./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-lamport.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/parallel-lamport.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 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:23:36,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:23:36,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:23:36,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:23:36,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:23:36,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:23:36,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:23:36,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:23:36,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:23:36,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:23:36,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:23:36,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:23:36,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:23:36,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:23:36,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:23:36,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:23:36,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:23:36,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:23:36,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:23:36,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:23:36,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:23:36,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:23:36,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:23:36,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:23:36,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:23:36,139 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:23:36,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:23:36,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:23:36,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:23:36,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:23:36,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:23:36,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:23:36,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:23:36,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:23:36,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:23:36,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:23:36,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:23:36,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:23:36,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:23:36,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:23:36,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:23:36,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:23:36,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:23:36,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:23:36,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 [2024-11-10 22:23:36,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:23:36,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:23:36,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:23:36,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:23:36,352 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:23:36,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-11-10 22:23:37,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:23:37,759 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:23:37,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-11-10 22:23:37,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652f2dd55/5d725642ac4044b0845207875d198361/FLAGcc3714882 [2024-11-10 22:23:37,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652f2dd55/5d725642ac4044b0845207875d198361 [2024-11-10 22:23:37,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:23:37,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:23:37,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:23:37,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:23:37,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:23:37,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:23:37" (1/1) ... [2024-11-10 22:23:37,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56383962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:37, skipping insertion in model container [2024-11-10 22:23:37,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:23:37" (1/1) ... [2024-11-10 22:23:37,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:23:37,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:23:37,971 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:23:37,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:23:38,001 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:23:38,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38 WrapperNode [2024-11-10 22:23:38,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:23:38,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:23:38,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:23:38,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:23:38,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,031 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 214 [2024-11-10 22:23:38,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:23:38,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:23:38,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:23:38,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:23:38,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,058 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]. [2024-11-10 22:23:38,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,062 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:23:38,067 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:23:38,067 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:23:38,068 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:23:38,068 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (1/1) ... [2024-11-10 22:23:38,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:23:38,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:38,094 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) [2024-11-10 22:23:38,095 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 [2024-11-10 22:23:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:23:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:23:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:23:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:23:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:23:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:23:38,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:23:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:23:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:23:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:23:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:23:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:23:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:23:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:23:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:23:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:23:38,184 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:23:38,286 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:23:38,287 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:23:38,485 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:23:38,485 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:23:38,634 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:23:38,634 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:23:38,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:23:38 BoogieIcfgContainer [2024-11-10 22:23:38,634 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:23:38,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:23:38,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:23:38,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:23:38,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:23:37" (1/3) ... [2024-11-10 22:23:38,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1585b480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:23:38, skipping insertion in model container [2024-11-10 22:23:38,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:23:38" (2/3) ... [2024-11-10 22:23:38,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1585b480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:23:38, skipping insertion in model container [2024-11-10 22:23:38,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:23:38" (3/3) ... [2024-11-10 22:23:38,640 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-11-10 22:23:38,652 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:23:38,652 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 22:23:38,652 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:23:38,695 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:23:38,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 167 flow [2024-11-10 22:23:38,765 INFO L124 PetriNetUnfolderBase]: 2/70 cut-off events. [2024-11-10 22:23:38,765 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:23:38,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 70 events. 2/70 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2024-11-10 22:23:38,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 167 flow [2024-11-10 22:23:38,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 67 transitions, 146 flow [2024-11-10 22:23:38,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:23:38,788 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;@71dc53a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:23:38,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-10 22:23:38,793 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:23:38,794 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-10 22:23:38,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:23:38,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:38,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:38,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:38,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash -737544003, now seen corresponding path program 1 times [2024-11-10 22:23:38,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:38,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269717131] [2024-11-10 22:23:38,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:38,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:39,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:39,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269717131] [2024-11-10 22:23:39,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269717131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:39,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:39,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:39,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214367677] [2024-11-10 22:23:39,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:39,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:39,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:39,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:39,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 73 [2024-11-10 22:23:39,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 67 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-10 22:23:39,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:39,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 73 [2024-11-10 22:23:39,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:39,647 INFO L124 PetriNetUnfolderBase]: 3045/4721 cut-off events. [2024-11-10 22:23:39,647 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2024-11-10 22:23:39,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9555 conditions, 4721 events. 3045/4721 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 24921 event pairs, 3043 based on Foata normal form. 3/4684 useless extension candidates. Maximal degree in co-relation 9104. Up to 4546 conditions per place. [2024-11-10 22:23:39,673 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 50 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-10 22:23:39,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 69 transitions, 258 flow [2024-11-10 22:23:39,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-10 22:23:39,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4452054794520548 [2024-11-10 22:23:39,687 INFO L175 Difference]: Start difference. First operand has 75 places, 67 transitions, 146 flow. Second operand 4 states and 130 transitions. [2024-11-10 22:23:39,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 69 transitions, 258 flow [2024-11-10 22:23:39,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 69 transitions, 252 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:23:39,699 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 167 flow [2024-11-10 22:23:39,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-11-10 22:23:39,706 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2024-11-10 22:23:39,706 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 167 flow [2024-11-10 22:23:39,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-10 22:23:39,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:39,707 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:39,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:23:39,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:39,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:39,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1503368457, now seen corresponding path program 1 times [2024-11-10 22:23:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:39,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534372021] [2024-11-10 22:23:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:39,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:39,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:39,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534372021] [2024-11-10 22:23:39,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534372021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461458538] [2024-11-10 22:23:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:39,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:39,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:39,914 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) [2024-11-10 22:23:39,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:23:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:39,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:23:39,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:40,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:40,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461458538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:40,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:40,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:23:40,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401162009] [2024-11-10 22:23:40,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:40,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:23:40,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:40,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:23:40,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:23:40,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 73 [2024-11-10 22:23:40,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-11-10 22:23:40,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:40,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 73 [2024-11-10 22:23:40,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:40,543 INFO L124 PetriNetUnfolderBase]: 3045/4720 cut-off events. [2024-11-10 22:23:40,543 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-10 22:23:40,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9503 conditions, 4720 events. 