./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/mix036.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/mix036.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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:28:18,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:28:18,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:28:18,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:28:18,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:28:18,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:28:18,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:28:18,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:28:18,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:28:18,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:28:18,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:28:18,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:28:18,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:28:18,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:28:18,239 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:28:18,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:28:18,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:28:18,239 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:28:18,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:28:18,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:28:18,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:28:18,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:28:18,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:28:18,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:28:18,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:28:18,243 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:28:18,243 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:28:18,243 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:28:18,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:28:18,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:28:18,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:28:18,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:28:18,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:28:18,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:28:18,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:28:18,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:28:18,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:28:18,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:28:18,254 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:28:18,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:28:18,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:28:18,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:28:18,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:28:18,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:28:18,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2024-10-24 23:28:18,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:28:18,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:28:18,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:28:18,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:28:18,476 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:28:18,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2024-10-24 23:28:19,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:28:19,940 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:28:19,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2024-10-24 23:28:19,952 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c90f629/d2b7e8e489204dd5a51c7e298be72ce9/FLAGd55a86d19 [2024-10-24 23:28:19,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c90f629/d2b7e8e489204dd5a51c7e298be72ce9 [2024-10-24 23:28:19,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:28:19,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:28:19,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:28:19,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:28:19,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:28:19,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:28:19" (1/1) ... [2024-10-24 23:28:19,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2729082e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:19, skipping insertion in model container [2024-10-24 23:28:19,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:28:19" (1/1) ... [2024-10-24 23:28:20,007 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:28:20,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:28:20,347 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:28:20,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:28:20,424 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:28:20,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20 WrapperNode [2024-10-24 23:28:20,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:28:20,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:28:20,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:28:20,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:28:20,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,481 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 136 [2024-10-24 23:28:20,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:28:20,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:28:20,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:28:20,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:28:20,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,517 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 23:28:20,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:28:20,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:28:20,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:28:20,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:28:20,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (1/1) ... [2024-10-24 23:28:20,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:28:20,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:28:20,571 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 23:28:20,573 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 23:28:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 23:28:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:28:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 23:28:20,612 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 23:28:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 23:28:20,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 23:28:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 23:28:20,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 23:28:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 23:28:20,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 23:28:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:28:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 23:28:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:28:20,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:28:20,616 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 23:28:20,733 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:28:20,735 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:28:20,985 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:28:20,985 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:28:21,168 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:28:21,168 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:28:21,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:28:21 BoogieIcfgContainer [2024-10-24 23:28:21,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:28:21,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:28:21,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:28:21,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:28:21,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:28:19" (1/3) ... [2024-10-24 23:28:21,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b9e028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:28:21, skipping insertion in model container [2024-10-24 23:28:21,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:28:20" (2/3) ... [2024-10-24 23:28:21,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b9e028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:28:21, skipping insertion in model container [2024-10-24 23:28:21,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:28:21" (3/3) ... [2024-10-24 23:28:21,174 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2024-10-24 23:28:21,185 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:28:21,185 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-24 23:28:21,185 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:28:21,226 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 23:28:21,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 120 flow [2024-10-24 23:28:21,270 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-10-24 23:28:21,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:28:21,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-24 23:28:21,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 52 transitions, 120 flow [2024-10-24 23:28:21,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 48 transitions, 108 flow [2024-10-24 23:28:21,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:28:21,287 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;@341b74dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:28:21,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-24 23:28:21,294 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:28:21,294 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-24 23:28:21,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:28:21,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:28:21,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:28:21,295 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 23:28:21,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:28:21,299 INFO L85 PathProgramCache]: Analyzing trace with hash 202641420, now seen corresponding path program 1 times [2024-10-24 23:28:21,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:28:21,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738742449] [2024-10-24 23:28:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:28:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:28:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:28:21,589 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 23:28:21,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:28:21,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738742449] [2024-10-24 23:28:21,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738742449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:28:21,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:28:21,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 23:28:21,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792439114] [2024-10-24 23:28:21,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:28:21,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:28:21,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:28:21,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:28:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:28:21,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-10-24 23:28:21,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 23:28:21,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:28:21,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-10-24 23:28:21,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:28:24,201 INFO L124 PetriNetUnfolderBase]: 22099/29659 cut-off events. [2024-10-24 23:28:24,201 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-10-24 23:28:24,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59635 conditions, 29659 events. 22099/29659 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 1574. Compared 184574 event pairs, 9017 based on Foata normal form. 0/21717 useless extension candidates. Maximal degree in co-relation 59623. Up to 28869 conditions per place. [2024-10-24 23:28:24,416 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 49 selfloop transitions, 5 changer transitions 0/68 dead transitions. [2024-10-24 23:28:24,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 265 flow [2024-10-24 23:28:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:28:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:28:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-10-24 23:28:24,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2024-10-24 23:28:24,427 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 108 flow. Second operand 3 states and 116 transitions. [2024-10-24 23:28:24,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 265 flow [2024-10-24 23:28:24,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:28:24,437 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 151 flow [2024-10-24 23:28:24,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-10-24 23:28:24,442 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-10-24 23:28:24,443 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 151 flow [2024-10-24 23:28:24,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 23:28:24,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:28:24,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:28:24,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:28:24,444 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 23:28:24,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:28:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash 530620083, now seen corresponding path program 1 times [2024-10-24 23:28:24,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:28:24,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860471865] [2024-10-24 23:28:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:28:24,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:28:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:28:24,553 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 23:28:24,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:28:24,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860471865] [2024-10-24 23:28:24,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860471865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:28:24,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:28:24,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:28:24,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674109331] [2024-10-24 23:28:24,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:28:24,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:28:24,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:28:24,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:28:24,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:28:24,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-10-24 23:28:24,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:28:24,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:28:24,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-10-24 23:28:24,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:28:26,306 INFO L124 PetriNetUnfolderBase]: 12417/16813 cut-off events. [2024-10-24 23:28:26,307 INFO L125 PetriNetUnfolderBase]: For 1233/1233 co-relation queries the response was YES. [2024-10-24 23:28:26,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39650 conditions, 16813 events. 12417/16813 cut-off events. For 1233/1233 co-relation queries the response was YES. Maximal size of possible extension queue 926. Compared 101302 event pairs, 4275 based on Foata normal form. 0/13977 useless extension candidates. Maximal degree in co-relation 39639. Up to 16022 conditions per place. [2024-10-24 23:28:26,379 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 45 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-10-24 23:28:26,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 273 flow [2024-10-24 23:28:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:28:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:28:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-10-24 23:28:26,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6057692307692307 [2024-10-24 23:28:26,381 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 151 flow. Second operand 4 states and 126 transitions. [2024-10-24 23:28:26,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 273 flow [2024-10-24 23:28:26,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:28:26,384 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 140 flow [2024-10-24 23:28:26,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2024-10-24 23:28:26,385 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-24 23:28:26,385 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 140 flow [2024-10-24 23:28:26,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:28:26,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:28:26,385 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:28:26,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:28:26,386 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 23:28:26,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:28:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash 530620084, now seen corresponding path program 1 times [2024-10-24 23:28:26,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:28:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077721417] [2024-10-24 23:28:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:28:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:28:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:28:26,475 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 23:28:26,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:28:26,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077721417] [2024-10-24 23:28:26,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077721417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:28:26,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:28:26,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:28:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197961883] [2024-10-24 23:28:26,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:28:26,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:28:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:28:26,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:28:26,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:28:26,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-10-24 23:28:26,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:28:26,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:28:26,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-10-24 23:28:26,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:28:27,405 INFO L124 PetriNetUnfolderBase]: 8671/11911 cut-off events. [2024-10-24 23:28:27,405 INFO L125 PetriNetUnfolderBase]: For 1746/1746 co-relation queries the response was YES. [2024-10-24 23:28:27,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27479 conditions, 11911 events. 8671/11911 cut-off events. For 1746/1746 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 69962 event pairs, 1503 based on Foata normal form. 0/10689 useless extension candidates. Maximal degree in co-relation 27467. Up to 8721 conditions per place. [2024-10-24 23:28:27,458 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 63 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2024-10-24 23:28:27,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 378 flow [2024-10-24 23:28:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:28:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:28:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-10-24 23:28:27,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2024-10-24 23:28:27,461 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 140 flow. Second operand 4 states and 148 transitions. [2024-10-24 23:28:27,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 378 flow [2024-10-24 23:28:27,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:28:27,463 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 192 flow [2024-10-24 23:28:27,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-10-24 23:28:27,463 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-10-24 23:28:27,464 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 192 flow [2024-10-24 23:28:27,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:28:27,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:28:27,464 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] [2024-10-24 23:28:27,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:28:27,464 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 23:28:27,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:28:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash 614189950, now seen corresponding path program 1 times [2024-10-24 23:28:27,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:28:27,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236729612] [2024-10-24 23:28:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:28:27,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:28:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:28:27,575 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 23:28:27,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:28:27,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236729612] [2024-10-24 23:28:27,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236729612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:28:27,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:28:27,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:28:27,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965625948] [2024-10-24 23:28:27,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:28:27,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:28:27,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:28:27,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:28:27,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:28:27,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-10-24 23:28:27,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 23:28:27,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:28:27,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-10-24 23:28:27,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:28:28,601 INFO L124 PetriNetUnfolderBase]: 6607/9103 cut-off events. [2024-10-24 23:28:28,601 INFO L125 PetriNetUnfolderBase]: For 4236/4236 co-relation queries the response was YES. [2024-10-24 23:28:28,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23632 conditions, 9103 events. 6607/9103 cut-off events. For 4236/4236 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 52206 event pairs, 563 based on Foata normal form. 0/8758 useless extension candidates. Maximal degree in co-relation 23619. Up to 3176 conditions per place. [2024-10-24 23:28:28,646 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 75 selfloop transitions, 13 changer transitions 4/106 dead transitions. [2024-10-24 23:28:28,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 106 transitions, 512 flow [2024-10-24 23:28:28,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:28:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:28:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 186 transitions. [2024-10-24 23:28:28,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2024-10-24 23:28:28,648 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 192 flow. Second operand 5 states and 186 transitions. [2024-10-24 23:28:28,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 106 transitions, 512 flow [2024-10-24 23:28:28,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 106 transitions, 494 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-24 23:28:28,654 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 216 flow [2024-10-24 23:28:28,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=216, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-10-24 23:28:28,655 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-10-24 23:28:28,655 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 216 flow [2024-10-24 23:28:28,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 23:28:28,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:28:28,655 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, 1, 1, 1, 1] [2024-10-24 23:28:28,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:28:28,656 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 23:28:28,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:28:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash 310248478, now seen corresponding path program 1 times [2024-10-24 23:28:28,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:28:28,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443634195] [2024-10-24 23:28:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:28:28,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:28:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:28:28,824 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 23:28:28,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:28:28,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443634195] [2024-10-24 23:28:28,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443634195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:28:28,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:28:28,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:28:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723168103] [2024-10-24 23:28:28,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:28:28,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:28:28,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:28:28,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:28:28,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:28:28,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 52 [2024-10-24 23:28:28,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 23:28:28,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:28:28,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 52 [2024-10-24 23:28:28,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:28:29,874 INFO L124 PetriNetUnfolderBase]: 5935/8191 cut-off events. [2024-10-24 23:28:29,874 INFO L125 PetriNetUnfolderBase]: For 7332/7332 co-relation queries the response was YES. [2024-10-24 23:28:29,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21957 conditions, 8191 events. 5935/8191 cut-off events. For 7332/7332 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 48041 event pairs, 443 based on Foata normal form. 160/8166 useless extension candidates. Maximal degree in co-relation 21943. Up to 3176 conditions per place. [2024-10-24 23:28:29,889 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2024-10-24 23:28:29,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 98 transitions, 464 flow [2024-10-24 23:28:29,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:28:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:28:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2024-10-24 23:28:29,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-10-24 23:28:29,893 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 216 flow. Second operand 6 states and 196 transitions. [2024-10-24 23:28:29,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 98 transitions, 464 flow [2024-10-24 23:28:29,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 98 transitions, 409 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-24 23:28:29,942 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-10-24 23:28:29,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-10-24 23:28:29,943 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-10-24 23:28:29,943 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-10-24 23:28:29,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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 23:28:29,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-10-24 23:28:29,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-10-24 23:28:29,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-10-24 23:28:29,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-10-24 23:28:29,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-10-24 23:28:29,946 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-10-24 23:28:29,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-10-24 23:28:29,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-10-24 23:28:29,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2024-10-24 23:28:29,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2024-10-24 23:28:29,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-10-24 23:28:29,947 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-10-24 23:28:29,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-10-24 23:28:29,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-10-24 23:28:29,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-10-24 23:28:29,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-10-24 23:28:29,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-10-24 23:28:29,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-10-24 23:28:29,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-10-24 23:28:29,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-10-24 23:28:29,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:28:29,952 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 23:28:29,956 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:28:29,956 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:28:29,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:28:29 BasicIcfg [2024-10-24 23:28:29,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:28:29,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:28:29,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:28:29,961 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:28:29,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:28:21" (3/4) ... [2024-10-24 23:28:29,962 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:28:29,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 23:28:29,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 23:28:29,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 23:28:29,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-24 23:28:29,967 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 83 nodes and edges [2024-10-24 23:28:29,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-24 23:28:29,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 23:28:29,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 23:28:30,044 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:28:30,045 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:28:30,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:28:30,045 INFO L158 Benchmark]: Toolchain (without parser) took 10076.72ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 115.5MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 466.2MB. Max. memory is 16.1GB. [2024-10-24 23:28:30,045 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 167.8MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:28:30,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.05ms. Allocated memory is still 167.8MB. Free memory was 115.5MB in the beginning and 87.9MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-24 23:28:30,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.51ms. Allocated memory is still 167.8MB. Free memory was 87.9MB in the beginning and 85.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:28:30,046 INFO L158 Benchmark]: Boogie Preprocessor took 57.67ms. Allocated memory is still 167.8MB. Free memory was 85.2MB in the beginning and 81.4MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:28:30,046 INFO L158 Benchmark]: RCFGBuilder took 628.54ms. Allocated memory is still 167.8MB. Free memory was 81.4MB in the beginning and 108.5MB in the end (delta: -27.0MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2024-10-24 23:28:30,048 INFO L158 Benchmark]: TraceAbstraction took 8790.03ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 107.6MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-10-24 23:28:30,048 INFO L158 Benchmark]: Witness Printer took 84.44ms. Allocated memory is still 3.2GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:28:30,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 167.8MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.05ms. Allocated memory is still 167.8MB. Free memory was 115.5MB in the beginning and 87.9MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.51ms. Allocated memory is still 167.8MB. Free memory was 87.9MB in the beginning and 85.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.67ms. Allocated memory is still 167.8MB. Free memory was 85.2MB in the beginning and 81.4MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.54ms. Allocated memory is still 167.8MB. Free memory was 81.4MB in the beginning and 108.5MB in the end (delta: -27.0MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8790.03ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 107.6MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 84.44ms. Allocated memory is still 3.2GB. Free memory was 2.7GB in the beginning and 2.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 858]: 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, 95 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: 8.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 466 IncrementalHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 466 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=216occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 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 23:28:30,069 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