./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi010.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi010.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB --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 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:02:24,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:02:24,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:02:24,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:02:24,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:02:24,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:02:24,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:02:24,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:02:24,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:02:24,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:02:24,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:02:24,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:02:24,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:02:24,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:02:24,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:02:24,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:02:24,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:02:24,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:02:24,767 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:02:24,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:24,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:24,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:02:24,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:02:24,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:02:24,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:02:24,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:02:24,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:02:24,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:02:24,769 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_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 [2024-11-28 03:02:25,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:02:25,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:02:25,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:02:25,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:02:25,101 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:02:25,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/rfi010.i [2024-11-28 03:02:27,981 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/data/79ef64325/a01c9c4ca5ac4d5c87bd4f308f60bd8b/FLAGb2349938f [2024-11-28 03:02:28,355 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:02:28,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/sv-benchmarks/c/pthread-wmm/rfi010.i [2024-11-28 03:02:28,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/data/79ef64325/a01c9c4ca5ac4d5c87bd4f308f60bd8b/FLAGb2349938f [2024-11-28 03:02:28,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/data/79ef64325/a01c9c4ca5ac4d5c87bd4f308f60bd8b [2024-11-28 03:02:28,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:02:28,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:02:28,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:02:28,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:02:28,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:02:28,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:28" (1/1) ... [2024-11-28 03:02:28,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed769af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:28, skipping insertion in model container [2024-11-28 03:02:28,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:28" (1/1) ... [2024-11-28 03:02:28,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:02:28,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:02:29,010 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:02:29,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:02:29,152 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:02:29,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29 WrapperNode [2024-11-28 03:02:29,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:02:29,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:02:29,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:02:29,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:02:29,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,219 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-28 03:02:29,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:02:29,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:02:29,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:02:29,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:02:29,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,261 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]. [2024-11-28 03:02:29,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,269 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:02:29,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:02:29,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:02:29,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:02:29,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (1/1) ... [2024-11-28 03:02:29,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:02:29,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:29,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:02:29,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:02:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 03:02:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:02:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 03:02:29,365 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 03:02:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 03:02:29,366 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 03:02:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:02:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 03:02:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:02:29,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:02:29,367 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:02:29,496 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:02:29,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:02:29,897 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:02:29,897 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:02:30,151 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:02:30,151 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:02:30,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:30 BoogieIcfgContainer [2024-11-28 03:02:30,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:02:30,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:02:30,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:02:30,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:02:30,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:02:28" (1/3) ... [2024-11-28 03:02:30,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550a3a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:30, skipping insertion in model container [2024-11-28 03:02:30,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:29" (2/3) ... [2024-11-28 03:02:30,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@550a3a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:30, skipping insertion in model container [2024-11-28 03:02:30,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:30" (3/3) ... [2024-11-28 03:02:30,162 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi010.i [2024-11-28 03:02:30,179 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:02:30,180 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi010.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 03:02:30,181 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:02:30,241 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:02:30,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2024-11-28 03:02:30,312 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-28 03:02:30,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:02:30,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-28 03:02:30,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow [2024-11-28 03:02:30,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow [2024-11-28 03:02:30,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:02:30,346 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;@292d8a28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:02:30,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 03:02:30,357 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:02:30,357 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-28 03:02:30,357 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:02:30,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:02:30,358 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:30,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:02:30,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:30,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1329963867, now seen corresponding path program 1 times [2024-11-28 03:02:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:30,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214354308] [2024-11-28 03:02:30,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:30,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:30,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:30,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214354308] [2024-11-28 03:02:30,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214354308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:30,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:30,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:02:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086860102] [2024-11-28 03:02:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:30,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:02:30,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:30,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:02:30,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:02:30,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-28 03:02:30,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-28 03:02:30,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:02:30,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-28 03:02:30,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:02:31,252 INFO L124 PetriNetUnfolderBase]: 225/418 cut-off events. [2024-11-28 03:02:31,253 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:02:31,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 418 events. 225/418 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1972 event pairs, 75 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 816. Up to 305 conditions per place. [2024-11-28 03:02:31,264 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 27 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2024-11-28 03:02:31,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 153 flow [2024-11-28 03:02:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:02:31,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:02:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-11-28 03:02:31,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-28 03:02:31,283 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 66 transitions. [2024-11-28 03:02:31,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 153 flow [2024-11-28 03:02:31,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:02:31,295 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2024-11-28 03:02:31,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-28 03:02:31,303 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-28 03:02:31,304 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2024-11-28 03:02:31,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-28 03:02:31,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:02:31,304 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:31,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:02:31,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:02:31,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash 589215844, now seen corresponding path program 1 times [2024-11-28 03:02:31,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:31,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355445871] [2024-11-28 03:02:31,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:31,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:31,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:31,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:31,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355445871] [2024-11-28 03:02:31,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355445871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:31,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:31,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:02:31,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815214200] [2024-11-28 03:02:31,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:31,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:31,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:31,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:31,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:31,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-28 03:02:31,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:31,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:02:31,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-28 03:02:31,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:02:31,984 INFO L124 PetriNetUnfolderBase]: 163/316 cut-off events. [2024-11-28 03:02:31,984 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-28 03:02:31,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 316 events. 163/316 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1476 event pairs, 55 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 696. Up to 202 conditions per place. [2024-11-28 03:02:31,990 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 25 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-11-28 03:02:31,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 147 flow [2024-11-28 03:02:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:02:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-28 03:02:31,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-28 03:02:31,995 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 70 transitions. [2024-11-28 03:02:31,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 147 flow [2024-11-28 03:02:31,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:02:31,998 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow [2024-11-28 03:02:31,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-28 03:02:31,999 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-28 03:02:32,000 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow [2024-11-28 03:02:32,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:32,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:02:32,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:32,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:02:32,001 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:02:32,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:32,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1391798975, now seen corresponding path program 1 times [2024-11-28 03:02:32,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:32,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374799699] [2024-11-28 03:02:32,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:02:32,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:32,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374799699] [2024-11-28 03:02:32,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374799699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:32,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:32,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:02:32,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549667892] [2024-11-28 03:02:32,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:32,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:32,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:32,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:32,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:32,283 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-28 03:02:32,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:32,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:02:32,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-28 03:02:32,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:02:32,462 INFO L124 PetriNetUnfolderBase]: 137/270 cut-off events. [2024-11-28 03:02:32,462 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2024-11-28 03:02:32,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 270 events. 137/270 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1248 event pairs, 45 based on Foata normal form. 20/287 useless extension candidates. Maximal degree in co-relation 584. Up to 156 conditions per place. [2024-11-28 03:02:32,466 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-11-28 03:02:32,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 138 flow [2024-11-28 03:02:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:02:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2024-11-28 03:02:32,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-11-28 03:02:32,469 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 68 transitions. [2024-11-28 03:02:32,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 138 flow [2024-11-28 03:02:32,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 131 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:02:32,471 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-11-28 03:02:32,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-11-28 03:02:32,472 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-11-28 03:02:32,473 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-11-28 03:02:32,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:02:32,476 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-28 03:02:32,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-28 03:02:32,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-28 03:02:32,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-28 03:02:32,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-28 03:02:32,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-28 03:02:32,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-28 03:02:32,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-28 03:02:32,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-28 03:02:32,481 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-28 03:02:32,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:02:32,481 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:02:32,488 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:02:32,489 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:02:32,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:02:32 BasicIcfg [2024-11-28 03:02:32,498 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:02:32,500 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:02:32,500 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:02:32,500 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:02:32,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:30" (3/4) ... [2024-11-28 03:02:32,503 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:02:32,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 03:02:32,506 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 03:02:32,512 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-28 03:02:32,513 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-28 03:02:32,513 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:02:32,514 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:02:32,602 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:02:32,603 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:02:32,603 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:02:32,605 INFO L158 Benchmark]: Toolchain (without parser) took 4208.93ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.1MB in the beginning and 146.7MB in the end (delta: -54.6MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2024-11-28 03:02:32,605 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:02:32,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.76ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 68.7MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:02:32,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.71ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 66.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:02:32,607 INFO L158 Benchmark]: Boogie Preprocessor took 59.23ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 63.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:02:32,608 INFO L158 Benchmark]: RCFGBuilder took 868.51ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 63.4MB in the end (delta: -383.7kB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-28 03:02:32,609 INFO L158 Benchmark]: TraceAbstraction took 2344.20ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 62.8MB in the beginning and 151.7MB in the end (delta: -88.9MB). Peak memory consumption was 145.6MB. Max. memory is 16.1GB. [2024-11-28 03:02:32,609 INFO L158 Benchmark]: Witness Printer took 103.45ms. Allocated memory is still 352.3MB. Free memory was 151.7MB in the beginning and 146.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:02:32,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.76ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 68.7MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.71ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 66.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.23ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 63.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 868.51ms. Allocated memory is still 117.4MB. Free memory was 63.0MB in the beginning and 63.4MB in the end (delta: -383.7kB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2344.20ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 62.8MB in the beginning and 151.7MB in the end (delta: -88.9MB). Peak memory consumption was 145.6MB. Max. memory is 16.1GB. * Witness Printer took 103.45ms. Allocated memory is still 352.3MB. Free memory was 151.7MB in the beginning and 146.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: 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 5 procedures, 53 locations, 10 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: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:02:32,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c9d1a2-ff94-462e-ad8d-741360557ba8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE