./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c7125507f231f46c946ebcd57e8b56859ee58b969eed99ccdbcf88141d9e219 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:45:16,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:45:17,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:45:17,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:45:17,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:45:17,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:45:17,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:45:17,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:45:17,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:45:17,067 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:45:17,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:45:17,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:45:17,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:45:17,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:45:17,071 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:45:17,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:45:17,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:45:17,072 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:45:17,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:45:17,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:45:17,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:45:17,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:45:17,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:45:17,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:45:17,077 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:45:17,077 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:45:17,077 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:45:17,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:45:17,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:45:17,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:45:17,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:45:17,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:45:17,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:45:17,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:45:17,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:45:17,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:45:17,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:45:17,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:45:17,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:45:17,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:45:17,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:45:17,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:45:17,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:45:17,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:45:17,092 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7125507f231f46c946ebcd57e8b56859ee58b969eed99ccdbcf88141d9e219 [2024-10-24 23:45:17,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:45:17,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:45:17,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:45:17,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:45:17,384 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:45:17,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-2.wvr.c [2024-10-24 23:45:18,796 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:45:18,979 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:45:18,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-2.wvr.c [2024-10-24 23:45:18,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c767db87/d61b275f84994cbd9298c95c91e5857c/FLAG99fca9d8b [2024-10-24 23:45:18,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c767db87/d61b275f84994cbd9298c95c91e5857c [2024-10-24 23:45:18,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:45:19,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:45:19,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:45:19,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:45:19,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:45:19,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:45:18" (1/1) ... [2024-10-24 23:45:19,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9e4ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19, skipping insertion in model container [2024-10-24 23:45:19,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:45:18" (1/1) ... [2024-10-24 23:45:19,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:45:19,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:45:19,240 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:45:19,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:45:19,274 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:45:19,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19 WrapperNode [2024-10-24 23:45:19,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:45:19,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:45:19,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:45:19,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:45:19,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,311 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 131 [2024-10-24 23:45:19,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:45:19,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:45:19,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:45:19,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:45:19,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,345 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-24 23:45:19,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:45:19,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:45:19,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:45:19,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:45:19,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (1/1) ... [2024-10-24 23:45:19,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:45:19,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:45:19,402 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) [2024-10-24 23:45:19,409 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 [2024-10-24 23:45:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:45:19,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 23:45:19,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 23:45:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 23:45:19,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 23:45:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:45:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:45:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:45:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:45:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 23:45:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:45:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:45:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:45:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:45:19,459 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:45:19,580 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:45:19,582 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:45:19,875 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:45:19,875 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:45:20,112 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:45:20,112 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 23:45:20,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:20 BoogieIcfgContainer [2024-10-24 23:45:20,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:45:20,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:45:20,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:45:20,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:45:20,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:45:18" (1/3) ... [2024-10-24 23:45:20,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222356f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:45:20, skipping insertion in model container [2024-10-24 23:45:20,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:19" (2/3) ... [2024-10-24 23:45:20,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222356f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:45:20, skipping insertion in model container [2024-10-24 23:45:20,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:20" (3/3) ... [2024-10-24 23:45:20,125 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2024-10-24 23:45:20,143 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:45:20,143 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 23:45:20,144 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:45:20,197 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 23:45:20,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 58 flow [2024-10-24 23:45:20,245 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-10-24 23:45:20,246 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 23:45:20,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 3/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 14. Up to 2 conditions per place. [2024-10-24 23:45:20,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 58 flow [2024-10-24 23:45:20,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 6 transitions, 12 flow [2024-10-24 23:45:20,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:45:20,269 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;@4fb667ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:45:20,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 23:45:20,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:45:20,272 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-10-24 23:45:20,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:45:20,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:20,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 23:45:20,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 23:45:20,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash 422085, now seen corresponding path program 1 times [2024-10-24 23:45:20,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:20,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063506334] [2024-10-24 23:45:20,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:20,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:20,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:20,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063506334] [2024-10-24 23:45:20,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063506334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:45:20,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:45:20,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:45:20,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343071024] [2024-10-24 23:45:20,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:45:20,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:45:20,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:20,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:45:20,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:45:20,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-24 23:45:20,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 6 places, 6 transitions, 12 flow. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-24 23:45:20,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:20,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-24 23:45:20,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:45:20,707 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-10-24 23:45:20,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:45:20,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 9 events. 1/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-10-24 23:45:20,712 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 4 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2024-10-24 23:45:20,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 8 transitions, 30 flow [2024-10-24 23:45:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:45:20,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:45:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-24 23:45:20,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23863636363636365 [2024-10-24 23:45:20,728 INFO L175 Difference]: Start difference. First operand has 6 places, 6 transitions, 12 flow. Second operand 4 states and 21 transitions. [2024-10-24 23:45:20,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 8 transitions, 30 flow [2024-10-24 23:45:20,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 8 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:45:20,731 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 34 flow [2024-10-24 23:45:20,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2024-10-24 23:45:20,735 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 5 predicate places. [2024-10-24 23:45:20,736 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 34 flow [2024-10-24 23:45:20,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-24 23:45:20,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:20,736 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-24 23:45:20,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:45:20,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 23:45:20,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:20,738 INFO L85 PathProgramCache]: Analyzing trace with hash -310152295, now seen corresponding path program 1 times [2024-10-24 23:45:20,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:20,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210298062] [2024-10-24 23:45:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:20,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:20,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:20,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210298062] [2024-10-24 23:45:20,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210298062] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:45:20,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070930103] [2024-10-24 23:45:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:20,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:45:20,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:45:20,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:45:20,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 23:45:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:20,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:45:21,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:45:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:21,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:45:21,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070930103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:45:21,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:45:21,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 23:45:21,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156291351] [2024-10-24 23:45:21,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:45:21,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:45:21,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:21,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:45:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:45:21,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-24 23:45:21,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 34 flow. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-10-24 23:45:21,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:21,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-24 23:45:21,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:45:21,122 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-10-24 23:45:21,123 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 23:45:21,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 8 events. 1/8 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 10. Up to 4 conditions per place. [2024-10-24 23:45:21,124 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 1 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2024-10-24 23:45:21,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 42 flow [2024-10-24 23:45:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:45:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:45:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-10-24 23:45:21,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1893939393939394 [2024-10-24 23:45:21,126 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 34 flow. Second operand 6 states and 25 transitions. [2024-10-24 23:45:21,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 42 flow [2024-10-24 23:45:21,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:45:21,128 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 38 flow [2024-10-24 23:45:21,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=38, PETRI_PLACES=14, PETRI_TRANSITIONS=7} [2024-10-24 23:45:21,129 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 8 predicate places. [2024-10-24 23:45:21,129 INFO L471 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 38 flow [2024-10-24 23:45:21,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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) [2024-10-24 23:45:21,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:21,130 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-24 23:45:21,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 23:45:21,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:45:21,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 23:45:21,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:21,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1024786135, now seen corresponding path program 1 times [2024-10-24 23:45:21,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:21,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950343893] [2024-10-24 23:45:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:21,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:21,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:21,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:21,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950343893] [2024-10-24 23:45:21,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950343893] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:45:21,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787251100] [2024-10-24 23:45:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:21,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:45:21,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:45:21,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:45:21,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 23:45:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:21,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:45:21,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:45:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:21,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:45:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:21,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787251100] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:45:21,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:45:21,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-24 23:45:21,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457642095] [2024-10-24 23:45:21,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:45:21,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 23:45:21,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:21,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 23:45:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-24 23:45:21,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-24 23:45:21,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 38 flow. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2024-10-24 23:45:21,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:21,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-24 23:45:21,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:45:21,732 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2024-10-24 23:45:21,733 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-24 23:45:21,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 17 events. 1/17 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 8. Up to 7 conditions per place. [2024-10-24 23:45:21,735 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 3 selfloop transitions, 9 changer transitions 0/13 dead transitions. [2024-10-24 23:45:21,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 98 flow [2024-10-24 23:45:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 23:45:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 23:45:21,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2024-10-24 23:45:21,739 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.20454545454545456 [2024-10-24 23:45:21,739 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 38 flow. Second operand 10 states and 45 transitions. [2024-10-24 23:45:21,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 98 flow [2024-10-24 23:45:21,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 72 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-24 23:45:21,742 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 82 flow [2024-10-24 23:45:21,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=82, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2024-10-24 23:45:21,743 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 15 predicate places. [2024-10-24 23:45:21,744 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 82 flow [2024-10-24 23:45:21,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2024-10-24 23:45:21,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:45:21,745 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-24 23:45:21,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 23:45:21,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 23:45:21,946 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 23:45:21,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:45:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash 41871997, now seen corresponding path program 2 times [2024-10-24 23:45:21,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:45:21,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123461125] [2024-10-24 23:45:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:45:21,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:45:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:45:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:45:22,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:45:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123461125] [2024-10-24 23:45:22,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123461125] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:45:22,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994303460] [2024-10-24 23:45:22,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:45:22,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:45:22,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:45:22,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:45:22,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 23:45:22,240 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 23:45:22,240 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:45:22,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 23:45:22,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:45:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:45:22,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:45:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 23:45:22,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994303460] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:45:22,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:45:22,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-24 23:45:22,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866080897] [2024-10-24 23:45:22,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:45:22,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 23:45:22,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:45:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 23:45:22,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-24 23:45:22,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-24 23:45:22,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 82 flow. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 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) [2024-10-24 23:45:22,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:45:22,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-24 23:45:22,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:45:22,521 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2024-10-24 23:45:22,522 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-10-24 23:45:22,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 19 events. 1/19 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/21 useless extension candidates. Maximal degree in co-relation 38. Up to 7 conditions per place. [2024-10-24 23:45:22,522 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-10-24 23:45:22,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 110 flow [2024-10-24 23:45:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 23:45:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 23:45:22,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 57 transitions. [2024-10-24 23:45:22,525 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.18506493506493507 [2024-10-24 23:45:22,525 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 82 flow. Second operand 14 states and 57 transitions. [2024-10-24 23:45:22,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 110 flow [2024-10-24 23:45:22,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 14 transitions, 88 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-24 23:45:22,526 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-10-24 23:45:22,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2024-10-24 23:45:22,527 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 21 predicate places. [2024-10-24 23:45:22,527 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-10-24 23:45:22,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 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) [2024-10-24 23:45:22,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-24 23:45:22,531 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-24 23:45:22,531 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-24 23:45:22,531 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-24 23:45:22,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 23:45:22,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:45:22,736 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-24 23:45:22,740 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:45:22,740 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:45:22,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:45:22 BasicIcfg [2024-10-24 23:45:22,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:45:22,749 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:45:22,749 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:45:22,749 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:45:22,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:20" (3/4) ... [2024-10-24 23:45:22,751 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:45:22,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-24 23:45:22,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-24 23:45:22,765 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-10-24 23:45:22,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-24 23:45:22,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 23:45:22,768 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 23:45:22,848 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:45:22,849 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:45:22,849 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:45:22,849 INFO L158 Benchmark]: Toolchain (without parser) took 3849.01ms. Allocated memory was 184.5MB in the beginning and 257.9MB in the end (delta: 73.4MB). Free memory was 129.2MB in the beginning and 106.0MB in the end (delta: 23.2MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,850 INFO L158 Benchmark]: CDTParser took 1.18ms. Allocated memory is still 184.5MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:45:22,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.47ms. Allocated memory is still 184.5MB. Free memory was 128.8MB in the beginning and 114.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.29ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,850 INFO L158 Benchmark]: Boogie Preprocessor took 54.55ms. Allocated memory is still 184.5MB. Free memory was 112.8MB in the beginning and 110.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,850 INFO L158 Benchmark]: RCFGBuilder took 745.07ms. Allocated memory is still 184.5MB. Free memory was 110.3MB in the beginning and 70.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,851 INFO L158 Benchmark]: TraceAbstraction took 2629.91ms. Allocated memory was 184.5MB in the beginning and 257.9MB in the end (delta: 73.4MB). Free memory was 70.0MB in the beginning and 111.2MB in the end (delta: -41.2MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,851 INFO L158 Benchmark]: Witness Printer took 100.26ms. Allocated memory is still 257.9MB. Free memory was 111.2MB in the beginning and 106.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:45:22,852 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18ms. Allocated memory is still 184.5MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.47ms. Allocated memory is still 184.5MB. Free memory was 128.8MB in the beginning and 114.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.29ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.55ms. Allocated memory is still 184.5MB. Free memory was 112.8MB in the beginning and 110.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 745.07ms. Allocated memory is still 184.5MB. Free memory was 110.3MB in the beginning and 70.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2629.91ms. Allocated memory was 184.5MB in the beginning and 257.9MB in the end (delta: 73.4MB). Free memory was 70.0MB in the beginning and 111.2MB in the end (delta: -41.2MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Witness Printer took 100.26ms. Allocated memory is still 257.9MB. Free memory was 111.2MB in the beginning and 106.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 6 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=3, InterpolantAutomatonStates: 34, 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, 0.9s InterpolantComputationTime, 61 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 9 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 46/103 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:45:22,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE