./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix006.opt.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/mix006.opt.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 557c1f2fab4f7585e181c0a50145e0f2efcca52cad7f093489c012afed407365 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:36:04,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:36:04,144 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:36:04,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:36:04,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:36:04,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:36:04,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:36:04,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:36:04,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:36:04,175 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:36:04,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:36:04,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:36:04,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:36:04,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:36:04,176 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:36:04,176 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:36:04,176 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:36:04,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:36:04,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:36:04,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:36:04,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:36:04,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:36:04,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:36:04,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:36:04,179 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 -> 557c1f2fab4f7585e181c0a50145e0f2efcca52cad7f093489c012afed407365 [2025-01-10 06:36:04,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:36:04,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:36:04,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:36:04,413 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:36:04,413 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:36:04,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix006.opt.i [2025-01-10 06:36:05,486 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b54a10fe/5a0401d1744c4e3f9af34cd45a053123/FLAGe39dc39c7 [2025-01-10 06:36:05,800 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:36:05,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix006.opt.i [2025-01-10 06:36:05,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b54a10fe/5a0401d1744c4e3f9af34cd45a053123/FLAGe39dc39c7 [2025-01-10 06:36:05,833 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b54a10fe/5a0401d1744c4e3f9af34cd45a053123 [2025-01-10 06:36:05,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:36:05,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:36:05,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:36:05,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:36:05,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:36:05,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:36:05" (1/1) ... [2025-01-10 06:36:05,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3997735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:05, skipping insertion in model container [2025-01-10 06:36:05,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:36:05" (1/1) ... [2025-01-10 06:36:05,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:36:06,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:36:06,112 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:36:06,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:36:06,202 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:36:06,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06 WrapperNode [2025-01-10 06:36:06,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:36:06,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:36:06,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:36:06,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:36:06,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,223 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,242 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 145 [2025-01-10 06:36:06,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:36:06,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:36:06,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:36:06,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:36:06,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,271 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:36:06,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:36:06,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:36:06,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:36:06,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:36:06,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (1/1) ... [2025-01-10 06:36:06,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:36:06,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:36:06,327 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 06:36:06,329 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 06:36:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:36:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:36:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-01-10 06:36:06,347 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-01-10 06:36:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-01-10 06:36:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-01-10 06:36:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-01-10 06:36:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-01-10 06:36:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:36:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:36:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:36:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:36:06,349 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 06:36:06,444 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:36:06,445 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:36:06,666 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:36:06,666 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:36:06,816 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:36:06,816 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:36:06,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:36:06 BoogieIcfgContainer [2025-01-10 06:36:06,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:36:06,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:36:06,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:36:06,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:36:06,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:36:05" (1/3) ... [2025-01-10 06:36:06,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afde7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:36:06, skipping insertion in model container [2025-01-10 06:36:06,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:36:06" (2/3) ... [2025-01-10 06:36:06,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afde7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:36:06, skipping insertion in model container [2025-01-10 06:36:06,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:36:06" (3/3) ... [2025-01-10 06:36:06,827 INFO L128 eAbstractionObserver]: Analyzing ICFG mix006.opt.i [2025-01-10 06:36:06,836 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:36:06,855 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix006.opt.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-01-10 06:36:06,856 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:36:06,905 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:36:06,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2025-01-10 06:36:06,954 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2025-01-10 06:36:06,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:36:06,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 06:36:06,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2025-01-10 06:36:06,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2025-01-10 06:36:06,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:36:06,983 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;@3bb1d517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:36:06,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-01-10 06:36:06,988 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:36:06,988 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-01-10 06:36:06,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:36:06,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:36:06,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:36:06,989 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 06:36:06,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:36:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1750351008, now seen corresponding path program 1 times [2025-01-10 06:36:06,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:36:07,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744157371] [2025-01-10 06:36:07,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:36:07,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:36:07,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:36:07,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:36:07,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:36:07,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:36:07,170 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 06:36:07,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:36:07,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744157371] [2025-01-10 06:36:07,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744157371] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:36:07,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:36:07,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:36:07,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122240466] [2025-01-10 06:36:07,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:36:07,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:36:07,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:36:07,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:36:07,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:36:07,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-01-10 06:36:07,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 06:36:07,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:36:07,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-01-10 06:36:07,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:36:07,671 INFO L124 PetriNetUnfolderBase]: 1937/2892 cut-off events. [2025-01-10 06:36:07,672 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-01-10 06:36:07,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5809 conditions, 2892 events. 1937/2892 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 17347 event pairs, 687 based on Foata normal form. 0/2224 useless extension candidates. Maximal degree in co-relation 5798. Up to 2773 conditions per place. [2025-01-10 06:36:07,699 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 37 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2025-01-10 06:36:07,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 203 flow [2025-01-10 06:36:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:36:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:36:07,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2025-01-10 06:36:07,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7479674796747967 [2025-01-10 06:36:07,711 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 92 transitions. [2025-01-10 06:36:07,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 203 flow [2025-01-10 06:36:07,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:36:07,718 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2025-01-10 06:36:07,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2025-01-10 06:36:07,725 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2025-01-10 06:36:07,725 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2025-01-10 06:36:07,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 06:36:07,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:36:07,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:36:07,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:36:07,726 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 06:36:07,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:36:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1329101471, now seen corresponding path program 1 times [2025-01-10 06:36:07,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:36:07,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542726788] [2025-01-10 06:36:07,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:36:07,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:36:07,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:36:07,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:36:07,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:36:07,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:36:07,877 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 06:36:07,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:36:07,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542726788] [2025-01-10 06:36:07,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542726788] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:36:07,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:36:07,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:36:07,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432259514] [2025-01-10 06:36:07,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:36:07,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:36:07,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:36:07,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:36:07,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:36:07,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-01-10 06:36:07,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:36:07,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:36:07,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-01-10 06:36:07,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:36:08,159 INFO L124 PetriNetUnfolderBase]: 1288/1945 cut-off events. [2025-01-10 06:36:08,159 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2025-01-10 06:36:08,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4599 conditions, 1945 events. 1288/1945 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 10994 event pairs, 388 based on Foata normal form. 0/1665 useless extension candidates. Maximal degree in co-relation 4588. Up to 1825 conditions per place. [2025-01-10 06:36:08,172 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 34 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2025-01-10 06:36:08,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 50 transitions, 210 flow [2025-01-10 06:36:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:36:08,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:36:08,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-01-10 06:36:08,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6158536585365854 [2025-01-10 06:36:08,175 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 101 transitions. [2025-01-10 06:36:08,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 50 transitions, 210 flow [2025-01-10 06:36:08,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:36:08,176 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 110 flow [2025-01-10 06:36:08,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2025-01-10 06:36:08,177 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2025-01-10 06:36:08,177 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 110 flow [2025-01-10 06:36:08,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:36:08,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:36:08,177 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:36:08,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:36:08,178 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 06:36:08,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:36:08,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1329101472, now seen corresponding path program 1 times [2025-01-10 06:36:08,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:36:08,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598256502] [2025-01-10 06:36:08,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:36:08,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:36:08,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:36:08,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:36:08,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:36:08,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:36:08,289 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 06:36:08,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:36:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598256502] [2025-01-10 06:36:08,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598256502] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:36:08,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:36:08,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:36:08,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461086655] [2025-01-10 06:36:08,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:36:08,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:36:08,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:36:08,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:36:08,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:36:08,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-01-10 06:36:08,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:36:08,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:36:08,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-01-10 06:36:08,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:36:08,527 INFO L124 PetriNetUnfolderBase]: 885/1364 cut-off events. [2025-01-10 06:36:08,527 INFO L125 PetriNetUnfolderBase]: For 326/326 co-relation queries the response was YES. [2025-01-10 06:36:08,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3162 conditions, 1364 events. 885/1364 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7104 event pairs, 95 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 3150. Up to 817 conditions per place. [2025-01-10 06:36:08,533 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 44 selfloop transitions, 7 changer transitions 3/66 dead transitions. [2025-01-10 06:36:08,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 66 transitions, 286 flow [2025-01-10 06:36:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:36:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:36:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-01-10 06:36:08,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7134146341463414 [2025-01-10 06:36:08,534 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 110 flow. Second operand 4 states and 117 transitions. [2025-01-10 06:36:08,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 66 transitions, 286 flow [2025-01-10 06:36:08,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 66 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:36:08,536 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 131 flow [2025-01-10 06:36:08,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2025-01-10 06:36:08,537 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2025-01-10 06:36:08,537 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 131 flow [2025-01-10 06:36:08,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:36:08,537 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:36:08,537 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, 1, 1] [2025-01-10 06:36:08,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:36:08,537 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 06:36:08,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:36:08,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1958318385, now seen corresponding path program 1 times [2025-01-10 06:36:08,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:36:08,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335329335] [2025-01-10 06:36:08,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:36:08,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:36:08,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 06:36:08,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 06:36:08,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:36:08,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:36:08,707 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 06:36:08,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:36:08,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335329335] [2025-01-10 06:36:08,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335329335] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:36:08,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:36:08,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:36:08,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321919503] [2025-01-10 06:36:08,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:36:08,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:36:08,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:36:08,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:36:08,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:36:08,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-01-10 06:36:08,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:36:08,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:36:08,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-01-10 06:36:08,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:36:08,895 INFO L124 PetriNetUnfolderBase]: 665/1044 cut-off events. [2025-01-10 06:36:08,896 INFO L125 PetriNetUnfolderBase]: For 762/762 co-relation queries the response was YES. [2025-01-10 06:36:08,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2777 conditions, 1044 events. 665/1044 cut-off events. For 762/762 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 5492 event pairs, 45 based on Foata normal form. 60/1092 useless extension candidates. Maximal degree in co-relation 2764. Up to 496 conditions per place. [2025-01-10 06:36:08,899 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2025-01-10 06:36:08,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 265 flow [2025-01-10 06:36:08,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:36:08,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:36:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2025-01-10 06:36:08,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6146341463414634 [2025-01-10 06:36:08,901 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 131 flow. Second operand 5 states and 126 transitions. [2025-01-10 06:36:08,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 265 flow [2025-01-10 06:36:08,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 241 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-01-10 06:36:08,903 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2025-01-10 06:36:08,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2025-01-10 06:36:08,904 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2025-01-10 06:36:08,904 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2025-01-10 06:36:08,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:36:08,908 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-01-10 06:36:08,909 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-01-10 06:36:08,909 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-01-10 06:36:08,909 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-01-10 06:36:08,909 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-01-10 06:36:08,909 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-01-10 06:36:08,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-01-10 06:36:08,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:36:08,910 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-10 06:36:08,914 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:36:08,914 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:36:08,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:36:08 BasicIcfg [2025-01-10 06:36:08,919 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:36:08,920 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:36:08,921 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:36:08,921 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:36:08,921 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:36:06" (3/4) ... [2025-01-10 06:36:08,922 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:36:08,924 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2025-01-10 06:36:08,925 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2025-01-10 06:36:08,925 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2025-01-10 06:36:08,928 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2025-01-10 06:36:08,929 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-01-10 06:36:08,930 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-10 06:36:08,930 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-10 06:36:08,989 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:36:08,989 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:36:08,990 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:36:08,991 INFO L158 Benchmark]: Toolchain (without parser) took 3154.33ms. Allocated memory was 167.8MB in the beginning and 251.7MB in the end (delta: 83.9MB). Free memory was 120.6MB in the beginning and 92.3MB in the end (delta: 28.3MB). Peak memory consumption was 114.2MB. Max. memory is 16.1GB. [2025-01-10 06:36:08,991 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:36:08,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.12ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 96.8MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:36:08,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.47ms. Allocated memory is still 167.8MB. Free memory was 96.8MB in the beginning and 94.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:36:08,993 INFO L158 Benchmark]: Boogie Preprocessor took 54.58ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 90.9MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:36:08,993 INFO L158 Benchmark]: RCFGBuilder took 516.28ms. Allocated memory is still 167.8MB. Free memory was 90.9MB in the beginning and 35.2MB in the end (delta: 55.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-10 06:36:08,994 INFO L158 Benchmark]: TraceAbstraction took 2100.93ms. Allocated memory was 167.8MB in the beginning and 251.7MB in the end (delta: 83.9MB). Free memory was 34.4MB in the beginning and 98.0MB in the end (delta: -63.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2025-01-10 06:36:08,996 INFO L158 Benchmark]: Witness Printer took 69.80ms. Allocated memory is still 251.7MB. Free memory was 98.0MB in the beginning and 92.3MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:36:08,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.12ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 96.8MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.47ms. Allocated memory is still 167.8MB. Free memory was 96.8MB in the beginning and 94.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.58ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 90.9MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 516.28ms. Allocated memory is still 167.8MB. Free memory was 90.9MB in the beginning and 35.2MB in the end (delta: 55.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2100.93ms. Allocated memory was 167.8MB in the beginning and 251.7MB in the end (delta: 83.9MB). Free memory was 34.4MB in the beginning and 98.0MB in the end (delta: -63.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 69.80ms. Allocated memory is still 251.7MB. Free memory was 98.0MB in the beginning and 92.3MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: 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, 74 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 254 IncrementalHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 254 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=131occurred 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, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 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 06:36:09,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE