 states and 118 transitions. [2024-11-13 13:31:25,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 64 transitions, 276 flow [2024-11-13 13:31:25,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:31:25,678 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 131 flow [2024-11-13 13:31:25,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2024-11-13 13:31:25,680 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-11-13 13:31:25,681 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 131 flow [2024-11-13 13:31:25,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2024-11-13 13:31:25,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:31:25,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:25,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:31:25,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-13 13:31:25,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1513153313, now seen corresponding path program 1 times [2024-11-13 13:31:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:31:25,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440734308] [2024-11-13 13:31:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:25,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:31:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:31:26,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:31:26,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440734308] [2024-11-13 13:31:26,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440734308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:26,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:26,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:31:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758522508] [2024-11-13 13:31:26,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:26,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:26,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:31:26,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:26,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:31:26,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-13 13:31:26,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-11-13 13:31:26,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:31:26,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-13 13:31:26,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:31:26,412 INFO L124 PetriNetUnfolderBase]: 532/850 cut-off events. [2024-11-13 13:31:26,412 INFO L125 PetriNetUnfolderBase]: For 654/654 co-relation queries the response was YES. [2024-11-13 13:31:26,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2285 conditions, 850 events. 532/850 cut-off events. For 654/654 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4415 event pairs, 32 based on Foata normal form. 60/895 useless extension candidates. Maximal degree in co-relation 2272. Up to 420 conditions per place. [2024-11-13 13:31:26,416 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-11-13 13:31:26,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 58 transitions, 255 flow [2024-11-13 13:31:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 13:31:26,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2024-11-13 13:31:26,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-11-13 13:31:26,422 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 131 flow. Second operand 5 states and 128 transitions. [2024-11-13 13:31:26,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 58 transitions, 255 flow [2024-11-13 13:31:26,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 231 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-13 13:31:26,426 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-13 13:31:26,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-13 13:31:26,427 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-11-13 13:31:26,427 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-13 13:31:26,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-11-13 13:31:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-13 13:31:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-13 13:31:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-13 13:31:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-13 13:31:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-13 13:31:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-13 13:31:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-13 13:31:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-13 13:31:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-13 13:31:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-13 13:31:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-13 13:31:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-13 13:31:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-13 13:31:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-13 13:31:26,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-13 13:31:26,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:31:26,438 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 13:31:26,446 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:31:26,446 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:31:26,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:31:26 BasicIcfg [2024-11-13 13:31:26,456 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:31:26,458 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:31:26,461 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:31:26,462 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:31:26,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:31:21" (3/4) ... [2024-11-13 13:31:26,465 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:31:26,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-13 13:31:26,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-13 13:31:26,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-13 13:31:26,478 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2024-11-13 13:31:26,479 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-13 13:31:26,479 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 13:31:26,480 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 13:31:26,594 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:31:26,595 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:31:26,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:31:26,597 INFO L158 Benchmark]: Toolchain (without parser) took 6999.11ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 90.5MB in the beginning and 72.2MB in the end (delta: 18.3MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2024-11-13 13:31:26,598 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:31:26,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 816.99ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 67.3MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:31:26,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.00ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:31:26,600 INFO L158 Benchmark]: Boogie Preprocessor took 59.48ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:31:26,600 INFO L158 Benchmark]: RCFGBuilder took 1206.85ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 68.8MB in the end (delta: -6.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-13 13:31:26,601 INFO L158 Benchmark]: TraceAbstraction took 4678.96ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 68.1MB in the beginning and 78.6MB in the end (delta: -10.5MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2024-11-13 13:31:26,601 INFO L158 Benchmark]: Witness Printer took 137.53ms. Allocated memory is still 184.5MB. Free memory was 78.6MB in the beginning and 72.2MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:31:26,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 816.99ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 67.3MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.00ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.48ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1206.85ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 68.8MB in the end (delta: -6.2MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4678.96ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 68.1MB in the beginning and 78.6MB in the end (delta: -10.5MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 137.53ms. Allocated memory is still 184.5MB. Free memory was 78.6MB in the beginning and 72.2MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 15 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 13:31:26,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa34274-a02f-47eb-ba2d-838d95a0c2bc/bin/uautomizer-verify-qhAvR1uOyd/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