./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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-more-min-le-max.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 dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:13:37,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:13:37,496 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:13:37,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:13:37,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:13:37,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:13:37,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:13:37,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:13:37,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:13:37,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:13:37,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:13:37,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:13:37,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:13:37,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:13:37,541 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:13:37,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:13:37,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:13:37,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:13:37,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:13:37,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:13:37,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:13:37,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:13:37,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:13:37,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:13:37,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:13:37,547 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:13:37,548 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:13:37,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:13:37,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:13:37,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:13:37,549 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:13:37,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:13:37,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:13:37,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:13:37,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:13:37,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:13:37,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:13:37,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:13:37,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:13:37,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:13:37,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:13:37,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:13:37,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:13:37,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:13:37,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-11-09 15:13:37,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:13:37,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:13:37,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:13:37,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:13:37,855 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:13:37,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-09 15:13:39,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:13:39,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:13:39,404 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-09 15:13:39,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4aa2614c/119951d2ae2c4e17971ac358f79ef25c/FLAG3c1010ad6 [2024-11-09 15:13:39,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4aa2614c/119951d2ae2c4e17971ac358f79ef25c [2024-11-09 15:13:39,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:13:39,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:13:39,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:13:39,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:13:39,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:13:39,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:13:39" (1/1) ... [2024-11-09 15:13:39,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f02ddd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:39, skipping insertion in model container [2024-11-09 15:13:39,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:13:39" (1/1) ... [2024-11-09 15:13:39,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:13:40,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:13:40,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:13:40,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:13:40,136 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:13:40,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40 WrapperNode [2024-11-09 15:13:40,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:13:40,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:13:40,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:13:40,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:13:40,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,186 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-11-09 15:13:40,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:13:40,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:13:40,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:13:40,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:13:40,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,201 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,223 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-09 15:13:40,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:13:40,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:13:40,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:13:40,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:13:40,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (1/1) ... [2024-11-09 15:13:40,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:13:40,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:40,281 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) [2024-11-09 15:13:40,285 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 [2024-11-09 15:13:40,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:13:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:13:40,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:13:40,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:13:40,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:13:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:13:40,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:13:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:13:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:13:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:13:40,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:13:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 15:13:40,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 15:13:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:13:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:13:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:13:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:13:40,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:13:40,334 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:13:40,436 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:13:40,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:13:40,670 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:13:40,670 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:13:40,866 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:13:40,866 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 15:13:40,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:13:40 BoogieIcfgContainer [2024-11-09 15:13:40,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:13:40,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:13:40,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:13:40,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:13:40,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:13:39" (1/3) ... [2024-11-09 15:13:40,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5366a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:13:40, skipping insertion in model container [2024-11-09 15:13:40,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:13:40" (2/3) ... [2024-11-09 15:13:40,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5366a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:13:40, skipping insertion in model container [2024-11-09 15:13:40,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:13:40" (3/3) ... [2024-11-09 15:13:40,883 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-11-09 15:13:40,900 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:13:40,900 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 15:13:40,901 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:13:40,978 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:13:41,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 41 transitions, 103 flow [2024-11-09 15:13:41,059 INFO L124 PetriNetUnfolderBase]: 3/38 cut-off events. [2024-11-09 15:13:41,060 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:13:41,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 3/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-09 15:13:41,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 41 transitions, 103 flow [2024-11-09 15:13:41,069 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 35 transitions, 82 flow [2024-11-09 15:13:41,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:13:41,087 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;@33293900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:13:41,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:13:41,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:13:41,092 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:13:41,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:13:41,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:41,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:13:41,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:41,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:41,105 INFO L85 PathProgramCache]: Analyzing trace with hash 416905, now seen corresponding path program 1 times [2024-11-09 15:13:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:41,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618470268] [2024-11-09 15:13:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:41,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:41,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:41,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618470268] [2024-11-09 15:13:41,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618470268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:41,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:41,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:41,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816706256] [2024-11-09 15:13:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:41,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:13:41,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:41,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:13:41,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:13:41,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-09 15:13:41,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 15:13:41,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:41,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-09 15:13:41,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:41,669 INFO L124 PetriNetUnfolderBase]: 215/410 cut-off events. [2024-11-09 15:13:41,670 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-09 15:13:41,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 410 events. 215/410 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1895 event pairs, 161 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 722. Up to 333 conditions per place. [2024-11-09 15:13:41,677 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 21 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2024-11-09 15:13:41,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 138 flow [2024-11-09 15:13:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:13:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:13:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-09 15:13:41,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5548780487804879 [2024-11-09 15:13:41,695 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 82 flow. Second operand 4 states and 91 transitions. [2024-11-09 15:13:41,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 138 flow [2024-11-09 15:13:41,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:13:41,705 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 105 flow [2024-11-09 15:13:41,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2024-11-09 15:13:41,711 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2024-11-09 15:13:41,712 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 105 flow [2024-11-09 15:13:41,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 15:13:41,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:41,713 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-09 15:13:41,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:13:41,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:41,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash -464474855, now seen corresponding path program 1 times [2024-11-09 15:13:41,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:41,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195485261] [2024-11-09 15:13:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:41,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:41,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:41,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195485261] [2024-11-09 15:13:41,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195485261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:41,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540978045] [2024-11-09 15:13:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:41,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:41,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:41,905 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) [2024-11-09 15:13:41,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:13:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:41,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:13:41,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:13:42,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540978045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:42,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:13:42,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 15:13:42,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636773021] [2024-11-09 15:13:42,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:42,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:13:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:13:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:13:42,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-09 15:13:42,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-11-09 15:13:42,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:42,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-09 15:13:42,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:42,232 INFO L124 PetriNetUnfolderBase]: 215/409 cut-off events. [2024-11-09 15:13:42,232 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:13:42,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 409 events. 215/409 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1882 event pairs, 161 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 772. Up to 328 conditions per place. [2024-11-09 15:13:42,239 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 17 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2024-11-09 15:13:42,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 149 flow [2024-11-09 15:13:42,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:13:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:13:42,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-11-09 15:13:42,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.491869918699187 [2024-11-09 15:13:42,245 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 105 flow. Second operand 6 states and 121 transitions. [2024-11-09 15:13:42,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 149 flow [2024-11-09 15:13:42,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:42,248 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 112 flow [2024-11-09 15:13:42,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2024-11-09 15:13:42,250 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2024-11-09 15:13:42,250 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 112 flow [2024-11-09 15:13:42,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-11-09 15:13:42,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:42,251 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:13:42,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:13:42,456 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 [2024-11-09 15:13:42,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:42,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1513818204, now seen corresponding path program 1 times [2024-11-09 15:13:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099643132] [2024-11-09 15:13:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:42,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099643132] [2024-11-09 