./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8ab0bd5 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/weaver/chl-collitem-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 631177edb7ca950f3594c5b6eaac98148a00ee69e6a0cd62c1c95947fa56259c --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 21:42:18,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 21:42:18,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-13 21:42:18,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 21:42:18,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 21:42:18,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 21:42:18,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 21:42:18,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 21:42:18,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-13 21:42:18,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 21:42:18,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 21:42:18,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 21:42:18,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 21:42:18,376 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:42:18,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 21:42:18,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 21:42:18,376 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 ! call(reach_error())) ) 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 -> 631177edb7ca950f3594c5b6eaac98148a00ee69e6a0cd62c1c95947fa56259c [2025-03-13 21:42:18,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 21:42:18,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 21:42:18,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 21:42:18,585 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 21:42:18,585 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 21:42:18,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c [2025-03-13 21:42:19,721 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5bc8dc8a/befa86646e504df28047ceead427171c/FLAGa81ee026d [2025-03-13 21:42:19,952 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 21:42:19,953 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c [2025-03-13 21:42:19,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5bc8dc8a/befa86646e504df28047ceead427171c/FLAGa81ee026d [2025-03-13 21:42:20,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5bc8dc8a/befa86646e504df28047ceead427171c [2025-03-13 21:42:20,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 21:42:20,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 21:42:20,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 21:42:20,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 21:42:20,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 21:42:20,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8996ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20, skipping insertion in model container [2025-03-13 21:42:20,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 21:42:20,412 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c[3012,3025] [2025-03-13 21:42:20,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:42:20,426 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 21:42:20,444 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c[3012,3025] [2025-03-13 21:42:20,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:42:20,459 INFO L204 MainTranslator]: Completed translation [2025-03-13 21:42:20,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20 WrapperNode [2025-03-13 21:42:20,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 21:42:20,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 21:42:20,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 21:42:20,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 21:42:20,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,495 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 251 [2025-03-13 21:42:20,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 21:42:20,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 21:42:20,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 21:42:20,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 21:42:20,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,520 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-13 21:42:20,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,528 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 21:42:20,537 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 21:42:20,537 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 21:42:20,537 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 21:42:20,538 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (1/1) ... [2025-03-13 21:42:20,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:42:20,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 21:42:20,562 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) [2025-03-13 21:42:20,565 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 [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-13 21:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-13 21:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 21:42:20,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 21:42:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 21:42:20,580 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 21:42:20,643 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 21:42:20,645 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 21:42:20,967 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 21:42:20,968 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 21:42:20,968 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 21:42:21,310 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 21:42:21,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:42:21 BoogieIcfgContainer [2025-03-13 21:42:21,311 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 21:42:21,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 21:42:21,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 21:42:21,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 21:42:21,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 09:42:20" (1/3) ... [2025-03-13 21:42:21,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc45004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:42:21, skipping insertion in model container [2025-03-13 21:42:21,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:42:20" (2/3) ... [2025-03-13 21:42:21,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc45004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:42:21, skipping insertion in model container [2025-03-13 21:42:21,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:42:21" (3/3) ... [2025-03-13 21:42:21,318 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2025-03-13 21:42:21,330 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 21:42:21,331 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-collitem-symm.wvr.c that has 3 procedures, 19 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-13 21:42:21,331 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 21:42:21,404 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-13 21:42:21,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 18 transitions, 50 flow [2025-03-13 21:42:21,452 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2025-03-13 21:42:21,453 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 21:42:21,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 0/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-13 21:42:21,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 18 transitions, 50 flow [2025-03-13 21:42:21,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 15 transitions, 42 flow [2025-03-13 21:42:21,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:42:21,478 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;@7fcd73c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:42:21,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-13 21:42:21,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:42:21,493 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2025-03-13 21:42:21,493 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 21:42:21,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:42:21,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:42:21,494 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-13 21:42:21,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:42:21,498 INFO L85 PathProgramCache]: Analyzing trace with hash -864332432, now seen corresponding path program 1 times [2025-03-13 21:42:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:42:21,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361953056] [2025-03-13 21:42:21,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:42:21,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:42:21,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-13 21:42:21,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-13 21:42:21,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:42:21,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:42:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:42:23,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:42:23,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361953056] [2025-03-13 21:42:23,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361953056] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:42:23,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:42:23,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:42:23,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527072517] [2025-03-13 21:42:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:42:23,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:42:23,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:42:23,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:42:23,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:42:23,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 18 [2025-03-13 21:42:23,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-03-13 21:42:23,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:42:23,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 18 [2025-03-13 21:42:23,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:42:23,365 INFO L124 PetriNetUnfolderBase]: 27/71 cut-off events. [2025-03-13 21:42:23,365 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-03-13 21:42:23,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 71 events. 27/71 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 188 event pairs, 2 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 118. Up to 36 conditions per place. [2025-03-13 21:42:23,369 INFO L140 encePairwiseOnDemand]: 15/18 looper letters, 13 selfloop transitions, 1 changer transitions 8/25 dead transitions. [2025-03-13 21:42:23,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 115 flow [2025-03-13 21:42:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:42:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:42:23,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2025-03-13 21:42:23,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2025-03-13 21:42:23,380 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 42 flow. Second operand 4 states and 43 transitions. [2025-03-13 21:42:23,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 115 flow [2025-03-13 21:42:23,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 25 transitions, 101 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-13 21:42:23,386 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 41 flow [2025-03-13 21:42:23,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=41, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2025-03-13 21:42:23,391 INFO L279 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2025-03-13 21:42:23,392 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 41 flow [2025-03-13 21:42:23,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-03-13 21:42:23,392 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:42:23,392 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:42:23,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 21:42:23,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-13 21:42:23,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:42:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash -268933756, now seen corresponding path program 2 times [2025-03-13 21:42:23,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:42:23,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558497238] [2025-03-13 21:42:23,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 21:42:23,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:42:23,415 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 1 equivalence classes. [2025-03-13 21:42:23,453 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-13 21:42:23,453 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 21:42:23,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:42:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:42:24,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:42:24,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558497238] [2025-03-13 21:42:24,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558497238] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:42:24,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:42:24,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-13 21:42:24,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108290454] [2025-03-13 21:42:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:42:24,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-13 21:42:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:42:24,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-13 21:42:24,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-13 21:42:24,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 18 [2025-03-13 21:42:24,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 41 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-03-13 21:42:24,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:42:24,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 18 [2025-03-13 21:42:24,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:42:24,598 INFO L124 PetriNetUnfolderBase]: 17/49 cut-off events. [2025-03-13 21:42:24,599 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-03-13 21:42:24,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 49 events. 17/49 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 6 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 109. Up to 21 conditions per place. [2025-03-13 21:42:24,600 INFO L140 encePairwiseOnDemand]: 15/18 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2025-03-13 21:42:24,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 85 flow [2025-03-13 21:42:24,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 21:42:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 21:42:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2025-03-13 21:42:24,601 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2025-03-13 21:42:24,601 INFO L175 Difference]: Start difference. First operand has 23 places, 15 transitions, 41 flow. Second operand 4 states and 38 transitions. [2025-03-13 21:42:24,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 85 flow [2025-03-13 21:42:24,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 83 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 21:42:24,602 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2025-03-13 21:42:24,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2025-03-13 21:42:24,602 INFO L279 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2025-03-13 21:42:24,603 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2025-03-13 21:42:24,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-03-13 21:42:24,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-13 21:42:24,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-03-13 21:42:24,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-13 21:42:24,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 21:42:24,606 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-03-13 21:42:24,610 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 21:42:24,610 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 21:42:24,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 09:42:24 BasicIcfg [2025-03-13 21:42:24,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 21:42:24,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 21:42:24,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 21:42:24,616 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 21:42:24,616 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:42:21" (3/4) ... [2025-03-13 21:42:24,618 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-13 21:42:24,620 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-13 21:42:24,621 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-13 21:42:24,624 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2025-03-13 21:42:24,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-13 21:42:24,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-13 21:42:24,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-13 21:42:24,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 21:42:24,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 21:42:24,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 21:42:24,679 INFO L158 Benchmark]: Toolchain (without parser) took 4397.31ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 107.0MB in the beginning and 258.7MB in the end (delta: -151.7MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. [2025-03-13 21:42:24,679 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:42:24,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.59ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 94.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 21:42:24,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 21:42:24,683 INFO L158 Benchmark]: Boogie Preprocessor took 40.07ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 90.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:42:24,683 INFO L158 Benchmark]: IcfgBuilder took 774.92ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 40.8MB in the end (delta: 49.7MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2025-03-13 21:42:24,683 INFO L158 Benchmark]: TraceAbstraction took 3301.41ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 40.0MB in the beginning and 263.5MB in the end (delta: -223.4MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. [2025-03-13 21:42:24,683 INFO L158 Benchmark]: Witness Printer took 63.47ms. Allocated memory is still 453.0MB. Free memory was 263.5MB in the beginning and 258.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 21:42:24,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.59ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 94.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.07ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 90.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 774.92ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 40.8MB in the end (delta: 49.7MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3301.41ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 40.0MB in the beginning and 263.5MB in the end (delta: -223.4MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. * Witness Printer took 63.47ms. Allocated memory is still 453.0MB. Free memory was 263.5MB in the beginning and 258.7MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-13 21:42:24,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE