./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:34:03,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:34:04,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:34:04,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:34:04,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:34:04,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:34:04,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:34:04,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:34:04,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:34:04,031 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:34:04,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:34:04,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:34:04,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:34:04,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:34:04,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:34:04,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:34:04,034 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:34:04,034 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:34:04,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:34:04,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:34:04,035 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/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 -> 16b41d7352a3e7bca6c65d29839f35cd9a045339e5497acb7d0d6bf7ecef2ad7 [2025-03-09 06:34:04,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:34:04,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:34:04,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:34:04,329 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:34:04,329 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:34:04,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2025-03-09 06:34:05,495 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8f29c46/e255806fc67041c08cbf212ec821f4b9/FLAGd4519c590 [2025-03-09 06:34:05,782 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:34:05,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2025-03-09 06:34:05,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8f29c46/e255806fc67041c08cbf212ec821f4b9/FLAGd4519c590 [2025-03-09 06:34:05,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8f29c46/e255806fc67041c08cbf212ec821f4b9 [2025-03-09 06:34:05,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:34:05,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:34:05,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:34:05,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:34:05,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:34:05,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:34:05" (1/1) ... [2025-03-09 06:34:05,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49efd45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:05, skipping insertion in model container [2025-03-09 06:34:05,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:34:05" (1/1) ... [2025-03-09 06:34:05,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:34:06,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:34:06,087 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:34:06,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:34:06,142 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:34:06,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06 WrapperNode [2025-03-09 06:34:06,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:34:06,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:34:06,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:34:06,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:34:06,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,174 INFO L138 Inliner]: procedures = 162, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-03-09 06:34:06,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:34:06,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:34:06,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:34:06,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:34:06,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,196 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-03-09 06:34:06,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,199 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:34:06,211 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:34:06,211 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:34:06,211 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:34:06,212 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (1/1) ... [2025-03-09 06:34:06,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:34:06,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:34:06,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:34:06,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:34:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:34:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:34:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-09 06:34:06,256 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-09 06:34:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:34:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:34:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:34:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:34:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:34:06,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:34:06,257 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:34:06,349 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:34:06,351 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:34:06,535 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:34:06,535 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:34:06,652 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:34:06,652 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:34:06,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:34:06 BoogieIcfgContainer [2025-03-09 06:34:06,652 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:34:06,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:34:06,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:34:06,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:34:06,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:34:05" (1/3) ... [2025-03-09 06:34:06,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d35ff3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:34:06, skipping insertion in model container [2025-03-09 06:34:06,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:34:06" (2/3) ... [2025-03-09 06:34:06,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d35ff3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:34:06, skipping insertion in model container [2025-03-09 06:34:06,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:34:06" (3/3) ... [2025-03-09 06:34:06,662 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2025-03-09 06:34:06,672 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:34:06,674 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_31-traces-mine-vs-mutex_true.i that has 2 procedures, 40 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-09 06:34:06,674 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:34:06,714 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-09 06:34:06,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 85 flow [2025-03-09 06:34:06,778 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2025-03-09 06:34:06,781 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:34:06,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 0/38 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-09 06:34:06,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 39 transitions, 85 flow [2025-03-09 06:34:06,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2025-03-09 06:34:06,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:34:06,807 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;@710d7517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:34:06,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-09 06:34:06,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:34:06,816 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-03-09 06:34:06,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:34:06,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:34:06,817 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:34:06,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-09 06:34:06,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:34:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash 924886571, now seen corresponding path program 1 times [2025-03-09 06:34:06,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:34:06,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876806395] [2025-03-09 06:34:06,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:34:06,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:34:06,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:34:06,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:34:06,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:34:06,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:34:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:34:07,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:34:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876806395] [2025-03-09 06:34:07,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876806395] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:34:07,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:34:07,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:34:07,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586306854] [2025-03-09 06:34:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:34:07,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:34:07,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:34:07,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:34:07,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:34:07,141 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2025-03-09 06:34:07,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-03-09 06:34:07,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:34:07,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2025-03-09 06:34:07,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:34:07,306 INFO L124 PetriNetUnfolderBase]: 61/216 cut-off events. [2025-03-09 06:34:07,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:34:07,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 216 events. 61/216 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 972 event pairs, 16 based on Foata normal form. 9/214 useless extension candidates. Maximal degree in co-relation 358. Up to 65 conditions per place. [2025-03-09 06:34:07,311 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 32 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2025-03-09 06:34:07,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 171 flow [2025-03-09 06:34:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:34:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:34:07,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2025-03-09 06:34:07,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2025-03-09 06:34:07,324 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 65 flow. Second operand 4 states and 94 transitions. [2025-03-09 06:34:07,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 171 flow [2025-03-09 06:34:07,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:34:07,331 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 75 flow [2025-03-09 06:34:07,333 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=75, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2025-03-09 06:34:07,336 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2025-03-09 06:34:07,336 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 75 flow [2025-03-09 06:34:07,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-03-09 06:34:07,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:34:07,337 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:34:07,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:34:07,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-09 06:34:07,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:34:07,338 INFO L85 PathProgramCache]: Analyzing trace with hash -171853106, now seen corresponding path program 1 times [2025-03-09 06:34:07,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:34:07,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084062625] [2025-03-09 06:34:07,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:34:07,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:34:07,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:34:07,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:34:07,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:34:07,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:34:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:34:07,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:34:07,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084062625] [2025-03-09 06:34:07,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084062625] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:34:07,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:34:07,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:34:07,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592195896] [2025-03-09 06:34:07,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:34:07,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:34:07,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:34:07,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:34:07,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:34:07,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-03-09 06:34:07,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 75 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:34:07,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:34:07,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-03-09 06:34:07,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:34:07,697 INFO L124 PetriNetUnfolderBase]: 59/185 cut-off events. [2025-03-09 06:34:07,697 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-03-09 06:34:07,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 185 events. 59/185 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 754 event pairs, 16 based on Foata normal form. 14/197 useless extension candidates. Maximal degree in co-relation 344. Up to 48 conditions per place. [2025-03-09 06:34:07,700 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 36 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2025-03-09 06:34:07,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 194 flow [2025-03-09 06:34:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:34:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:34:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2025-03-09 06:34:07,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49145299145299143 [2025-03-09 06:34:07,702 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 75 flow. Second operand 6 states and 115 transitions. [2025-03-09 06:34:07,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 194 flow [2025-03-09 06:34:07,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 188 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:34:07,704 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 70 flow [2025-03-09 06:34:07,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2025-03-09 06:34:07,704 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2025-03-09 06:34:07,704 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 70 flow [2025-03-09 06:34:07,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:34:07,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:34:07,705 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:34:07,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:34:07,705 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-09 06:34:07,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:34:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1032478779, now seen corresponding path program 1 times [2025-03-09 06:34:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:34:07,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208696665] [2025-03-09 06:34:07,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:34:07,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:34:07,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:34:07,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:34:07,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:34:07,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:34:07,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:34:07,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:34:07,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208696665] [2025-03-09 06:34:07,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208696665] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:34:07,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:34:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:34:07,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666453615] [2025-03-09 06:34:07,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:34:07,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:34:07,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:34:07,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:34:07,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:34:07,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2025-03-09 06:34:07,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 70 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:34:07,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:34:07,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2025-03-09 06:34:07,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:34:07,954 INFO L124 PetriNetUnfolderBase]: 52/169 cut-off events. [2025-03-09 06:34:07,955 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-09 06:34:07,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 169 events. 52/169 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 687 event pairs, 16 based on Foata normal form. 9/176 useless extension candidates. Maximal degree in co-relation 321. Up to 48 conditions per place. [2025-03-09 06:34:07,956 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2025-03-09 06:34:07,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 192 flow [2025-03-09 06:34:07,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:34:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:34:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2025-03-09 06:34:07,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47863247863247865 [2025-03-09 06:34:07,959 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 70 flow. Second operand 6 states and 112 transitions. [2025-03-09 06:34:07,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 192 flow [2025-03-09 06:34:07,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 185 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:34:07,960 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2025-03-09 06:34:07,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2025-03-09 06:34:07,962 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2025-03-09 06:34:07,962 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2025-03-09 06:34:07,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-09 06:34:07,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2025-03-09 06:34:07,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-03-09 06:34:07,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-03-09 06:34:07,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-03-09 06:34:07,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2025-03-09 06:34:07,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-03-09 06:34:07,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-03-09 06:34:07,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-03-09 06:34:07,967 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-03-09 06:34:07,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:34:07,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-09 06:34:07,975 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:34:07,975 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:34:07,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:34:07 BasicIcfg [2025-03-09 06:34:07,978 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:34:07,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:34:07,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:34:07,979 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:34:07,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:34:06" (3/4) ... [2025-03-09 06:34:07,980 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:34:07,982 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-09 06:34:07,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-03-09 06:34:07,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-09 06:34:07,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-09 06:34:07,984 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 06:34:08,048 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:34:08,049 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:34:08,049 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:34:08,050 INFO L158 Benchmark]: Toolchain (without parser) took 2235.22ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2025-03-09 06:34:08,050 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:34:08,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.11ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 86.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:34:08,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.67ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 84.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:34:08,051 INFO L158 Benchmark]: Boogie Preprocessor took 35.47ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 83.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:34:08,051 INFO L158 Benchmark]: IcfgBuilder took 441.87ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 58.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 06:34:08,051 INFO L158 Benchmark]: TraceAbstraction took 1324.38ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 38.0MB in the end (delta: 20.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2025-03-09 06:34:08,051 INFO L158 Benchmark]: Witness Printer took 70.03ms. Allocated memory is still 142.6MB. Free memory was 38.0MB in the beginning and 104.0MB in the end (delta: -66.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2025-03-09 06:34:08,052 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.11ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 86.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.67ms. Allocated memory is still 142.6MB. Free memory was 86.3MB in the beginning and 84.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.47ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 83.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 441.87ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 58.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1324.38ms. Allocated memory is still 142.6MB. Free memory was 58.0MB in the beginning and 38.0MB in the end (delta: 20.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 70.03ms. Allocated memory is still 142.6MB. Free memory was 38.0MB in the beginning and 104.0MB in the end (delta: -66.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 690]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 690]: 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, 63 locations, 62 edges, 9 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=1, 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2025-03-09 06:34:08,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE