./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-semi1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-semi1.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 9a7d6fb4818c771ee6598f9c9b7d2b5b977c749bbed873b12531900cde741cb6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:36:54,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:36:54,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:36:54,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:36:54,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:36:54,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:36:54,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:36:54,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:36:54,981 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:36:54,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:36:54,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:36:54,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:36:54,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:36:54,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:36:54,986 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:36:54,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:36:54,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:36:54,987 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:36:54,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:36:54,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:36:54,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:36:54,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:36:54,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:36:54,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:36:54,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:36:54,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:36:54,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:36:54,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:36:54,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:36:54,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:36:54,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:36:54,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:36:54,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:36:54,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:36:54,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:36:54,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:36:54,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:36:54,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:36:54,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:36:54,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:36:54,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:36:54,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:36:54,995 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a7d6fb4818c771ee6598f9c9b7d2b5b977c749bbed873b12531900cde741cb6 [2024-10-11 14:36:55,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:36:55,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:36:55,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:36:55,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:36:55,296 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:36:55,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-semi1.wvr.c [2024-10-11 14:36:56,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:36:56,990 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:36:56,994 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-semi1.wvr.c [2024-10-11 14:36:57,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9a2849f8a/3b5be43c5d2e428db8ffc096b90a2a72/FLAG6b4039d0e [2024-10-11 14:36:57,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9a2849f8a/3b5be43c5d2e428db8ffc096b90a2a72 [2024-10-11 14:36:57,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:36:57,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:36:57,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:36:57,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:36:57,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:36:57,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a26a0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57, skipping insertion in model container [2024-10-11 14:36:57,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:36:57,264 WARN L248 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/test-semi1.wvr.c[2005,2018] [2024-10-11 14:36:57,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:36:57,276 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:36:57,292 WARN L248 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/test-semi1.wvr.c[2005,2018] [2024-10-11 14:36:57,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:36:57,309 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:36:57,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57 WrapperNode [2024-10-11 14:36:57,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:36:57,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:36:57,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:36:57,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:36:57,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,346 INFO L138 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2024-10-11 14:36:57,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:36:57,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:36:57,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:36:57,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:36:57,377 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,379 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,394 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]. [2024-10-11 14:36:57,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,402 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:36:57,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:36:57,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:36:57,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:36:57,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (1/1) ... [2024-10-11 14:36:57,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:36:57,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:36:57,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:36:57,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:36:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:36:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 14:36:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 14:36:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 14:36:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 14:36:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:36:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 14:36:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 14:36:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:36:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:36:57,533 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:36:57,625 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:36:57,627 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:36:57,764 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:36:57,764 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:36:57,903 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:36:57,903 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:36:57,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:36:57 BoogieIcfgContainer [2024-10-11 14:36:57,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:36:57,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:36:57,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:36:57,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:36:57,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:36:57" (1/3) ... [2024-10-11 14:36:57,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4329a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:36:57, skipping insertion in model container [2024-10-11 14:36:57,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:36:57" (2/3) ... [2024-10-11 14:36:57,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4329a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:36:57, skipping insertion in model container [2024-10-11 14:36:57,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:36:57" (3/3) ... [2024-10-11 14:36:57,915 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2024-10-11 14:36:57,931 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:36:57,933 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:36:57,933 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:36:57,979 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 14:36:58,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 18 transitions, 50 flow [2024-10-11 14:36:58,042 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-10-11 14:36:58,042 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:36:58,049 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 13 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. [2024-10-11 14:36:58,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 18 transitions, 50 flow [2024-10-11 14:36:58,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 15 transitions, 42 flow [2024-10-11 14:36:58,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:36:58,071 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;@1059c616, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:36:58,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-11 14:36:58,080 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:36:58,080 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-10-11 14:36:58,080 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:36:58,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:36:58,081 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:36:58,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:36:58,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:36:58,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1597897281, now seen corresponding path program 1 times [2024-10-11 14:36:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:36:58,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665983904] [2024-10-11 14:36:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:36:58,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:36:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:36:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:36:58,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:36:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665983904] [2024-10-11 14:36:58,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665983904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:36:58,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:36:58,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:36:58,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729176363] [2024-10-11 14:36:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:36:58,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:36:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:36:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:36:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:36:58,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 18 [2024-10-11 14:36:58,625 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) [2024-10-11 14:36:58,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:36:58,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 18 [2024-10-11 14:36:58,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:36:58,720 INFO L124 PetriNetUnfolderBase]: 27/71 cut-off events. [2024-10-11 14:36:58,721 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 14:36:58,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 71 events. 27/71 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 180 event pairs, 9 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 118. Up to 28 conditions per place. [2024-10-11 14:36:58,725 INFO L140 encePairwiseOnDemand]: 14/18 looper letters, 11 selfloop transitions, 2 changer transitions 11/27 dead transitions. [2024-10-11 14:36:58,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 126 flow [2024-10-11 14:36:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:36:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:36:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-10-11 14:36:58,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-11 14:36:58,742 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 42 flow. Second operand 4 states and 45 transitions. [2024-10-11 14:36:58,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 126 flow [2024-10-11 14:36:58,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 14:36:58,750 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 44 flow [2024-10-11 14:36:58,752 INFO L260 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2024-10-11 14:36:58,756 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2024-10-11 14:36:58,756 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 44 flow [2024-10-11 14:36:58,756 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) [2024-10-11 14:36:58,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:36:58,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:36:58,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:36:58,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:36:58,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:36:58,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1636418345, now seen corresponding path program 2 times [2024-10-11 14:36:58,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:36:58,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136374541] [2024-10-11 14:36:58,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:36:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:36:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:36:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:36:58,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:36:58,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136374541] [2024-10-11 14:36:58,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136374541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:36:58,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:36:58,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:36:58,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906262997] [2024-10-11 14:36:58,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:36:58,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:36:58,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:36:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:36:58,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:36:58,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 18 [2024-10-11 14:36:58,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 44 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) [2024-10-11 14:36:58,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:36:58,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 18 [2024-10-11 14:36:58,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:36:58,986 INFO L124 PetriNetUnfolderBase]: 11/33 cut-off events. [2024-10-11 14:36:58,986 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 14:36:58,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 33 events. 11/33 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 4 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 45. Up to 25 conditions per place. [2024-10-11 14:36:58,987 INFO L140 encePairwiseOnDemand]: 14/18 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-10-11 14:36:58,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 15 transitions, 68 flow [2024-10-11 14:36:58,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:36:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:36:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2024-10-11 14:36:58,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-10-11 14:36:58,989 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 44 flow. Second operand 4 states and 34 transitions. [2024-10-11 14:36:58,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 15 transitions, 68 flow [2024-10-11 14:36:58,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 64 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:36:58,990 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2024-10-11 14:36:58,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=17, 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=20, PETRI_TRANSITIONS=0} [2024-10-11 14:36:58,991 INFO L277 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2024-10-11 14:36:58,991 INFO L471 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2024-10-11 14:36:58,991 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) [2024-10-11 14:36:58,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-11 14:36:58,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-10-11 14:36:58,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-11 14:36:58,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:36:58,997 INFO L407 BasicCegarLoop]: Path program histogram: [2] [2024-10-11 14:36:59,003 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:36:59,003 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:36:59,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:36:59 BasicIcfg [2024-10-11 14:36:59,021 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:36:59,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:36:59,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:36:59,022 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:36:59,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:36:57" (3/4) ... [2024-10-11 14:36:59,024 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:36:59,026 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 14:36:59,026 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 14:36:59,031 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-10-11 14:36:59,031 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-11 14:36:59,031 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 14:36:59,032 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 14:36:59,113 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:36:59,113 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:36:59,113 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:36:59,114 INFO L158 Benchmark]: Toolchain (without parser) took 2089.20ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 89.2MB in the beginning and 175.4MB in the end (delta: -86.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:36:59,115 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:36:59,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.94ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 76.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 14:36:59,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 159.4MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:36:59,119 INFO L158 Benchmark]: Boogie Preprocessor took 70.86ms. Allocated memory is still 159.4MB. Free memory was 75.0MB in the beginning and 128.1MB in the end (delta: -53.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-10-11 14:36:59,119 INFO L158 Benchmark]: RCFGBuilder took 484.65ms. Allocated memory is still 159.4MB. Free memory was 128.1MB in the beginning and 106.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 14:36:59,120 INFO L158 Benchmark]: TraceAbstraction took 1113.88ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 105.6MB in the beginning and 179.6MB in the end (delta: -74.0MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2024-10-11 14:36:59,120 INFO L158 Benchmark]: Witness Printer took 92.26ms. Allocated memory is still 209.7MB. Free memory was 179.6MB in the beginning and 175.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:36:59,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.94ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 76.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 159.4MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.86ms. Allocated memory is still 159.4MB. Free memory was 75.0MB in the beginning and 128.1MB in the end (delta: -53.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * RCFGBuilder took 484.65ms. Allocated memory is still 159.4MB. Free memory was 128.1MB in the beginning and 106.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1113.88ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 105.6MB in the beginning and 179.6MB in the end (delta: -74.0MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * Witness Printer took 92.26ms. Allocated memory is still 209.7MB. Free memory was 179.6MB in the beginning and 175.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=1, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 14:36:59,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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