./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-commit-1.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 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:06:17,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:06:17,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:06:17,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:06:17,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:06:18,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:06:18,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:06:18,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:06:18,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:06:18,003 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:06:18,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:06:18,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:06:18,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:06:18,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:06:18,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:06:18,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:06:18,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:06:18,005 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:06:18,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:06:18,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:06:18,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:06:18,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:06:18,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:06:18,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:06:18,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:06:18,008 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:06:18,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:06:18,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:06:18,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:06:18,010 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:06:18,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:06:18,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:06:18,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:06:18,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:06:18,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:06:18,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:06:18,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:06:18,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:06:18,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:06:18,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:06:18,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:06:18,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:06:18,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:06:18,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:06:18,018 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e [2024-11-19 14:06:18,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:06:18,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:06:18,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:06:18,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:06:18,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:06:18,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2024-11-19 14:06:19,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:06:20,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:06:20,001 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2024-11-19 14:06:20,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c446340/e393437da417416cb5c2f8f028240629/FLAG2a1a7bdec [2024-11-19 14:06:20,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c446340/e393437da417416cb5c2f8f028240629 [2024-11-19 14:06:20,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:06:20,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:06:20,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:06:20,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:06:20,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:06:20,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3654ad3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20, skipping insertion in model container [2024-11-19 14:06:20,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,070 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:06:20,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:06:20,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:06:20,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:06:20,390 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:06:20,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20 WrapperNode [2024-11-19 14:06:20,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:06:20,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:06:20,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:06:20,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:06:20,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,444 INFO L138 Inliner]: procedures = 24, calls = 54, calls flagged for inlining = 21, calls inlined = 25, statements flattened = 361 [2024-11-19 14:06:20,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:06:20,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:06:20,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:06:20,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:06:20,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,496 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 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]. [2024-11-19 14:06:20,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:06:20,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:06:20,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:06:20,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:06:20,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (1/1) ... [2024-11-19 14:06:20,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:06:20,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:20,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:06:20,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:06:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:06:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:06:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:06:20,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:06:20,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:06:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:06:20,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:06:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:06:20,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:06:20,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:06:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:06:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 14:06:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 14:06:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:06:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:06:20,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:06:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:06:20,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:06:20,636 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:06:20,836 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:06:20,839 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:06:21,378 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:06:21,380 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:06:21,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:06:21,938 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-19 14:06:21,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:06:21 BoogieIcfgContainer [2024-11-19 14:06:21,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:06:21,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:06:21,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:06:21,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:06:21,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:06:20" (1/3) ... [2024-11-19 14:06:21,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7b6299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:06:21, skipping insertion in model container [2024-11-19 14:06:21,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:06:20" (2/3) ... [2024-11-19 14:06:21,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7b6299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:06:21, skipping insertion in model container [2024-11-19 14:06:21,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:06:21" (3/3) ... [2024-11-19 14:06:21,950 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2024-11-19 14:06:21,969 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:06:21,969 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-19 14:06:21,970 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:06:22,061 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:06:22,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 169 flow [2024-11-19 14:06:22,190 INFO L124 PetriNetUnfolderBase]: 9/71 cut-off events. [2024-11-19 14:06:22,190 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:06:22,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 71 events. 9/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 223 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-19 14:06:22,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 169 flow [2024-11-19 14:06:22,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 153 flow [2024-11-19 14:06:22,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:06:22,221 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;@32063173, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:06:22,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-19 14:06:22,226 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:06:22,227 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 14:06:22,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:06:22,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:22,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:06:22,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:22,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:22,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1069047, now seen corresponding path program 1 times [2024-11-19 14:06:22,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:22,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127110780] [2024-11-19 14:06:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:22,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:22,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127110780] [2024-11-19 14:06:22,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127110780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:22,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:22,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:06:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858228001] [2024-11-19 14:06:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:22,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:06:22,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:22,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:06:22,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:06:22,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-19 14:06:22,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:22,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:22,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-19 14:06:22,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:23,914 INFO L124 PetriNetUnfolderBase]: 5880/8361 cut-off events. [2024-11-19 14:06:23,914 INFO L125 PetriNetUnfolderBase]: For 364/364 co-relation queries the response was YES. [2024-11-19 14:06:23,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17056 conditions, 8361 events. 5880/8361 cut-off events. For 364/364 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 43340 event pairs, 5179 based on Foata normal form. 3/5898 useless extension candidates. Maximal degree in co-relation 16379. Up to 8331 conditions per place. [2024-11-19 14:06:23,985 INFO L140 encePairwiseOnDemand]: 47/74 looper letters, 51 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2024-11-19 14:06:23,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 271 flow [2024-11-19 14:06:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:06:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:06:23,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-11-19 14:06:24,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38513513513513514 [2024-11-19 14:06:24,001 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 153 flow. Second operand 4 states and 114 transitions. [2024-11-19 14:06:24,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 271 flow [2024-11-19 14:06:24,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 67 transitions, 262 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:06:24,016 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 210 flow [2024-11-19 14:06:24,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2024-11-19 14:06:24,024 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -7 predicate places. [2024-11-19 14:06:24,025 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 210 flow [2024-11-19 14:06:24,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:24,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:24,025 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 14:06:24,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:06:24,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:24,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:24,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1784279074, now seen corresponding path program 1 times [2024-11-19 14:06:24,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:24,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370934373] [2024-11-19 14:06:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:24,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:24,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:24,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370934373] [2024-11-19 14:06:24,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370934373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:24,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289181594] [2024-11-19 14:06:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:24,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:24,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:24,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:24,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:06:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:24,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:06:24,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:24,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:06:24,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289181594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:24,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:06:24,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:06:24,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802967224] [2024-11-19 14:06:24,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:24,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:06:24,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:24,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:06:24,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:06:24,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-19 14:06:24,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:24,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:24,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-19 14:06:24,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:25,575 INFO L124 PetriNetUnfolderBase]: 5880/8358 cut-off events. [2024-11-19 14:06:25,575 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-19 14:06:25,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16978 conditions, 8358 events. 5880/8358 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 43380 event pairs, 5179 based on Foata normal form. 3/5900 useless extension candidates. Maximal degree in co-relation 16905. Up to 8316 conditions per place. [2024-11-19 14:06:25,646 INFO L140 encePairwiseOnDemand]: 61/74 looper letters, 41 selfloop transitions, 17 changer transitions 0/64 dead transitions. [2024-11-19 14:06:25,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 314 flow [2024-11-19 14:06:25,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:06:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:06:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-19 14:06:25,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25900900900900903 [2024-11-19 14:06:25,649 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 210 flow. Second operand 6 states and 115 transitions. [2024-11-19 14:06:25,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 314 flow [2024-11-19 14:06:25,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:06:25,651 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 232 flow [2024-11-19 14:06:25,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-19 14:06:25,652 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2024-11-19 14:06:25,653 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 232 flow [2024-11-19 14:06:25,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:25,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:25,653 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 14:06:25,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 14:06:25,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:25,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:25,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:25,860 INFO L85 PathProgramCache]: Analyzing trace with hash -521922476, now seen corresponding path program 1 times [2024-11-19 14:06:25,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:25,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412360254] [2024-11-19 14:06:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:25,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:25,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:25,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412360254] [2024-11-19 14:06:25,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412360254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:25,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198725471] [2024-11-19 14:06:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:25,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:25,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:25,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:25,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:06:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:26,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:06:26,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:26,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:06:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:26,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198725471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:06:26,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:06:26,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-19 14:06:26,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195280336] [2024-11-19 14:06:26,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:06:26,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:06:26,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:26,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:06:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:06:26,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-19 14:06:26,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 232 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:26,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:26,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-19 14:06:26,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:27,109 INFO L124 PetriNetUnfolderBase]: 5889/8394 cut-off events. [2024-11-19 14:06:27,110 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-19 14:06:27,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17119 conditions, 8394 events. 5889/8394 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 43759 event pairs, 5179 based on Foata normal form. 9/5942 useless extension candidates. Maximal degree in co-relation 16907. Up to 8331 conditions per place. [2024-11-19 14:06:27,160 INFO L140 encePairwiseOnDemand]: 61/74 looper letters, 48 selfloop transitions, 37 changer transitions 0/91 dead transitions. [2024-11-19 14:06:27,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 91 transitions, 576 flow [2024-11-19 14:06:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:06:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:06:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2024-11-19 14:06:27,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24864864864864866 [2024-11-19 14:06:27,164 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 232 flow. Second operand 10 states and 184 transitions. [2024-11-19 14:06:27,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 91 transitions, 576 flow [2024-11-19 14:06:27,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 91 transitions, 493 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-19 14:06:27,168 INFO L231 Difference]: Finished difference. Result has 72 places, 91 transitions, 447 flow [2024-11-19 14:06:27,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=447, PETRI_PLACES=72, PETRI_TRANSITIONS=91} [2024-11-19 14:06:27,171 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 2 predicate places. [2024-11-19 14:06:27,171 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 91 transitions, 447 flow [2024-11-19 14:06:27,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:27,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:27,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:27,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:06:27,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-19 14:06:27,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:27,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:27,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1810309931, now seen corresponding path program 1 times [2024-11-19 14:06:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:27,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267754425] [2024-11-19 14:06:27,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:27,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:27,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:27,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:27,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267754425] [2024-11-19 14:06:27,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267754425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:27,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:27,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:06:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958521021] [2024-11-19 14:06:27,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:27,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:06:27,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:27,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:06:27,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:06:27,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:27,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 91 transitions, 447 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:27,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:27,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:27,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:28,573 INFO L124 PetriNetUnfolderBase]: 7159/10222 cut-off events. [2024-11-19 14:06:28,575 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2024-11-19 14:06:28,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20844 conditions, 10222 events. 7159/10222 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 54687 event pairs, 2362 based on Foata normal form. 114/7380 useless extension candidates. Maximal degree in co-relation 20746. Up to 8328 conditions per place. [2024-11-19 14:06:28,668 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 102 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2024-11-19 14:06:28,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 114 transitions, 707 flow [2024-11-19 14:06:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:06:28,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:06:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-19 14:06:28,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-11-19 14:06:28,670 INFO L175 Difference]: Start difference. First operand has 72 places, 91 transitions, 447 flow. Second operand 3 states and 116 transitions. [2024-11-19 14:06:28,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 114 transitions, 707 flow [2024-11-19 14:06:28,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 114 transitions, 670 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 14:06:28,675 INFO L231 Difference]: Finished difference. Result has 73 places, 93 transitions, 431 flow [2024-11-19 14:06:28,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=73, PETRI_TRANSITIONS=93} [2024-11-19 14:06:28,676 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2024-11-19 14:06:28,677 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 93 transitions, 431 flow [2024-11-19 14:06:28,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:28,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:28,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:28,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:06:28,678 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:28,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:28,678 INFO L85 PathProgramCache]: Analyzing trace with hash 30420227, now seen corresponding path program 1 times [2024-11-19 14:06:28,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:28,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487145445] [2024-11-19 14:06:28,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:28,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:28,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:28,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:28,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487145445] [2024-11-19 14:06:28,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487145445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:28,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:28,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:06:28,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928729251] [2024-11-19 14:06:28,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:28,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:06:28,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:28,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:06:28,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:06:28,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:28,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 93 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:28,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:28,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:28,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:29,651 INFO L124 PetriNetUnfolderBase]: 6818/9772 cut-off events. [2024-11-19 14:06:29,652 INFO L125 PetriNetUnfolderBase]: For 494/494 co-relation queries the response was YES. [2024-11-19 14:06:29,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20760 conditions, 9772 events. 6818/9772 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 48998 event pairs, 2901 based on Foata normal form. 212/7643 useless extension candidates. Maximal degree in co-relation 20665. Up to 6361 conditions per place. [2024-11-19 14:06:29,750 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 104 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-11-19 14:06:29,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 115 transitions, 692 flow [2024-11-19 14:06:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:06:29,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:06:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-19 14:06:29,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-11-19 14:06:29,752 INFO L175 Difference]: Start difference. First operand has 73 places, 93 transitions, 431 flow. Second operand 3 states and 116 transitions. [2024-11-19 14:06:29,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 115 transitions, 692 flow [2024-11-19 14:06:29,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 115 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:06:29,756 INFO L231 Difference]: Finished difference. Result has 75 places, 93 transitions, 438 flow [2024-11-19 14:06:29,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=75, PETRI_TRANSITIONS=93} [2024-11-19 14:06:29,757 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2024-11-19 14:06:29,757 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 93 transitions, 438 flow [2024-11-19 14:06:29,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:29,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:29,758 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:29,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:06:29,758 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:29,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1252452778, now seen corresponding path program 1 times [2024-11-19 14:06:29,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:29,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024484626] [2024-11-19 14:06:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:29,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:29,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:29,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024484626] [2024-11-19 14:06:29,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024484626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:29,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:29,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:06:29,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223034315] [2024-11-19 14:06:29,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:29,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:06:29,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:29,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:06:29,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:06:29,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:29,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 93 transitions, 438 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:29,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:29,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:29,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:30,945 INFO L124 PetriNetUnfolderBase]: 7435/10775 cut-off events. [2024-11-19 14:06:30,946 INFO L125 PetriNetUnfolderBase]: For 781/781 co-relation queries the response was YES. [2024-11-19 14:06:30,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23517 conditions, 10775 events. 7435/10775 cut-off events. For 781/781 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 55906 event pairs, 6755 based on Foata normal form. 112/8585 useless extension candidates. Maximal degree in co-relation 23364. Up to 9739 conditions per place. [2024-11-19 14:06:31,003 INFO L140 encePairwiseOnDemand]: 65/74 looper letters, 100 selfloop transitions, 9 changer transitions 25/143 dead transitions. [2024-11-19 14:06:31,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 143 transitions, 941 flow [2024-11-19 14:06:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:06:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:06:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-19 14:06:31,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42702702702702705 [2024-11-19 14:06:31,005 INFO L175 Difference]: Start difference. First operand has 75 places, 93 transitions, 438 flow. Second operand 5 states and 158 transitions. [2024-11-19 14:06:31,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 143 transitions, 941 flow [2024-11-19 14:06:31,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 143 transitions, 939 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:06:31,012 INFO L231 Difference]: Finished difference. Result has 80 places, 99 transitions, 523 flow [2024-11-19 14:06:31,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=523, PETRI_PLACES=80, PETRI_TRANSITIONS=99} [2024-11-19 14:06:31,014 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 10 predicate places. [2024-11-19 14:06:31,014 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 99 transitions, 523 flow [2024-11-19 14:06:31,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:31,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:31,015 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-19 14:06:31,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:06:31,015 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:31,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:31,015 INFO L85 PathProgramCache]: Analyzing trace with hash -178504993, now seen corresponding path program 2 times [2024-11-19 14:06:31,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:31,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258055767] [2024-11-19 14:06:31,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:06:31,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:31,032 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:06:31,032 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:06:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:06:31,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258055767] [2024-11-19 14:06:31,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258055767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188793429] [2024-11-19 14:06:31,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:06:31,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:31,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:31,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:31,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:06:31,170 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:06:31,171 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:06:31,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:06:31,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:06:31,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:06:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:06:31,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188793429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:06:31,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:06:31,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-19 14:06:31,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541392585] [2024-11-19 14:06:31,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:06:31,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:06:31,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:31,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:06:31,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:06:31,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-19 14:06:31,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 99 transitions, 523 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:31,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:31,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-19 14:06:31,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:32,216 INFO L124 PetriNetUnfolderBase]: 7434/10769 cut-off events. [2024-11-19 14:06:32,216 INFO L125 PetriNetUnfolderBase]: For 1156/1156 co-relation queries the response was YES. [2024-11-19 14:06:32,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23857 conditions, 10769 events. 7434/10769 cut-off events. For 1156/1156 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 56781 event pairs, 6755 based on Foata normal form. 5/8460 useless extension candidates. Maximal degree in co-relation 23724. Up to 10653 conditions per place. [2024-11-19 14:06:32,276 INFO L140 encePairwiseOnDemand]: 63/74 looper letters, 47 selfloop transitions, 36 changer transitions 7/96 dead transitions. [2024-11-19 14:06:32,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 96 transitions, 673 flow [2024-11-19 14:06:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:06:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:06:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-19 14:06:32,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28716216216216217 [2024-11-19 14:06:32,278 INFO L175 Difference]: Start difference. First operand has 80 places, 99 transitions, 523 flow. Second operand 4 states and 85 transitions. [2024-11-19 14:06:32,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 96 transitions, 673 flow [2024-11-19 14:06:32,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 96 transitions, 637 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-19 14:06:32,285 INFO L231 Difference]: Finished difference. Result has 75 places, 89 transitions, 464 flow [2024-11-19 14:06:32,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=464, PETRI_PLACES=75, PETRI_TRANSITIONS=89} [2024-11-19 14:06:32,286 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2024-11-19 14:06:32,286 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 89 transitions, 464 flow [2024-11-19 14:06:32,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:32,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:32,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:32,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:06:32,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:32,494 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:32,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash 533893141, now seen corresponding path program 1 times [2024-11-19 14:06:32,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:32,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70455645] [2024-11-19 14:06:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:32,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:32,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:06:32,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:32,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70455645] [2024-11-19 14:06:32,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70455645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:32,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270495598] [2024-11-19 14:06:32,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:32,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:32,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:32,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:32,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:06:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:32,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:06:32,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:06:32,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:06:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270495598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:32,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:06:32,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-19 14:06:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402534334] [2024-11-19 14:06:32,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:32,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:06:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:06:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:06:32,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:32,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 89 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:32,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:32,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:32,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:33,439 INFO L124 PetriNetUnfolderBase]: 4794/6908 cut-off events. [2024-11-19 14:06:33,439 INFO L125 PetriNetUnfolderBase]: For 841/841 co-relation queries the response was YES. [2024-11-19 14:06:33,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15141 conditions, 6908 events. 4794/6908 cut-off events. For 841/841 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 33948 event pairs, 4276 based on Foata normal form. 448/5972 useless extension candidates. Maximal degree in co-relation 14901. Up to 6880 conditions per place. [2024-11-19 14:06:33,484 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 78 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2024-11-19 14:06:33,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 85 transitions, 610 flow [2024-11-19 14:06:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:06:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:06:33,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-19 14:06:33,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4099099099099099 [2024-11-19 14:06:33,486 INFO L175 Difference]: Start difference. First operand has 75 places, 89 transitions, 464 flow. Second operand 3 states and 91 transitions. [2024-11-19 14:06:33,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 85 transitions, 610 flow [2024-11-19 14:06:33,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 522 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-19 14:06:33,493 INFO L231 Difference]: Finished difference. Result has 66 places, 85 transitions, 366 flow [2024-11-19 14:06:33,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=66, PETRI_TRANSITIONS=85} [2024-11-19 14:06:33,494 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2024-11-19 14:06:33,494 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 85 transitions, 366 flow [2024-11-19 14:06:33,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:33,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:33,495 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:33,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 14:06:33,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:33,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:33,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:33,696 INFO L85 PathProgramCache]: Analyzing trace with hash -629180654, now seen corresponding path program 1 times [2024-11-19 14:06:33,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:33,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552717992] [2024-11-19 14:06:33,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:33,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:06:33,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:33,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552717992] [2024-11-19 14:06:33,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552717992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:33,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:33,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:06:33,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208249022] [2024-11-19 14:06:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:33,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:06:33,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:33,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:06:33,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:06:33,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:33,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 85 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:33,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:33,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:33,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:34,155 INFO L124 PetriNetUnfolderBase]: 3764/5470 cut-off events. [2024-11-19 14:06:34,156 INFO L125 PetriNetUnfolderBase]: For 567/567 co-relation queries the response was YES. [2024-11-19 14:06:34,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11987 conditions, 5470 events. 3764/5470 cut-off events. For 567/567 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 25175 event pairs, 1727 based on Foata normal form. 124/4476 useless extension candidates. Maximal degree in co-relation 11973. Up to 4119 conditions per place. [2024-11-19 14:06:34,178 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 94 selfloop transitions, 2 changer transitions 6/108 dead transitions. [2024-11-19 14:06:34,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 108 transitions, 626 flow [2024-11-19 14:06:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:06:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:06:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-19 14:06:34,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5135135135135135 [2024-11-19 14:06:34,180 INFO L175 Difference]: Start difference. First operand has 66 places, 85 transitions, 366 flow. Second operand 3 states and 114 transitions. [2024-11-19 14:06:34,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 108 transitions, 626 flow [2024-11-19 14:06:34,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:06:34,183 INFO L231 Difference]: Finished difference. Result has 68 places, 86 transitions, 379 flow [2024-11-19 14:06:34,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=68, PETRI_TRANSITIONS=86} [2024-11-19 14:06:34,184 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2024-11-19 14:06:34,184 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 86 transitions, 379 flow [2024-11-19 14:06:34,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:34,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:34,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:34,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:06:34,185 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:34,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1603211847, now seen corresponding path program 1 times [2024-11-19 14:06:34,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:34,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768543798] [2024-11-19 14:06:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:34,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:06:34,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:34,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768543798] [2024-11-19 14:06:34,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768543798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:34,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:34,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:06:34,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007503348] [2024-11-19 14:06:34,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:34,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:06:34,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:06:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:06:34,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:34,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 86 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:34,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:34,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:34,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:34,774 INFO L124 PetriNetUnfolderBase]: 4499/6625 cut-off events. [2024-11-19 14:06:34,775 INFO L125 PetriNetUnfolderBase]: For 749/749 co-relation queries the response was YES. [2024-11-19 14:06:34,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14890 conditions, 6625 events. 4499/6625 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 32175 event pairs, 4052 based on Foata normal form. 20/5449 useless extension candidates. Maximal degree in co-relation 14874. Up to 5411 conditions per place. [2024-11-19 14:06:34,800 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 72 selfloop transitions, 7 changer transitions 23/108 dead transitions. [2024-11-19 14:06:34,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 108 transitions, 637 flow [2024-11-19 14:06:34,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:06:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:06:34,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2024-11-19 14:06:34,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4358108108108108 [2024-11-19 14:06:34,801 INFO L175 Difference]: Start difference. First operand has 68 places, 86 transitions, 379 flow. Second operand 4 states and 129 transitions. [2024-11-19 14:06:34,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 108 transitions, 637 flow [2024-11-19 14:06:34,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 108 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:06:34,804 INFO L231 Difference]: Finished difference. Result has 71 places, 85 transitions, 396 flow [2024-11-19 14:06:34,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=71, PETRI_TRANSITIONS=85} [2024-11-19 14:06:34,805 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places. [2024-11-19 14:06:34,805 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 85 transitions, 396 flow [2024-11-19 14:06:34,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:34,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:34,806 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:34,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:06:34,806 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:34,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash 210344465, now seen corresponding path program 1 times [2024-11-19 14:06:34,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:34,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732770153] [2024-11-19 14:06:34,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:34,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:35,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:06:35,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:35,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732770153] [2024-11-19 14:06:35,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732770153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:35,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546986560] [2024-11-19 14:06:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:35,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:35,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:35,013 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:35,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:06:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:35,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:06:35,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:06:35,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:06:35,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546986560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:35,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:06:35,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 14:06:35,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550661557] [2024-11-19 14:06:35,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:35,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:06:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:06:35,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 14:06:35,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:35,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 85 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:35,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:35,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:35,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:35,570 INFO L124 PetriNetUnfolderBase]: 3132/4577 cut-off events. [2024-11-19 14:06:35,570 INFO L125 PetriNetUnfolderBase]: For 727/727 co-relation queries the response was YES. [2024-11-19 14:06:35,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10361 conditions, 4577 events. 3132/4577 cut-off events. For 727/727 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 20799 event pairs, 2748 based on Foata normal form. 108/3952 useless extension candidates. Maximal degree in co-relation 10343. Up to 4549 conditions per place. [2024-11-19 14:06:35,584 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 76 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2024-11-19 14:06:35,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 83 transitions, 542 flow [2024-11-19 14:06:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:06:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:06:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-11-19 14:06:35,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3918918918918919 [2024-11-19 14:06:35,586 INFO L175 Difference]: Start difference. First operand has 71 places, 85 transitions, 396 flow. Second operand 3 states and 87 transitions. [2024-11-19 14:06:35,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 83 transitions, 542 flow [2024-11-19 14:06:35,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 83 transitions, 526 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-19 14:06:35,589 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 374 flow [2024-11-19 14:06:35,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2024-11-19 14:06:35,590 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2024-11-19 14:06:35,590 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 374 flow [2024-11-19 14:06:35,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:35,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:35,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:35,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 14:06:35,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 14:06:35,791 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:35,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:35,792 INFO L85 PathProgramCache]: Analyzing trace with hash 277604180, now seen corresponding path program 1 times [2024-11-19 14:06:35,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:35,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215048972] [2024-11-19 14:06:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:35,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:06:35,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:35,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215048972] [2024-11-19 14:06:35,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215048972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:35,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:35,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:06:35,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963874952] [2024-11-19 14:06:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:35,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:06:35,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:35,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:06:35,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:06:35,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:35,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:35,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:35,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:35,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:36,322 INFO L124 PetriNetUnfolderBase]: 3909/5817 cut-off events. [2024-11-19 14:06:36,322 INFO L125 PetriNetUnfolderBase]: For 681/681 co-relation queries the response was YES. [2024-11-19 14:06:36,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12969 conditions, 5817 events. 3909/5817 cut-off events. For 681/681 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 27851 event pairs, 3518 based on Foata normal form. 28/4894 useless extension candidates. Maximal degree in co-relation 12952. Up to 4533 conditions per place. [2024-11-19 14:06:36,338 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 70 selfloop transitions, 6 changer transitions 41/123 dead transitions. [2024-11-19 14:06:36,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 123 transitions, 755 flow [2024-11-19 14:06:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:06:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:06:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2024-11-19 14:06:36,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4527027027027027 [2024-11-19 14:06:36,339 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 374 flow. Second operand 4 states and 134 transitions. [2024-11-19 14:06:36,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 123 transitions, 755 flow [2024-11-19 14:06:36,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 123 transitions, 754 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:06:36,343 INFO L231 Difference]: Finished difference. Result has 71 places, 82 transitions, 389 flow [2024-11-19 14:06:36,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=389, PETRI_PLACES=71, PETRI_TRANSITIONS=82} [2024-11-19 14:06:36,344 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places. [2024-11-19 14:06:36,344 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 82 transitions, 389 flow [2024-11-19 14:06:36,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:36,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:36,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:36,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 14:06:36,345 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:36,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1779050688, now seen corresponding path program 1 times [2024-11-19 14:06:36,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:36,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234996438] [2024-11-19 14:06:36,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:06:36,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:36,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234996438] [2024-11-19 14:06:36,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234996438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:36,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341860005] [2024-11-19 14:06:36,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:36,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:36,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:36,533 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:36,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:06:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:36,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:06:36,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:06:36,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:06:36,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341860005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:36,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:06:36,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 8 [2024-11-19 14:06:36,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025897008] [2024-11-19 14:06:36,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:36,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:06:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:36,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:06:36,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:06:36,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:36,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 82 transitions, 389 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:36,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:36,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:36,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:37,322 INFO L124 PetriNetUnfolderBase]: 6683/9671 cut-off events. [2024-11-19 14:06:37,322 INFO L125 PetriNetUnfolderBase]: For 2001/2001 co-relation queries the response was YES. [2024-11-19 14:06:37,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22454 conditions, 9671 events. 6683/9671 cut-off events. For 2001/2001 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 45821 event pairs, 3481 based on Foata normal form. 180/8264 useless extension candidates. Maximal degree in co-relation 22435. Up to 3646 conditions per place. [2024-11-19 14:06:37,356 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 118 selfloop transitions, 8 changer transitions 0/132 dead transitions. [2024-11-19 14:06:37,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 132 transitions, 787 flow [2024-11-19 14:06:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:06:37,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:06:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-11-19 14:06:37,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5067567567567568 [2024-11-19 14:06:37,357 INFO L175 Difference]: Start difference. First operand has 71 places, 82 transitions, 389 flow. Second operand 4 states and 150 transitions. [2024-11-19 14:06:37,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 132 transitions, 787 flow [2024-11-19 14:06:37,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 132 transitions, 751 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 14:06:37,365 INFO L231 Difference]: Finished difference. Result has 72 places, 88 transitions, 424 flow [2024-11-19 14:06:37,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=72, PETRI_TRANSITIONS=88} [2024-11-19 14:06:37,365 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 2 predicate places. [2024-11-19 14:06:37,365 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 88 transitions, 424 flow [2024-11-19 14:06:37,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:37,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:37,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:37,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 14:06:37,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:37,567 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:37,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1136147884, now seen corresponding path program 1 times [2024-11-19 14:06:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:37,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086914067] [2024-11-19 14:06:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:37,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:37,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:06:37,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:37,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086914067] [2024-11-19 14:06:37,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086914067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:06:37,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142289357] [2024-11-19 14:06:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:06:37,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:37,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:06:37,762 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:06:37,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:06:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:06:37,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 14:06:37,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:06:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:06:38,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:06:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:06:38,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142289357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:06:38,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:06:38,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-11-19 14:06:38,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300310490] [2024-11-19 14:06:38,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:06:38,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 14:06:38,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:38,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 14:06:38,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-19 14:06:38,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-11-19 14:06:38,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 88 transitions, 424 flow. Second operand has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:38,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:38,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-11-19 14:06:38,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:39,500 INFO L124 PetriNetUnfolderBase]: 9464/14177 cut-off events. [2024-11-19 14:06:39,500 INFO L125 PetriNetUnfolderBase]: For 6116/6116 co-relation queries the response was YES. [2024-11-19 14:06:39,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34591 conditions, 14177 events. 9464/14177 cut-off events. For 6116/6116 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 75588 event pairs, 8206 based on Foata normal form. 385/12234 useless extension candidates. Maximal degree in co-relation 34572. Up to 9617 conditions per place. [2024-11-19 14:06:39,574 INFO L140 encePairwiseOnDemand]: 60/74 looper letters, 47 selfloop transitions, 33 changer transitions 161/247 dead transitions. [2024-11-19 14:06:39,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 247 transitions, 1533 flow [2024-11-19 14:06:39,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 14:06:39,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 14:06:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 360 transitions. [2024-11-19 14:06:39,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23166023166023167 [2024-11-19 14:06:39,576 INFO L175 Difference]: Start difference. First operand has 72 places, 88 transitions, 424 flow. Second operand 21 states and 360 transitions. [2024-11-19 14:06:39,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 247 transitions, 1533 flow [2024-11-19 14:06:39,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 247 transitions, 1519 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-19 14:06:39,588 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 496 flow [2024-11-19 14:06:39,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=496, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2024-11-19 14:06:39,588 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 27 predicate places. [2024-11-19 14:06:39,589 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 496 flow [2024-11-19 14:06:39,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.333333333333334) internal successors, (200), 15 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:39,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:06:39,589 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:39,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:06:39,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:06:39,790 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-19 14:06:39,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:06:39,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2104612733, now seen corresponding path program 2 times [2024-11-19 14:06:39,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:06:39,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042528199] [2024-11-19 14:06:39,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:06:39,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:06:39,824 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:06:39,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:06:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 14:06:39,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:06:39,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042528199] [2024-11-19 14:06:39,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042528199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:06:39,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:06:39,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:06:39,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572161016] [2024-11-19 14:06:39,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:06:39,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:06:39,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:06:39,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:06:39,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:06:39,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 74 [2024-11-19 14:06:39,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:39,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:06:39,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 74 [2024-11-19 14:06:39,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:06:40,505 INFO L124 PetriNetUnfolderBase]: 5262/7653 cut-off events. [2024-11-19 14:06:40,505 INFO L125 PetriNetUnfolderBase]: For 5342/5342 co-relation queries the response was YES. [2024-11-19 14:06:40,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19554 conditions, 7653 events. 5262/7653 cut-off events. For 5342/5342 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 35817 event pairs, 4517 based on Foata normal form. 252/6839 useless extension candidates. Maximal degree in co-relation 19528. Up to 7625 conditions per place. [2024-11-19 14:06:40,522 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2024-11-19 14:06:40,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 84 transitions, 642 flow [2024-11-19 14:06:40,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:06:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:06:40,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-11-19 14:06:40,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38288288288288286 [2024-11-19 14:06:40,523 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 496 flow. Second operand 3 states and 85 transitions. [2024-11-19 14:06:40,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 84 transitions, 642 flow [2024-11-19 14:06:40,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 84 transitions, 616 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-11-19 14:06:40,534 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-11-19 14:06:40,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-11-19 14:06:40,534 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 11 predicate places. [2024-11-19 14:06:40,534 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-11-19 14:06:40,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2024-11-19 14:06:40,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2024-11-19 14:06:40,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2024-11-19 14:06:40,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2024-11-19 14:06:40,540 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2024-11-19 14:06:40,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2024-11-19 14:06:40,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 14:06:40,541 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:06:40,550 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:06:40,550 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:06:40,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:06:40 BasicIcfg [2024-11-19 14:06:40,555 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:06:40,556 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:06:40,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:06:40,556 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:06:40,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:06:21" (3/4) ... [2024-11-19 14:06:40,558 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:06:40,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:06:40,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:06:40,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 14:06:40,568 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 186 nodes and edges [2024-11-19 14:06:40,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-19 14:06:40,569 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-19 14:06:40,570 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 14:06:40,672 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:06:40,673 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:06:40,673 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:06:40,673 INFO L158 Benchmark]: Toolchain (without parser) took 20644.12ms. Allocated memory was 140.5MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 103.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 265.9MB. Max. memory is 16.1GB. [2024-11-19 14:06:40,674 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 140.5MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:06:40,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.79ms. Allocated memory is still 140.5MB. Free memory was 103.2MB in the beginning and 88.8MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-19 14:06:40,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.50ms. Allocated memory is still 140.5MB. Free memory was 88.8MB in the beginning and 85.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:06:40,674 INFO L158 Benchmark]: Boogie Preprocessor took 83.10ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 82.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:06:40,674 INFO L158 Benchmark]: RCFGBuilder took 1407.43ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 82.6MB in the beginning and 93.8MB in the end (delta: -11.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-19 14:06:40,675 INFO L158 Benchmark]: TraceAbstraction took 18614.28ms. Allocated memory was 169.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 92.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-19 14:06:40,675 INFO L158 Benchmark]: Witness Printer took 117.08ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 14:06:40,676 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 140.5MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.79ms. Allocated memory is still 140.5MB. Free memory was 103.2MB in the beginning and 88.8MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.50ms. Allocated memory is still 140.5MB. Free memory was 88.8MB in the beginning and 85.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.10ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 82.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1407.43ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 82.6MB in the beginning and 93.8MB in the end (delta: -11.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18614.28ms. Allocated memory was 169.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 92.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 117.08ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 41 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.4s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 640 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 576 mSDsluCounter, 333 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 291 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2293 IncrementalHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 42 mSDtfsCounter, 2293 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=523occurred in iteration=6, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 404 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 1374 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1340 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 25 InterpolantComputations, 12 PerfectInterpolantSequences, 98/139 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:06:40,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE