./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:30:40,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:30:40,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:30:40,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:30:40,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:30:40,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:30:40,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:30:40,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:30:40,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:30:40,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:30:40,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:30:40,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:30:40,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:30:40,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:30:40,442 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:30:40,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:30:40,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:30:40,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:30:40,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:30:40,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:30:40,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:30:40,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:30:40,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:30:40,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:30:40,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:30:40,446 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:30:40,446 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:30:40,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:30:40,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:30:40,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:30:40,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:30:40,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:30:40,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:30:40,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:30:40,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:30:40,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:30:40,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:30:40,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:30:40,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:30:40,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:30:40,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:30:40,453 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:30:40,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:30:40,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:30:40,454 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 [2024-10-24 23:30:40,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:30:40,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:30:40,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:30:40,767 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:30:40,767 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:30:40,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-10-24 23:30:42,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:30:42,448 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:30:42,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-10-24 23:30:42,473 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8351d41f1/8fd5c0c548bf46199a9c03ab2db94e97/FLAGef01f737a [2024-10-24 23:30:42,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8351d41f1/8fd5c0c548bf46199a9c03ab2db94e97 [2024-10-24 23:30:42,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:30:42,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:30:42,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:30:42,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:30:42,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:30:42,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:30:42" (1/1) ... [2024-10-24 23:30:42,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54abc069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:42, skipping insertion in model container [2024-10-24 23:30:42,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:30:42" (1/1) ... [2024-10-24 23:30:42,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:30:43,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:30:43,038 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:30:43,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:30:43,151 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:30:43,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43 WrapperNode [2024-10-24 23:30:43,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:30:43,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:30:43,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:30:43,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:30:43,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,225 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2024-10-24 23:30:43,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:30:43,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:30:43,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:30:43,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:30:43,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,288 INFO L175 MemorySlicer]: Split 23 memory accesses to 2 slices as follows [2, 21]. 91 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 7 writes are split as follows [0, 7]. [2024-10-24 23:30:43,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:30:43,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:30:43,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:30:43,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:30:43,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (1/1) ... [2024-10-24 23:30:43,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:30:43,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:30:43,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 23:30:43,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 23:30:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:30:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:30:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:30:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:30:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 23:30:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:30:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 23:30:43,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 23:30:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 23:30:43,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 23:30:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 23:30:43,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 23:30:43,420 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 23:30:43,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 23:30:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:30:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:30:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 23:30:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:30:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:30:43,425 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:30:43,614 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:30:43,616 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:30:44,045 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:30:44,045 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:30:44,434 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:30:44,434 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:30:44,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:30:44 BoogieIcfgContainer [2024-10-24 23:30:44,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:30:44,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:30:44,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:30:44,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:30:44,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:30:42" (1/3) ... [2024-10-24 23:30:44,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b19ebdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:30:44, skipping insertion in model container [2024-10-24 23:30:44,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:30:43" (2/3) ... [2024-10-24 23:30:44,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b19ebdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:30:44, skipping insertion in model container [2024-10-24 23:30:44,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:30:44" (3/3) ... [2024-10-24 