./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:48:57,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:48:57,507 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:48:57,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:48:57,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:48:57,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:48:57,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:48:57,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:48:57,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:48:57,547 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:48:57,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:48:57,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:48:57,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:48:57,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:48:57,548 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:48:57,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:48:57,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:48:57,549 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:48:57,550 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:48:57,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:48:57,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:48:57,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:48:57,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:48:57,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:48:57,551 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:48:57,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:48:57,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:48:57,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:48:57,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:48:57,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:48:57,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:48:57,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:48:57,552 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-jdk21/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 -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 [2025-02-06 18:48:57,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:48:57,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:48:57,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:48:57,876 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:48:57,876 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:48:57,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2025-02-06 18:48:59,142 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64f558738/316bb71122a44fd2941c907dbcdcef8e/FLAGe6458c2b9 [2025-02-06 18:48:59,409 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:48:59,410 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2025-02-06 18:48:59,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64f558738/316bb71122a44fd2941c907dbcdcef8e/FLAGe6458c2b9 [2025-02-06 18:48:59,435 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/64f558738/316bb71122a44fd2941c907dbcdcef8e [2025-02-06 18:48:59,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:48:59,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:48:59,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:48:59,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:48:59,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:48:59,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79150c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59, skipping insertion in model container [2025-02-06 18:48:59,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:48:59,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:48:59,660 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:48:59,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:48:59,735 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:48:59,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59 WrapperNode [2025-02-06 18:48:59,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:48:59,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:48:59,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:48:59,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:48:59,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,825 INFO L138 Inliner]: procedures = 25, calls = 62, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 725 [2025-02-06 18:48:59,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:48:59,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:48:59,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:48:59,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:48:59,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,873 INFO L175 MemorySlicer]: Split 29 memory accesses to 2 slices as follows [2, 27]. 93 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]. [2025-02-06 18:48:59,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,887 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:48:59,898 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:48:59,898 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:48:59,898 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:48:59,899 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (1/1) ... [2025-02-06 18:48:59,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:48:59,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:59,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:48:59,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:48:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:48:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:48:59,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:48:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:48:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:48:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:48:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:48:59,957 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:49:00,080 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:49:00,082 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:49:01,008 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:49:01,009 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:49:01,635 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:49:01,636 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:49:01,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:49:01 BoogieIcfgContainer [2025-02-06 18:49:01,637 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:49:01,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:49:01,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:49:01,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:49:01,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:48:59" (1/3) ... [2025-02-06 18:49:01,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3558ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:49:01, skipping insertion in model container [2025-02-06 18:49:01,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:59" (2/3) ... [2025-02-06 18:49:01,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3558ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:49:01, skipping insertion in model container [2025-02-06 18:49:01,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:49:01" (3/3) ... [2025-02-06 18:49:01,646 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2025-02-06 18:49:01,664 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:49:01,666 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-subst.wvr.c that has 4 procedures, 210 locations, 1 initial locations, 6 loop locations, and 60 error locations. [2025-02-06 18:49:01,667 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:49:01,824 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:49:01,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 248 transitions, 517 flow [2025-02-06 18:49:01,957 INFO L124 PetriNetUnfolderBase]: 39/245 cut-off events. [2025-02-06 18:49:01,960 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:49:01,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 245 events. 39/245 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1416 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 225. Up to 2 conditions per place. [2025-02-06 18:49:01,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 248 transitions, 517 flow [2025-02-06 18:49:02,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 243 transitions, 501 flow [2025-02-06 18:49:02,018 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:49:02,032 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;@6d58cfc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:49:02,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 117 error locations. [2025-02-06 18:49:02,038 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:49:02,039 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-06 18:49:02,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:49:02,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:02,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:49:02,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2025-02-06 18:49:02,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:02,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1998221, now seen corresponding path program 1 times [2025-02-06 18:49:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:02,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946847537] [2025-02-06 18:49:02,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:02,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:02,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:49:02,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:49:02,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:02,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:02,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:02,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946847537] [2025-02-06 18:49:02,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946847537] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:02,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:02,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:49:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989580582] [2025-02-06 18:49:02,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:02,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:02,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:02,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:02,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:02,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 248 [2025-02-06 18:49:02,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 243 transitions, 501 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 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) [2025-02-06 18:49:02,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:02,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 248 [2025-02-06 18:49:02,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:16,522 INFO L124 PetriNetUnfolderBase]: 124995/225807 cut-off events. [2025-02-06 18:49:16,522 INFO L125 PetriNetUnfolderBase]: For 2493/2493 co-relation queries the response was YES. [2025-02-06 18:49:16,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387951 conditions, 225807 events. 124995/225807 cut-off events. For 2493/2493 co-relation queries the response was YES. Maximal size of possible extension queue 11516. Compared 2644239 event pairs, 82770 based on Foata normal form. 3/181386 useless extension candidates. Maximal degree in co-relation 381895. Up to 160188 conditions per place. [2025-02-06 18:49:18,050 INFO L140 encePairwiseOnDemand]: 229/248 looper letters, 119 selfloop transitions, 10 changer transitions 0/249 dead transitions. [2025-02-06 18:49:18,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 249 transitions, 771 flow [2025-02-06 18:49:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 630 transitions. [2025-02-06 18:49:18,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6350806451612904 [2025-02-06 18:49:18,070 INFO L175 Difference]: Start difference. First operand has 214 places, 243 transitions, 501 flow. Second operand 4 states and 630 transitions. [2025-02-06 18:49:18,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 249 transitions, 771 flow [2025-02-06 18:49:18,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 249 transitions, 762 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:49:18,203 INFO L231 Difference]: Finished difference. Result has 215 places, 249 transitions, 574 flow [2025-02-06 18:49:18,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=574, PETRI_PLACES=215, PETRI_TRANSITIONS=249} [2025-02-06 18:49:18,209 INFO L279 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2025-02-06 18:49:18,209 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 249 transitions, 574 flow [2025-02-06 18:49:18,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 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) [2025-02-06 18:49:18,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:18,210 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 18:49:18,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:49:18,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2025-02-06 18:49:18,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash -598650705, now seen corresponding path program 1 times [2025-02-06 18:49:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306140121] [2025-02-06 18:49:18,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:18,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:18,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:49:18,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:49:18,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:18,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:18,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:18,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306140121] [2025-02-06 18:49:18,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306140121] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:18,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43648494] [2025-02-06 18:49:18,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:18,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:18,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:18,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:18,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:49:18,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:49:18,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:49:18,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:18,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:18,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:49:18,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:18,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:49:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43648494] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:18,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:49:18,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 18:49:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270919701] [2025-02-06 18:49:18,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:18,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:49:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:18,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:49:18,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:49:18,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 248 [2025-02-06 18:49:18,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 249 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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) [2025-02-06 18:49:18,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:18,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 248 [2025-02-06 18:49:18,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:31,663 INFO L124 PetriNetUnfolderBase]: 124995/225804 cut-off events. [2025-02-06 18:49:31,663 INFO L125 PetriNetUnfolderBase]: For 617/617 co-relation queries the response was YES. [2025-02-06 18:49:32,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387303 conditions, 225804 events. 124995/225804 cut-off events. For 617/617 co-relation queries the response was YES. Maximal size of possible extension queue 11516. Compared 2644226 event pairs, 82770 based on Foata normal form. 3/181388 useless extension candidates. Maximal degree in co-relation 387230. Up to 160173 conditions per place. [2025-02-06 18:49:33,206 INFO L140 encePairwiseOnDemand]: 235/248 looper letters, 109 selfloop transitions, 17 changer transitions 0/246 dead transitions. [2025-02-06 18:49:33,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 246 transitions, 814 flow [2025-02-06 18:49:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:49:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:49:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 867 transitions. [2025-02-06 18:49:33,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5826612903225806 [2025-02-06 18:49:33,210 INFO L175 Difference]: Start difference. First operand has 215 places, 249 transitions, 574 flow. Second operand 6 states and 867 transitions. [2025-02-06 18:49:33,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 246 transitions, 814 flow [2025-02-06 18:49:33,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 246 transitions, 814 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:49:33,215 INFO L231 Difference]: Finished difference. Result has 217 places, 246 transitions, 596 flow [2025-02-06 18:49:33,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=596, PETRI_PLACES=217, PETRI_TRANSITIONS=246} [2025-02-06 18:49:33,217 INFO L279 CegarLoopForPetriNet]: 214 programPoint places, 3 predicate places. [2025-02-06 18:49:33,217 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 246 transitions, 596 flow [2025-02-06 18:49:33,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 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) [2025-02-06 18:49:33,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:33,218 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-06 18:49:33,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 18:49:33,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:33,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2025-02-06 18:49:33,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1378300765, now seen corresponding path program 1 times [2025-02-06 18:49:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:33,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278286755] [2025-02-06 18:49:33,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:33,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:33,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:49:33,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:49:33,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:33,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:33,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:33,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278286755] [2025-02-06 18:49:33,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278286755] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:33,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265203889] [2025-02-06 18:49:33,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:33,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:33,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:33,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:33,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:49:33,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:49:33,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:49:33,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:33,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:33,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:49:33,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:33,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:49:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:49:33,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265203889] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:49:33,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:49:33,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:49:33,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273625246] [2025-02-06 18:49:33,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:49:33,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:49:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:33,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:49:33,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:49:33,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 248 [2025-02-06 18:49:33,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 246 transitions, 596 flow. Second operand has 12 states, 12 states have (on average 124.08333333333333) internal successors, (1489), 12 states have internal predecessors, (1489), 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) [2025-02-06 18:49:33,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:33,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 248 [2025-02-06 18:49:33,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand