./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/weaver/unroll-cond-5.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 052a68c73a5d1c6e7122fc0c660c02483f37277d0239d876d93b351fcdd64a16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:58:21,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:58:22,050 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:58:22,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:58:22,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:58:22,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:58:22,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:58:22,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:58:22,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:58:22,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:58:22,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:58:22,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:58:22,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:58:22,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:58:22,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:58:22,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:58:22,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:58:22,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:58:22,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:58:22,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:58:22,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:58:22,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:58:22,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:58:22,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:58:22,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:58:22,101 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:58:22,101 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:58:22,101 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:58:22,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:58:22,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:58:22,102 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:58:22,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:58:22,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:58:22,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:58:22,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:58:22,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:58:22,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:58:22,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:58:22,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:58:22,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:58:22,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:58:22,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:58:22,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:58:22,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:58:22,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 052a68c73a5d1c6e7122fc0c660c02483f37277d0239d876d93b351fcdd64a16 [2024-11-17 07:58:22,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:58:22,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:58:22,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:58:22,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:58:22,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:58:22,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2024-11-17 07:58:23,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:58:24,005 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:58:24,006 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2024-11-17 07:58:24,017 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae11f85d/0e7f4d6cdaf5430bb7a11be8798233b5/FLAG4759484d4 [2024-11-17 07:58:24,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae11f85d/0e7f4d6cdaf5430bb7a11be8798233b5 [2024-11-17 07:58:24,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:58:24,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:58:24,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:58:24,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:58:24,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:58:24,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155fe220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24, skipping insertion in model container [2024-11-17 07:58:24,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:58:24,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:58:24,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:58:24,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:58:24,420 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:58:24,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24 WrapperNode [2024-11-17 07:58:24,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:58:24,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:58:24,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:58:24,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:58:24,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,485 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 198 [2024-11-17 07:58:24,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:58:24,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:58:24,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:58:24,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:58:24,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,524 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 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]. [2024-11-17 07:58:24,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,539 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:58:24,550 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:58:24,550 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:58:24,551 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:58:24,552 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (1/1) ... [2024-11-17 07:58:24,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:58:24,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:24,585 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) [2024-11-17 07:58:24,588 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 [2024-11-17 07:58:24,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:58:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:58:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:58:24,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:58:24,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:58:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:58:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:58:24,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:58:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:58:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:58:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:58:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:58:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:58:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:58:24,644 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:58:24,770 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:58:24,773 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:58:25,214 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:58:25,217 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:58:25,509 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:58:25,510 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:58:25,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:25 BoogieIcfgContainer [2024-11-17 07:58:25,511 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:58:25,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:58:25,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:58:25,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:58:25,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:58:24" (1/3) ... [2024-11-17 07:58:25,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1676247a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:58:25, skipping insertion in model container [2024-11-17 07:58:25,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:24" (2/3) ... [2024-11-17 07:58:25,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1676247a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:58:25, skipping insertion in model container [2024-11-17 07:58:25,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:25" (3/3) ... [2024-11-17 07:58:25,522 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.c [2024-11-17 07:58:25,539 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:58:25,540 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 07:58:25,540 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:58:25,601 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:58:25,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 76 flow [2024-11-17 07:58:25,666 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-11-17 07:58:25,666 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:58:25,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 29 events. 6/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 20. Up to 2 conditions per place. [2024-11-17 07:58:25,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 76 flow [2024-11-17 07:58:25,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 7 places, 7 transitions, 14 flow [2024-11-17 07:58:25,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:58:25,689 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;@28d7a4d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:58:25,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 07:58:25,693 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:58:25,693 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-11-17 07:58:25,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:58:25,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:25,694 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:58:25,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 07:58:25,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash 17183512, now seen corresponding path program 1 times [2024-11-17 07:58:25,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:25,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803423683] [2024-11-17 07:58:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:25,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:25,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:25,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803423683] [2024-11-17 07:58:25,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803423683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:25,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:25,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:58:25,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740313954] [2024-11-17 07:58:25,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:25,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:25,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:26,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:26,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-17 07:58:26,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 7 places, 7 transitions, 14 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-17 07:58:26,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:26,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-17 07:58:26,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:26,072 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-11-17 07:58:26,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:58:26,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 6 events. 1/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/6 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-17 07:58:26,074 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 1 selfloop transitions, 3 changer transitions 0/6 dead transitions. [2024-11-17 07:58:26,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 6 transitions, 20 flow [2024-11-17 07:58:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:26,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-11-17 07:58:26,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33064516129032256 [2024-11-17 07:58:26,088 INFO L175 Difference]: Start difference. First operand has 7 places, 7 transitions, 14 flow. Second operand 4 states and 41 transitions. [2024-11-17 07:58:26,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 6 transitions, 20 flow [2024-11-17 07:58:26,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 6 transitions, 20 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:58:26,092 INFO L231 Difference]: Finished difference. Result has 9 places, 6 transitions, 18 flow [2024-11-17 07:58:26,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=18, PETRI_PLACES=9, PETRI_TRANSITIONS=6} [2024-11-17 07:58:26,098 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 2 predicate places. [2024-11-17 07:58:26,099 INFO L471 AbstractCegarLoop]: Abstraction has has 9 places, 6 transitions, 18 flow [2024-11-17 07:58:26,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-17 07:58:26,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:26,099 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:58:26,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:58:26,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 07:58:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash 532689364, now seen corresponding path program 1 times [2024-11-17 07:58:26,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:26,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996314550] [2024-11-17 07:58:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:26,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:26,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:26,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996314550] [2024-11-17 07:58:26,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996314550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:26,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:26,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:58:26,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710682658] [2024-11-17 07:58:26,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:26,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:26,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-17 07:58:26,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 6 transitions, 18 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-17 07:58:26,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:26,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-17 07:58:26,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:26,286 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-17 07:58:26,286 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 07:58:26,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 10 events. 1/10 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-11-17 07:58:26,286 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 3 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2024-11-17 07:58:26,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 8 transitions, 38 flow [2024-11-17 07:58:26,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:26,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2024-11-17 07:58:26,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3467741935483871 [2024-11-17 07:58:26,291 INFO L175 Difference]: Start difference. First operand has 9 places, 6 transitions, 18 flow. Second operand 4 states and 43 transitions. [2024-11-17 07:58:26,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 8 transitions, 38 flow [2024-11-17 07:58:26,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 8 transitions, 28 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:58:26,293 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 32 flow [2024-11-17 07:58:26,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, 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=32, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2024-11-17 07:58:26,295 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 4 predicate places. [2024-11-17 07:58:26,295 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 32 flow [2024-11-17 07:58:26,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-17 07:58:26,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:26,296 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:58:26,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:58:26,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 07:58:26,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:26,299 INFO L85 PathProgramCache]: Analyzing trace with hash -17555846, now seen corresponding path program 1 times [2024-11-17 07:58:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:26,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149456972] [2024-11-17 07:58:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:26,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:26,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:26,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149456972] [2024-11-17 07:58:26,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149456972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:26,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206209820] [2024-11-17 07:58:26,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:26,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:26,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:26,444 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) [2024-11-17 07:58:26,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:58:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:26,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:58:26,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:26,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:58:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:26,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206209820] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:58:26,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:58:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-17 07:58:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597225943] [2024-11-17 07:58:26,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:58:26,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:58:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:26,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:58:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:58:26,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-17 07:58:26,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 32 flow. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2024-11-17 07:58:26,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:26,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-17 07:58:26,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:26,738 INFO L124 PetriNetUnfolderBase]: 1/22 cut-off events. [2024-11-17 07:58:26,740 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-17 07:58:26,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 22 events. 1/22 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 35. Up to 7 conditions per place. [2024-11-17 07:58:26,741 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 3 selfloop transitions, 9 changer transitions 0/14 dead transitions. [2024-11-17 07:58:26,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 80 flow [2024-11-17 07:58:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:58:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:58:26,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 105 transitions. [2024-11-17 07:58:26,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3387096774193548 [2024-11-17 07:58:26,746 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 32 flow. Second operand 10 states and 105 transitions. [2024-11-17 07:58:26,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 80 flow [2024-11-17 07:58:26,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 14 transitions, 78 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:58:26,748 INFO L231 Difference]: Finished difference. Result has 22 places, 14 transitions, 88 flow [2024-11-17 07:58:26,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=88, PETRI_PLACES=22, PETRI_TRANSITIONS=14} [2024-11-17 07:58:26,749 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 15 predicate places. [2024-11-17 07:58:26,749 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 14 transitions, 88 flow [2024-11-17 07:58:26,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2024-11-17 07:58:26,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:26,750 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:58:26,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:58:26,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:26,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 07:58:26,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1745179244, now seen corresponding path program 2 times [2024-11-17 07:58:26,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:26,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341138448] [2024-11-17 07:58:26,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:26,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:27,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341138448] [2024-11-17 07:58:27,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341138448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484593639] [2024-11-17 07:58:27,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:58:27,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:27,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:27,220 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) [2024-11-17 07:58:27,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:58:27,287 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:58:27,287 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:58:27,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:58:27,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:58:27,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:58:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:58:27,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484593639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:58:27,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:58:27,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:58:27,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008051450] [2024-11-17 07:58:27,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:58:27,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:58:27,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:27,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:58:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:58:27,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-17 07:58:27,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 14 transitions, 88 flow. Second operand has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 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) [2024-11-17 07:58:27,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:27,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-17 07:58:27,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:27,562 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-11-17 07:58:27,563 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-17 07:58:27,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 25 events. 1/25 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 42. Up to 7 conditions per place. [2024-11-17 07:58:27,563 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-11-17 07:58:27,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 15 transitions, 116 flow [2024-11-17 07:58:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 07:58:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 07:58:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 127 transitions. [2024-11-17 07:58:27,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2926267281105991 [2024-11-17 07:58:27,565 INFO L175 Difference]: Start difference. First operand has 22 places, 14 transitions, 88 flow. Second operand 14 states and 127 transitions. [2024-11-17 07:58:27,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 15 transitions, 116 flow [2024-11-17 07:58:27,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 15 transitions, 82 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-17 07:58:27,567 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-11-17 07:58:27,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2024-11-17 07:58:27,568 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 20 predicate places. [2024-11-17 07:58:27,568 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-11-17 07:58:27,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 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) [2024-11-17 07:58:27,571 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-17 07:58:27,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-17 07:58:27,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-17 07:58:27,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-17 07:58:27,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:58:27,775 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,SelfDestructingSolverStorable3 [2024-11-17 07:58:27,775 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-17 07:58:27,778 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:58:27,778 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:58:27,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:58:27 BasicIcfg [2024-11-17 07:58:27,784 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:58:27,784 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:58:27,784 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:58:27,784 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:58:27,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:25" (3/4) ... [2024-11-17 07:58:27,787 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:58:27,790 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:58:27,790 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:58:27,795 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2024-11-17 07:58:27,795 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-17 07:58:27,796 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-17 07:58:27,796 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 07:58:27,894 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:58:27,895 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:58:27,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:58:27,896 INFO L158 Benchmark]: Toolchain (without parser) took 3857.63ms. Allocated memory was 192.9MB in the beginning and 249.6MB in the end (delta: 56.6MB). Free memory was 120.0MB in the beginning and 119.5MB in the end (delta: 446.0kB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,896 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 192.9MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:58:27,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.75ms. Allocated memory is still 192.9MB. Free memory was 119.8MB in the beginning and 161.3MB in the end (delta: -41.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.00ms. Allocated memory is still 192.9MB. Free memory was 161.3MB in the beginning and 158.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,896 INFO L158 Benchmark]: Boogie Preprocessor took 62.25ms. Allocated memory is still 192.9MB. Free memory was 158.2MB in the beginning and 156.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,897 INFO L158 Benchmark]: IcfgBuilder took 961.22ms. Allocated memory is still 192.9MB. Free memory was 156.1MB in the beginning and 91.1MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,897 INFO L158 Benchmark]: TraceAbstraction took 2270.70ms. Allocated memory was 192.9MB in the beginning and 249.6MB in the end (delta: 56.6MB). Free memory was 90.1MB in the beginning and 124.8MB in the end (delta: -34.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,897 INFO L158 Benchmark]: Witness Printer took 110.84ms. Allocated memory is still 249.6MB. Free memory was 124.8MB in the beginning and 119.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 07:58:27,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 192.9MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.75ms. Allocated memory is still 192.9MB. Free memory was 119.8MB in the beginning and 161.3MB in the end (delta: -41.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.00ms. Allocated memory is still 192.9MB. Free memory was 161.3MB in the beginning and 158.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.25ms. Allocated memory is still 192.9MB. Free memory was 158.2MB in the beginning and 156.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 961.22ms. Allocated memory is still 192.9MB. Free memory was 156.1MB in the beginning and 91.1MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2270.70ms. Allocated memory was 192.9MB in the beginning and 249.6MB in the end (delta: 56.6MB). Free memory was 90.1MB in the beginning and 124.8MB in the end (delta: -34.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 110.84ms. Allocated memory is still 249.6MB. Free memory was 124.8MB in the beginning and 119.5MB 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: 125]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 125]: 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, 38 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 3 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=3, InterpolantAutomatonStates: 32, 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, 0.8s InterpolantComputationTime, 69 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 7 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 64/132 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! [2024-11-17 07:58:27,928 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