./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe000_rmo.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe000_rmo.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 8451e3cb8884fa2b6b1e99bbb0d2794206f3a8d471135f07f1c96b53a42300f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:38:39,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:38:39,668 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:38:39,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:38:39,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:38:39,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:38:39,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:38:39,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:38:39,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:38:39,695 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:38:39,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:38:39,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:38:39,696 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:38:39,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:38:39,696 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:38:39,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:38:39,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:38:39,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:38:39,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:38:39,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:38:39,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:38:39,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:38:39,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:38:39,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:38:39,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:38:39,700 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 8451e3cb8884fa2b6b1e99bbb0d2794206f3a8d471135f07f1c96b53a42300f5 [2025-01-10 06:38:40,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:38:40,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:38:40,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:38:40,054 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:38:40,054 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:38:40,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe000_rmo.i [2025-01-10 06:38:41,280 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2a9540f4/574912aa7bcb45fbb58034220859da02/FLAGb564a95d9 [2025-01-10 06:38:41,655 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:38:41,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe000_rmo.i [2025-01-10 06:38:41,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2a9540f4/574912aa7bcb45fbb58034220859da02/FLAGb564a95d9 [2025-01-10 06:38:41,854 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2a9540f4/574912aa7bcb45fbb58034220859da02 [2025-01-10 06:38:41,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:38:41,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:38:41,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:38:41,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:38:41,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:38:41,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:38:41" (1/1) ... [2025-01-10 06:38:41,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3344dcec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:41, skipping insertion in model container [2025-01-10 06:38:41,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:38:41" (1/1) ... [2025-01-10 06:38:41,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:38:42,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:38:42,189 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:38:42,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:38:42,264 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:38:42,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42 WrapperNode [2025-01-10 06:38:42,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:38:42,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:38:42,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:38:42,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:38:42,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,298 INFO L138 Inliner]: procedures = 175, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 162 [2025-01-10 06:38:42,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:38:42,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:38:42,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:38:42,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:38:42,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,321 INFO L175 MemorySlicer]: Split 30 memory accesses to 2 slices as follows [28, 2]. 93 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2]. The 11 writes are split as follows [11, 0]. [2025-01-10 06:38:42,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,328 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:38:42,338 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:38:42,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:38:42,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:38:42,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (1/1) ... [2025-01-10 06:38:42,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:38:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:38:42,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:38:42,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:38:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-10 06:38:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-10 06:38:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-01-10 06:38:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:38:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:38:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:38:42,404 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:38:42,539 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:38:42,541 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:38:43,025 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:38:43,026 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:38:43,380 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:38:43,380 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:38:43,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:38:43 BoogieIcfgContainer [2025-01-10 06:38:43,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:38:43,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:38:43,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:38:43,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:38:43,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:38:41" (1/3) ... [2025-01-10 06:38:43,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aed3a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:38:43, skipping insertion in model container [2025-01-10 06:38:43,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:38:42" (2/3) ... [2025-01-10 06:38:43,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aed3a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:38:43, skipping insertion in model container [2025-01-10 06:38:43,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:38:43" (3/3) ... [2025-01-10 06:38:43,387 INFO L128 eAbstractionObserver]: Analyzing ICFG safe000_rmo.i [2025-01-10 06:38:43,410 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:38:43,414 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe000_rmo.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-01-10 06:38:43,418 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:38:43,507 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:38:43,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 90 flow [2025-01-10 06:38:43,563 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2025-01-10 06:38:43,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:38:43,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 83 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:38:43,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 90 flow [2025-01-10 06:38:43,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 81 flow [2025-01-10 06:38:43,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:38:43,586 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;@23c72a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:38:43,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-10 06:38:43,591 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:38:43,592 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-01-10 06:38:43,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:38:43,592 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:43,592 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:43,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:38:43,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:43,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1543430168, now seen corresponding path program 1 times [2025-01-10 06:38:43,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:43,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912692534] [2025-01-10 06:38:43,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:43,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:43,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:38:43,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:38:43,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:43,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:43,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:43,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912692534] [2025-01-10 06:38:43,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912692534] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:43,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:43,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:38:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319752592] [2025-01-10 06:38:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:43,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:38:43,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:43,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:38:43,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:38:43,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2025-01-10 06:38:43,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:38:43,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:43,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2025-01-10 06:38:43,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:44,678 INFO L124 PetriNetUnfolderBase]: 3297/4821 cut-off events. [2025-01-10 06:38:44,678 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-01-10 06:38:44,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9694 conditions, 4821 events. 