23:30:44,446 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2024-10-24 23:30:44,464 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:30:44,465 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-24 23:30:44,465 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:30:44,540 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 23:30:44,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 112 flow [2024-10-24 23:30:44,613 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-10-24 23:30:44,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:30:44,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 115 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-24 23:30:44,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 112 flow [2024-10-24 23:30:44,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 44 transitions, 100 flow [2024-10-24 23:30:44,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:30:44,642 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;@7113c1de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:30:44,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-24 23:30:44,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:30:44,654 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-24 23:30:44,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:30:44,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:30:44,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:30:44,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-24 23:30:44,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:30:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1857477984, now seen corresponding path program 1 times [2024-10-24 23:30:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:30:44,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352136104] [2024-10-24 23:30:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:30:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:30:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:30:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:30:45,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:30:45,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352136104] [2024-10-24 23:30:45,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352136104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:30:45,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:30:45,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 23:30:45,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223901161] [2024-10-24 23:30:45,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:30:45,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:30:45,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:30:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:30:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:30:45,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-24 23:30:45,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-10-24 23:30:45,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:30:45,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-24 23:30:45,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:30:49,244 INFO L124 PetriNetUnfolderBase]: 19313/25853 cut-off events. [2024-10-24 23:30:49,245 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2024-10-24 23:30:49,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52007 conditions, 25853 events. 19313/25853 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 2039. Compared 167510 event pairs, 8821 based on Foata normal form. 0/18346 useless extension candidates. Maximal degree in co-relation 51995. Up to 25617 conditions per place. [2024-10-24 23:30:49,444 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 47 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2024-10-24 23:30:49,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 63 transitions, 251 flow [2024-10-24 23:30:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:30:49,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:30:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-10-24 23:30:49,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-10-24 23:30:49,459 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 100 flow. Second operand 3 states and 105 transitions. [2024-10-24 23:30:49,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 63 transitions, 251 flow [2024-10-24 23:30:49,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 63 transitions, 244 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:30:49,470 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 143 flow [2024-10-24 23:30:49,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-10-24 23:30:49,479 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-24 23:30:49,480 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 143 flow [2024-10-24 23:30:49,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-10-24 23:30:49,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:30:49,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:30:49,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:30:49,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-24 23:30:49,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:30:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1154288673, now seen corresponding path program 1 times [2024-10-24 23:30:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:30:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173255422] [2024-10-24 23:30:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:30:49,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:30:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:30:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:30:49,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:30:49,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173255422] [2024-10-24 23:30:49,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173255422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:30:49,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:30:49,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:30:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443150029] [2024-10-24 23:30:49,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:30:49,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:30:49,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:30:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:30:49,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:30:49,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-24 23:30:49,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-24 23:30:49,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:30:49,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-24 23:30:49,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:30:51,790 INFO L124 PetriNetUnfolderBase]: 9919/13399 cut-off events. [2024-10-24 23:30:51,791 INFO L125 PetriNetUnfolderBase]: For 1084/1084 co-relation queries the response was YES. [2024-10-24 23:30:51,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32222 conditions, 13399 events. 9919/13399 cut-off events. For 1084/1084 co-relation queries the response was YES. Maximal size of possible extension queue 942. Compared 80143 event pairs, 3871 based on Foata normal form. 0/10956 useless extension candidates. Maximal degree in co-relation 32211. Up to 13162 conditions per place. [2024-10-24 23:30:51,896 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 43 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2024-10-24 23:30:51,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 259 flow [2024-10-24 23:30:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:30:51,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:30:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2024-10-24 23:30:51,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-10-24 23:30:51,899 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 143 flow. Second operand 4 states and 112 transitions. [2024-10-24 23:30:51,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 259 flow [2024-10-24 23:30:51,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:30:51,902 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 132 flow [2024-10-24 23:30:51,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-10-24 23:30:51,903 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-24 23:30:51,903 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 132 flow [2024-10-24 23:30:51,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-24 23:30:51,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:30:51,904 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:30:51,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:30:51,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-24 23:30:51,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:30:51,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1154288672, now seen corresponding path program 1 times [2024-10-24 23:30:51,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:30:51,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913173740] [2024-10-24 23:30:51,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:30:51,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:30:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:30:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:30:52,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:30:52,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913173740] [2024-10-24 23:30:52,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913173740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:30:52,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:30:52,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:30:52,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806793929] [2024-10-24 23:30:52,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:30:52,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:30:52,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:30:52,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:30:52,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:30:52,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-24 23:30:52,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-24 23:30:52,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:30:52,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-24 23:30:52,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:30:53,354 INFO L124 PetriNetUnfolderBase]: 6817/9349 cut-off events. [2024-10-24 23:30:53,354 INFO L125 PetriNetUnfolderBase]: For 1272/1272 co-relation queries the response was YES. [2024-10-24 23:30:53,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21975 conditions, 9349 events. 6817/9349 cut-off events. For 1272/1272 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 53009 event pairs, 1269 based on Foata normal form. 0/8250 useless extension candidates. Maximal degree in co-relation 21963. Up to 7917 conditions per place. [2024-10-24 23:30:53,414 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 60 selfloop transitions, 9 changer transitions 0/80 dead transitions. [2024-10-24 23:30:53,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 80 transitions, 360 flow [2024-10-24 23:30:53,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:30:53,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:30:53,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-10-24 23:30:53,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6927083333333334 [2024-10-24 23:30:53,416 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 132 flow. Second operand 4 states and 133 transitions. [2024-10-24 23:30:53,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 80 transitions, 360 flow [2024-10-24 23:30:53,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 80 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:30:53,421 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 184 flow [2024-10-24 23:30:53,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-10-24 23:30:53,422 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-24 23:30:53,422 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 184 flow [2024-10-24 23:30:53,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-24 23:30:53,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:30:53,423 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] [2024-10-24 23:30:53,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:30:53,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-24 23:30:53,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:30:53,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2035721509, now seen corresponding path program 1 times [2024-10-24 23:30:53,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:30:53,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115401868] [2024-10-24 23:30:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:30:53,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:30:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:30:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:30:53,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:30:53,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115401868] [2024-10-24 23:30:53,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115401868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:30:53,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:30:53,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:30:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350280432] [2024-10-24 23:30:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:30:53,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:30:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:30:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:30:53,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:30:53,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-24 23:30:53,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-10-24 23:30:53,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:30:53,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-24 23:30:53,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:30:54,431 INFO L124 PetriNetUnfolderBase]: 4729/6517 cut-off events. [2024-10-24 23:30:54,432 INFO L125 PetriNetUnfolderBase]: For 3204/3204 co-relation queries the response was YES. [2024-10-24 23:30:54,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17488 conditions, 6517 events. 4729/6517 cut-off events. For 3204/3204 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 35030 event pairs, 265 based on Foata normal form. 0/6306 useless extension candidates. Maximal degree in co-relation 17475. Up to 2833 conditions per place. [2024-10-24 23:30:54,472 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 71 selfloop transitions, 13 changer transitions 4/99 dead transitions. [2024-10-24 23:30:54,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 99 transitions, 490 flow [2024-10-24 23:30:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:30:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:30:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-10-24 23:30:54,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2024-10-24 23:30:54,474 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 184 flow. Second operand 5 states and 167 transitions. [2024-10-24 23:30:54,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 99 transitions, 490 flow [2024-10-24 23:30:54,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 99 transitions, 472 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-24 23:30:54,479 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 208 flow [2024-10-24 23:30:54,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-24 23:30:54,480 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-10-24 23:30:54,480 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 208 flow [2024-10-24 23:30:54,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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) [2024-10-24 23:30:54,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:30:54,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:30:54,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:30:54,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-10-24 23:30:54,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:30:54,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1690072687, now seen corresponding path program 1 times [2024-10-24 23:30:54,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:30:54,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144330249] [2024-10-24 23:30:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:30:54,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:30:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:30:54,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:30:54,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:30:54,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144330249] [2024-10-24 23:30:54,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144330249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:30:54,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:30:54,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:30:54,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835073728] [2024-10-24 23:30:54,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:30:54,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:30:54,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:30:54,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:30:54,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:30:54,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2024-10-24 23:30:54,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2024-10-24 23:30:54,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:30:54,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2024-10-24 23:30:54,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:30:55,819 INFO L124 PetriNetUnfolderBase]: 3913/5413 cut-off events. [2024-10-24 23:30:55,820 INFO L125 PetriNetUnfolderBase]: For 5892/5892 co-relation queries the response was YES. [2024-10-24 23:30:55,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15305 conditions, 5413 events. 3913/5413 cut-off events. For 5892/5892 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 29131 event pairs, 121 based on Foata normal form. 192/5586 useless extension candidates. Maximal degree in co-relation 15291. Up to 2252 conditions per place. [2024-10-24 23:30:55,841 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 0 selfloop transitions, 0 changer transitions 91/91 dead transitions. [2024-10-24 23:30:55,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 91 transitions, 442 flow [2024-10-24 23:30:55,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:30:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:30:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 174 transitions. [2024-10-24 23:30:55,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-10-24 23:30:55,843 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 208 flow. Second operand 6 states and 174 transitions. [2024-10-24 23:30:55,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 91 transitions, 442 flow [2024-10-24 23:30:55,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 91 transitions, 387 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-24 23:30:55,939 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-10-24 23:30:55,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-10-24 23:30:55,940 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-24 23:30:55,941 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-10-24 23:30:55,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2024-10-24 23:30:55,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-10-24 23:30:55,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-10-24 23:30:55,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-10-24 23:30:55,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-10-24 23:30:55,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-10-24 23:30:55,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-10-24 23:30:55,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-10-24 23:30:55,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-10-24 23:30:55,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2024-10-24 23:30:55,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2024-10-24 23:30:55,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-10-24 23:30:55,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-10-24 23:30:55,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-10-24 23:30:55,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-10-24 23:30:55,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-10-24 23:30:55,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-10-24 23:30:55,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-10-24 23:30:55,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-10-24 23:30:55,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-10-24 23:30:55,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-10-24 23:30:55,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:30:55,949 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 23:30:55,956 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:30:55,956 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:30:55,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:30:55 BasicIcfg [2024-10-24 23:30:55,962 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:30:55,962 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:30:55,962 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:30:55,963 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:30:55,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:30:44" (3/4) ... [2024-10-24 23:30:55,965 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:30:55,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 23:30:55,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 23:30:55,969 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 23:30:55,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-24 23:30:55,977 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-10-24 23:30:55,977 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-24 23:30:55,977 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 23:30:55,978 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 23:30:56,076 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:30:56,077 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:30:56,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:30:56,078 INFO L158 Benchmark]: Toolchain (without parser) took 13579.57ms. Allocated memory was 155.2MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 121.1MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 234.3MB. Max. memory is 16.1GB. [2024-10-24 23:30:56,078 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 104.9MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:30:56,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.90ms. Allocated memory is still 155.2MB. Free memory was 121.1MB in the beginning and 92.8MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-24 23:30:56,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.77ms. Allocated memory is still 155.2MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:30:56,079 INFO L158 Benchmark]: Boogie Preprocessor took 97.45ms. Allocated memory is still 155.2MB. Free memory was 90.7MB in the beginning and 85.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:30:56,079 INFO L158 Benchmark]: RCFGBuilder took 1107.37ms. Allocated memory is still 155.2MB. Free memory was 85.5MB in the beginning and 100.0MB in the end (delta: -14.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-10-24 23:30:56,082 INFO L158 Benchmark]: TraceAbstraction took 11523.04ms. Allocated memory was 155.2MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 99.0MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-10-24 23:30:56,082 INFO L158 Benchmark]: Witness Printer took 114.79ms. Allocated memory is still 5.2GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 23:30:56,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 104.9MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.90ms. Allocated memory is still 155.2MB. Free memory was 121.1MB in the beginning and 92.8MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.77ms. Allocated memory is still 155.2MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.45ms. Allocated memory is still 155.2MB. Free memory was 90.7MB in the beginning and 85.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1107.37ms. Allocated memory is still 155.2MB. Free memory was 85.5MB in the beginning and 100.0MB in the end (delta: -14.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11523.04ms. Allocated memory was 155.2MB in the beginning and 5.2GB in the end (delta: 5.0GB). Free memory was 99.0MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 114.79ms. Allocated memory is still 5.2GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 832]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 832]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 849]: 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 9 procedures, 87 locations, 20 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: 11.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 2 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:30:56,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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