./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-cond-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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-cond-3.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 9fb4c28a8a216c266c6ae14d377c8e26c68bb16bf7c2fe2809f039d12d6c4b55 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:06:20,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:06:20,136 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-15 00:06:20,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:06:20,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:06:20,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:06:20,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:06:20,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:06:20,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:06:20,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:06:20,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 00:06:20,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 00:06:20,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:06:20,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:06:20,170 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:06:20,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:06:20,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 00:06:20,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 00:06:20,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:06:20,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 00:06:20,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:06:20,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 00:06:20,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 00:06:20,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 00:06:20,176 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:06:20,176 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-15 00:06:20,177 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:06:20,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 00:06:20,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:06:20,177 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:06:20,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:06:20,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:06:20,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 00:06:20,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 00:06:20,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 00:06:20,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:06:20,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 00:06:20,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 00:06:20,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:06:20,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 00:06:20,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 00:06:20,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 00:06:20,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 00:06:20,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 00:06:20,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fb4c28a8a216c266c6ae14d377c8e26c68bb16bf7c2fe2809f039d12d6c4b55 [2024-10-15 00:06:20,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:06:20,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:06:20,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:06:20,421 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:06:20,421 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:06:20,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2024-10-15 00:06:21,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:06:21,899 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:06:21,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2024-10-15 00:06:21,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9cbd9fd/9eae2d076342451ba360aa0c6d0cb070/FLAGb75f5f554 [2024-10-15 00:06:22,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf9cbd9fd/9eae2d076342451ba360aa0c6d0cb070 [2024-10-15 00:06:22,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:06:22,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:06:22,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:06:22,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:06:22,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:06:22,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7118bbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22, skipping insertion in model container [2024-10-15 00:06:22,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:06:22,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:06:22,486 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:06:22,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:06:22,519 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:06:22,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22 WrapperNode [2024-10-15 00:06:22,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:06:22,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:06:22,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:06:22,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:06:22,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,555 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 159 [2024-10-15 00:06:22,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:06:22,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:06:22,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:06:22,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:06:22,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,587 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]. [2024-10-15 00:06:22,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:06:22,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:06:22,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:06:22,603 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:06:22,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (1/1) ... [2024-10-15 00:06:22,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 00:06:22,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:06:22,644 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) [2024-10-15 00:06:22,647 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 [2024-10-15 00:06:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 00:06:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-15 00:06:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-15 00:06:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-15 00:06:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-15 00:06:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 00:06:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 00:06:22,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-15 00:06:22,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-15 00:06:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-15 00:06:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:06:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:06:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 00:06:22,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 00:06:22,699 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-15 00:06:22,803 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:06:22,805 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:06:23,147 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-15 00:06:23,147 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:06:23,351 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:06:23,352 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-15 00:06:23,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:23 BoogieIcfgContainer [2024-10-15 00:06:23,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:06:23,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 00:06:23,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 00:06:23,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 00:06:23,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:06:22" (1/3) ... [2024-10-15 00:06:23,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73715a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:06:23, skipping insertion in model container [2024-10-15 00:06:23,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:06:22" (2/3) ... [2024-10-15 00:06:23,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73715a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:06:23, skipping insertion in model container [2024-10-15 00:06:23,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:23" (3/3) ... [2024-10-15 00:06:23,365 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2024-10-15 00:06:23,380 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 00:06:23,380 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-15 00:06:23,380 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-15 00:06:23,426 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-15 00:06:23,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 58 flow [2024-10-15 00:06:23,483 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-10-15 00:06:23,485 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-15 00:06:23,488 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 4. Compared 25 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. [2024-10-15 00:06:23,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 58 flow [2024-10-15 00:06:23,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 6 transitions, 12 flow [2024-10-15 00:06:23,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 00:06:23,512 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;@1b83fa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 00:06:23,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-15 00:06:23,516 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-15 00:06:23,516 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-10-15 00:06:23,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-15 00:06:23,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:06:23,517 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-15 00:06:23,518 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)] === [2024-10-15 00:06:23,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:06:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash 515975, now seen corresponding path program 1 times [2024-10-15 00:06:23,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:06:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237876427] [2024-10-15 00:06:23,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:06:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:06:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:06:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:23,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:06:23,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237876427] [2024-10-15 00:06:23,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237876427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:06:23,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:06:23,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:06:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958733091] [2024-10-15 00:06:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:06:23,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:06:23,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:06:23,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:06:23,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:06:23,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-15 00:06:23,859 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) [2024-10-15 00:06:23,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:06:23,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-15 00:06:23,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:06:23,887 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-10-15 00:06:23,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-15 00:06:23,888 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. [2024-10-15 00:06:23,889 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 4 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2024-10-15 00:06:23,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 8 transitions, 30 flow [2024-10-15 00:06:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:06:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-15 00:06:23,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-10-15 00:06:23,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23863636363636365 [2024-10-15 00:06:23,916 INFO L175 Difference]: Start difference. First operand has 6 places, 6 transitions, 12 flow. Second operand 4 states and 21 transitions. [2024-10-15 00:06:23,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 8 transitions, 30 flow [2024-10-15 00:06:23,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 8 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-15 00:06:23,920 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 34 flow [2024-10-15 00:06:23,921 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} [2024-10-15 00:06:23,929 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 5 predicate places. [2024-10-15 00:06:23,929 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 34 flow [2024-10-15 00:06:23,929 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) [2024-10-15 00:06:23,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:06:23,929 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-15 00:06:23,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 00:06:23,930 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)] === [2024-10-15 00:06:23,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:06:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1807947750, now seen corresponding path program 1 times [2024-10-15 00:06:23,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:06:23,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23768922] [2024-10-15 00:06:23,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:06:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:06:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:06:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:24,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:06:24,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23768922] [2024-10-15 00:06:24,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23768922] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:06:24,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077794579] [2024-10-15 00:06:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:06:24,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:06:24,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:06:24,118 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) [2024-10-15 00:06:24,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-15 00:06:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:06:24,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:06:24,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:06:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:24,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-15 00:06:24,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077794579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:06:24,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-15 00:06:24,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-15 00:06:24,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213315768] [2024-10-15 00:06:24,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:06:24,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:06:24,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:06:24,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:06:24,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-15 00:06:24,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-15 00:06:24,250 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) [2024-10-15 00:06:24,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:06:24,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-15 00:06:24,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:06:24,298 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-10-15 00:06:24,299 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-15 00:06:24,299 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. [2024-10-15 00:06:24,300 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 1 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2024-10-15 00:06:24,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 42 flow [2024-10-15 00:06:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 00:06:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-15 00:06:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-10-15 00:06:24,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1893939393939394 [2024-10-15 00:06:24,302 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 34 flow. Second operand 6 states and 25 transitions. [2024-10-15 00:06:24,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 42 flow [2024-10-15 00:06:24,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-15 00:06:24,306 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 38 flow [2024-10-15 00:06:24,306 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} [2024-10-15 00:06:24,307 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 8 predicate places. [2024-10-15 00:06:24,308 INFO L471 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 38 flow [2024-10-15 00:06:24,308 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) [2024-10-15 00:06:24,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:06:24,309 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-15 00:06:24,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-15 00:06:24,510 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 [2024-10-15 00:06:24,511 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)] === [2024-10-15 00:06:24,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:06:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -211804888, now seen corresponding path program 1 times [2024-10-15 00:06:24,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:06:24,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051314196] [2024-10-15 00:06:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:06:24,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:06:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:06:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:24,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:06:24,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051314196] [2024-10-15 00:06:24,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051314196] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:06:24,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535640261] [2024-10-15 00:06:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:06:24,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:06:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:06:24,585 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) [2024-10-15 00:06:24,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-15 00:06:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:06:24,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-15 00:06:24,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:06:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:24,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:06:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535640261] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:06:24,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:06:24,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-15 00:06:24,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721882916] [2024-10-15 00:06:24,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:06:24,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-15 00:06:24,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:06:24,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-15 00:06:24,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-15 00:06:24,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-15 00:06:24,728 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) [2024-10-15 00:06:24,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:06:24,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-15 00:06:24,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:06:24,790 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2024-10-15 00:06:24,791 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-15 00:06:24,791 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. [2024-10-15 00:06:24,791 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 3 selfloop transitions, 9 changer transitions 0/13 dead transitions. [2024-10-15 00:06:24,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 98 flow [2024-10-15 00:06:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-15 00:06:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-15 00:06:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2024-10-15 00:06:24,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.20454545454545456 [2024-10-15 00:06:24,793 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 38 flow. Second operand 10 states and 45 transitions. [2024-10-15 00:06:24,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 98 flow [2024-10-15 00:06:24,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 72 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-15 00:06:24,794 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 82 flow [2024-10-15 00:06:24,795 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} [2024-10-15 00:06:24,795 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 15 predicate places. [2024-10-15 00:06:24,795 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 82 flow [2024-10-15 00:06:24,795 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) [2024-10-15 00:06:24,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:06:24,796 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-15 00:06:24,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-15 00:06:25,000 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 [2024-10-15 00:06:25,002 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)] === [2024-10-15 00:06:25,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:06:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash -22737637, now seen corresponding path program 2 times [2024-10-15 00:06:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:06:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447665670] [2024-10-15 00:06:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:06:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:06:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:06:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:06:25,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:06:25,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447665670] [2024-10-15 00:06:25,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447665670] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:06:25,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333022863] [2024-10-15 00:06:25,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 00:06:25,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:06:25,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:06:25,210 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) [2024-10-15 00:06:25,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-15 00:06:25,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-15 00:06:25,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:06:25,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-15 00:06:25,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:06:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-15 00:06:25,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:06:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-15 00:06:25,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333022863] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:06:25,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:06:25,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-15 00:06:25,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631456440] [2024-10-15 00:06:25,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:06:25,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-15 00:06:25,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:06:25,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-15 00:06:25,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-15 00:06:25,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-10-15 00:06:25,375 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) [2024-10-15 00:06:25,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:06:25,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-10-15 00:06:25,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:06:25,492 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2024-10-15 00:06:25,492 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-10-15 00:06:25,493 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. [2024-10-15 00:06:25,493 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-10-15 00:06:25,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 110 flow [2024-10-15 00:06:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-15 00:06:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-15 00:06:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 57 transitions. [2024-10-15 00:06:25,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.18506493506493507 [2024-10-15 00:06:25,494 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 82 flow. Second operand 14 states and 57 transitions. [2024-10-15 00:06:25,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 110 flow [2024-10-15 00:06:25,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 14 transitions, 88 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-15 00:06:25,496 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-10-15 00:06:25,496 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} [2024-10-15 00:06:25,496 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 21 predicate places. [2024-10-15 00:06:25,497 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-10-15 00:06:25,497 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) [2024-10-15 00:06:25,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-15 00:06:25,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-15 00:06:25,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-15 00:06:25,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-15 00:06:25,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-15 00:06:25,704 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 [2024-10-15 00:06:25,705 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-15 00:06:25,709 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-15 00:06:25,710 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 00:06:25,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:06:25 BasicIcfg [2024-10-15 00:06:25,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 00:06:25,719 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:06:25,719 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:06:25,720 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:06:25,720 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:06:23" (3/4) ... [2024-10-15 00:06:25,722 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 00:06:25,724 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-15 00:06:25,725 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-15 00:06:25,730 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2024-10-15 00:06:25,734 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-10-15 00:06:25,734 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-15 00:06:25,735 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-15 00:06:25,825 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-15 00:06:25,826 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-15 00:06:25,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:06:25,827 INFO L158 Benchmark]: Toolchain (without parser) took 3527.63ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 80.2MB in the beginning and 85.7MB in the end (delta: -5.5MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,827 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 151.0MB. Free memory is still 101.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:06:25,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.86ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 67.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.70ms. Allocated memory is still 151.0MB. Free memory was 67.3MB in the beginning and 65.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,828 INFO L158 Benchmark]: Boogie Preprocessor took 45.53ms. Allocated memory is still 151.0MB. Free memory was 65.1MB in the beginning and 62.8MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,828 INFO L158 Benchmark]: RCFGBuilder took 749.67ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 62.8MB in the beginning and 158.9MB in the end (delta: -96.2MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,828 INFO L158 Benchmark]: TraceAbstraction took 2360.80ms. Allocated memory is still 226.5MB. Free memory was 157.9MB in the beginning and 90.9MB in the end (delta: 67.0MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,828 INFO L158 Benchmark]: Witness Printer took 106.69ms. Allocated memory is still 226.5MB. Free memory was 90.9MB in the beginning and 85.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-15 00:06:25,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 151.0MB. Free memory is still 101.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.86ms. Allocated memory is still 151.0MB. Free memory was 79.9MB in the beginning and 67.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.70ms. Allocated memory is still 151.0MB. Free memory was 67.3MB in the beginning and 65.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.53ms. Allocated memory is still 151.0MB. Free memory was 65.1MB in the beginning and 62.8MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 749.67ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 62.8MB in the beginning and 158.9MB in the end (delta: -96.2MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2360.80ms. Allocated memory is still 226.5MB. Free memory was 157.9MB in the beginning and 90.9MB in the end (delta: 67.0MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Witness Printer took 106.69ms. Allocated memory is still 226.5MB. Free memory was 90.9MB in the beginning and 85.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: 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: 2.2s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s 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! [2024-10-15 00:06:25,863 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