3297/4821 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 27592 event pairs, 1109 based on Foata normal form. 0/3930 useless extension candidates. Maximal degree in co-relation 9683. Up to 4373 conditions per place. [2025-01-10 06:38:44,725 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 43 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2025-01-10 06:38:44,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 217 flow [2025-01-10 06:38:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:38:44,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:38:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-01-10 06:38:44,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7094017094017094 [2025-01-10 06:38:44,735 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 81 flow. Second operand 3 states and 83 transitions. [2025-01-10 06:38:44,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 217 flow [2025-01-10 06:38:44,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:38:44,742 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 114 flow [2025-01-10 06:38:44,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2025-01-10 06:38:44,748 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2025-01-10 06:38:44,749 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 114 flow [2025-01-10 06:38:44,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:38:44,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:44,750 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:44,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:38:44,750 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:38:44,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:44,751 INFO L85 PathProgramCache]: Analyzing trace with hash -109211756, now seen corresponding path program 1 times [2025-01-10 06:38:44,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:44,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258655611] [2025-01-10 06:38:44,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:44,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:44,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:38:44,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:38:44,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:44,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:44,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:44,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258655611] [2025-01-10 06:38:44,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258655611] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:44,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:44,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:38:44,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209521783] [2025-01-10 06:38:44,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:44,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:38:44,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:44,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:38:44,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:38:44,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2025-01-10 06:38:44,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:38:44,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:44,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2025-01-10 06:38:44,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:45,542 INFO L124 PetriNetUnfolderBase]: 2397/3517 cut-off events. [2025-01-10 06:38:45,542 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2025-01-10 06:38:45,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8150 conditions, 3517 events. 2397/3517 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 19172 event pairs, 727 based on Foata normal form. 0/3138 useless extension candidates. Maximal degree in co-relation 8139. Up to 3068 conditions per place. [2025-01-10 06:38:45,557 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 40 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2025-01-10 06:38:45,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 224 flow [2025-01-10 06:38:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:38:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:38:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2025-01-10 06:38:45,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5576923076923077 [2025-01-10 06:38:45,559 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 114 flow. Second operand 4 states and 87 transitions. [2025-01-10 06:38:45,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 224 flow [2025-01-10 06:38:45,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 51 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:38:45,560 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2025-01-10 06:38:45,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2025-01-10 06:38:45,561 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-01-10 06:38:45,561 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2025-01-10 06:38:45,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:38:45,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:45,561 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:45,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:38:45,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:38:45,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:45,562 INFO L85 PathProgramCache]: Analyzing trace with hash -109211755, now seen corresponding path program 1 times [2025-01-10 06:38:45,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:45,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817108168] [2025-01-10 06:38:45,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:45,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:45,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:38:45,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:38:45,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:45,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:45,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:45,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817108168] [2025-01-10 06:38:45,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817108168] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:45,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:45,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:38:45,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135119573] [2025-01-10 06:38:45,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:45,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:38:45,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:45,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:38:45,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:38:45,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2025-01-10 06:38:45,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:38:45,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:45,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2025-01-10 06:38:45,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:46,137 INFO L124 PetriNetUnfolderBase]: 1797/2657 cut-off events. [2025-01-10 06:38:46,138 INFO L125 PetriNetUnfolderBase]: For 572/572 co-relation queries the response was YES. [2025-01-10 06:38:46,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6055 conditions, 2657 events. 1797/2657 cut-off events. For 572/572 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 13741 event pairs, 329 based on Foata normal form. 0/2574 useless extension candidates. Maximal degree in co-relation 6043. Up to 1169 conditions per place. [2025-01-10 06:38:46,152 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 53 selfloop transitions, 7 changer transitions 3/70 dead transitions. [2025-01-10 06:38:46,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 70 transitions, 312 flow [2025-01-10 06:38:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:38:46,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:38:46,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-01-10 06:38:46,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6794871794871795 [2025-01-10 06:38:46,154 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 4 states and 106 transitions. [2025-01-10 06:38:46,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 70 transitions, 312 flow [2025-01-10 06:38:46,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 70 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:38:46,156 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 127 flow [2025-01-10 06:38:46,157 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2025-01-10 06:38:46,157 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2025-01-10 06:38:46,157 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 127 flow [2025-01-10 06:38:46,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:38:46,158 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:38:46,158 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:38:46,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:38:46,158 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:38:46,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:38:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1805159670, now seen corresponding path program 1 times [2025-01-10 06:38:46,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:38:46,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558981877] [2025-01-10 06:38:46,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:38:46,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:38:46,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 06:38:46,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 06:38:46,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:38:46,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:38:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:38:46,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:38:46,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558981877] [2025-01-10 06:38:46,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558981877] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:38:46,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:38:46,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:38:46,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244794675] [2025-01-10 06:38:46,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:38:46,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:38:46,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:38:46,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:38:46,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:38:46,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2025-01-10 06:38:46,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2025-01-10 06:38:46,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:38:46,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2025-01-10 06:38:46,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:38:46,681 INFO L124 PetriNetUnfolderBase]: 1529/2269 cut-off events. [2025-01-10 06:38:46,682 INFO L125 PetriNetUnfolderBase]: For 1332/1332 co-relation queries the response was YES. [2025-01-10 06:38:46,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5752 conditions, 2269 events. 1529/2269 cut-off events. For 1332/1332 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11805 event pairs, 269 based on Foata normal form. 72/2330 useless extension candidates. Maximal degree in co-relation 5739. Up to 1040 conditions per place. [2025-01-10 06:38:46,687 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2025-01-10 06:38:46,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 291 flow [2025-01-10 06:38:46,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:38:46,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:38:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2025-01-10 06:38:46,688 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2025-01-10 06:38:46,688 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 127 flow. Second operand 5 states and 110 transitions. [2025-01-10 06:38:46,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 291 flow [2025-01-10 06:38:46,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 64 transitions, 267 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-01-10 06:38:46,690 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2025-01-10 06:38:46,690 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2025-01-10 06:38:46,691 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2025-01-10 06:38:46,691 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2025-01-10 06:38:46,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2025-01-10 06:38:46,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-01-10 06:38:46,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-01-10 06:38:46,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-01-10 06:38:46,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:38:46,695 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 06:38:46,698 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:38:46,698 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:38:46,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:38:46 BasicIcfg [2025-01-10 06:38:46,701 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:38:46,702 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:38:46,702 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:38:46,702 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:38:46,702 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:38:43" (3/4) ... [2025-01-10 06:38:46,703 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:38:46,705 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-10 06:38:46,705 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-10 06:38:46,705 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2025-01-10 06:38:46,708 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2025-01-10 06:38:46,708 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-01-10 06:38:46,708 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 06:38:46,710 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 06:38:46,759 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:38:46,759 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:38:46,759 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:38:46,760 INFO L158 Benchmark]: Toolchain (without parser) took 4902.53ms. Allocated memory was 201.3MB in the beginning and 637.5MB in the end (delta: 436.2MB). Free memory was 153.8MB in the beginning and 352.1MB in the end (delta: -198.3MB). Peak memory consumption was 238.0MB. Max. memory is 16.1GB. [2025-01-10 06:38:46,760 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 209.7MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:38:46,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.72ms. Allocated memory is still 201.3MB. Free memory was 153.3MB in the beginning and 128.2MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:38:46,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.70ms. Allocated memory is still 201.3MB. Free memory was 128.2MB in the beginning and 125.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:38:46,761 INFO L158 Benchmark]: Boogie Preprocessor took 38.64ms. Allocated memory is still 201.3MB. Free memory was 125.6MB in the beginning and 121.2MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:38:46,761 INFO L158 Benchmark]: RCFGBuilder took 1043.31ms. Allocated memory is still 201.3MB. Free memory was 121.2MB in the beginning and 105.9MB in the end (delta: 15.3MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2025-01-10 06:38:46,761 INFO L158 Benchmark]: TraceAbstraction took 3319.18ms. Allocated memory was 201.3MB in the beginning and 637.5MB in the end (delta: 436.2MB). Free memory was 104.8MB in the beginning and 356.4MB in the end (delta: -251.6MB). Peak memory consumption was 338.9MB. Max. memory is 16.1GB. [2025-01-10 06:38:46,761 INFO L158 Benchmark]: Witness Printer took 57.38ms. Allocated memory is still 637.5MB. Free memory was 356.4MB in the beginning and 352.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:38:46,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 209.7MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.72ms. Allocated memory is still 201.3MB. Free memory was 153.3MB in the beginning and 128.2MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.70ms. Allocated memory is still 201.3MB. Free memory was 128.2MB in the beginning and 125.6MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.64ms. Allocated memory is still 201.3MB. Free memory was 125.6MB in the beginning and 121.2MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1043.31ms. Allocated memory is still 201.3MB. Free memory was 121.2MB in the beginning and 105.9MB in the end (delta: 15.3MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3319.18ms. Allocated memory was 201.3MB in the beginning and 637.5MB in the end (delta: 436.2MB). Free memory was 104.8MB in the beginning and 356.4MB in the end (delta: -251.6MB). Peak memory consumption was 338.9MB. Max. memory is 16.1GB. * Witness Printer took 57.38ms. Allocated memory is still 637.5MB. Free memory was 356.4MB in the beginning and 352.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: 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 7 procedures, 70 locations, 15 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: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 2 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:38:46,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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