3045/4720 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 24871 event pairs, 3043 based on Foata normal form. 1/4681 useless extension candidates. Maximal degree in co-relation 9474. Up to 4541 conditions per place. [2024-11-10 22:23:40,558 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 46 selfloop transitions, 7 changer transitions 0/68 dead transitions. [2024-11-10 22:23:40,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 68 transitions, 269 flow [2024-11-10 22:23:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:23:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:23:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-11-10 22:23:40,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3698630136986301 [2024-11-10 22:23:40,563 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 167 flow. Second operand 6 states and 162 transitions. [2024-11-10 22:23:40,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 68 transitions, 269 flow [2024-11-10 22:23:40,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 68 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:23:40,567 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 174 flow [2024-11-10 22:23:40,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-11-10 22:23:40,568 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 4 predicate places. [2024-11-10 22:23:40,568 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 174 flow [2024-11-10 22:23:40,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-11-10 22:23:40,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:40,569 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:40,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:23:40,769 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 [2024-11-10 22:23:40,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:40,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:40,770 INFO L85 PathProgramCache]: Analyzing trace with hash -640217602, now seen corresponding path program 1 times [2024-11-10 22:23:40,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:40,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766590667] [2024-11-10 22:23:40,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:40,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:40,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:40,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766590667] [2024-11-10 22:23:40,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766590667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:40,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667192232] [2024-11-10 22:23:40,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:40,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:40,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:40,893 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) [2024-11-10 22:23:40,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:23:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:40,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:23:40,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:41,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:23:41,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:41,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667192232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:23:41,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:23:41,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:23:41,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223848025] [2024-11-10 22:23:41,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:23:41,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:23:41,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:23:41,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:23:41,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 73 [2024-11-10 22:23:41,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 174 flow. Second operand has 12 states, 12 states have (on average 19.916666666666668) internal successors, (239), 12 states have internal predecessors, (239), 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) [2024-11-10 22:23:41,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:41,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 73 [2024-11-10 22:23:41,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:41,441 INFO L124 PetriNetUnfolderBase]: 3048/4738 cut-off events. [2024-11-10 22:23:41,441 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-10 22:23:41,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9553 conditions, 4738 events. 3048/4738 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 24986 event pairs, 3043 based on Foata normal form. 3/4702 useless extension candidates. Maximal degree in co-relation 9475. Up to 4548 conditions per place. [2024-11-10 22:23:41,452 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 49 selfloop transitions, 13 changer transitions 0/77 dead transitions. [2024-11-10 22:23:41,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 352 flow [2024-11-10 22:23:41,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:23:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:23:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 245 transitions. [2024-11-10 22:23:41,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3356164383561644 [2024-11-10 22:23:41,454 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 174 flow. Second operand 10 states and 245 transitions. [2024-11-10 22:23:41,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 352 flow [2024-11-10 22:23:41,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 77 transitions, 322 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-10 22:23:41,456 INFO L231 Difference]: Finished difference. Result has 87 places, 77 transitions, 242 flow [2024-11-10 22:23:41,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=242, PETRI_PLACES=87, PETRI_TRANSITIONS=77} [2024-11-10 22:23:41,457 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 12 predicate places. [2024-11-10 22:23:41,457 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 77 transitions, 242 flow [2024-11-10 22:23:41,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.916666666666668) internal successors, (239), 12 states have internal predecessors, (239), 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) [2024-11-10 22:23:41,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:41,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:41,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:41,658 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 [2024-11-10 22:23:41,658 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:41,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:41,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1201289466, now seen corresponding path program 1 times [2024-11-10 22:23:41,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:41,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830193825] [2024-11-10 22:23:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:41,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830193825] [2024-11-10 22:23:41,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830193825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:41,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:41,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:23:41,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188042686] [2024-11-10 22:23:41,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:41,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:23:41,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:41,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:23:41,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:23:41,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 73 [2024-11-10 22:23:41,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 77 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-10 22:23:41,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:41,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 73 [2024-11-10 22:23:41,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:42,283 INFO L124 PetriNetUnfolderBase]: 3476/5452 cut-off events. [2024-11-10 22:23:42,283 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-10 22:23:42,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10957 conditions, 5452 events. 3476/5452 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 30245 event pairs, 1353 based on Foata normal form. 115/5544 useless extension candidates. Maximal degree in co-relation 10919. Up to 3303 conditions per place. [2024-11-10 22:23:42,305 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 69 selfloop transitions, 3 changer transitions 9/95 dead transitions. [2024-11-10 22:23:42,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 95 transitions, 443 flow [2024-11-10 22:23:42,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:23:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:23:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-10 22:23:42,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5707762557077626 [2024-11-10 22:23:42,307 INFO L175 Difference]: Start difference. First operand has 87 places, 77 transitions, 242 flow. Second operand 3 states and 125 transitions. [2024-11-10 22:23:42,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 95 transitions, 443 flow [2024-11-10 22:23:42,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 95 transitions, 432 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:42,310 INFO L231 Difference]: Finished difference. Result has 88 places, 77 transitions, 244 flow [2024-11-10 22:23:42,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=88, PETRI_TRANSITIONS=77} [2024-11-10 22:23:42,312 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2024-11-10 22:23:42,313 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 77 transitions, 244 flow [2024-11-10 22:23:42,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-10 22:23:42,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:42,313 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:42,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:23:42,314 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:42,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:42,314 INFO L85 PathProgramCache]: Analyzing trace with hash 907294156, now seen corresponding path program 1 times [2024-11-10 22:23:42,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:42,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462428652] [2024-11-10 22:23:42,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:42,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:42,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:42,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462428652] [2024-11-10 22:23:42,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462428652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:42,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:42,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:23:42,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161618174] [2024-11-10 22:23:42,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:42,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:23:42,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:42,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:23:42,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:23:42,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 73 [2024-11-10 22:23:42,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 77 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-10 22:23:42,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:42,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 73 [2024-11-10 22:23:42,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:42,861 INFO L124 PetriNetUnfolderBase]: 3558/5570 cut-off events. [2024-11-10 22:23:42,862 INFO L125 PetriNetUnfolderBase]: For 599/599 co-relation queries the response was YES. [2024-11-10 22:23:42,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11699 conditions, 5570 events. 3558/5570 cut-off events. For 599/599 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 31211 event pairs, 1489 based on Foata normal form. 121/5652 useless extension candidates. Maximal degree in co-relation 11660. Up to 3225 conditions per place. [2024-11-10 22:23:42,874 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 71 selfloop transitions, 3 changer transitions 8/96 dead transitions. [2024-11-10 22:23:42,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 96 transitions, 456 flow [2024-11-10 22:23:42,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:23:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:23:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2024-11-10 22:23:42,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2024-11-10 22:23:42,876 INFO L175 Difference]: Start difference. First operand has 88 places, 77 transitions, 244 flow. Second operand 3 states and 126 transitions. [2024-11-10 22:23:42,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 96 transitions, 456 flow [2024-11-10 22:23:42,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 96 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:42,879 INFO L231 Difference]: Finished difference. Result has 89 places, 77 transitions, 251 flow [2024-11-10 22:23:42,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=89, PETRI_TRANSITIONS=77} [2024-11-10 22:23:42,879 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 14 predicate places. [2024-11-10 22:23:42,879 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 251 flow [2024-11-10 22:23:42,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-10 22:23:42,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:42,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:42,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:23:42,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:42,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash -506839097, now seen corresponding path program 1 times [2024-11-10 22:23:42,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:42,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759963112] [2024-11-10 22:23:42,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:42,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:42,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:42,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:42,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759963112] [2024-11-10 22:23:42,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759963112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:42,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:42,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:42,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137061218] [2024-11-10 22:23:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:42,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:42,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:42,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:42,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:42,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 73 [2024-11-10 22:23:42,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:42,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:42,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 73 [2024-11-10 22:23:42,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:43,438 INFO L124 PetriNetUnfolderBase]: 5391/8406 cut-off events. [2024-11-10 22:23:43,438 INFO L125 PetriNetUnfolderBase]: For 1077/1077 co-relation queries the response was YES. [2024-11-10 22:23:43,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17829 conditions, 8406 events. 5391/8406 cut-off events. For 1077/1077 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 49315 event pairs, 1848 based on Foata normal form. 84/8479 useless extension candidates. Maximal degree in co-relation 17789. Up to 3247 conditions per place. [2024-11-10 22:23:43,456 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 79 selfloop transitions, 5 changer transitions 41/137 dead transitions. [2024-11-10 22:23:43,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 137 transitions, 643 flow [2024-11-10 22:23:43,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:23:43,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:23:43,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 194 transitions. [2024-11-10 22:23:43,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5315068493150685 [2024-11-10 22:23:43,457 INFO L175 Difference]: Start difference. First operand has 89 places, 77 transitions, 251 flow. Second operand 5 states and 194 transitions. [2024-11-10 22:23:43,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 137 transitions, 643 flow [2024-11-10 22:23:43,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 629 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:43,461 INFO L231 Difference]: Finished difference. Result has 91 places, 76 transitions, 253 flow [2024-11-10 22:23:43,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2024-11-10 22:23:43,463 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 16 predicate places. [2024-11-10 22:23:43,463 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 253 flow [2024-11-10 22:23:43,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:43,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:43,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:43,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:23:43,464 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:43,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:43,465 INFO L85 PathProgramCache]: Analyzing trace with hash 881023465, now seen corresponding path program 1 times [2024-11-10 22:23:43,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:43,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780525328] [2024-11-10 22:23:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:43,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:43,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:43,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780525328] [2024-11-10 22:23:43,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780525328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:43,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:43,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:43,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885524791] [2024-11-10 22:23:43,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:43,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:43,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:43,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:43,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:43,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 73 [2024-11-10 22:23:43,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:43,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:43,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 73 [2024-11-10 22:23:43,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:43,748 INFO L124 PetriNetUnfolderBase]: 2161/3555 cut-off events. [2024-11-10 22:23:43,748 INFO L125 PetriNetUnfolderBase]: For 592/592 co-relation queries the response was YES. [2024-11-10 22:23:43,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7807 conditions, 3555 events. 2161/3555 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 18926 event pairs, 662 based on Foata normal form. 84/3628 useless extension candidates. Maximal degree in co-relation 7766. Up to 1300 conditions per place. [2024-11-10 22:23:43,760 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 78 selfloop transitions, 5 changer transitions 3/98 dead transitions. [2024-11-10 22:23:43,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 98 transitions, 474 flow [2024-11-10 22:23:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-11-10 22:23:43,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.476027397260274 [2024-11-10 22:23:43,762 INFO L175 Difference]: Start difference. First operand has 91 places, 76 transitions, 253 flow. Second operand 4 states and 139 transitions. [2024-11-10 22:23:43,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 98 transitions, 474 flow [2024-11-10 22:23:43,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 98 transitions, 467 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-10 22:23:43,765 INFO L231 Difference]: Finished difference. Result has 89 places, 75 transitions, 252 flow [2024-11-10 22:23:43,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2024-11-10 22:23:43,766 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 14 predicate places. [2024-11-10 22:23:43,766 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 252 flow [2024-11-10 22:23:43,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:43,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:43,766 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:43,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:23:43,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:43,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:43,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1403419034, now seen corresponding path program 2 times [2024-11-10 22:23:43,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:43,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666571927] [2024-11-10 22:23:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:43,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:43,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:43,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666571927] [2024-11-10 22:23:43,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666571927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:43,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470404434] [2024-11-10 22:23:43,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:23:43,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:43,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:43,913 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) [2024-11-10 22:23:43,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:23:43,971 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:23:43,972 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:23:43,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 22:23:43,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:44,041 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:23:44,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:23:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:23:44,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470404434] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:23:44,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:23:44,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2024-11-10 22:23:44,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359403862] [2024-11-10 22:23:44,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:23:44,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 22:23:44,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 22:23:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-10 22:23:44,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 73 [2024-11-10 22:23:44,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 75 transitions, 252 flow. Second operand has 16 states, 16 states have (on average 18.75) internal successors, (300), 16 states have internal predecessors, (300), 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) [2024-11-10 22:23:44,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:44,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 73 [2024-11-10 22:23:44,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:44,569 INFO L124 PetriNetUnfolderBase]: 1806/2986 cut-off events. [2024-11-10 22:23:44,569 INFO L125 PetriNetUnfolderBase]: For 578/578 co-relation queries the response was YES. [2024-11-10 22:23:44,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6607 conditions, 2986 events. 1806/2986 cut-off events. For 578/578 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 15079 event pairs, 1800 based on Foata normal form. 2/2949 useless extension candidates. Maximal degree in co-relation 6555. Up to 2857 conditions per place. [2024-11-10 22:23:44,577 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 49 selfloop transitions, 21 changer transitions 0/82 dead transitions. [2024-11-10 22:23:44,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 82 transitions, 411 flow [2024-11-10 22:23:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 22:23:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 22:23:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 344 transitions. [2024-11-10 22:23:44,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2945205479452055 [2024-11-10 22:23:44,579 INFO L175 Difference]: Start difference. First operand has 89 places, 75 transitions, 252 flow. Second operand 16 states and 344 transitions. [2024-11-10 22:23:44,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 82 transitions, 411 flow [2024-11-10 22:23:44,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 82 transitions, 389 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-10 22:23:44,582 INFO L231 Difference]: Finished difference. Result has 96 places, 77 transitions, 281 flow [2024-11-10 22:23:44,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=281, PETRI_PLACES=96, PETRI_TRANSITIONS=77} [2024-11-10 22:23:44,582 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 21 predicate places. [2024-11-10 22:23:44,583 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 77 transitions, 281 flow [2024-11-10 22:23:44,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 18.75) internal successors, (300), 16 states have internal predecessors, (300), 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) [2024-11-10 22:23:44,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:44,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:44,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:44,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:44,788 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:44,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:44,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2060278444, now seen corresponding path program 1 times [2024-11-10 22:23:44,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:44,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501724832] [2024-11-10 22:23:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:44,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:44,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:44,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501724832] [2024-11-10 22:23:44,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501724832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:44,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:44,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:44,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396238107] [2024-11-10 22:23:44,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:44,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:44,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:44,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 73 [2024-11-10 22:23:44,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 77 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:44,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:44,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 73 [2024-11-10 22:23:44,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:45,023 INFO L124 PetriNetUnfolderBase]: 1943/3203 cut-off events. [2024-11-10 22:23:45,024 INFO L125 PetriNetUnfolderBase]: For 415/415 co-relation queries the response was YES. [2024-11-10 22:23:45,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6823 conditions, 3203 events. 1943/3203 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16580 event pairs, 1163 based on Foata normal form. 83/3273 useless extension candidates. Maximal degree in co-relation 6689. Up to 1759 conditions per place. [2024-11-10 22:23:45,033 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 62 selfloop transitions, 3 changer transitions 12/87 dead transitions. [2024-11-10 22:23:45,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 87 transitions, 454 flow [2024-11-10 22:23:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-11-10 22:23:45,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4315068493150685 [2024-11-10 22:23:45,034 INFO L175 Difference]: Start difference. First operand has 96 places, 77 transitions, 281 flow. Second operand 4 states and 126 transitions. [2024-11-10 22:23:45,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 87 transitions, 454 flow [2024-11-10 22:23:45,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 87 transitions, 376 flow, removed 6 selfloop flow, removed 15 redundant places. [2024-11-10 22:23:45,036 INFO L231 Difference]: Finished difference. Result has 83 places, 66 transitions, 182 flow [2024-11-10 22:23:45,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=83, PETRI_TRANSITIONS=66} [2024-11-10 22:23:45,037 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 8 predicate places. [2024-11-10 22:23:45,037 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 66 transitions, 182 flow [2024-11-10 22:23:45,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:45,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:45,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:45,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:23:45,038 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:23:45,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:45,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1638076959, now seen corresponding path program 1 times [2024-11-10 22:23:45,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:45,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353555996] [2024-11-10 22:23:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:45,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:23:45,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:45,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353555996] [2024-11-10 22:23:45,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353555996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:45,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:45,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:45,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287453033] [2024-11-10 22:23:45,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:45,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:45,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:45,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:45,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:45,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 73 [2024-11-10 22:23:45,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 66 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:45,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:45,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 73 [2024-11-10 22:23:45,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:45,144 INFO L124 PetriNetUnfolderBase]: 481/848 cut-off events. [2024-11-10 22:23:45,145 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES. [2024-11-10 22:23:45,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1817 conditions, 848 events. 481/848 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3633 event pairs, 475 based on Foata normal form. 84/927 useless extension candidates. Maximal degree in co-relation 986. Up to 793 conditions per place. [2024-11-10 22:23:45,146 INFO L140 encePairwiseOnDemand]: 71/73 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2024-11-10 22:23:45,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 65 transitions, 288 flow [2024-11-10 22:23:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:23:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:23:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-10 22:23:45,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4063926940639269 [2024-11-10 22:23:45,147 INFO L175 Difference]: Start difference. First operand has 83 places, 66 transitions, 182 flow. Second operand 3 states and 89 transitions. [2024-11-10 22:23:45,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 65 transitions, 288 flow [2024-11-10 22:23:45,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 276 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:23:45,148 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-11-10 22:23:45,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-11-10 22:23:45,149 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2024-11-10 22:23:45,149 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-11-10 22:23:45,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-11-10 22:23:45,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-10 22:23:45,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-10 22:23:45,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-10 22:23:45,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-10 22:23:45,153 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-10 22:23:45,153 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-10 22:23:45,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:23:45,153 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:45,157 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:23:45,157 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:23:45,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:23:45 BasicIcfg [2024-11-10 22:23:45,160 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:23:45,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:23:45,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:23:45,161 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:23:45,161 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:23:38" (3/4) ... [2024-11-10 22:23:45,162 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:23:45,164 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:23:45,164 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:23:45,164 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-10 22:23:45,167 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-10 22:23:45,167 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 22:23:45,167 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 22:23:45,167 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 22:23:45,220 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:23:45,221 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:23:45,221 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:23:45,221 INFO L158 Benchmark]: Toolchain (without parser) took 7441.62ms. Allocated memory was 197.1MB in the beginning and 625.0MB in the end (delta: 427.8MB). Free memory was 128.3MB in the beginning and 258.5MB in the end (delta: -130.3MB). Peak memory consumption was 298.0MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,222 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:23:45,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.25ms. Allocated memory is still 197.1MB. Free memory was 128.0MB in the beginning and 114.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.65ms. Allocated memory is still 197.1MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,222 INFO L158 Benchmark]: Boogie Preprocessor took 35.22ms. Allocated memory is still 197.1MB. Free memory was 112.0MB in the beginning and 109.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,222 INFO L158 Benchmark]: IcfgBuilder took 567.12ms. Allocated memory is still 197.1MB. Free memory was 109.4MB in the beginning and 123.1MB in the end (delta: -13.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,223 INFO L158 Benchmark]: TraceAbstraction took 6524.43ms. Allocated memory was 197.1MB in the beginning and 625.0MB in the end (delta: 427.8MB). Free memory was 122.0MB in the beginning and 262.7MB in the end (delta: -140.7MB). Peak memory consumption was 288.1MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,223 INFO L158 Benchmark]: Witness Printer took 60.47ms. Allocated memory is still 625.0MB. Free memory was 262.7MB in the beginning and 258.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:23:45,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 197.1MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.25ms. Allocated memory is still 197.1MB. Free memory was 128.0MB in the beginning and 114.3MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.65ms. Allocated memory is still 197.1MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.22ms. Allocated memory is still 197.1MB. Free memory was 112.0MB in the beginning and 109.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 567.12ms. Allocated memory is still 197.1MB. Free memory was 109.4MB in the beginning and 123.1MB in the end (delta: -13.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6524.43ms. Allocated memory was 197.1MB in the beginning and 625.0MB in the end (delta: 427.8MB). Free memory was 122.0MB in the beginning and 262.7MB in the end (delta: -140.7MB). Peak memory consumption was 288.1MB. Max. memory is 16.1GB. * Witness Printer took 60.47ms. Allocated memory is still 625.0MB. Free memory was 262.7MB in the beginning and 258.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: 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 7 procedures, 113 locations, 13 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: 6.4s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 623 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1728 IncrementalHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 35 mSDtfsCounter, 1728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 110 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=8, InterpolantAutomatonStates: 58, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 320 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 695 SizeOfPredicates, 10 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:23:45,247 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