./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/unroll-cond-3.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-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9fb4c28a8a216c266c6ae14d377c8e26c68bb16bf7c2fe2809f039d12d6c4b55 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:58:19,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:58:20,044 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:58:20,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:58:20,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:58:20,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:58:20,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:58:20,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:58:20,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:58:20,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:58:20,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:58:20,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:58:20,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:58:20,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:58:20,075 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:58:20,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:58:20,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:58:20,077 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:58:20,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:58:20,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:58:20,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:58:20,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:58:20,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:58:20,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:58:20,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:58:20,080 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:58:20,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:58:20,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:58:20,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:58:20,081 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:58:20,081 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:58:20,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:58:20,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:58:20,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:58:20,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:58:20,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:58:20,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:58:20,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:58:20,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:58:20,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:58:20,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:58:20,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:58:20,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:58:20,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:58:20,083 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fb4c28a8a216c266c6ae14d377c8e26c68bb16bf7c2fe2809f039d12d6c4b55 [2024-11-17 07:58:20,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:58:20,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:58:20,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:58:20,291 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:58:20,291 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:58:20,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2024-11-17 07:58:21,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:58:21,663 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:58:21,663 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2024-11-17 07:58:21,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7258290b/a9cd81254e83480cab774275d438ca16/FLAG98eb4e20b [2024-11-17 07:58:21,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7258290b/a9cd81254e83480cab774275d438ca16 [2024-11-17 07:58:21,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:58:21,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:58:21,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:58:21,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:58:21,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:58:21,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed365b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21, skipping insertion in model container [2024-11-17 07:58:21,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,703 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:58:21,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:58:21,874 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:58:21,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:58:21,905 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:58:21,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21 WrapperNode [2024-11-17 07:58:21,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:58:21,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:58:21,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:58:21,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:58:21,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,932 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 156 [2024-11-17 07:58:21,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:58:21,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:58:21,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:58:21,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:58:21,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,954 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-17 07:58:21,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,959 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:58:21,967 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:58:21,967 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:58:21,967 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:58:21,968 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (1/1) ... [2024-11-17 07:58:21,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:58:21,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:22,018 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 07:58:22,027 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 07:58:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:58:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:58:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:58:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:58:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:58:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:58:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:58:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:58:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:58:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:58:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:58:22,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:58:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:58:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:58:22,079 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 07:58:22,170 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:58:22,173 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:58:22,413 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:58:22,413 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:58:22,605 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:58:22,605 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:58:22,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:22 BoogieIcfgContainer [2024-11-17 07:58:22,606 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:58:22,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:58:22,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:58:22,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:58:22,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:58:21" (1/3) ... [2024-11-17 07:58:22,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dde94d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:58:22, skipping insertion in model container [2024-11-17 07:58:22,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:21" (2/3) ... [2024-11-17 07:58:22,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dde94d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:58:22, skipping insertion in model container [2024-11-17 07:58:22,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:22" (3/3) ... [2024-11-17 07:58:22,612 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2024-11-17 07:58:22,628 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:58:22,628 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 07:58:22,628 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:58:22,671 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:58:22,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 76 flow [2024-11-17 07:58:22,720 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-11-17 07:58:22,720 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:58:22,724 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 35 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 07:58:22,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 76 flow [2024-11-17 07:58:22,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 7 places, 7 transitions, 14 flow [2024-11-17 07:58:22,733 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:58:22,737 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;@1f529e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:58:22,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 07:58:22,744 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:58:22,744 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-11-17 07:58:22,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:58:22,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:22,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:58:22,745 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 07:58:22,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash 13484592, now seen corresponding path program 1 times [2024-11-17 07:58:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:22,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396279403] [2024-11-17 07:58:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:22,979 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 07:58:22,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:22,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396279403] [2024-11-17 07:58:22,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396279403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:22,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:22,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:58:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547592240] [2024-11-17 07:58:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:22,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:22,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:23,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:23,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-17 07:58:23,025 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 07:58:23,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:23,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-17 07:58:23,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:23,059 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-17 07:58:23,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:58:23,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 11 events. 1/11 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. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-11-17 07:58:23,061 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 4 selfloop transitions, 3 changer transitions 0/9 dead transitions. [2024-11-17 07:58:23,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 9 transitions, 32 flow [2024-11-17 07:58:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-11-17 07:58:23,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3629032258064516 [2024-11-17 07:58:23,071 INFO L175 Difference]: Start difference. First operand has 7 places, 7 transitions, 14 flow. Second operand 4 states and 45 transitions. [2024-11-17 07:58:23,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 9 transitions, 32 flow [2024-11-17 07:58:23,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 9 transitions, 32 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:58:23,075 INFO L231 Difference]: Finished difference. Result has 12 places, 9 transitions, 36 flow [2024-11-17 07:58:23,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=12, PETRI_TRANSITIONS=9} [2024-11-17 07:58:23,081 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 5 predicate places. [2024-11-17 07:58:23,081 INFO L471 AbstractCegarLoop]: Abstraction has has 12 places, 9 transitions, 36 flow [2024-11-17 07:58:23,081 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 07:58:23,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:23,081 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:58:23,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:58:23,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 07:58:23,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2089483463, now seen corresponding path program 1 times [2024-11-17 07:58:23,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:23,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337818537] [2024-11-17 07:58:23,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:23,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:23,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337818537] [2024-11-17 07:58:23,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337818537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:23,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407365524] [2024-11-17 07:58:23,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:23,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:23,244 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 07:58:23,245 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 07:58:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:23,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:58:23,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:23,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:23,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:58:23,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407365524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:23,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:58:23,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:58:23,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973390704] [2024-11-17 07:58:23,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:23,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:58:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:23,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:58:23,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:58:23,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-17 07:58:23,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 36 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 07:58:23,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:23,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-17 07:58:23,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:23,405 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-17 07:58:23,405 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 07:58:23,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 10 events. 1/10 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 11. Up to 4 conditions per place. [2024-11-17 07:58:23,405 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 1 selfloop transitions, 5 changer transitions 0/8 dead transitions. [2024-11-17 07:58:23,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 8 transitions, 44 flow [2024-11-17 07:58:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:58:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:58:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2024-11-17 07:58:23,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3279569892473118 [2024-11-17 07:58:23,407 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 36 flow. Second operand 6 states and 61 transitions. [2024-11-17 07:58:23,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 8 transitions, 44 flow [2024-11-17 07:58:23,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 8 transitions, 42 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:58:23,409 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 40 flow [2024-11-17 07:58:23,409 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=6, PETRI_FLOW=40, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2024-11-17 07:58:23,409 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 8 predicate places. [2024-11-17 07:58:23,409 INFO L471 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 40 flow [2024-11-17 07:58:23,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 07:58:23,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:23,410 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:58:23,426 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 07:58:23,614 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 [2024-11-17 07:58:23,615 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 07:58:23,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash -349477532, now seen corresponding path program 1 times [2024-11-17 07:58:23,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:23,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495339808] [2024-11-17 07:58:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:23,703 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 07:58:23,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:23,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495339808] [2024-11-17 07:58:23,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495339808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:23,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884754103] [2024-11-17 07:58:23,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:23,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:23,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:23,705 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 07:58:23,706 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 07:58:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:23,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:58:23,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:23,782 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 07:58:23,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:58:23,825 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 07:58:23,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884754103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:58:23,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:58:23,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-17 07:58:23,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748293790] [2024-11-17 07:58:23,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:58:23,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:58:23,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:23,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:58:23,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:58:23,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-17 07:58:23,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 8 transitions, 40 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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 07:58:23,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:23,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-17 07:58:23,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:23,902 INFO L124 PetriNetUnfolderBase]: 1/22 cut-off events. [2024-11-17 07:58:23,903 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-17 07:58:23,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 22 events. 1/22 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 8. Up to 7 conditions per place. [2024-11-17 07:58:23,903 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 3 selfloop transitions, 9 changer transitions 0/14 dead transitions. [2024-11-17 07:58:23,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 14 transitions, 100 flow [2024-11-17 07:58:23,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:58:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:58:23,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 105 transitions. [2024-11-17 07:58:23,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3387096774193548 [2024-11-17 07:58:23,907 INFO L175 Difference]: Start difference. First operand has 15 places, 8 transitions, 40 flow. Second operand 10 states and 105 transitions. [2024-11-17 07:58:23,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 14 transitions, 100 flow [2024-11-17 07:58:23,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 85 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 07:58:23,908 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 95 flow [2024-11-17 07:58:23,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=11, 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=95, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2024-11-17 07:58:23,910 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 16 predicate places. [2024-11-17 07:58:23,910 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 95 flow [2024-11-17 07:58:23,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 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 07:58:23,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:23,911 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:58:23,923 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 07:58:24,114 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 [2024-11-17 07:58:24,115 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 07:58:24,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1048424617, now seen corresponding path program 2 times [2024-11-17 07:58:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682633196] [2024-11-17 07:58:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:24,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:24,239 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 07:58:24,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:24,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682633196] [2024-11-17 07:58:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682633196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:24,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670274491] [2024-11-17 07:58:24,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:58:24,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:24,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:24,241 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) [2024-11-17 07:58:24,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:58:24,290 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:58:24,291 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:58:24,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:58:24,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:24,330 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 07:58:24,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:58:24,360 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 07:58:24,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670274491] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:58:24,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:58:24,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:58:24,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525122110] [2024-11-17 07:58:24,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:58:24,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:58:24,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:24,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:58:24,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:58:24,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-17 07:58:24,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 95 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 07:58:24,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:24,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-17 07:58:24,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:24,487 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-11-17 07:58:24,487 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-11-17 07:58:24,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 25 events. 1/25 cut-off events. For 83/83 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 46. Up to 7 conditions per place. [2024-11-17 07:58:24,487 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-11-17 07:58:24,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 15 transitions, 125 flow [2024-11-17 07:58:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 07:58:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 07:58:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 127 transitions. [2024-11-17 07:58:24,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2926267281105991 [2024-11-17 07:58:24,489 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 95 flow. Second operand 14 states and 127 transitions. [2024-11-17 07:58:24,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 15 transitions, 125 flow [2024-11-17 07:58:24,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 15 transitions, 103 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-17 07:58:24,490 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-11-17 07:58:24,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=16, 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=29, PETRI_TRANSITIONS=0} [2024-11-17 07:58:24,490 INFO L277 CegarLoopForPetriNet]: 7 programPoint places, 22 predicate places. [2024-11-17 07:58:24,490 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-11-17 07:58:24,491 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 07:58:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-17 07:58:24,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-17 07:58:24,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-17 07:58:24,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-17 07:58:24,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:58:24,697 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 [2024-11-17 07:58:24,698 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-17 07:58:24,700 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:58:24,701 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:58:24,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:58:24 BasicIcfg [2024-11-17 07:58:24,708 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:58:24,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:58:24,709 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:58:24,709 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:58:24,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:22" (3/4) ... [2024-11-17 07:58:24,711 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:58:24,717 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:58:24,717 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:58:24,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-17 07:58:24,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-11-17 07:58:24,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-17 07:58:24,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 07:58:24,802 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:58:24,802 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:58:24,802 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:58:24,802 INFO L158 Benchmark]: Toolchain (without parser) took 3120.97ms. Allocated memory is still 180.4MB. Free memory was 110.4MB in the beginning and 53.3MB in the end (delta: 57.1MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,803 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 109.1MB. Free memory was 71.9MB in the beginning and 71.8MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:58:24,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.28ms. Allocated memory is still 180.4MB. Free memory was 110.2MB in the beginning and 96.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.72ms. Allocated memory is still 180.4MB. Free memory was 96.5MB in the beginning and 94.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,803 INFO L158 Benchmark]: Boogie Preprocessor took 33.44ms. Allocated memory is still 180.4MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,805 INFO L158 Benchmark]: IcfgBuilder took 638.65ms. Allocated memory is still 180.4MB. Free memory was 92.1MB in the beginning and 104.2MB in the end (delta: -12.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,805 INFO L158 Benchmark]: TraceAbstraction took 2101.25ms. Allocated memory is still 180.4MB. Free memory was 103.3MB in the beginning and 58.7MB in the end (delta: 44.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,805 INFO L158 Benchmark]: Witness Printer took 93.27ms. Allocated memory is still 180.4MB. Free memory was 58.7MB in the beginning and 53.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 07:58:24,806 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 109.1MB. Free memory was 71.9MB in the beginning and 71.8MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.28ms. Allocated memory is still 180.4MB. Free memory was 110.2MB in the beginning and 96.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.72ms. Allocated memory is still 180.4MB. Free memory was 96.5MB in the beginning and 94.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.44ms. Allocated memory is still 180.4MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 638.65ms. Allocated memory is still 180.4MB. Free memory was 92.1MB in the beginning and 104.2MB in the end (delta: -12.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2101.25ms. Allocated memory is still 180.4MB. Free memory was 103.3MB in the beginning and 58.7MB in the end (delta: 44.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Witness Printer took 93.27ms. Allocated memory is still 180.4MB. Free memory was 58.7MB in the beginning and 53.3MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred 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, 80 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 303 SizeOfPredicates, 9 NumberOfNonLiveVariables, 207 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 67/138 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 07:58:24,844 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