./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/unroll-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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-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 a4cca88acec68e5dbb90cd5700ef248bb5273dc097847f9475a683bfbdc7b189 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:15:25,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:15:26,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:15:26,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:15:26,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:15:26,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:15:26,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:15:26,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:15:26,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:15:26,029 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:15:26,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:15:26,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:15:26,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:15:26,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:15:26,031 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:15:26,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:15:26,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:15:26,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:15:26,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:15:26,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:15:26,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:15:26,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:15:26,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:15:26,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:15:26,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:15:26,037 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:15:26,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:15:26,037 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:15:26,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:15:26,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:15:26,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:15:26,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:15:26,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:15:26,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:15:26,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:15:26,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:15:26,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:15:26,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:15:26,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:15:26,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:15:26,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:15:26,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:15:26,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:15:26,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:15:26,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4cca88acec68e5dbb90cd5700ef248bb5273dc097847f9475a683bfbdc7b189 [2024-11-09 15:15:26,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:15:26,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:15:26,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:15:26,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:15:26,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:15:26,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-3.wvr.c [2024-11-09 15:15:27,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:15:27,828 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:15:27,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-3.wvr.c [2024-11-09 15:15:27,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71578e066/c34afb843287424f844b048503b16191/FLAG9b2be2242 [2024-11-09 15:15:27,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71578e066/c34afb843287424f844b048503b16191 [2024-11-09 15:15:27,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:15:27,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:15:27,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:15:27,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:15:27,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:15:27,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:15:27" (1/1) ... [2024-11-09 15:15:27,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6dc6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:27, skipping insertion in model container [2024-11-09 15:15:27,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:15:27" (1/1) ... [2024-11-09 15:15:27,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:15:28,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:15:28,058 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:15:28,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:15:28,121 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:15:28,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28 WrapperNode [2024-11-09 15:15:28,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:15:28,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:15:28,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:15:28,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:15:28,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,191 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 141 [2024-11-09 15:15:28,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:15:28,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:15:28,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:15:28,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:15:28,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,231 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 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]. [2024-11-09 15:15:28,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:15:28,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:15:28,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:15:28,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:15:28,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (1/1) ... [2024-11-09 15:15:28,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:15:28,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:28,305 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) [2024-11-09 15:15:28,311 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 [2024-11-09 15:15:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:15:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:15:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:15:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:15:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:15:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:15:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:15:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:15:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:15:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:15:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:15:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:15:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:15:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:15:28,367 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:15:28,484 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:15:28,486 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:15:28,800 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:15:28,800 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:15:28,954 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:15:28,955 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:15:28,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:15:28 BoogieIcfgContainer [2024-11-09 15:15:28,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:15:28,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:15:28,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:15:28,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:15:28,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:15:27" (1/3) ... [2024-11-09 15:15:28,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cbad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:15:28, skipping insertion in model container [2024-11-09 15:15:28,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:15:28" (2/3) ... [2024-11-09 15:15:28,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cbad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:15:28, skipping insertion in model container [2024-11-09 15:15:28,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:15:28" (3/3) ... [2024-11-09 15:15:28,969 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2024-11-09 15:15:28,986 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:15:28,987 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 15:15:28,987 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:15:29,035 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:15:29,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 58 flow [2024-11-09 15:15:29,092 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-09 15:15:29,092 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:15:29,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 3/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 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. [2024-11-09 15:15:29,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 58 flow [2024-11-09 15:15:29,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 6 places, 6 transitions, 12 flow [2024-11-09 15:15:29,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:15:29,115 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;@6ef7b701, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:15:29,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 15:15:29,121 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:15:29,121 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-09 15:15:29,121 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:15:29,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:29,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:15:29,123 