./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/pthread-wmm/safe016_power.opt.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 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:53:32,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:53:32,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:53:32,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:53:32,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:53:32,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:53:32,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:53:32,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:53:32,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:53:32,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:53:32,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:53:32,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:53:32,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:53:32,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:53:32,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:53:32,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:53:32,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:53:32,590 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:53:32,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:53:32,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:53:32,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:53:32,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:53:32,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:53:32,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:53:32,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:53:32,596 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:53:32,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:53:32,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:53:32,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:53:32,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:53:32,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:53:32,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:53:32,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:53:32,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:53:32,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:53:32,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:53:32,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:53:32,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:53:32,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:53:32,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:53:32,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:53:32,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:53:32,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:53:32,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:53:32,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 [2024-11-19 13:53:32,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:53:32,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:53:32,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:53:32,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:53:32,904 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:53:32,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2024-11-19 13:53:34,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:53:34,680 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:53:34,680 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2024-11-19 13:53:34,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc64597a4/1a99c3c27fe14ecbad2b0662dc3004c3/FLAGd3c832505 [2024-11-19 13:53:34,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc64597a4/1a99c3c27fe14ecbad2b0662dc3004c3 [2024-11-19 13:53:34,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:53:34,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:53:34,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:53:34,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:53:34,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:53:34,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:53:34" (1/1) ... [2024-11-19 13:53:34,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6a8aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:34, skipping insertion in model container [2024-11-19 13:53:34,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:53:34" (1/1) ... [2024-11-19 13:53:34,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:53:35,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:53:35,264 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:53:35,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:53:35,436 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:53:35,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35 WrapperNode [2024-11-19 13:53:35,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:53:35,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:53:35,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:53:35,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:53:35,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,514 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2024-11-19 13:53:35,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:53:35,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:53:35,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:53:35,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:53:35,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,578 INFO L175 MemorySlicer]: Split 30 memory accesses to 2 slices as follows [2, 28]. 93 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 11 writes are split as follows [0, 11]. [2024-11-19 13:53:35,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:53:35,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:53:35,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:53:35,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:53:35,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (1/1) ... [2024-11-19 13:53:35,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:53:35,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:53:35,655 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) [2024-11-19 13:53:35,659 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 [2024-11-19 13:53:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:53:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:53:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:53:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:53:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 13:53:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:53:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 13:53:35,711 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 13:53:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 13:53:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 13:53:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 13:53:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 13:53:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 13:53:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 13:53:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:53:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:53:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 13:53:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:53:35,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:53:35,717 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:53:35,893 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:53:35,895 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:53:36,453 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:53:36,453 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:53:36,920 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:53:36,920 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 13:53:36,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:53:36 BoogieIcfgContainer [2024-11-19 13:53:36,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:53:36,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:53:36,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:53:36,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:53:36,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:53:34" (1/3) ... [2024-11-19 13:53:36,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0b30b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:53:36, skipping insertion in model container [2024-11-19 13:53:36,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:53:35" (2/3) ... [2024-11-19 13:53:36,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0b30b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:53:36, skipping insertion in model container [2024-11-19 13:53:36,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:53:36" (3/3) ... [2024-11-19 13:53:36,957 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.opt.i [2024-11-19 13:53:36,985 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:53:36,986 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-19 13:53:36,986 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:53:37,085 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:53:37,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 48 transitions, 112 flow [2024-11-19 13:53:37,170 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-11-19 13:53:37,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:53:37,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 0/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 111 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-19 13:53:37,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 48 transitions, 112 flow [2024-11-19 13:53:37,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 44 transitions, 100 flow [2024-11-19 13:53:37,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:53:37,200 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;@8432681, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:53:37,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 13:53:37,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:53:37,212 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 13:53:37,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:53:37,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:53:37,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:53:37,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 13:53:37,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:53:37,219 INFO L85 PathProgramCache]: Analyzing trace with hash 194085918, now seen corresponding path program 1 times [2024-11-19 13:53:37,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:53:37,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798737135] [2024-11-19 13:53:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:53:37,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:53:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:53:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:53:37,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:53:37,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798737135] [2024-11-19 13:53:37,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798737135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:53:37,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:53:37,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:53:37,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659153716] [2024-11-19 13:53:37,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:53:37,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:53:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:53:37,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:53:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:53:37,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2024-11-19 13:53:37,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-19 13:53:37,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:53:37,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2024-11-19 13:53:37,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:53:44,341 INFO L124 PetriNetUnfolderBase]: 31015/41374 cut-off events. [2024-11-19 13:53:44,341 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2024-11-19 13:53:44,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83202 conditions, 41374 events. 31015/41374 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 1805. Compared 253071 event pairs, 11945 based on Foata normal form. 0/31346 useless extension candidates. Maximal degree in co-relation 83190. Up to 39959 conditions per place. [2024-11-19 13:53:44,633 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 53 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2024-11-19 13:53:44,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 269 flow [2024-11-19 13:53:44,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:53:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:53:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-19 13:53:44,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-19 13:53:44,649 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 100 flow. Second operand 3 states and 102 transitions. [2024-11-19 13:53:44,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 269 flow [2024-11-19 13:53:44,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 13:53:44,666 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 143 flow [2024-11-19 13:53:44,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-11-19 13:53:44,675 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-11-19 13:53:44,676 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 143 flow [2024-11-19 13:53:44,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-19 13:53:44,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:53:44,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:53:44,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:53:44,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 13:53:44,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:53:44,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1654912666, now seen corresponding path program 1 times [2024-11-19 13:53:44,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:53:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342842647] [2024-11-19 13:53:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:53:44,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:53:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:53:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:53:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:53:44,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342842647] [2024-11-19 13:53:44,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342842647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:53:44,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:53:44,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:53:44,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592396612] [2024-11-19 13:53:44,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:53:44,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:53:44,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:53:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:53:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:53:44,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2024-11-19 13:53:44,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:53:44,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:53:44,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2024-11-19 13:53:44,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:53:49,066 INFO L124 PetriNetUnfolderBase]: 18089/24288 cut-off events. [2024-11-19 13:53:49,067 INFO L125 PetriNetUnfolderBase]: For 1745/1745 co-relation queries the response was YES. [2024-11-19 13:53:49,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56829 conditions, 24288 events. 18089/24288 cut-off events. For 1745/1745 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 143315 event pairs, 5905 based on Foata normal form. 0/20760 useless extension candidates. Maximal degree in co-relation 56818. Up to 22872 conditions per place. [2024-11-19 13:53:49,264 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 49 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2024-11-19 13:53:49,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 277 flow [2024-11-19 13:53:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:53:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:53:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-11-19 13:53:49,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5520833333333334 [2024-11-19 13:53:49,270 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 143 flow. Second operand 4 states and 106 transitions. [2024-11-19 13:53:49,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 277 flow [2024-11-19 13:53:49,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:53:49,275 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 132 flow [2024-11-19 13:53:49,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-11-19 13:53:49,277 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-19 13:53:49,277 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 132 flow [2024-11-19 13:53:49,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:53:49,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:53:49,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:53:49,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 13:53:49,279 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 13:53:49,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:53:49,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1654912667, now seen corresponding path program 1 times [2024-11-19 13:53:49,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:53:49,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879518273] [2024-11-19 13:53:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:53:49,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:53:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:53:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:53:49,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:53:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879518273] [2024-11-19 13:53:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879518273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:53:49,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:53:49,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:53:49,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779815330] [2024-11-19 13:53:49,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:53:49,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:53:49,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:53:49,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:53:49,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:53:49,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2024-11-19 13:53:49,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:53:49,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:53:49,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2024-11-19 13:53:49,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:53:51,791 INFO L124 PetriNetUnfolderBase]: 12787/17370 cut-off events. [2024-11-19 13:53:51,791 INFO L125 PetriNetUnfolderBase]: For 2612/2612 co-relation queries the response was YES. [2024-11-19 13:53:51,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39822 conditions, 17370 events. 12787/17370 cut-off events. For 2612/2612 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 99400 event pairs, 2221 based on Foata normal form. 0/15981 useless extension candidates. Maximal degree in co-relation 39810. Up to 11905 conditions per place. [2024-11-19 13:53:51,887 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 69 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2024-11-19 13:53:51,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 86 transitions, 390 flow [2024-11-19 13:53:51,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:53:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:53:51,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-19 13:53:51,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2024-11-19 13:53:51,893 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 132 flow. Second operand 4 states and 130 transitions. [2024-11-19 13:53:51,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 86 transitions, 390 flow [2024-11-19 13:53:51,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:53:51,899 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 184 flow [2024-11-19 13:53:51,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-11-19 13:53:51,900 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-11-19 13:53:51,901 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 184 flow [2024-11-19 13:53:51,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-19 13:53:51,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:53:51,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:53:51,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:53:51,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 13:53:51,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:53:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash -622726579, now seen corresponding path program 1 times [2024-11-19 13:53:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:53:51,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218052071] [2024-11-19 13:53:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:53:51,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:53:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:53:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:53:52,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:53:52,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218052071] [2024-11-19 13:53:52,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218052071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:53:52,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:53:52,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:53:52,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889270161] [2024-11-19 13:53:52,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:53:52,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:53:52,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:53:52,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:53:52,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:53:52,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2024-11-19 13:53:52,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-11-19 13:53:52,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:53:52,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2024-11-19 13:53:52,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:53:54,493 INFO L124 PetriNetUnfolderBase]: 10087/13710 cut-off events. [2024-11-19 13:53:54,493 INFO L125 PetriNetUnfolderBase]: For 6375/6375 co-relation queries the response was YES. [2024-11-19 13:53:54,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35161 conditions, 13710 events. 10087/13710 cut-off events. For 6375/6375 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 76908 event pairs, 1037 based on Foata normal form. 0/13425 useless extension candidates. Maximal degree in co-relation 35148. Up to 4716 conditions per place. [2024-11-19 13:53:54,579 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 83 selfloop transitions, 13 changer transitions 4/108 dead transitions. [2024-11-19 13:53:54,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 108 transitions, 532 flow [2024-11-19 13:53:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:53:54,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 13:53:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-11-19 13:53:54,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-11-19 13:53:54,581 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 184 flow. Second operand 5 states and 164 transitions. [2024-11-19 13:53:54,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 108 transitions, 532 flow [2024-11-19 13:53:54,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 108 transitions, 514 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-19 13:53:54,590 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 208 flow [2024-11-19 13:53:54,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-19 13:53:54,591 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-11-19 13:53:54,591 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 208 flow [2024-11-19 13:53:54,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2024-11-19 13:53:54,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:53:54,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:53:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:53:54,592 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-19 13:53:54,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:53:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 110334938, now seen corresponding path program 1 times [2024-11-19 13:53:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:53:54,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016848198] [2024-11-19 13:53:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:53:54,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:53:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:53:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:53:54,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:53:54,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016848198] [2024-11-19 13:53:54,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016848198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:53:54,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:53:54,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:53:54,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260087354] [2024-11-19 13:53:54,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:53:54,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:53:54,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:53:54,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:53:54,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:53:54,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2024-11-19 13:53:54,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2024-11-19 13:53:54,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:53:54,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2024-11-19 13:53:54,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:53:56,582 INFO L124 PetriNetUnfolderBase]: 9271/12606 cut-off events. [2024-11-19 13:53:56,582 INFO L125 PetriNetUnfolderBase]: For 10615/10615 co-relation queries the response was YES. [2024-11-19 13:53:56,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33212 conditions, 12606 events. 9271/12606 cut-off events. For 10615/10615 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 71860 event pairs, 893 based on Foata normal form. 192/12705 useless extension candidates. Maximal degree in co-relation 33198. Up to 4716 conditions per place. [2024-11-19 13:53:56,612 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 0 selfloop transitions, 0 changer transitions 100/100 dead transitions. [2024-11-19 13:53:56,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 100 transitions, 484 flow [2024-11-19 13:53:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:53:56,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:53:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2024-11-19 13:53:56,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-19 13:53:56,614 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 208 flow. Second operand 6 states and 168 transitions. [2024-11-19 13:53:56,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 100 transitions, 484 flow [2024-11-19 13:53:56,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 100 transitions, 429 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-19 13:53:56,765 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-11-19 13:53:56,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-11-19 13:53:56,768 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-19 13:53:56,768 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-11-19 13:53:56,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2024-11-19 13:53:56,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-11-19 13:53:56,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-11-19 13:53:56,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-11-19 13:53:56,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-11-19 13:53:56,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-11-19 13:53:56,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-11-19 13:53:56,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-11-19 13:53:56,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-11-19 13:53:56,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2024-11-19 13:53:56,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2024-11-19 13:53:56,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2024-11-19 13:53:56,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2024-11-19 13:53:56,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-11-19 13:53:56,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-11-19 13:53:56,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-11-19 13:53:56,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-11-19 13:53:56,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-11-19 13:53:56,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-11-19 13:53:56,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-11-19 13:53:56,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-11-19 13:53:56,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:53:56,785 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 13:53:56,792 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 13:53:56,792 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 13:53:56,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:53:56 BasicIcfg [2024-11-19 13:53:56,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 13:53:56,799 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 13:53:56,799 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 13:53:56,800 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 13:53:56,800 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:53:36" (3/4) ... [2024-11-19 13:53:56,802 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 13:53:56,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 13:53:56,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 13:53:56,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-19 13:53:56,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-19 13:53:56,814 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-11-19 13:53:56,815 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-19 13:53:56,815 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 13:53:56,816 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 13:53:56,924 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 13:53:56,925 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 13:53:56,925 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 13:53:56,926 INFO L158 Benchmark]: Toolchain (without parser) took 22197.69ms. Allocated memory was 144.7MB in the beginning and 8.0GB in the end (delta: 7.9GB). Free memory was 88.7MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 935.8MB. Max. memory is 16.1GB. [2024-11-19 13:53:56,926 INFO L158 Benchmark]: CDTParser took 1.85ms. Allocated memory is still 144.7MB. Free memory was 104.9MB in the beginning and 104.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 13:53:56,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 705.45ms. Allocated memory is still 144.7MB. Free memory was 88.3MB in the beginning and 112.0MB in the end (delta: -23.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-19 13:53:56,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.13ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 111.9MB in the beginning and 172.0MB in the end (delta: -60.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2024-11-19 13:53:56,927 INFO L158 Benchmark]: Boogie Preprocessor took 95.69ms. Allocated memory is still 203.4MB. Free memory was 172.0MB in the beginning and 166.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 13:53:56,927 INFO L158 Benchmark]: RCFGBuilder took 1308.62ms. Allocated memory is still 203.4MB. Free memory was 166.8MB in the beginning and 146.0MB in the end (delta: 20.8MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. [2024-11-19 13:53:56,927 INFO L158 Benchmark]: TraceAbstraction took 19858.97ms. Allocated memory was 203.4MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 145.0MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-19 13:53:56,927 INFO L158 Benchmark]: Witness Printer took 125.66ms. Allocated memory is still 8.0GB. Free memory was 7.0GB in the beginning and 7.0GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 13:53:56,931 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.85ms. Allocated memory is still 144.7MB. Free memory was 104.9MB in the beginning and 104.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 705.45ms. Allocated memory is still 144.7MB. Free memory was 88.3MB in the beginning and 112.0MB in the end (delta: -23.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.13ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 111.9MB in the beginning and 172.0MB in the end (delta: -60.1MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.69ms. Allocated memory is still 203.4MB. Free memory was 172.0MB in the beginning and 166.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1308.62ms. Allocated memory is still 203.4MB. Free memory was 166.8MB in the beginning and 146.0MB in the end (delta: 20.8MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. * TraceAbstraction took 19858.97ms. Allocated memory was 203.4MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 145.0MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 125.66ms. Allocated memory is still 8.0GB. Free memory was 7.0GB in the beginning and 7.0GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 846]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 846]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 87 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 279 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 503 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 2 mSDtfsCounter, 503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 13:53:56,960 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