./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/chl-array-int-subst.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 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:37:14,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:37:15,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:37:15,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:37:15,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:37:15,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:37:15,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:37:15,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:37:15,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:37:15,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:37:15,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:37:15,049 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:37:15,050 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:37:15,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:37:15,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:37:15,051 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 [2025-03-09 06:37:15,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:37:15,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:37:15,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:37:15,303 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:37:15,303 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:37:15,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2025-03-09 06:37:16,490 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c44082c1b/8372c2cfaba04b2aa541f7a87e0c92d4/FLAG4861c2b8a [2025-03-09 06:37:16,686 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:37:16,688 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2025-03-09 06:37:16,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c44082c1b/8372c2cfaba04b2aa541f7a87e0c92d4/FLAG4861c2b8a [2025-03-09 06:37:16,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c44082c1b/8372c2cfaba04b2aa541f7a87e0c92d4 [2025-03-09 06:37:16,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:37:16,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:37:16,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:37:16,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:37:16,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:37:16,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4414e23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16, skipping insertion in model container [2025-03-09 06:37:16,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:37:16,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:37:16,889 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:37:16,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:37:16,932 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:37:16,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16 WrapperNode [2025-03-09 06:37:16,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:37:16,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:37:16,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:37:16,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:37:16,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,962 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 318 [2025-03-09 06:37:16,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:37:16,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:37:16,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:37:16,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:37:16,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,989 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-03-09 06:37:16,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:16,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:17,001 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:17,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:17,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:17,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:17,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:37:17,010 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:37:17,010 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:37:17,010 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:37:17,011 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (1/1) ... [2025-03-09 06:37:17,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:37:17,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:17,034 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) [2025-03-09 06:37:17,039 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 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:37:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:37:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-09 06:37:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:37:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:37:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:37:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:37:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:37:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:37:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:37:17,055 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:37:17,147 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:37:17,149 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:37:17,615 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:37:17,615 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:37:17,831 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:37:17,832 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:37:17,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:37:17 BoogieIcfgContainer [2025-03-09 06:37:17,832 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:37:17,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:37:17,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:37:17,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:37:17,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:37:16" (1/3) ... [2025-03-09 06:37:17,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552e8c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:37:17, skipping insertion in model container [2025-03-09 06:37:17,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:37:16" (2/3) ... [2025-03-09 06:37:17,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552e8c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:37:17, skipping insertion in model container [2025-03-09 06:37:17,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:37:17" (3/3) ... [2025-03-09 06:37:17,838 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2025-03-09 06:37:17,849 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:37:17,852 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-array-int-subst.wvr.c that has 4 procedures, 114 locations, 1 initial locations, 6 loop locations, and 36 error locations. [2025-03-09 06:37:17,852 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:37:17,913 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-09 06:37:17,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 277 flow [2025-03-09 06:37:17,978 INFO L124 PetriNetUnfolderBase]: 15/125 cut-off events. [2025-03-09 06:37:17,979 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:37:17,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 15/125 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 493 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2025-03-09 06:37:17,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 277 flow [2025-03-09 06:37:17,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 123 transitions, 261 flow [2025-03-09 06:37:17,992 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:37:18,000 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;@2764121f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:37:18,000 INFO L334 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2025-03-09 06:37:18,003 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:37:18,003 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-09 06:37:18,003 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:37:18,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:18,004 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 06:37:18,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:18,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:18,010 INFO L85 PathProgramCache]: Analyzing trace with hash 913405, now seen corresponding path program 1 times [2025-03-09 06:37:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315542299] [2025-03-09 06:37:18,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:18,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:37:18,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:37:18,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:18,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:18,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:18,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315542299] [2025-03-09 06:37:18,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315542299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:18,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:18,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325208035] [2025-03-09 06:37:18,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:18,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:18,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:18,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:18,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:18,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-09 06:37:18,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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) [2025-03-09 06:37:18,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:18,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-09 06:37:18,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:19,826 INFO L124 PetriNetUnfolderBase]: 9698/20025 cut-off events. [2025-03-09 06:37:19,827 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2025-03-09 06:37:19,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33113 conditions, 20025 events. 