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)] === [2024-11-09 15:15:29,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash 455278, now seen corresponding path program 1 times [2024-11-09 15:15:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:29,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521220144] [2024-11-09 15:15:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:29,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:29,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:29,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521220144] [2024-11-09 15:15:29,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521220144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:29,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:15:29,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:15:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125620058] [2024-11-09 15:15:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:29,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:15:29,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:29,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:15:29,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:15:29,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-11-09 15:15:29,426 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) [2024-11-09 15:15:29,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:29,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-11-09 15:15:29,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:29,482 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-11-09 15:15:29,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:15:29,483 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. [2024-11-09 15:15:29,484 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 4 selfloop transitions, 3 changer transitions 0/8 dead transitions. [2024-11-09 15:15:29,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 8 transitions, 30 flow [2024-11-09 15:15:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:15:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:15:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2024-11-09 15:15:29,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23863636363636365 [2024-11-09 15:15:29,496 INFO L175 Difference]: Start difference. First operand has 6 places, 6 transitions, 12 flow. Second operand 4 states and 21 transitions. [2024-11-09 15:15:29,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 8 transitions, 30 flow [2024-11-09 15:15:29,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 8 transitions, 30 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:15:29,500 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 34 flow [2024-11-09 15:15:29,502 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} [2024-11-09 15:15:29,507 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 5 predicate places. [2024-11-09 15:15:29,507 INFO L471 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 34 flow [2024-11-09 15:15:29,507 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) [2024-11-09 15:15:29,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:29,508 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:15:29,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:15:29,509 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)] === [2024-11-09 15:15:29,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:29,510 INFO L85 PathProgramCache]: Analyzing trace with hash 678732600, now seen corresponding path program 1 times [2024-11-09 15:15:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:29,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156213764] [2024-11-09 15:15:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:29,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:29,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:29,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156213764] [2024-11-09 15:15:29,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156213764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:29,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308410032] [2024-11-09 15:15:29,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:29,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:29,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:29,646 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) [2024-11-09 15:15:29,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:15:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:29,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:15:29,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:29,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:15:29,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308410032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:15:29,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:15:29,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:15:29,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031119594] [2024-11-09 15:15:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:15:29,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:15:29,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:15:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:15:29,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-11-09 15:15:29,756 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) [2024-11-09 15:15:29,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:29,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-11-09 15:15:29,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:29,784 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-11-09 15:15:29,784 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:15:29,784 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. [2024-11-09 15:15:29,784 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 1 selfloop transitions, 5 changer transitions 0/7 dead transitions. [2024-11-09 15:15:29,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 42 flow [2024-11-09 15:15:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:15:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:15:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-11-09 15:15:29,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.1893939393939394 [2024-11-09 15:15:29,787 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 34 flow. Second operand 6 states and 25 transitions. [2024-11-09 15:15:29,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 42 flow [2024-11-09 15:15:29,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:15:29,788 INFO L231 Difference]: Finished difference. Result has 14 places, 7 transitions, 38 flow [2024-11-09 15:15:29,788 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} [2024-11-09 15:15:29,789 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 8 predicate places. [2024-11-09 15:15:29,789 INFO L471 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 38 flow [2024-11-09 15:15:29,790 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) [2024-11-09 15:15:29,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:29,790 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:15:29,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:15:29,991 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 [2024-11-09 15:15:29,991 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)] === [2024-11-09 15:15:29,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:29,992 INFO L85 PathProgramCache]: Analyzing trace with hash -434125429, now seen corresponding path program 1 times [2024-11-09 15:15:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:29,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48575945] [2024-11-09 15:15:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:29,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:30,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:30,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:30,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48575945] [2024-11-09 15:15:30,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48575945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:30,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939300344] [2024-11-09 15:15:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:30,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:30,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:30,054 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) [2024-11-09 15:15:30,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:15:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:30,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:15:30,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:30,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:30,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:30,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:30,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939300344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:30,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:30,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 15:15:30,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444047291] [2024-11-09 15:15:30,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:30,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:15:30,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:15:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:15:30,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-11-09 15:15:30,173 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) [2024-11-09 15:15:30,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:30,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-11-09 15:15:30,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:30,220 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2024-11-09 15:15:30,220 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 15:15:30,220 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. [2024-11-09 15:15:30,220 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 3 selfloop transitions, 9 changer transitions 0/13 dead transitions. [2024-11-09 15:15:30,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 98 flow [2024-11-09 15:15:30,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:15:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:15:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2024-11-09 15:15:30,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.20454545454545456 [2024-11-09 15:15:30,222 INFO L175 Difference]: Start difference. First operand has 14 places, 7 transitions, 38 flow. Second operand 10 states and 45 transitions. [2024-11-09 15:15:30,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 98 flow [2024-11-09 15:15:30,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 72 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-09 15:15:30,223 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 82 flow [2024-11-09 15:15:30,223 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} [2024-11-09 15:15:30,224 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 15 predicate places. [2024-11-09 15:15:30,224 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 82 flow [2024-11-09 15:15:30,224 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) [2024-11-09 15:15:30,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:15:30,224 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 15:15:30,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:15:30,425 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 [2024-11-09 15:15:30,426 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)] === [2024-11-09 15:15:30,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:15:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2141948523, now seen corresponding path program 2 times [2024-11-09 15:15:30,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:15:30,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375088905] [2024-11-09 15:15:30,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:15:30,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:15:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:15:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:15:30,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:15:30,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375088905] [2024-11-09 15:15:30,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375088905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:15:30,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913783081] [2024-11-09 15:15:30,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:15:30,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:15:30,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:15:30,559 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) [2024-11-09 15:15:30,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:15:30,607 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:15:30,607 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:15:30,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:15:30,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:15:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:15:30,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:15:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:15:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913783081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:15:30,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:15:30,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-09 15:15:30,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640631033] [2024-11-09 15:15:30,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:15:30,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:15:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:15:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:15:30,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:15:30,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2024-11-09 15:15:30,692 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) [2024-11-09 15:15:30,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:15:30,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2024-11-09 15:15:30,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:15:30,812 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2024-11-09 15:15:30,812 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-09 15:15:30,813 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. [2024-11-09 15:15:30,813 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2024-11-09 15:15:30,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 110 flow [2024-11-09 15:15:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:15:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:15:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 57 transitions. [2024-11-09 15:15:30,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.18506493506493507 [2024-11-09 15:15:30,814 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 82 flow. Second operand 14 states and 57 transitions. [2024-11-09 15:15:30,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 110 flow [2024-11-09 15:15:30,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 14 transitions, 88 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-09 15:15:30,815 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-11-09 15:15:30,815 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} [2024-11-09 15:15:30,816 INFO L277 CegarLoopForPetriNet]: 6 programPoint places, 21 predicate places. [2024-11-09 15:15:30,816 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-11-09 15:15:30,816 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) [2024-11-09 15:15:30,818 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 15:15:30,818 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 15:15:30,819 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 15:15:30,819 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 15:15:30,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:15:31,022 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 [2024-11-09 15:15:31,023 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-09 15:15:31,026 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:15:31,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:15:31,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:15:31 BasicIcfg [2024-11-09 15:15:31,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:15:31,030 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:15:31,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:15:31,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:15:31,031 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:15:28" (3/4) ... [2024-11-09 15:15:31,032 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:15:31,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:15:31,035 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:15:31,041 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-09 15:15:31,041 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-09 15:15:31,042 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 15:15:31,042 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:15:31,106 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:15:31,107 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:15:31,107 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:15:31,107 INFO L158 Benchmark]: Toolchain (without parser) took 3246.89ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 84.8MB in the beginning and 73.6MB in the end (delta: 11.2MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,107 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 159.4MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:15:31,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.75ms. Allocated memory is still 159.4MB. Free memory was 84.6MB in the beginning and 127.6MB in the end (delta: -43.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.76ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 127.6MB in the beginning and 191.6MB in the end (delta: -64.0MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,108 INFO L158 Benchmark]: Boogie Preprocessor took 67.30ms. Allocated memory is still 220.2MB. Free memory was 191.6MB in the beginning and 188.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,108 INFO L158 Benchmark]: RCFGBuilder took 695.51ms. Allocated memory is still 220.2MB. Free memory was 188.5MB in the beginning and 144.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,108 INFO L158 Benchmark]: TraceAbstraction took 2069.00ms. Allocated memory is still 220.2MB. Free memory was 144.5MB in the beginning and 78.8MB in the end (delta: 65.6MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,108 INFO L158 Benchmark]: Witness Printer took 76.66ms. Allocated memory is still 220.2MB. Free memory was 78.8MB in the beginning and 73.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:15:31,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 159.4MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.75ms. Allocated memory is still 159.4MB. Free memory was 84.6MB in the beginning and 127.6MB in the end (delta: -43.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.76ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 127.6MB in the beginning and 191.6MB in the end (delta: -64.0MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.30ms. Allocated memory is still 220.2MB. Free memory was 191.6MB in the beginning and 188.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 695.51ms. Allocated memory is still 220.2MB. Free memory was 188.5MB in the beginning and 144.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2069.00ms. Allocated memory is still 220.2MB. Free memory was 144.5MB in the beginning and 78.8MB in the end (delta: 65.6MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. * Witness Printer took 76.66ms. Allocated memory is still 220.2MB. Free memory was 78.8MB in the beginning and 73.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, 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, 0.6s 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! [2024-11-09 15:15:31,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE