./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.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/goblint-regression/04-mutex_15-funarg_nr.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 df8b3c6576309918ab02364f32df18a2107bf04dd579248cd48dca03e33a8ed2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:43:45,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:43:45,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:43:45,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:43:45,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:43:45,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:43:45,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:43:45,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:43:45,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:43:45,651 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:43:45,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:43:45,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:43:45,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:43:45,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:43:45,651 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:43:45,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:43:45,652 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:43:45,653 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:43:45,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:43:45,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:43:45,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:43:45,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:43:45,654 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 -> df8b3c6576309918ab02364f32df18a2107bf04dd579248cd48dca03e33a8ed2 [2025-01-10 06:43:45,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:43:45,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:43:45,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:43:45,878 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:43:45,878 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:43:45,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i [2025-01-10 06:43:47,047 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1966fff28/c70348b74a984132a75afd8a96df443e/FLAGea9c3ca8e [2025-01-10 06:43:47,348 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:43:47,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_15-funarg_nr.i [2025-01-10 06:43:47,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1966fff28/c70348b74a984132a75afd8a96df443e/FLAGea9c3ca8e [2025-01-10 06:43:47,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1966fff28/c70348b74a984132a75afd8a96df443e [2025-01-10 06:43:47,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:43:47,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:43:47,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:43:47,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:43:47,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:43:47,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a211afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47, skipping insertion in model container [2025-01-10 06:43:47,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,418 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:43:47,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:43:47,685 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:43:47,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:43:47,775 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:43:47,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47 WrapperNode [2025-01-10 06:43:47,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:43:47,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:43:47,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:43:47,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:43:47,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,812 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 154 [2025-01-10 06:43:47,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:43:47,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:43:47,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:43:47,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:43:47,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,834 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2025-01-10 06:43:47,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,840 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:43:47,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:43:47,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:43:47,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:43:47,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (1/1) ... [2025-01-10 06:43:47,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:43:47,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:43:47,880 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 06:43:47,886 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 06:43:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:43:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:43:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:43:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:43:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:43:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:43:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:43:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:43:47,904 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 06:43:48,026 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:43:48,027 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:43:48,227 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:43:48,228 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:43:48,512 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:43:48,513 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:43:48,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:43:48 BoogieIcfgContainer [2025-01-10 06:43:48,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:43:48,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:43:48,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:43:48,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:43:48,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:43:47" (1/3) ... [2025-01-10 06:43:48,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186a0946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:43:48, skipping insertion in model container [2025-01-10 06:43:48,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:43:47" (2/3) ... [2025-01-10 06:43:48,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186a0946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:43:48, skipping insertion in model container [2025-01-10 06:43:48,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:43:48" (3/3) ... [2025-01-10 06:43:48,521 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_15-funarg_nr.i [2025-01-10 06:43:48,532 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:43:48,533 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_15-funarg_nr.i that has 2 procedures, 28 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-10 06:43:48,534 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:43:48,567 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:43:48,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 27 transitions, 61 flow [2025-01-10 06:43:48,622 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-01-10 06:43:48,626 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:43:48,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 0/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-01-10 06:43:48,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 27 transitions, 61 flow [2025-01-10 06:43:48,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 24 transitions, 51 flow [2025-01-10 06:43:48,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:43:48,648 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;@2fbfc72b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:43:48,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-01-10 06:43:48,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:43:48,695 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-01-10 06:43:48,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:43:48,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:48,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:43:48,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:48,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:48,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1184474701, now seen corresponding path program 1 times [2025-01-10 06:43:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:48,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436415017] [2025-01-10 06:43:48,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:48,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:48,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:43:48,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:43:48,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:48,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:48,994 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 06:43:48,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:48,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436415017] [2025-01-10 06:43:48,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436415017] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:48,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:48,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:43:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722071920] [2025-01-10 06:43:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:49,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:43:49,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:49,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:43:49,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:43:49,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2025-01-10 06:43:49,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 06:43:49,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:49,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2025-01-10 06:43:49,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:49,094 INFO L124 PetriNetUnfolderBase]: 32/91 cut-off events. [2025-01-10 06:43:49,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:43:49,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 91 events. 32/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 279 event pairs, 8 based on Foata normal form. 8/95 useless extension candidates. Maximal degree in co-relation 165. Up to 52 conditions per place. [2025-01-10 06:43:49,096 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 2 changer transitions 5/30 dead transitions. [2025-01-10 06:43:49,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 30 transitions, 107 flow [2025-01-10 06:43:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:43:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:43:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2025-01-10 06:43:49,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2025-01-10 06:43:49,110 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 51 flow. Second operand 3 states and 51 transitions. [2025-01-10 06:43:49,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 30 transitions, 107 flow [2025-01-10 06:43:49,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:43:49,114 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2025-01-10 06:43:49,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2025-01-10 06:43:49,119 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2025-01-10 06:43:49,120 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2025-01-10 06:43:49,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 06:43:49,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:49,120 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:49,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:43:49,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:49,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:49,122 INFO L85 PathProgramCache]: Analyzing trace with hash 976880185, now seen corresponding path program 1 times [2025-01-10 06:43:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879543305] [2025-01-10 06:43:49,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:49,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:49,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:43:49,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:43:49,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:49,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:49,312 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 06:43:49,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:49,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879543305] [2025-01-10 06:43:49,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879543305] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:49,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:49,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:43:49,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930165395] [2025-01-10 06:43:49,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:49,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:43:49,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:49,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:43:49,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:43:49,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-01-10 06:43:49,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 06:43:49,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:49,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-01-10 06:43:49,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:49,400 INFO L124 PetriNetUnfolderBase]: 27/82 cut-off events. [2025-01-10 06:43:49,400 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-10 06:43:49,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 82 events. 27/82 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 230 event pairs, 11 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 157. Up to 49 conditions per place. [2025-01-10 06:43:49,401 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 17 selfloop transitions, 2 changer transitions 5/29 dead transitions. [2025-01-10 06:43:49,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 29 transitions, 114 flow [2025-01-10 06:43:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:43:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:43:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2025-01-10 06:43:49,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-01-10 06:43:49,403 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 63 transitions. [2025-01-10 06:43:49,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 29 transitions, 114 flow [2025-01-10 06:43:49,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:43:49,404 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 56 flow [2025-01-10 06:43:49,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2025-01-10 06:43:49,405 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2025-01-10 06:43:49,405 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 56 flow [2025-01-10 06:43:49,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 06:43:49,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:49,405 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:49,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:43:49,405 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:49,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:49,406 INFO L85 PathProgramCache]: Analyzing trace with hash -280621483, now seen corresponding path program 1 times [2025-01-10 06:43:49,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:49,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350220595] [2025-01-10 06:43:49,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:49,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:49,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:43:49,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:43:49,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:49,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:49,545 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 06:43:49,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:49,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350220595] [2025-01-10 06:43:49,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350220595] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:49,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:49,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:43:49,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522442079] [2025-01-10 06:43:49,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:49,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:43:49,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:49,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:43:49,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:43:49,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 27 [2025-01-10 06:43:49,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 06:43:49,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:49,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 27 [2025-01-10 06:43:49,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:49,604 INFO L124 PetriNetUnfolderBase]: 10/52 cut-off events. [2025-01-10 06:43:49,606 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-10 06:43:49,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 52 events. 10/52 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 4 based on Foata normal form. 7/59 useless extension candidates. Maximal degree in co-relation 101. Up to 23 conditions per place. [2025-01-10 06:43:49,607 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 9 selfloop transitions, 5 changer transitions 0/21 dead transitions. [2025-01-10 06:43:49,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 88 flow [2025-01-10 06:43:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:43:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:43:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2025-01-10 06:43:49,608 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6172839506172839 [2025-01-10 06:43:49,608 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 56 flow. Second operand 3 states and 50 transitions. [2025-01-10 06:43:49,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 88 flow [2025-01-10 06:43:49,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 76 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-01-10 06:43:49,609 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 54 flow [2025-01-10 06:43:49,609 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2025-01-10 06:43:49,610 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2025-01-10 06:43:49,610 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 54 flow [2025-01-10 06:43:49,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 06:43:49,610 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:49,610 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:49,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:43:49,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:49,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1087510685, now seen corresponding path program 1 times [2025-01-10 06:43:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:49,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542994261] [2025-01-10 06:43:49,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:49,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:49,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:43:49,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:43:49,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:49,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:49,738 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 06:43:49,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:49,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542994261] [2025-01-10 06:43:49,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542994261] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:49,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:49,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:43:49,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135150474] [2025-01-10 06:43:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:49,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:43:49,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:49,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:43:49,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:43:49,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-01-10 06:43:49,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 06:43:49,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:49,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-01-10 06:43:49,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:49,822 INFO L124 PetriNetUnfolderBase]: 11/48 cut-off events. [2025-01-10 06:43:49,823 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-01-10 06:43:49,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 48 events. 11/48 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 4 based on Foata normal form. 2/49 useless extension candidates. Maximal degree in co-relation 104. Up to 23 conditions per place. [2025-01-10 06:43:49,823 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 15 selfloop transitions, 3 changer transitions 1/24 dead transitions. [2025-01-10 06:43:49,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 108 flow [2025-01-10 06:43:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:43:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:43:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2025-01-10 06:43:49,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2025-01-10 06:43:49,825 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 54 flow. Second operand 5 states and 55 transitions. [2025-01-10 06:43:49,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 108 flow [2025-01-10 06:43:49,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:43:49,826 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 53 flow [2025-01-10 06:43:49,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=53, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2025-01-10 06:43:49,827 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2025-01-10 06:43:49,827 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 53 flow [2025-01-10 06:43:49,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 06:43:49,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:43:49,827 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:43:49,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:43:49,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-10 06:43:49,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:43:49,827 INFO L85 PathProgramCache]: Analyzing trace with hash -725775724, now seen corresponding path program 1 times [2025-01-10 06:43:49,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:43:49,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801355172] [2025-01-10 06:43:49,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:43:49,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:43:49,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:43:49,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:43:49,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:43:49,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:43:49,934 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 06:43:49,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:43:49,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801355172] [2025-01-10 06:43:49,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801355172] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:43:49,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:43:49,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:43:49,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399636021] [2025-01-10 06:43:49,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:43:49,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:43:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:43:49,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:43:49,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:43:49,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-01-10 06:43:49,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 06:43:49,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:43:49,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-01-10 06:43:49,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:43:49,994 INFO L124 PetriNetUnfolderBase]: 10/45 cut-off events. [2025-01-10 06:43:49,994 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-01-10 06:43:49,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 45 events. 10/45 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 4 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 94. Up to 23 conditions per place. [2025-01-10 06:43:49,994 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2025-01-10 06:43:49,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 102 flow [2025-01-10 06:43:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:43:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:43:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2025-01-10 06:43:49,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4 [2025-01-10 06:43:49,995 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 53 flow. Second operand 5 states and 54 transitions. [2025-01-10 06:43:49,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 102 flow [2025-01-10 06:43:49,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 95 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-01-10 06:43:49,996 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2025-01-10 06:43:49,996 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2025-01-10 06:43:49,997 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2025-01-10 06:43:49,997 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2025-01-10 06:43:49,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 06:43:49,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-01-10 06:43:49,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-01-10 06:43:49,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-01-10 06:43:49,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-01-10 06:43:49,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-01-10 06:43:49,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-01-10 06:43:50,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-01-10 06:43:50,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:43:50,000 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-10 06:43:50,004 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:43:50,004 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:43:50,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:43:50 BasicIcfg [2025-01-10 06:43:50,008 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:43:50,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:43:50,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:43:50,008 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:43:50,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:43:48" (3/4) ... [2025-01-10 06:43:50,012 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:43:50,016 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-10 06:43:50,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2025-01-10 06:43:50,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-10 06:43:50,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:43:50,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 06:43:50,078 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:43:50,078 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:43:50,078 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:43:50,079 INFO L158 Benchmark]: Toolchain (without parser) took 2696.55ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 104.0MB in the beginning and 215.5MB in the end (delta: -111.5MB). Peak memory consumption was 110.5MB. Max. memory is 16.1GB. [2025-01-10 06:43:50,080 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:43:50,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.93ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 76.7MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 06:43:50,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.79ms. Allocated memory is still 142.6MB. Free memory was 76.7MB in the beginning and 73.7MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:43:50,081 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 142.6MB. Free memory was 73.7MB in the beginning and 71.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:43:50,082 INFO L158 Benchmark]: RCFGBuilder took 664.56ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 50.3MB in the end (delta: 21.4MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2025-01-10 06:43:50,082 INFO L158 Benchmark]: TraceAbstraction took 1492.80ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 49.6MB in the beginning and 221.5MB in the end (delta: -171.9MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2025-01-10 06:43:50,082 INFO L158 Benchmark]: Witness Printer took 70.32ms. Allocated memory is still 360.7MB. Free memory was 221.5MB in the beginning and 215.5MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:43:50,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.93ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 76.7MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.79ms. Allocated memory is still 142.6MB. Free memory was 76.7MB in the beginning and 73.7MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 142.6MB. Free memory was 73.7MB in the beginning and 71.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 664.56ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 50.3MB in the end (delta: 21.4MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1492.80ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 49.6MB in the beginning and 221.5MB in the end (delta: -171.9MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Witness Printer took 70.32ms. Allocated memory is still 360.7MB. Free memory was 221.5MB in the beginning and 215.5MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 39 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 211 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 12 mSDtfsCounter, 211 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 21, 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:43:50,097 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