9698/20025 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 194447 event pairs, 6400 based on Foata normal form. 3/16039 useless extension candidates. Maximal degree in co-relation 31926. Up to 12708 conditions per place. [2025-03-09 06:37:19,978 INFO L140 encePairwiseOnDemand]: 112/128 looper letters, 59 selfloop transitions, 10 changer transitions 0/132 dead transitions. [2025-03-09 06:37:19,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 132 transitions, 417 flow [2025-03-09 06:37:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2025-03-09 06:37:19,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662109375 [2025-03-09 06:37:19,988 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 261 flow. Second operand 4 states and 339 transitions. [2025-03-09 06:37:19,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 132 transitions, 417 flow [2025-03-09 06:37:19,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 132 transitions, 408 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:37:20,002 INFO L231 Difference]: Finished difference. Result has 119 places, 132 transitions, 340 flow [2025-03-09 06:37:20,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=119, PETRI_TRANSITIONS=132} [2025-03-09 06:37:20,008 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 1 predicate places. [2025-03-09 06:37:20,008 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 132 transitions, 340 flow [2025-03-09 06:37:20,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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) [2025-03-09 06:37:20,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:20,009 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-09 06:37:20,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:37:20,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:20,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:20,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1442216717, now seen corresponding path program 1 times [2025-03-09 06:37:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:20,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835528582] [2025-03-09 06:37:20,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:20,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:37:20,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:37:20,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:20,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835528582] [2025-03-09 06:37:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835528582] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:37:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002838322] [2025-03-09 06:37:20,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:20,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:37:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:20,148 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) [2025-03-09 06:37:20,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:37:20,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:37:20,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:37:20,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:20,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:20,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:37:20,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:37:20,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:20,254 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:37:20,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002838322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:20,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:37:20,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-09 06:37:20,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637773643] [2025-03-09 06:37:20,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:20,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:37:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:20,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:37:20,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:37:20,276 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-09 06:37:20,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 132 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 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) [2025-03-09 06:37:20,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:20,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-09 06:37:20,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:21,640 INFO L124 PetriNetUnfolderBase]: 9698/20022 cut-off events. [2025-03-09 06:37:21,640 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-03-09 06:37:21,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33005 conditions, 20022 events. 9698/20022 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 194367 event pairs, 6400 based on Foata normal form. 3/16041 useless extension candidates. Maximal degree in co-relation 32932. Up to 12693 conditions per place. [2025-03-09 06:37:21,830 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 49 selfloop transitions, 17 changer transitions 0/129 dead transitions. [2025-03-09 06:37:21,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 129 transitions, 460 flow [2025-03-09 06:37:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:37:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:37:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2025-03-09 06:37:21,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.60546875 [2025-03-09 06:37:21,834 INFO L175 Difference]: Start difference. First operand has 119 places, 132 transitions, 340 flow. Second operand 6 states and 465 transitions. [2025-03-09 06:37:21,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 129 transitions, 460 flow [2025-03-09 06:37:21,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:37:21,839 INFO L231 Difference]: Finished difference. Result has 121 places, 129 transitions, 362 flow [2025-03-09 06:37:21,840 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=121, PETRI_TRANSITIONS=129} [2025-03-09 06:37:21,840 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 3 predicate places. [2025-03-09 06:37:21,840 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 129 transitions, 362 flow [2025-03-09 06:37:21,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 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) [2025-03-09 06:37:21,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:21,841 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:21,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:37:22,041 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 [2025-03-09 06:37:22,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:22,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1787702729, now seen corresponding path program 1 times [2025-03-09 06:37:22,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:22,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138003451] [2025-03-09 06:37:22,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:22,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:22,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:37:22,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:37:22,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:22,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:22,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:22,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138003451] [2025-03-09 06:37:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138003451] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:22,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342089711] [2025-03-09 06:37:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:22,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:37:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:22,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:37:22,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:37:22,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-09 06:37:22,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 129 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-09 06:37:22,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:22,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-09 06:37:22,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:24,537 INFO L124 PetriNetUnfolderBase]: 21324/42780 cut-off events. [2025-03-09 06:37:24,537 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2025-03-09 06:37:24,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71281 conditions, 42780 events. 21324/42780 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 1902. Compared 448909 event pairs, 14052 based on Foata normal form. 241/34687 useless extension candidates. Maximal degree in co-relation 35730. Up to 14012 conditions per place. [2025-03-09 06:37:24,799 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 110 selfloop transitions, 6 changer transitions 0/180 dead transitions. [2025-03-09 06:37:24,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 180 transitions, 732 flow [2025-03-09 06:37:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:37:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:37:24,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 458 transitions. [2025-03-09 06:37:24,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.715625 [2025-03-09 06:37:24,803 INFO L175 Difference]: Start difference. First operand has 121 places, 129 transitions, 362 flow. Second operand 5 states and 458 transitions. [2025-03-09 06:37:24,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 180 transitions, 732 flow [2025-03-09 06:37:24,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 180 transitions, 680 flow, removed 6 selfloop flow, removed 5 redundant places. [2025-03-09 06:37:24,809 INFO L231 Difference]: Finished difference. Result has 122 places, 130 transitions, 349 flow [2025-03-09 06:37:24,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=349, PETRI_PLACES=122, PETRI_TRANSITIONS=130} [2025-03-09 06:37:24,810 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 4 predicate places. [2025-03-09 06:37:24,810 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 130 transitions, 349 flow [2025-03-09 06:37:24,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-09 06:37:24,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:24,811 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-09 06:37:24,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:37:24,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:24,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:24,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1759046043, now seen corresponding path program 1 times [2025-03-09 06:37:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:24,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717034561] [2025-03-09 06:37:24,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:24,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:37:24,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:37:24,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:24,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:24,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:24,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717034561] [2025-03-09 06:37:24,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717034561] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:37:24,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453697526] [2025-03-09 06:37:24,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:24,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:37:24,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:37:24,910 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) [2025-03-09 06:37:24,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:37:24,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:37:24,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:37:24,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:24,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:24,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:37:24,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:37:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:24,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:37:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:25,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453697526] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:37:25,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:37:25,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-09 06:37:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67623640] [2025-03-09 06:37:25,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:37:25,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:37:25,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:25,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:37:25,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:37:25,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-09 06:37:25,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 349 flow. Second operand has 12 states, 12 states have (on average 67.08333333333333) internal successors, (805), 12 states have internal predecessors, (805), 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) [2025-03-09 06:37:25,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:25,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-09 06:37:25,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:27,051 INFO L124 PetriNetUnfolderBase]: 19405/40071 cut-off events. [2025-03-09 06:37:27,052 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2025-03-09 06:37:27,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66095 conditions, 40071 events. 19405/40071 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 1829. Compared 428506 event pairs, 12800 based on Foata normal form. 12/32115 useless extension candidates. Maximal degree in co-relation 33104. Up to 25407 conditions per place. [2025-03-09 06:37:27,236 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 56 selfloop transitions, 37 changer transitions 0/157 dead transitions. [2025-03-09 06:37:27,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 157 transitions, 673 flow [2025-03-09 06:37:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:37:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:37:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2025-03-09 06:37:27,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953125 [2025-03-09 06:37:27,239 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 349 flow. Second operand 10 states and 762 transitions. [2025-03-09 06:37:27,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 157 transitions, 673 flow [2025-03-09 06:37:27,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 157 transitions, 670 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-09 06:37:27,242 INFO L231 Difference]: Finished difference. Result has 133 places, 157 transitions, 608 flow [2025-03-09 06:37:27,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=608, PETRI_PLACES=133, PETRI_TRANSITIONS=157} [2025-03-09 06:37:27,243 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2025-03-09 06:37:27,243 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 157 transitions, 608 flow [2025-03-09 06:37:27,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 67.08333333333333) internal successors, (805), 12 states have internal predecessors, (805), 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) [2025-03-09 06:37:27,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:27,243 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:27,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 06:37:27,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-09 06:37:27,444 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:27,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -415789372, now seen corresponding path program 1 times [2025-03-09 06:37:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:27,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833531659] [2025-03-09 06:37:27,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:27,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:27,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:37:27,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:37:27,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:27,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:27,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833531659] [2025-03-09 06:37:27,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833531659] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:27,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:27,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166483538] [2025-03-09 06:37:27,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:27,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:37:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:27,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:37:27,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:37:27,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-09 06:37:27,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 157 transitions, 608 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-09 06:37:27,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:27,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-09 06:37:27,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:31,821 INFO L124 PetriNetUnfolderBase]: 41223/82566 cut-off events. [2025-03-09 06:37:31,821 INFO L125 PetriNetUnfolderBase]: For 3083/3083 co-relation queries the response was YES. [2025-03-09 06:37:32,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139033 conditions, 82566 events. 41223/82566 cut-off events. For 3083/3083 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 941195 event pairs, 27029 based on Foata normal form. 480/67743 useless extension candidates. Maximal degree in co-relation 138813. Up to 27327 conditions per place. [2025-03-09 06:37:32,367 INFO L140 encePairwiseOnDemand]: 119/128 looper letters, 159 selfloop transitions, 12 changer transitions 0/235 dead transitions. [2025-03-09 06:37:32,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 235 transitions, 1285 flow [2025-03-09 06:37:32,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:37:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:37:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 607 transitions. [2025-03-09 06:37:32,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6774553571428571 [2025-03-09 06:37:32,369 INFO L175 Difference]: Start difference. First operand has 133 places, 157 transitions, 608 flow. Second operand 7 states and 607 transitions. [2025-03-09 06:37:32,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 235 transitions, 1285 flow [2025-03-09 06:37:32,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 235 transitions, 1221 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-03-09 06:37:32,376 INFO L231 Difference]: Finished difference. Result has 142 places, 166 transitions, 693 flow [2025-03-09 06:37:32,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=693, PETRI_PLACES=142, PETRI_TRANSITIONS=166} [2025-03-09 06:37:32,377 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2025-03-09 06:37:32,377 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 166 transitions, 693 flow [2025-03-09 06:37:32,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-09 06:37:32,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:32,377 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:32,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:37:32,377 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:32,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:32,377 INFO L85 PathProgramCache]: Analyzing trace with hash -5902596, now seen corresponding path program 1 times [2025-03-09 06:37:32,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:32,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371246672] [2025-03-09 06:37:32,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:32,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:32,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:37:32,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:37:32,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:32,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:32,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:32,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371246672] [2025-03-09 06:37:32,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371246672] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:32,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:32,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:32,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936198360] [2025-03-09 06:37:32,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:32,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:37:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:32,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:37:32,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:37:32,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-09 06:37:32,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 166 transitions, 693 flow. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2025-03-09 06:37:32,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:32,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-09 06:37:32,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:37:41,706 INFO L124 PetriNetUnfolderBase]: 85672/171076 cut-off events. [2025-03-09 06:37:41,706 INFO L125 PetriNetUnfolderBase]: For 1099/1099 co-relation queries the response was YES. [2025-03-09 06:37:42,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285638 conditions, 171076 events. 85672/171076 cut-off events. For 1099/1099 co-relation queries the response was YES. Maximal size of possible extension queue 7169. Compared 2117764 event pairs, 56444 based on Foata normal form. 1004/138812 useless extension candidates. Maximal degree in co-relation 285420. Up to 56360 conditions per place. [2025-03-09 06:37:43,150 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 129 selfloop transitions, 16 changer transitions 0/211 dead transitions. [2025-03-09 06:37:43,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 211 transitions, 1079 flow [2025-03-09 06:37:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:37:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:37:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2025-03-09 06:37:43,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2025-03-09 06:37:43,152 INFO L175 Difference]: Start difference. First operand has 142 places, 166 transitions, 693 flow. Second operand 5 states and 455 transitions. [2025-03-09 06:37:43,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 211 transitions, 1079 flow [2025-03-09 06:37:43,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 211 transitions, 1077 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-09 06:37:43,160 INFO L231 Difference]: Finished difference. Result has 148 places, 167 transitions, 746 flow [2025-03-09 06:37:43,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=746, PETRI_PLACES=148, PETRI_TRANSITIONS=167} [2025-03-09 06:37:43,164 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 30 predicate places. [2025-03-09 06:37:43,165 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 167 transitions, 746 flow [2025-03-09 06:37:43,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2025-03-09 06:37:43,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:43,165 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:43,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:37:43,165 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-09 06:37:43,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:43,166 INFO L85 PathProgramCache]: Analyzing trace with hash -182979567, now seen corresponding path program 1 times [2025-03-09 06:37:43,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:43,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856048551] [2025-03-09 06:37:43,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:43,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:43,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:37:43,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:37:43,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:43,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:43,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:43,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:43,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856048551] [2025-03-09 06:37:43,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856048551] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:43,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:43,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:37:43,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573432289] [2025-03-09 06:37:43,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:43,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:37:43,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:43,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:37:43,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:37:43,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-09 06:37:43,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 167 transitions, 746 flow. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2025-03-09 06:37:43,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:43,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-09 06:37:43,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand