./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-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/unroll-5.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:09:40,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:09:40,876 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:09:40,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:09:40,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:09:40,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:09:40,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:09:40,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:09:40,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:09:40,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:09:40,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:09:40,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:09:40,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:09:40,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:09:40,918 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:09:40,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:09:40,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:09:40,919 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:09:40,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:09:40,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:09:40,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:09:40,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:09:40,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:09:40,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:09:40,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:09:40,923 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:09:40,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:09:40,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:09:40,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:09:40,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:09:40,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:09:40,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:09:40,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:09:40,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:09:40,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:09:40,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:09:40,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:09:40,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:09:40,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:09:40,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:09:40,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:09:40,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:09:40,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:09:40,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:09:40,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 [2024-10-12 00:09:41,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:09:41,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:09:41,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:09:41,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:09:41,197 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:09:41,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-5.wvr.c [2024-10-12 00:09:42,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:09:43,075 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:09:43,075 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-5.wvr.c [2024-10-12 00:09:43,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/88131e2a7/cf49eea3d12c43069f548ca5b823ca4a/FLAG9eb84e090 [2024-10-12 00:09:43,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/88131e2a7/cf49eea3d12c43069f548ca5b823ca4a [2024-10-12 00:09:43,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:09:43,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:09:43,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:09:43,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:09:43,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:09:43,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165c9086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43, skipping insertion in model container [2024-10-12 00:09:43,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:09:43,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:09:43,792 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:09:43,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:09:43,836 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:09:43,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43 WrapperNode [2024-10-12 00:09:43,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:09:43,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:09:43,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:09:43,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:09:43,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,892 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 161 [2024-10-12 00:09:43,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:09:43,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:09:43,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:09:43,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:09:43,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,928 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 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]. [2024-10-12 00:09:43,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:09:43,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:09:43,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:09:43,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:09:43,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (1/1) ... [2024-10-12 00:09:43,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:09:43,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:09:43,993 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) [2024-10-12 00:09:43,998 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 [2024-10-12 00:09:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:09:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:09:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:09:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:09:44,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:09:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:09:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 00:09:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:09:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 00:09:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-12 00:09:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:09:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:09:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:09:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 00:09:44,056 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:09:44,159 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:09:44,161 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:09:44,475 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:09:44,476 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:09:44,702 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:09:44,702 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-12 00:09:44,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:09:44 BoogieIcfgContainer [2024-10-12 00:09:44,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:09:44,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:09:44,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:09:44,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:09:44,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:09:43" (1/3) ... [2024-10-12 00:09:44,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c295360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:09:44, skipping insertion in model container [2024-10-12 00:09:44,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:09:43" (2/3) ... [2024-10-12 00:09:44,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c295360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:09:44, skipping insertion in model container [2024-10-12 00:09:44,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:09:44" (3/3) ... [2024-10-12 00:09:44,716 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2024-10-12 00:09:44,753 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:09:44,757 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-12 00:09:44,757 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:09:44,819 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-12 00:09:44,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 58 flow [2024-10-12 00:09:44,936 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-10-12 00:09:44,937 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-12 00:09:44,943 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. [2024-10-12 00:09:44,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 58 flow [2024-10-12 00:09:44,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 6 transitions, 12 flow [2024-10-12 00:09:44,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:09:44,971 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;@765cf3dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:09:44,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-12 00:09:44,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:09:44,975 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-10-12 00:09:44,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:09:44,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:09:44,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-12 00:09:44,976 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)] === [2024-10-12 00:09:44,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:09:44,986 INFO L85 PathProgramCache]: Analyzing trace with hash 519979, now seen corresponding path program 1 times [2024-10-12 00:09:45,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:09:45,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868988494] [2024-10-12 00:09:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:09:45,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:09:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:09:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:45,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:09:45,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868988494] [2024-10-12 00:09:45,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868988494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:09:45,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:09:45,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:09:45,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987093723] [2024-10-12 00:09:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:09:45,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:09:45,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:09:45,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:09:45,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:09:45,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-12 00:09:45,360 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) [2024-10-12 00:09:45,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:09:45,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-12 00:09:45,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:09:45,404 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-10-12 00:09:45,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:09:45,407 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. [2024-10-12 00:09:45,409 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 4 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2024-10-12 00:09:45,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 8 transitions, 30 flow [2024-10-12 00:09:45,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:09:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:09:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-12 00:09:45,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23863636363636365 [2024-10-12 00:09:45,427 INFO L175 Difference]: Start difference. First operand has 6 places, 6 transitions, 12 flow. Second operand 4 states and 21 transitions. [2024-10-12 00:09:45,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 8 transitions, 30 flow [2024-10-12 00:09:45,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 8 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:09:45,434 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 34 flow [2024-10-12 00:09:45,436 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} [2024-10-12 00:09:45,443 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 5 predicate places. [2024-10-12 00:09:45,443 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 34 flow [2024-10-12 00:09:45,443 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) [2024-10-12 00:09:45,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:09:45,444 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-12 00:09:45,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:09:45,444 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)] === [2024-10-12 00:09:45,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:09:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1688668270, now seen corresponding path program 1 times [2024-10-12 00:09:45,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:09:45,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157754545] [2024-10-12 00:09:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:09:45,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:09:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:09:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:45,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:09:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157754545] [2024-10-12 00:09:45,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157754545] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:09:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35545067] [2024-10-12 00:09:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:09:45,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:09:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:09:45,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:09:45,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 00:09:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:09:45,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:09:45,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:09:45,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:45,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:09:45,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35545067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:09:45,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:09:45,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-12 00:09:45,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34335385] [2024-10-12 00:09:45,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:09:45,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:09:45,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:09:45,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:09:45,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:09:45,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-12 00:09:45,766 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) [2024-10-12 00:09:45,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:09:45,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-12 00:09:45,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:09:45,800 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-10-12 00:09:45,800 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-12 00:09:45,801 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. [2024-10-12 00:09:45,801 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 1 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2024-10-12 00:09:45,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 42 flow [2024-10-12 00:09:45,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:09:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:09:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-10-12 00:09:45,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1893939393939394 [2024-10-12 00:09:45,803 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 34 flow. Second operand 6 states and 25 transitions. [2024-10-12 00:09:45,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 42 flow [2024-10-12 00:09:45,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:09:45,805 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 38 flow [2024-10-12 00:09:45,805 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} [2024-10-12 00:09:45,805 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 8 predicate places. [2024-10-12 00:09:45,806 INFO L471 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 38 flow [2024-10-12 00:09:45,806 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) [2024-10-12 00:09:45,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:09:45,806 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-12 00:09:45,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 00:09:46,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:09:46,012 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)] === [2024-10-12 00:09:46,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:09:46,012 INFO L85 PathProgramCache]: Analyzing trace with hash -809108308, now seen corresponding path program 1 times [2024-10-12 00:09:46,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:09:46,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568372940] [2024-10-12 00:09:46,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:09:46,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:09:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:09:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:46,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:09:46,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568372940] [2024-10-12 00:09:46,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568372940] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:09:46,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463185611] [2024-10-12 00:09:46,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:09:46,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:09:46,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:09:46,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:09:46,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 00:09:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:09:46,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:09:46,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:09:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:46,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:09:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:46,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463185611] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:09:46,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:09:46,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-12 00:09:46,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754068213] [2024-10-12 00:09:46,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:09:46,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 00:09:46,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:09:46,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 00:09:46,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-12 00:09:46,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-12 00:09:46,292 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) [2024-10-12 00:09:46,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:09:46,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-12 00:09:46,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:09:46,351 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2024-10-12 00:09:46,351 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-12 00:09:46,351 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. [2024-10-12 00:09:46,352 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 3 selfloop transitions, 9 changer transitions 0/13 dead transitions. [2024-10-12 00:09:46,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 98 flow [2024-10-12 00:09:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:09:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:09:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2024-10-12 00:09:46,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.20454545454545456 [2024-10-12 00:09:46,378 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 38 flow. Second operand 10 states and 45 transitions. [2024-10-12 00:09:46,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 98 flow [2024-10-12 00:09:46,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 72 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-12 00:09:46,379 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 82 flow [2024-10-12 00:09:46,380 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} [2024-10-12 00:09:46,380 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 15 predicate places. [2024-10-12 00:09:46,380 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 82 flow [2024-10-12 00:09:46,381 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) [2024-10-12 00:09:46,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:09:46,381 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-12 00:09:46,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 00:09:46,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:09:46,587 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)] === [2024-10-12 00:09:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:09:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1429762803, now seen corresponding path program 2 times [2024-10-12 00:09:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:09:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333802560] [2024-10-12 00:09:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:09:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:09:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:09:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:09:46,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:09:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333802560] [2024-10-12 00:09:46,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333802560] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:09:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868286032] [2024-10-12 00:09:46,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:09:46,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:09:46,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:09:46,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:09:46,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 00:09:46,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 00:09:46,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:09:46,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:09:46,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:09:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 00:09:46,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:09:46,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 00:09:46,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868286032] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:09:46,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:09:46,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-12 00:09:46,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420579417] [2024-10-12 00:09:46,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:09:46,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 00:09:46,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:09:46,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 00:09:46,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-12 00:09:47,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-12 00:09:47,001 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) [2024-10-12 00:09:47,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:09:47,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-12 00:09:47,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:09:47,158 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2024-10-12 00:09:47,158 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-10-12 00:09:47,158 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. [2024-10-12 00:09:47,158 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-10-12 00:09:47,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 110 flow [2024-10-12 00:09:47,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 00:09:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-12 00:09:47,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 57 transitions. [2024-10-12 00:09:47,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.18506493506493507 [2024-10-12 00:09:47,160 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 82 flow. Second operand 14 states and 57 transitions. [2024-10-12 00:09:47,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 110 flow [2024-10-12 00:09:47,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 14 transitions, 88 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-12 00:09:47,164 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-10-12 00:09:47,164 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} [2024-10-12 00:09:47,165 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 21 predicate places. [2024-10-12 00:09:47,166 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-10-12 00:09:47,166 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) [2024-10-12 00:09:47,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-12 00:09:47,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-12 00:09:47,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-12 00:09:47,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-12 00:09:47,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 00:09:47,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:09:47,372 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-12 00:09:47,376 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-12 00:09:47,376 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 00:09:47,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 12:09:47 BasicIcfg [2024-10-12 00:09:47,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 00:09:47,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:09:47,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:09:47,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:09:47,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:09:44" (3/4) ... [2024-10-12 00:09:47,388 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 00:09:47,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-12 00:09:47,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-12 00:09:47,397 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-10-12 00:09:47,398 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-12 00:09:47,398 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-12 00:09:47,398 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-12 00:09:47,484 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:09:47,485 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 00:09:47,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:09:47,486 INFO L158 Benchmark]: Toolchain (without parser) took 4042.57ms. Allocated memory is still 144.7MB. Free memory was 77.4MB in the beginning and 56.5MB in the end (delta: 20.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-10-12 00:09:47,486 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:09:47,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.18ms. Allocated memory is still 144.7MB. Free memory was 77.3MB in the beginning and 107.9MB in the end (delta: -30.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-10-12 00:09:47,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.07ms. Allocated memory is still 144.7MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:09:47,487 INFO L158 Benchmark]: Boogie Preprocessor took 56.52ms. Allocated memory is still 144.7MB. Free memory was 105.8MB in the beginning and 103.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:09:47,488 INFO L158 Benchmark]: RCFGBuilder took 751.64ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 52.3MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-10-12 00:09:47,488 INFO L158 Benchmark]: TraceAbstraction took 2679.92ms. Allocated memory is still 144.7MB. Free memory was 51.8MB in the beginning and 61.8MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:09:47,488 INFO L158 Benchmark]: Witness Printer took 99.86ms. Allocated memory is still 144.7MB. Free memory was 61.8MB in the beginning and 56.5MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 00:09:47,489 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.18ms. Allocated memory is still 144.7MB. Free memory was 77.3MB in the beginning and 107.9MB in the end (delta: -30.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.07ms. Allocated memory is still 144.7MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.52ms. Allocated memory is still 144.7MB. Free memory was 105.8MB in the beginning and 103.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 751.64ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 52.3MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2679.92ms. Allocated memory is still 144.7MB. Free memory was 51.8MB in the beginning and 61.8MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 99.86ms. Allocated memory is still 144.7MB. Free memory was 61.8MB in the beginning and 56.5MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: 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: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.1s 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, 0.3s 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, 0.2s SatisfiabilityAnalysisTime, 0.8s 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! [2024-10-12 00:09:47,523 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