./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/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_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/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_48c32f24-6556-4523-ad05-36b1f07f1cad/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 b046eb92ec2f4af5c767436762d7e86376926c2222092f8f03ea795d781fd943 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:29:30,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:29:30,729 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:29:30,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:29:30,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:29:30,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:29:30,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:29:30,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:29:30,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:29:30,758 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:29:30,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:29:30,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:29:30,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:29:30,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:29:30,759 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:29:30,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:29:30,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:29:30,759 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:29:30,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:29:30,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:29:30,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:29:30,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:29:30,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:29:30,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:29:30,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:29:30,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:29:30,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:29:30,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:29:30,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:29:30,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:29:30,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:29:30,764 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_48c32f24-6556-4523-ad05-36b1f07f1cad/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 -> b046eb92ec2f4af5c767436762d7e86376926c2222092f8f03ea795d781fd943 [2024-11-13 13:29:31,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:29:31,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:29:31,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:29:31,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:29:31,100 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:29:31,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i Unable to find full path for "g++" [2024-11-13 13:29:33,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:29:33,473 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:29:33,480 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/sv-benchmarks/c/pthread-wmm/safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-13 13:29:33,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/data/b9f264515/03af24e6da5644aea9ba5727689bdf57/FLAG2cab498d5 [2024-11-13 13:29:33,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/data/b9f264515/03af24e6da5644aea9ba5727689bdf57 [2024-11-13 13:29:33,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:29:33,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:29:33,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:29:33,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:29:33,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:29:33,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:33" (1/1) ... [2024-11-13 13:29:33,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a92f5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:33, skipping insertion in model container [2024-11-13 13:29:33,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:33" (1/1) ... [2024-11-13 13:29:33,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:29:34,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:29:34,077 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:29:34,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:29:34,235 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:29:34,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34 WrapperNode [2024-11-13 13:29:34,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:29:34,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:29:34,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:29:34,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:29:34,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,300 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2024-11-13 13:29:34,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:29:34,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:29:34,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:29:34,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:29:34,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,340 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 13:29:34,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:29:34,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:29:34,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:29:34,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:29:34,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (1/1) ... [2024-11-13 13:29:34,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:29:34,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:29:34,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:29:34,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:29:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 13:29:34,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:29:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 13:29:34,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 13:29:34,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 13:29:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 13:29:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 13:29:34,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 13:29:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:29:34,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 13:29:34,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:29:34,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:29:34,442 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 13:29:34,590 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:29:34,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:29:34,974 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:29:34,974 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:29:35,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:29:35,260 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:29:35,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:35 BoogieIcfgContainer [2024-11-13 13:29:35,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:29:35,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:29:35,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:29:35,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:29:35,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:29:33" (1/3) ... [2024-11-13 13:29:35,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b11897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:35, skipping insertion in model container [2024-11-13 13:29:35,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:34" (2/3) ... [2024-11-13 13:29:35,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b11897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:35, skipping insertion in model container [2024-11-13 13:29:35,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:35" (3/3) ... [2024-11-13 13:29:35,272 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-13 13:29:35,294 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:29:35,296 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe017_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-13 13:29:35,296 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:29:35,372 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:29:35,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2024-11-13 13:29:35,460 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-11-13 13:29:35,463 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:29:35,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 87 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 13:29:35,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2024-11-13 13:29:35,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2024-11-13 13:29:35,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:29:35,499 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;@36724772, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:29:35,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 13:29:35,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:29:35,514 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-13 13:29:35,515 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:29:35,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:29:35,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:35,516 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 13:29:35,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1283370337, now seen corresponding path program 1 times [2024-11-13 13:29:35,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:35,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199422196] [2024-11-13 13:29:35,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:35,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:35,919 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 13:29:35,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:35,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199422196] [2024-11-13 13:29:35,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199422196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:35,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:35,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:29:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275581287] [2024-11-13 13:29:35,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:35,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:35,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:35,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:35,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:35,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-13 13:29:35,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:29:35,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:29:35,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-13 13:29:35,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:29:36,943 INFO L124 PetriNetUnfolderBase]: 2503/3712 cut-off events. [2024-11-13 13:29:36,943 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-13 13:29:36,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7459 conditions, 3712 events. 2503/3712 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 20464 event pairs, 895 based on Foata normal form. 0/2899 useless extension candidates. Maximal degree in co-relation 7448. Up to 3457 conditions per place. [2024-11-13 13:29:37,015 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 39 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-13 13:29:37,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 203 flow [2024-11-13 13:29:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:37,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:29:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-11-13 13:29:37,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7192982456140351 [2024-11-13 13:29:37,031 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 82 transitions. [2024-11-13 13:29:37,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 203 flow [2024-11-13 13:29:37,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 51 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 13:29:37,041 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2024-11-13 13:29:37,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-11-13 13:29:37,047 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2024-11-13 13:29:37,047 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2024-11-13 13:29:37,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:29:37,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:29:37,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:37,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:29:37,048 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 13:29:37,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash -583421135, now seen corresponding path program 1 times [2024-11-13 13:29:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971308736] [2024-11-13 13:29:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:37,306 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 13:29:37,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:37,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971308736] [2024-11-13 13:29:37,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971308736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:37,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:37,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:29:37,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614703679] [2024-11-13 13:29:37,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:37,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:37,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:37,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:37,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:37,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-13 13:29:37,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 13:29:37,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:29:37,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-13 13:29:37,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:29:37,913 INFO L124 PetriNetUnfolderBase]: 1715/2568 cut-off events. [2024-11-13 13:29:37,913 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-11-13 13:29:37,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6019 conditions, 2568 events. 1715/2568 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13639 event pairs, 537 based on Foata normal form. 0/2221 useless extension candidates. Maximal degree in co-relation 6008. Up to 2312 conditions per place. [2024-11-13 13:29:37,934 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 36 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2024-11-13 13:29:37,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 210 flow [2024-11-13 13:29:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:29:37,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-13 13:29:37,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5723684210526315 [2024-11-13 13:29:37,937 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 87 transitions. [2024-11-13 13:29:37,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 210 flow [2024-11-13 13:29:37,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:29:37,943 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2024-11-13 13:29:37,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-13 13:29:37,946 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2024-11-13 13:29:37,947 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2024-11-13 13:29:37,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 13:29:37,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:29:37,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:37,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:29:37,948 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 13:29:37,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -583421134, now seen corresponding path program 1 times [2024-11-13 13:29:37,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:37,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692085632] [2024-11-13 13:29:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:37,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:38,149 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 13:29:38,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:38,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692085632] [2024-11-13 13:29:38,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692085632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:38,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:38,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:29:38,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211196971] [2024-11-13 13:29:38,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:38,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:38,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:38,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:38,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:38,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-13 13:29:38,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 13:29:38,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:29:38,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-13 13:29:38,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:29:38,595 INFO L124 PetriNetUnfolderBase]: 1227/1868 cut-off events. [2024-11-13 13:29:38,595 INFO L125 PetriNetUnfolderBase]: For 428/428 co-relation queries the response was YES. [2024-11-13 13:29:38,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4292 conditions, 1868 events. 1227/1868 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9577 event pairs, 187 based on Foata normal form. 0/1772 useless extension candidates. Maximal degree in co-relation 4280. Up to 985 conditions per place. [2024-11-13 13:29:38,606 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 47 selfloop transitions, 7 changer transitions 3/65 dead transitions. [2024-11-13 13:29:38,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 65 transitions, 290 flow [2024-11-13 13:29:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:29:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2024-11-13 13:29:38,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2024-11-13 13:29:38,609 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 4 states and 104 transitions. [2024-11-13 13:29:38,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 65 transitions, 290 flow [2024-11-13 13:29:38,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 285 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:29:38,614 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 125 flow [2024-11-13 13:29:38,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2024-11-13 13:29:38,614 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2024-11-13 13:29:38,615 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 125 flow [2024-11-13 13:29:38,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 13:29:38,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:29:38,615 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] [2024-11-13 13:29:38,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:29:38,615 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 13:29:38,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:38,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2139233375, now seen corresponding path program 1 times [2024-11-13 13:29:38,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:38,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808470408] [2024-11-13 13:29:38,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:38,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:38,845 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 13:29:38,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:38,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808470408] [2024-11-13 13:29:38,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808470408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:38,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:38,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:38,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678026711] [2024-11-13 13:29:38,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:38,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:29:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:38,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:29:38,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:29:38,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-13 13:29:38,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 13:29:38,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:29:38,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-13 13:29:38,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:29:39,229 INFO L124 PetriNetUnfolderBase]: 959/1480 cut-off events. [2024-11-13 13:29:39,229 INFO L125 PetriNetUnfolderBase]: For 990/990 co-relation queries the response was YES. [2024-11-13 13:29:39,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3833 conditions, 1480 events. 959/1480 cut-off events. For 990/990 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 7982 event pairs, 127 based on Foata normal form. 72/1528 useless extension candidates. Maximal degree in co-relation 3820. Up to 628 conditions per place. [2024-11-13 13:29:39,234 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2024-11-13 13:29:39,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 59 transitions, 269 flow [2024-11-13 13:29:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:29:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 13:29:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-11-13 13:29:39,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5736842105263158 [2024-11-13 13:29:39,237 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 125 flow. Second operand 5 states and 109 transitions. [2024-11-13 13:29:39,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 59 transitions, 269 flow [2024-11-13 13:29:39,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 245 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-13 13:29:39,241 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-11-13 13:29:39,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-11-13 13:29:39,242 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-11-13 13:29:39,242 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-11-13 13:29:39,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 13:29:39,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-13 13:29:39,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-13 13:29:39,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-13 13:29:39,246 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-13 13:29:39,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-13 13:29:39,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-13 13:29:39,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:29:39,248 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 13:29:39,255 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:29:39,255 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:29:39,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:29:39 BasicIcfg [2024-11-13 13:29:39,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:29:39,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:29:39,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:29:39,264 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:29:39,265 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:35" (3/4) ... [2024-11-13 13:29:39,267 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:29:39,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-13 13:29:39,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-13 13:29:39,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-13 13:29:39,278 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-13 13:29:39,278 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-13 13:29:39,278 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 13:29:39,279 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 13:29:39,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:29:39,371 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:29:39,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:29:39,372 INFO L158 Benchmark]: Toolchain (without parser) took 5842.42ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 115.7MB in the beginning and 255.6MB in the end (delta: -139.9MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-13 13:29:39,372 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:29:39,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.15ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 92.5MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:29:39,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.86ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 90.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:29:39,373 INFO L158 Benchmark]: Boogie Preprocessor took 58.43ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 86.9MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:29:39,373 INFO L158 Benchmark]: RCFGBuilder took 897.15ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 102.2MB in the end (delta: -15.3MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-11-13 13:29:39,374 INFO L158 Benchmark]: TraceAbstraction took 3999.73ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 102.2MB in the beginning and 261.5MB in the end (delta: -159.3MB). Peak memory consumption was 142.3MB. Max. memory is 16.1GB. [2024-11-13 13:29:39,375 INFO L158 Benchmark]: Witness Printer took 107.83ms. Allocated memory is still 327.2MB. Free memory was 261.5MB in the beginning and 255.6MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:29:39,378 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.15ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 92.5MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.86ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 90.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.43ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 86.9MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 897.15ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 102.2MB in the end (delta: -15.3MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3999.73ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 102.2MB in the beginning and 261.5MB in the end (delta: -159.3MB). Peak memory consumption was 142.3MB. Max. memory is 16.1GB. * Witness Printer took 107.83ms. Allocated memory is still 327.2MB. Free memory was 261.5MB in the beginning and 255.6MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 778]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: 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, 68 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: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 270 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 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 13:29:39,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c32f24-6556-4523-ad05-36b1f07f1cad/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