15:13:42,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099643132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:42,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175520551] [2024-11-09 15:13:42,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:42,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:42,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:42,580 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) [2024-11-09 15:13:42,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:13:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:42,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:13:42,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:42,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175520551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:42,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:42,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 15:13:42,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106728626] [2024-11-09 15:13:42,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:42,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:13:42,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:42,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:13:42,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:13:42,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-09 15:13:42,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 112 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-11-09 15:13:42,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:42,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-09 15:13:42,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:42,893 INFO L124 PetriNetUnfolderBase]: 218/421 cut-off events. [2024-11-09 15:13:42,894 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 15:13:42,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 421 events. 218/421 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1980 event pairs, 161 based on Foata normal form. 3/374 useless extension candidates. Maximal degree in co-relation 773. Up to 335 conditions per place. [2024-11-09 15:13:42,898 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 20 selfloop transitions, 13 changer transitions 0/46 dead transitions. [2024-11-09 15:13:42,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 232 flow [2024-11-09 15:13:42,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:13:42,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:13:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2024-11-09 15:13:42,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47804878048780486 [2024-11-09 15:13:42,903 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 112 flow. Second operand 10 states and 196 transitions. [2024-11-09 15:13:42,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 232 flow [2024-11-09 15:13:42,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 186 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-09 15:13:42,905 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 164 flow [2024-11-09 15:13:42,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=164, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-11-09 15:13:42,907 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2024-11-09 15:13:42,907 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 164 flow [2024-11-09 15:13:42,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-11-09 15:13:42,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:42,908 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:42,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 15:13:43,111 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 [2024-11-09 15:13:43,118 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:43,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1362020055, now seen corresponding path program 1 times [2024-11-09 15:13:43,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181383518] [2024-11-09 15:13:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:43,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181383518] [2024-11-09 15:13:43,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181383518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:43,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:43,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:13:43,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457699241] [2024-11-09 15:13:43,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:43,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:13:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:13:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:13:43,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-09 15:13:43,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 15:13:43,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:43,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-09 15:13:43,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:43,364 INFO L124 PetriNetUnfolderBase]: 544/978 cut-off events. [2024-11-09 15:13:43,364 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-09 15:13:43,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 978 events. 544/978 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5016 event pairs, 219 based on Foata normal form. 26/930 useless extension candidates. Maximal degree in co-relation 1908. Up to 596 conditions per place. [2024-11-09 15:13:43,372 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 55 selfloop transitions, 4 changer transitions 0/70 dead transitions. [2024-11-09 15:13:43,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 338 flow [2024-11-09 15:13:43,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:13:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:13:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-11-09 15:13:43,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6646341463414634 [2024-11-09 15:13:43,376 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 164 flow. Second operand 4 states and 109 transitions. [2024-11-09 15:13:43,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 338 flow [2024-11-09 15:13:43,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 327 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-09 15:13:43,381 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 182 flow [2024-11-09 15:13:43,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-11-09 15:13:43,382 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2024-11-09 15:13:43,383 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 182 flow [2024-11-09 15:13:43,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-09 15:13:43,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:43,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:43,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:13:43,384 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:43,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1072465311, now seen corresponding path program 1 times [2024-11-09 15:13:43,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205402116] [2024-11-09 15:13:43,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:43,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:43,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205402116] [2024-11-09 15:13:43,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205402116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:43,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:43,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:13:43,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077586669] [2024-11-09 15:13:43,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:43,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:13:43,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:43,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:13:43,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:13:43,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-09 15:13:43,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-09 15:13:43,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:43,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-09 15:13:43,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:43,655 INFO L124 PetriNetUnfolderBase]: 868/1459 cut-off events. [2024-11-09 15:13:43,656 INFO L125 PetriNetUnfolderBase]: For 465/640 co-relation queries the response was YES. [2024-11-09 15:13:43,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3340 conditions, 1459 events. 868/1459 cut-off events. For 465/640 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7518 event pairs, 456 based on Foata normal form. 97/1469 useless extension candidates. Maximal degree in co-relation 3304. Up to 915 conditions per place. [2024-11-09 15:13:43,668 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 59 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-09 15:13:43,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 75 transitions, 392 flow [2024-11-09 15:13:43,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:13:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:13:43,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-09 15:13:43,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-11-09 15:13:43,671 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 182 flow. Second operand 4 states and 107 transitions. [2024-11-09 15:13:43,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 75 transitions, 392 flow [2024-11-09 15:13:43,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:43,676 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 208 flow [2024-11-09 15:13:43,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-11-09 15:13:43,677 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-11-09 15:13:43,678 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 208 flow [2024-11-09 15:13:43,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-11-09 15:13:43,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:43,679 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:43,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:13:43,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:43,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1902183412, now seen corresponding path program 1 times [2024-11-09 15:13:43,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414732983] [2024-11-09 15:13:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:13:43,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:43,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414732983] [2024-11-09 15:13:43,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414732983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:13:43,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:13:43,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:13:43,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72683353] [2024-11-09 15:13:43,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:13:43,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:13:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:43,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:13:43,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:13:43,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 41 [2024-11-09 15:13:43,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 208 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) [2024-11-09 15:13:43,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:43,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 41 [2024-11-09 15:13:43,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:43,885 INFO L124 PetriNetUnfolderBase]: 543/964 cut-off events. [2024-11-09 15:13:43,885 INFO L125 PetriNetUnfolderBase]: For 452/596 co-relation queries the response was YES. [2024-11-09 15:13:43,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 964 events. 543/964 cut-off events. For 452/596 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4832 event pairs, 387 based on Foata normal form. 50/929 useless extension candidates. Maximal degree in co-relation 2372. Up to 793 conditions per place. [2024-11-09 15:13:43,893 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 33 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-11-09 15:13:43,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 275 flow [2024-11-09 15:13:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:13:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:13:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-09 15:13:43,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6260162601626016 [2024-11-09 15:13:43,895 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 208 flow. Second operand 3 states and 77 transitions. [2024-11-09 15:13:43,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 275 flow [2024-11-09 15:13:43,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:13:43,899 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 206 flow [2024-11-09 15:13:43,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2024-11-09 15:13:43,900 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-11-09 15:13:43,901 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 206 flow [2024-11-09 15:13:43,901 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) [2024-11-09 15:13:43,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:43,902 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 15:13:43,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:13:43,902 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:43,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:43,903 INFO L85 PathProgramCache]: Analyzing trace with hash -305903052, now seen corresponding path program 2 times [2024-11-09 15:13:43,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:43,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498347719] [2024-11-09 15:13:43,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:43,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:44,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:44,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498347719] [2024-11-09 15:13:44,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498347719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:44,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958142821] [2024-11-09 15:13:44,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:13:44,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:44,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:44,089 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) [2024-11-09 15:13:44,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:13:44,150 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:13:44,150 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:13:44,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:13:44,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:13:44,198 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:44,231 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:13:44,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958142821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:44,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:44,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-09 15:13:44,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306269914] [2024-11-09 15:13:44,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:44,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 15:13:44,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:44,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 15:13:44,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 15:13:44,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-11-09 15:13:44,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 206 flow. Second operand has 14 states, 14 states have (on average 17.142857142857142) internal successors, (240), 14 states have internal predecessors, (240), 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) [2024-11-09 15:13:44,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:44,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-11-09 15:13:44,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:44,552 INFO L124 PetriNetUnfolderBase]: 544/967 cut-off events. [2024-11-09 15:13:44,552 INFO L125 PetriNetUnfolderBase]: For 404/548 co-relation queries the response was YES. [2024-11-09 15:13:44,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 967 events. 544/967 cut-off events. For 404/548 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4867 event pairs, 387 based on Foata normal form. 51/932 useless extension candidates. Maximal degree in co-relation 2312. Up to 785 conditions per place. [2024-11-09 15:13:44,560 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 20 selfloop transitions, 18 changer transitions 0/53 dead transitions. [2024-11-09 15:13:44,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 53 transitions, 288 flow [2024-11-09 15:13:44,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:13:44,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:13:44,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 260 transitions. [2024-11-09 15:13:44,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4529616724738676 [2024-11-09 15:13:44,562 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 206 flow. Second operand 14 states and 260 transitions. [2024-11-09 15:13:44,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 53 transitions, 288 flow [2024-11-09 15:13:44,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 53 transitions, 272 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-09 15:13:44,566 INFO L231 Difference]: Finished difference. Result has 67 places, 53 transitions, 232 flow [2024-11-09 15:13:44,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=232, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2024-11-09 15:13:44,567 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2024-11-09 15:13:44,567 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 232 flow [2024-11-09 15:13:44,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.142857142857142) internal successors, (240), 14 states have internal predecessors, (240), 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) [2024-11-09 15:13:44,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:44,567 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:44,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:13:44,768 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 [2024-11-09 15:13:44,768 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:44,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1458165916, now seen corresponding path program 1 times [2024-11-09 15:13:44,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:44,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244213653] [2024-11-09 15:13:44,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:44,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:13:44,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:44,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244213653] [2024-11-09 15:13:44,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244213653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:44,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645104647] [2024-11-09 15:13:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:44,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:44,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:44,839 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) [2024-11-09 15:13:44,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:13:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:44,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 15:13:44,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:45,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:45,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645104647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:45,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-09 15:13:45,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988440083] [2024-11-09 15:13:45,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:45,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:13:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:13:45,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-09 15:13:45,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-09 15:13:45,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 232 flow. Second operand has 19 states, 19 states have (on average 14.0) internal successors, (266), 19 states have internal predecessors, (266), 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) [2024-11-09 15:13:45,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:45,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-09 15:13:45,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:46,089 INFO L124 PetriNetUnfolderBase]: 1524/2565 cut-off events. [2024-11-09 15:13:46,089 INFO L125 PetriNetUnfolderBase]: For 909/1122 co-relation queries the response was YES. [2024-11-09 15:13:46,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6348 conditions, 2565 events. 1524/2565 cut-off events. For 909/1122 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 14805 event pairs, 256 based on Foata normal form. 152/2612 useless extension candidates. Maximal degree in co-relation 3883. Up to 392 conditions per place. [2024-11-09 15:13:46,106 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 116 selfloop transitions, 25 changer transitions 8/159 dead transitions. [2024-11-09 15:13:46,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 159 transitions, 866 flow [2024-11-09 15:13:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:13:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:13:46,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 292 transitions. [2024-11-09 15:13:46,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5087108013937283 [2024-11-09 15:13:46,109 INFO L175 Difference]: Start difference. First operand has 67 places, 53 transitions, 232 flow. Second operand 14 states and 292 transitions. [2024-11-09 15:13:46,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 159 transitions, 866 flow [2024-11-09 15:13:46,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 159 transitions, 798 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-09 15:13:46,114 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 236 flow [2024-11-09 15:13:46,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=236, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2024-11-09 15:13:46,115 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-11-09 15:13:46,115 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 236 flow [2024-11-09 15:13:46,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.0) internal successors, (266), 19 states have internal predecessors, (266), 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) [2024-11-09 15:13:46,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:46,116 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:46,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:13:46,319 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 [2024-11-09 15:13:46,320 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:46,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash -778563665, now seen corresponding path program 1 times [2024-11-09 15:13:46,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:46,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237823101] [2024-11-09 15:13:46,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:46,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:13:46,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:46,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237823101] [2024-11-09 15:13:46,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237823101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:46,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025156165] [2024-11-09 15:13:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:46,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:46,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:46,391 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) [2024-11-09 15:13:46,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:13:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:46,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 15:13:46,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:46,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:13:46,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025156165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:46,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:46,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-09 15:13:46,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698138382] [2024-11-09 15:13:46,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:46,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:13:46,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:46,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:13:46,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-09 15:13:46,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-09 15:13:46,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 236 flow. Second operand has 19 states, 19 states have (on average 14.210526315789474) internal successors, (270), 19 states have internal predecessors, (270), 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) [2024-11-09 15:13:46,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:46,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-09 15:13:46,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:47,551 INFO L124 PetriNetUnfolderBase]: 1550/2572 cut-off events. [2024-11-09 15:13:47,551 INFO L125 PetriNetUnfolderBase]: For 2152/2214 co-relation queries the response was YES. [2024-11-09 15:13:47,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6997 conditions, 2572 events. 1550/2572 cut-off events. For 2152/2214 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14575 event pairs, 280 based on Foata normal form. 78/2553 useless extension candidates. Maximal degree in co-relation 3955. Up to 454 conditions per place. [2024-11-09 15:13:47,587 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 76 selfloop transitions, 19 changer transitions 49/153 dead transitions. [2024-11-09 15:13:47,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 153 transitions, 905 flow [2024-11-09 15:13:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 15:13:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 15:13:47,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 285 transitions. [2024-11-09 15:13:47,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4965156794425087 [2024-11-09 15:13:47,590 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 236 flow. Second operand 14 states and 285 transitions. [2024-11-09 15:13:47,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 153 transitions, 905 flow [2024-11-09 15:13:47,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 153 transitions, 812 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-09 15:13:47,597 INFO L231 Difference]: Finished difference. Result has 74 places, 50 transitions, 208 flow [2024-11-09 15:13:47,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=208, PETRI_PLACES=74, PETRI_TRANSITIONS=50} [2024-11-09 15:13:47,598 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 32 predicate places. [2024-11-09 15:13:47,598 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 50 transitions, 208 flow [2024-11-09 15:13:47,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.210526315789474) internal successors, (270), 19 states have internal predecessors, (270), 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) [2024-11-09 15:13:47,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:47,599 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:47,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:13:47,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:47,800 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:47,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1035686181, now seen corresponding path program 1 times [2024-11-09 15:13:47,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:47,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414011739] [2024-11-09 15:13:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:13:47,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414011739] [2024-11-09 15:13:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414011739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131786420] [2024-11-09 15:13:47,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:47,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:47,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:47,886 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) [2024-11-09 15:13:47,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:13:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:47,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:13:47,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:13:47,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:13:48,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131786420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:48,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:48,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:13:48,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841553584] [2024-11-09 15:13:48,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:48,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:13:48,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:48,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:13:48,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:13:48,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-09 15:13:48,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 50 transitions, 208 flow. Second operand has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 12 states have internal predecessors, (203), 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) [2024-11-09 15:13:48,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:48,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-09 15:13:48,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:48,534 INFO L124 PetriNetUnfolderBase]: 1813/3214 cut-off events. [2024-11-09 15:13:48,534 INFO L125 PetriNetUnfolderBase]: For 2691/2778 co-relation queries the response was YES. [2024-11-09 15:13:48,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8654 conditions, 3214 events. 1813/3214 cut-off events. For 2691/2778 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 18813 event pairs, 387 based on Foata normal form. 132/3288 useless extension candidates. Maximal degree in co-relation 7581. Up to 1131 conditions per place. [2024-11-09 15:13:48,562 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 136 selfloop transitions, 13 changer transitions 0/159 dead transitions. [2024-11-09 15:13:48,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 159 transitions, 940 flow [2024-11-09 15:13:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:13:48,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:13:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 271 transitions. [2024-11-09 15:13:48,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6609756097560976 [2024-11-09 15:13:48,565 INFO L175 Difference]: Start difference. First operand has 74 places, 50 transitions, 208 flow. Second operand 10 states and 271 transitions. [2024-11-09 15:13:48,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 159 transitions, 940 flow [2024-11-09 15:13:48,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 159 transitions, 811 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-11-09 15:13:48,572 INFO L231 Difference]: Finished difference. Result has 69 places, 59 transitions, 237 flow [2024-11-09 15:13:48,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=69, PETRI_TRANSITIONS=59} [2024-11-09 15:13:48,574 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2024-11-09 15:13:48,574 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 237 flow [2024-11-09 15:13:48,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 12 states have internal predecessors, (203), 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) [2024-11-09 15:13:48,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:48,576 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:48,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:13:48,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:48,777 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:48,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:48,778 INFO L85 PathProgramCache]: Analyzing trace with hash -425650053, now seen corresponding path program 1 times [2024-11-09 15:13:48,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:48,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242801971] [2024-11-09 15:13:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:48,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:13:48,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:48,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242801971] [2024-11-09 15:13:48,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242801971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:48,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893606909] [2024-11-09 15:13:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:48,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:48,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:48,847 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) [2024-11-09 15:13:48,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:13:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:48,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:13:48,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:13:48,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 15:13:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893606909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:48,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:48,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:13:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755512454] [2024-11-09 15:13:48,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:48,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:13:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:48,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:13:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:13:49,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-09 15:13:49,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 237 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-11-09 15:13:49,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:49,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-09 15:13:49,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:49,762 INFO L124 PetriNetUnfolderBase]: 3703/6220 cut-off events. [2024-11-09 15:13:49,763 INFO L125 PetriNetUnfolderBase]: For 6976/7303 co-relation queries the response was YES. [2024-11-09 15:13:49,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16575 conditions, 6220 events. 3703/6220 cut-off events. For 6976/7303 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 38293 event pairs, 1035 based on Foata normal form. 246/6345 useless extension candidates. Maximal degree in co-relation 13263. Up to 2157 conditions per place. [2024-11-09 15:13:49,803 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 182 selfloop transitions, 13 changer transitions 0/208 dead transitions. [2024-11-09 15:13:49,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 208 transitions, 1378 flow [2024-11-09 15:13:49,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:13:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:13:49,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 263 transitions. [2024-11-09 15:13:49,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6414634146341464 [2024-11-09 15:13:49,805 INFO L175 Difference]: Start difference. First operand has 69 places, 59 transitions, 237 flow. Second operand 10 states and 263 transitions. [2024-11-09 15:13:49,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 208 transitions, 1378 flow [2024-11-09 15:13:49,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 208 transitions, 1295 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-09 15:13:49,813 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 309 flow [2024-11-09 15:13:49,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=309, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-11-09 15:13:49,814 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 37 predicate places. [2024-11-09 15:13:49,814 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 309 flow [2024-11-09 15:13:49,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-11-09 15:13:49,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:49,815 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:13:49,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:13:50,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:50,016 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:50,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash 474449896, now seen corresponding path program 2 times [2024-11-09 15:13:50,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:50,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765497029] [2024-11-09 15:13:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:50,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 15:13:50,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:50,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765497029] [2024-11-09 15:13:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765497029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:50,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417879475] [2024-11-09 15:13:50,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:13:50,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:50,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:50,182 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:13:50,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:13:50,247 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:13:50,247 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:13:50,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:13:50,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 15:13:50,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 15:13:50,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417879475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:50,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:50,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-09 15:13:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111208633] [2024-11-09 15:13:50,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 15:13:50,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:50,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 15:13:50,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-09 15:13:50,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-09 15:13:50,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 309 flow. Second operand has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-11-09 15:13:50,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:50,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-09 15:13:50,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:52,002 INFO L124 PetriNetUnfolderBase]: 8620/13681 cut-off events. [2024-11-09 15:13:52,002 INFO L125 PetriNetUnfolderBase]: For 18300/18756 co-relation queries the response was YES. [2024-11-09 15:13:52,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39731 conditions, 13681 events. 8620/13681 cut-off events. For 18300/18756 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 90153 event pairs, 1054 based on Foata normal form. 160/13668 useless extension candidates. Maximal degree in co-relation 31527. Up to 2816 conditions per place. [2024-11-09 15:13:52,075 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 140 selfloop transitions, 38 changer transitions 45/235 dead transitions. [2024-11-09 15:13:52,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 235 transitions, 1587 flow [2024-11-09 15:13:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 15:13:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 15:13:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 320 transitions. [2024-11-09 15:13:52,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-09 15:13:52,079 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 309 flow. Second operand 16 states and 320 transitions. [2024-11-09 15:13:52,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 235 transitions, 1587 flow [2024-11-09 15:13:52,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 235 transitions, 1484 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-11-09 15:13:52,210 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 447 flow [2024-11-09 15:13:52,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=447, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2024-11-09 15:13:52,211 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 47 predicate places. [2024-11-09 15:13:52,212 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 447 flow [2024-11-09 15:13:52,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-11-09 15:13:52,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:13:52,213 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:52,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:13:52,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 15:13:52,414 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 15:13:52,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:13:52,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1954596347, now seen corresponding path program 2 times [2024-11-09 15:13:52,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:13:52,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302501596] [2024-11-09 15:13:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:13:52,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:13:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:13:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 15:13:52,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:13:52,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302501596] [2024-11-09 15:13:52,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302501596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:13:52,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382343775] [2024-11-09 15:13:52,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:13:52,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:13:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:13:52,634 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:13:52,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 15:13:52,712 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:13:52,712 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:13:52,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:13:52,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:13:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 15:13:52,786 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:13:52,856 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 15:13:52,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382343775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:13:52,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:13:52,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-09 15:13:52,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018322510] [2024-11-09 15:13:52,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:13:52,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 15:13:52,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:13:52,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 15:13:52,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-09 15:13:52,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-09 15:13:52,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 447 flow. Second operand has 13 states, 13 states have (on average 14.615384615384615) internal successors, (190), 13 states have internal predecessors, (190), 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) [2024-11-09 15:13:52,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:13:52,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-09 15:13:52,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:13:54,085 INFO L124 PetriNetUnfolderBase]: 7629/12097 cut-off events. [2024-11-09 15:13:54,085 INFO L125 PetriNetUnfolderBase]: For 27107/27854 co-relation queries the response was YES. [2024-11-09 15:13:54,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36410 conditions, 12097 events. 7629/12097 cut-off events. For 27107/27854 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 79478 event pairs, 946 based on Foata normal form. 539/12541 useless extension candidates. Maximal degree in co-relation 26773. Up to 2882 conditions per place. [2024-11-09 15:13:54,114 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 0 selfloop transitions, 0 changer transitions 224/224 dead transitions. [2024-11-09 15:13:54,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 224 transitions, 1672 flow [2024-11-09 15:13:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 15:13:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 15:13:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 308 transitions. [2024-11-09 15:13:54,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4695121951219512 [2024-11-09 15:13:54,203 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 447 flow. Second operand 16 states and 308 transitions. [2024-11-09 15:13:54,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 224 transitions, 1672 flow [2024-11-09 15:13:54,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 224 transitions, 1640 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-11-09 15:13:54,244 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2024-11-09 15:13:54,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2024-11-09 15:13:54,245 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 49 predicate places. [2024-11-09 15:13:54,245 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2024-11-09 15:13:54,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.615384615384615) internal successors, (190), 13 states have internal predecessors, (190), 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) [2024-11-09 15:13:54,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-09 15:13:54,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-09 15:13:54,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-09 15:13:54,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-09 15:13:54,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-09 15:13:54,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-09 15:13:54,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-09 15:13:54,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-09 15:13:54,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-09 15:13:54,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-09 15:13:54,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-09 15:13:54,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-09 15:13:54,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-09 15:13:54,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 15:13:54,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 15:13:54,455 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:13:54,461 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:13:54,461 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:13:54,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:13:54 BasicIcfg [2024-11-09 15:13:54,467 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:13:54,467 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:13:54,468 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:13:54,468 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:13:54,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:13:40" (3/4) ... [2024-11-09 15:13:54,471 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:13:54,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:13:54,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:13:54,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 15:13:54,482 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2024-11-09 15:13:54,482 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-09 15:13:54,483 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 15:13:54,483 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:13:54,574 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:13:54,574 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:13:54,574 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:13:54,575 INFO L158 Benchmark]: Toolchain (without parser) took 14768.75ms. Allocated memory was 157.3MB in the beginning and 679.5MB in the end (delta: 522.2MB). Free memory was 107.9MB in the beginning and 447.7MB in the end (delta: -339.9MB). Peak memory consumption was 182.9MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,575 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 157.3MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:13:54,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.52ms. Allocated memory is still 157.3MB. Free memory was 107.9MB in the beginning and 93.8MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.78ms. Allocated memory is still 157.3MB. Free memory was 93.8MB in the beginning and 92.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,575 INFO L158 Benchmark]: Boogie Preprocessor took 57.79ms. Allocated memory is still 157.3MB. Free memory was 92.0MB in the beginning and 89.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,576 INFO L158 Benchmark]: RCFGBuilder took 621.15ms. Allocated memory is still 157.3MB. Free memory was 89.6MB in the beginning and 52.8MB in the end (delta: 36.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,576 INFO L158 Benchmark]: TraceAbstraction took 13594.13ms. Allocated memory was 157.3MB in the beginning and 679.5MB in the end (delta: 522.2MB). Free memory was 52.2MB in the beginning and 453.4MB in the end (delta: -401.3MB). Peak memory consumption was 365.4MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,576 INFO L158 Benchmark]: Witness Printer took 106.79ms. Allocated memory is still 679.5MB. Free memory was 453.4MB in the beginning and 447.7MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:13:54,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 157.3MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.52ms. Allocated memory is still 157.3MB. Free memory was 107.9MB in the beginning and 93.8MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.78ms. Allocated memory is still 157.3MB. Free memory was 93.8MB in the beginning and 92.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.79ms. Allocated memory is still 157.3MB. Free memory was 92.0MB in the beginning and 89.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 621.15ms. Allocated memory is still 157.3MB. Free memory was 89.6MB in the beginning and 52.8MB in the end (delta: 36.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13594.13ms. Allocated memory was 157.3MB in the beginning and 679.5MB in the end (delta: 522.2MB). Free memory was 52.2MB in the beginning and 453.4MB in the end (delta: -401.3MB). Peak memory consumption was 365.4MB. Max. memory is 16.1GB. * Witness Printer took 106.79ms. Allocated memory is still 679.5MB. Free memory was 453.4MB in the beginning and 447.7MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: 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, 64 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.4s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1189 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1116 mSDsluCounter, 899 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 877 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4598 IncrementalHoareTripleChecker+Invalid, 4644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 22 mSDtfsCounter, 4598 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 457 GetRequests, 277 SyntacticMatches, 7 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447occurred in iteration=12, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 388 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 529 ConstructedInterpolants, 0 QuantifiedInterpolants, 1581 SizeOfPredicates, 29 NumberOfNonLiveVariables, 895 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 322/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:13:54,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE