./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.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 a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:50:41,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:50:41,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:50:41,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:50:41,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:50:41,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:50:41,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:50:41,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:50:41,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:50:41,198 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:50:41,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:50:41,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:50:41,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:50:41,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:50:41,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:50:41,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:50:41,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:50:41,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:50:41,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:50:41,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:50:41,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:50:41,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:50:41,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:50:41,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:50:41,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:50:41,209 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:50:41,210 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:50:41,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:50:41,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:50:41,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:50:41,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:50:41,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:50:41,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:50:41,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:50:41,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:50:41,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:50:41,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:50:41,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:50:41,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:50:41,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:50:41,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:50:41,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:50:41,213 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:50:41,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:50:41,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2024-11-23 01:50:41,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:50:41,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:50:41,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:50:41,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:50:41,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:50:41,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-11-23 01:50:42,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:50:42,925 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:50:42,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-11-23 01:50:42,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bf66800/5b26a6ae2be8494f9780624b9a38394c/FLAG3791b37da [2024-11-23 01:50:43,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51bf66800/5b26a6ae2be8494f9780624b9a38394c [2024-11-23 01:50:43,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:50:43,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:50:43,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:50:43,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:50:43,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:50:43,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214fa024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43, skipping insertion in model container [2024-11-23 01:50:43,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:50:43,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:50:43,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:50:43,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:50:43,702 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:50:43,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43 WrapperNode [2024-11-23 01:50:43,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:50:43,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:50:43,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:50:43,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:50:43,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,746 INFO L138 Inliner]: procedures = 162, calls = 43, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 88 [2024-11-23 01:50:43,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:50:43,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:50:43,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:50:43,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:50:43,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,782 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-23 01:50:43,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:50:43,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:50:43,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:50:43,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:50:43,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (1/1) ... [2024-11-23 01:50:43,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:50:43,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:50:43,835 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) [2024-11-23 01:50:43,840 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 [2024-11-23 01:50:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-23 01:50:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 01:50:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:50:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:50:43,882 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:50:43,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:50:43,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:50:44,147 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:50:44,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:50:44,273 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:50:44,276 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 01:50:44,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:44 BoogieIcfgContainer [2024-11-23 01:50:44,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:50:44,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:50:44,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:50:44,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:50:44,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:43" (1/3) ... [2024-11-23 01:50:44,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c640d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:44, skipping insertion in model container [2024-11-23 01:50:44,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:43" (2/3) ... [2024-11-23 01:50:44,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c640d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:44, skipping insertion in model container [2024-11-23 01:50:44,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:44" (3/3) ... [2024-11-23 01:50:44,285 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-11-23 01:50:44,297 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:50:44,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-23 01:50:44,298 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:50:44,368 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-23 01:50:44,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 43 transitions, 93 flow [2024-11-23 01:50:44,426 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-11-23 01:50:44,427 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 01:50:44,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 42 events. 0/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-23 01:50:44,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 43 transitions, 93 flow [2024-11-23 01:50:44,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 35 transitions, 73 flow [2024-11-23 01:50:44,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:50:44,449 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;@5ee4cfaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:50:44,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-23 01:50:44,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:50:44,454 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-23 01:50:44,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:44,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:44,455 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:44,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-23 01:50:44,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1704066528, now seen corresponding path program 1 times [2024-11-23 01:50:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:44,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120775780] [2024-11-23 01:50:44,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:44,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:44,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:44,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120775780] [2024-11-23 01:50:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120775780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:44,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:44,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:50:44,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100929718] [2024-11-23 01:50:44,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:44,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:50:44,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:44,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:50:44,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:50:44,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-23 01:50:44,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:44,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:44,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-23 01:50:44,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:44,950 INFO L124 PetriNetUnfolderBase]: 85/290 cut-off events. [2024-11-23 01:50:44,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:50:44,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 290 events. 85/290 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1364 event pairs, 22 based on Foata normal form. 12/288 useless extension candidates. Maximal degree in co-relation 484. Up to 89 conditions per place. [2024-11-23 01:50:44,958 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 41 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2024-11-23 01:50:44,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 58 transitions, 209 flow [2024-11-23 01:50:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:50:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:50:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-23 01:50:44,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.622093023255814 [2024-11-23 01:50:44,970 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 73 flow. Second operand 4 states and 107 transitions. [2024-11-23 01:50:44,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 58 transitions, 209 flow [2024-11-23 01:50:44,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 58 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:50:44,976 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 83 flow [2024-11-23 01:50:44,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2024-11-23 01:50:44,982 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2024-11-23 01:50:44,982 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 83 flow [2024-11-23 01:50:44,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:44,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:44,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:44,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:50:44,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-23 01:50:44,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:44,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1675557244, now seen corresponding path program 1 times [2024-11-23 01:50:44,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:44,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581634401] [2024-11-23 01:50:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:44,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:45,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581634401] [2024-11-23 01:50:45,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581634401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:45,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:45,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:50:45,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55570567] [2024-11-23 01:50:45,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:45,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:50:45,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:45,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:50:45,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:50:45,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-23 01:50:45,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:45,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:45,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-23 01:50:45,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:45,338 INFO L124 PetriNetUnfolderBase]: 83/248 cut-off events. [2024-11-23 01:50:45,338 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-23 01:50:45,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 248 events. 83/248 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1070 event pairs, 22 based on Foata normal form. 17/263 useless extension candidates. Maximal degree in co-relation 464. Up to 66 conditions per place. [2024-11-23 01:50:45,341 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 48 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2024-11-23 01:50:45,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 244 flow [2024-11-23 01:50:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:50:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:50:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-11-23 01:50:45,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5155038759689923 [2024-11-23 01:50:45,345 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 83 flow. Second operand 6 states and 133 transitions. [2024-11-23 01:50:45,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 244 flow [2024-11-23 01:50:45,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 63 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:50:45,348 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 78 flow [2024-11-23 01:50:45,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=78, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2024-11-23 01:50:45,349 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2024-11-23 01:50:45,349 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 78 flow [2024-11-23 01:50:45,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:45,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:50:45,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:50:45,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 01:50:45,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-23 01:50:45,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:50:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash -402666629, now seen corresponding path program 1 times [2024-11-23 01:50:45,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:50:45,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132243791] [2024-11-23 01:50:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:50:45,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:50:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:50:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:50:45,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:50:45,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132243791] [2024-11-23 01:50:45,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132243791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:50:45,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:50:45,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:50:45,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776144518] [2024-11-23 01:50:45,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:50:45,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:50:45,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:50:45,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:50:45,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:50:45,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-23 01:50:45,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:45,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:50:45,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-23 01:50:45,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:50:45,575 INFO L124 PetriNetUnfolderBase]: 73/226 cut-off events. [2024-11-23 01:50:45,575 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-23 01:50:45,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 226 events. 73/226 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 970 event pairs, 22 based on Foata normal form. 12/236 useless extension candidates. Maximal degree in co-relation 432. Up to 66 conditions per place. [2024-11-23 01:50:45,576 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-11-23 01:50:45,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 242 flow [2024-11-23 01:50:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:50:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:50:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-23 01:50:45,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-11-23 01:50:45,580 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 78 flow. Second operand 6 states and 130 transitions. [2024-11-23 01:50:45,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 242 flow [2024-11-23 01:50:45,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 235 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 01:50:45,581 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-11-23 01:50:45,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-11-23 01:50:45,583 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2024-11-23 01:50:45,583 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-11-23 01:50:45,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:50:45,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-23 01:50:45,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-23 01:50:45,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-23 01:50:45,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-23 01:50:45,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-23 01:50:45,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-23 01:50:45,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-23 01:50:45,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-23 01:50:45,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-23 01:50:45,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:50:45,590 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 01:50:45,597 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 01:50:45,597 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 01:50:45,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:50:45 BasicIcfg [2024-11-23 01:50:45,603 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 01:50:45,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 01:50:45,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 01:50:45,605 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 01:50:45,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:44" (3/4) ... [2024-11-23 01:50:45,607 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 01:50:45,609 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-23 01:50:45,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-23 01:50:45,614 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 01:50:45,614 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 01:50:45,614 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 01:50:45,683 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 01:50:45,684 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 01:50:45,684 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 01:50:45,685 INFO L158 Benchmark]: Toolchain (without parser) took 2414.29ms. Allocated memory is still 190.8MB. Free memory was 161.9MB in the beginning and 120.6MB in the end (delta: 41.3MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-23 01:50:45,685 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 130.0MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:50:45,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.54ms. Allocated memory is still 190.8MB. Free memory was 161.9MB in the beginning and 139.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-23 01:50:45,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.03ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 137.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:50:45,686 INFO L158 Benchmark]: Boogie Preprocessor took 50.47ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 135.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:50:45,686 INFO L158 Benchmark]: RCFGBuilder took 478.11ms. Allocated memory is still 190.8MB. Free memory was 135.5MB in the beginning and 98.2MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-23 01:50:45,686 INFO L158 Benchmark]: TraceAbstraction took 1324.87ms. Allocated memory is still 190.8MB. Free memory was 97.7MB in the beginning and 124.8MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:50:45,686 INFO L158 Benchmark]: Witness Printer took 79.55ms. Allocated memory is still 190.8MB. Free memory was 124.8MB in the beginning and 120.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 01:50:45,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 130.0MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.54ms. Allocated memory is still 190.8MB. Free memory was 161.9MB in the beginning and 139.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.03ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 137.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.47ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 135.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.11ms. Allocated memory is still 190.8MB. Free memory was 135.5MB in the beginning and 98.2MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1324.87ms. Allocated memory is still 190.8MB. Free memory was 97.7MB in the beginning and 124.8MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 79.55ms. Allocated memory is still 190.8MB. Free memory was 124.8MB in the beginning and 120.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: 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 3 procedures, 67 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 4 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=1, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 01:50:45,709 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