./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-nzb-file-symm.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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:22:30,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:22:30,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:22:30,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:22:30,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:22:30,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:22:30,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:22:30,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:22:30,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:22:30,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:22:30,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:22:30,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:22:30,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:22:30,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:22:30,362 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:22:30,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:22:30,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:22:30,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:22:30,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:22:30,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:22:30,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:22:30,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:22:30,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:22:30,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:22:30,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:22:30,367 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:22:30,368 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:22:30,368 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:22:30,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:22:30,368 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:22:30,368 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:22:30,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:22:30,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:22:30,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:22:30,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:22:30,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:22:30,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:22:30,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:22:30,370 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:22:30,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:22:30,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:22:30,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:22:30,371 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:22:30,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:22:30,372 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2024-11-10 22:22:30,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:22:30,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:22:30,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:22:30,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:22:30,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:22:30,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-11-10 22:22:31,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:22:31,951 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:22:31,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-11-10 22:22:31,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a704e6a/028d9ad700e8496d8cbb1600d75cfc14/FLAG56ae13be3 [2024-11-10 22:22:31,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a704e6a/028d9ad700e8496d8cbb1600d75cfc14 [2024-11-10 22:22:31,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:22:31,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:22:31,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:22:31,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:22:31,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:22:31,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:31" (1/1) ... [2024-11-10 22:22:31,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d67322b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:31, skipping insertion in model container [2024-11-10 22:22:31,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:31" (1/1) ... [2024-11-10 22:22:32,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:22:32,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:22:32,204 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:22:32,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:22:32,249 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:22:32,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32 WrapperNode [2024-11-10 22:22:32,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:22:32,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:22:32,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:22:32,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:22:32,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,299 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 495 [2024-11-10 22:22:32,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:22:32,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:22:32,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:22:32,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:22:32,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,329 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-10 22:22:32,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:22:32,355 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:22:32,355 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:22:32,355 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:22:32,356 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (1/1) ... [2024-11-10 22:22:32,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:22:32,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:32,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:22:32,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:22:32,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:22:32,422 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:22:32,422 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:22:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:22:32,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:22:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:22:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:22:32,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:22:32,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:22:32,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:22:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:22:32,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:22:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:22:32,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:22:32,427 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:22:32,532 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:22:32,534 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:22:33,110 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:22:33,111 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:22:33,477 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:22:33,478 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:22:33,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:33 BoogieIcfgContainer [2024-11-10 22:22:33,479 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:22:33,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:22:33,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:22:33,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:22:33,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:22:31" (1/3) ... [2024-11-10 22:22:33,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417e8f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:33, skipping insertion in model container [2024-11-10 22:22:33,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:32" (2/3) ... [2024-11-10 22:22:33,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417e8f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:33, skipping insertion in model container [2024-11-10 22:22:33,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:33" (3/3) ... [2024-11-10 22:22:33,486 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2024-11-10 22:22:33,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:22:33,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-10 22:22:33,501 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:22:33,578 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:22:33,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 175 transitions, 364 flow [2024-11-10 22:22:33,654 INFO L124 PetriNetUnfolderBase]: 28/173 cut-off events. [2024-11-10 22:22:33,654 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:22:33,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 173 events. 28/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 856 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2024-11-10 22:22:33,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 175 transitions, 364 flow [2024-11-10 22:22:33,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 172 transitions, 356 flow [2024-11-10 22:22:33,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:22:33,683 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;@277eae8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:22:33,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-11-10 22:22:33,687 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:22:33,687 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:22:33,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:22:33,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:33,688 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:22:33,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:33,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:33,694 INFO L85 PathProgramCache]: Analyzing trace with hash 42364607, now seen corresponding path program 1 times [2024-11-10 22:22:33,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:33,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53701738] [2024-11-10 22:22:33,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:33,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:33,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:33,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53701738] [2024-11-10 22:22:33,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53701738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:33,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:33,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:33,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121744745] [2024-11-10 22:22:33,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:33,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:33,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:33,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:33,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:22:33,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 172 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:33,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:33,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:22:33,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:34,610 INFO L124 PetriNetUnfolderBase]: 2888/6513 cut-off events. [2024-11-10 22:22:34,611 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-10 22:22:34,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10770 conditions, 6513 events. 2888/6513 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 58759 event pairs, 1812 based on Foata normal form. 6/5189 useless extension candidates. Maximal degree in co-relation 10584. Up to 4172 conditions per place. [2024-11-10 22:22:34,646 INFO L140 encePairwiseOnDemand]: 161/175 looper letters, 72 selfloop transitions, 6 changer transitions 2/164 dead transitions. [2024-11-10 22:22:34,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 164 transitions, 498 flow [2024-11-10 22:22:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2024-11-10 22:22:34,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2024-11-10 22:22:34,660 INFO L175 Difference]: Start difference. First operand has 151 places, 172 transitions, 356 flow. Second operand 4 states and 435 transitions. [2024-11-10 22:22:34,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 164 transitions, 498 flow [2024-11-10 22:22:34,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 164 transitions, 490 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:34,667 INFO L231 Difference]: Finished difference. Result has 146 places, 162 transitions, 339 flow [2024-11-10 22:22:34,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=339, PETRI_PLACES=146, PETRI_TRANSITIONS=162} [2024-11-10 22:22:34,671 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, -5 predicate places. [2024-11-10 22:22:34,671 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 162 transitions, 339 flow [2024-11-10 22:22:34,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:34,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:34,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 22:22:34,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:22:34,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:34,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1313304080, now seen corresponding path program 1 times [2024-11-10 22:22:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:34,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399003177] [2024-11-10 22:22:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:34,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:34,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399003177] [2024-11-10 22:22:34,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399003177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:34,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:34,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:34,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448314852] [2024-11-10 22:22:34,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:34,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:34,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:34,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:34,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:34,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:22:34,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 162 transitions, 339 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:34,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:34,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:22:34,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:35,256 INFO L124 PetriNetUnfolderBase]: 2890/6523 cut-off events. [2024-11-10 22:22:35,256 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-10 22:22:35,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10745 conditions, 6523 events. 2890/6523 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 58827 event pairs, 1812 based on Foata normal form. 2/5197 useless extension candidates. Maximal degree in co-relation 10689. Up to 4180 conditions per place. [2024-11-10 22:22:35,284 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 77 selfloop transitions, 7 changer transitions 0/168 dead transitions. [2024-11-10 22:22:35,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 168 transitions, 529 flow [2024-11-10 22:22:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:35,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2024-11-10 22:22:35,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.62 [2024-11-10 22:22:35,289 INFO L175 Difference]: Start difference. First operand has 146 places, 162 transitions, 339 flow. Second operand 4 states and 434 transitions. [2024-11-10 22:22:35,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 168 transitions, 529 flow [2024-11-10 22:22:35,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 507 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:35,295 INFO L231 Difference]: Finished difference. Result has 147 places, 168 transitions, 383 flow [2024-11-10 22:22:35,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=147, PETRI_TRANSITIONS=168} [2024-11-10 22:22:35,296 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, -4 predicate places. [2024-11-10 22:22:35,296 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 168 transitions, 383 flow [2024-11-10 22:22:35,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:35,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:35,296 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:22:35,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:22:35,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:35,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash -466694210, now seen corresponding path program 1 times [2024-11-10 22:22:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:35,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888892395] [2024-11-10 22:22:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:35,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:35,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888892395] [2024-11-10 22:22:35,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888892395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:35,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065837578] [2024-11-10 22:22:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:35,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:35,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:35,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:22:35,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:22:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:35,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:22:35,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:35,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065837578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:35,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:35,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-10 22:22:35,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029324681] [2024-11-10 22:22:35,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:35,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:22:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:35,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:22:35,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:22:35,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:22:35,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 168 transitions, 383 flow. Second operand has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:35,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:35,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:22:35,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:36,337 INFO L124 PetriNetUnfolderBase]: 2896/6559 cut-off events. [2024-11-10 22:22:36,337 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-10 22:22:36,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10833 conditions, 6559 events. 2896/6559 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 59264 event pairs, 1812 based on Foata normal form. 0/5229 useless extension candidates. Maximal degree in co-relation 10704. Up to 4183 conditions per place. [2024-11-10 22:22:36,378 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 77 selfloop transitions, 25 changer transitions 0/186 dead transitions. [2024-11-10 22:22:36,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 186 transitions, 665 flow [2024-11-10 22:22:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:22:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:22:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 978 transitions. [2024-11-10 22:22:36,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5588571428571428 [2024-11-10 22:22:36,381 INFO L175 Difference]: Start difference. First operand has 147 places, 168 transitions, 383 flow. Second operand 10 states and 978 transitions. [2024-11-10 22:22:36,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 186 transitions, 665 flow [2024-11-10 22:22:36,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 186 transitions, 665 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:22:36,385 INFO L231 Difference]: Finished difference. Result has 159 places, 186 transitions, 545 flow [2024-11-10 22:22:36,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=545, PETRI_PLACES=159, PETRI_TRANSITIONS=186} [2024-11-10 22:22:36,387 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 8 predicate places. [2024-11-10 22:22:36,387 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 186 transitions, 545 flow [2024-11-10 22:22:36,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:36,389 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:36,389 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:36,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:36,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:36,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:36,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash -264045942, now seen corresponding path program 1 times [2024-11-10 22:22:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:36,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591278044] [2024-11-10 22:22:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:36,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:36,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591278044] [2024-11-10 22:22:36,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591278044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:36,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:36,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:36,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338388971] [2024-11-10 22:22:36,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:36,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:36,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:36,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:36,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:22:36,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 186 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 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) [2024-11-10 22:22:36,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:36,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:22:36,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:37,308 INFO L124 PetriNetUnfolderBase]: 5153/10851 cut-off events. [2024-11-10 22:22:37,309 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-11-10 22:22:37,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18550 conditions, 10851 events. 5153/10851 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 96223 event pairs, 2276 based on Foata normal form. 112/9093 useless extension candidates. Maximal degree in co-relation 18480. Up to 4873 conditions per place. [2024-11-10 22:22:37,399 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 158 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2024-11-10 22:22:37,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 242 transitions, 979 flow [2024-11-10 22:22:37,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2024-11-10 22:22:37,400 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7638095238095238 [2024-11-10 22:22:37,400 INFO L175 Difference]: Start difference. First operand has 159 places, 186 transitions, 545 flow. Second operand 3 states and 401 transitions. [2024-11-10 22:22:37,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 242 transitions, 979 flow [2024-11-10 22:22:37,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 242 transitions, 915 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:37,405 INFO L231 Difference]: Finished difference. Result has 158 places, 187 transitions, 499 flow [2024-11-10 22:22:37,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=158, PETRI_TRANSITIONS=187} [2024-11-10 22:22:37,406 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 7 predicate places. [2024-11-10 22:22:37,406 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 187 transitions, 499 flow [2024-11-10 22:22:37,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 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) [2024-11-10 22:22:37,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:37,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:37,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:22:37,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:37,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash -263090580, now seen corresponding path program 1 times [2024-11-10 22:22:37,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:37,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477391786] [2024-11-10 22:22:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:37,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:37,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:37,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477391786] [2024-11-10 22:22:37,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477391786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:37,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:37,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:37,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743537815] [2024-11-10 22:22:37,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:37,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:37,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:37,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:37,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:22:37,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 187 transitions, 499 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:37,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:37,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:22:37,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:38,620 INFO L124 PetriNetUnfolderBase]: 7104/14919 cut-off events. [2024-11-10 22:22:38,620 INFO L125 PetriNetUnfolderBase]: For 341/341 co-relation queries the response was YES. [2024-11-10 22:22:38,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25908 conditions, 14919 events. 7104/14919 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 138017 event pairs, 2894 based on Foata normal form. 336/12521 useless extension candidates. Maximal degree in co-relation 25846. Up to 6604 conditions per place. [2024-11-10 22:22:38,675 INFO L140 encePairwiseOnDemand]: 159/175 looper letters, 179 selfloop transitions, 10 changer transitions 0/263 dead transitions. [2024-11-10 22:22:38,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 263 transitions, 1031 flow [2024-11-10 22:22:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 486 transitions. [2024-11-10 22:22:38,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6942857142857143 [2024-11-10 22:22:38,677 INFO L175 Difference]: Start difference. First operand has 158 places, 187 transitions, 499 flow. Second operand 4 states and 486 transitions. [2024-11-10 22:22:38,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 263 transitions, 1031 flow [2024-11-10 22:22:38,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 263 transitions, 1029 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:38,681 INFO L231 Difference]: Finished difference. Result has 161 places, 191 transitions, 565 flow [2024-11-10 22:22:38,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=565, PETRI_PLACES=161, PETRI_TRANSITIONS=191} [2024-11-10 22:22:38,682 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 10 predicate places. [2024-11-10 22:22:38,682 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 191 transitions, 565 flow [2024-11-10 22:22:38,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:38,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:38,683 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:38,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:22:38,683 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:38,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:38,683 INFO L85 PathProgramCache]: Analyzing trace with hash 434127991, now seen corresponding path program 1 times [2024-11-10 22:22:38,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:38,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179500000] [2024-11-10 22:22:38,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:38,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179500000] [2024-11-10 22:22:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179500000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:38,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:38,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:38,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913469879] [2024-11-10 22:22:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:38,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:38,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:38,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:38,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:38,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 175 [2024-11-10 22:22:38,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 191 transitions, 565 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:38,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:38,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 175 [2024-11-10 22:22:38,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:39,517 INFO L124 PetriNetUnfolderBase]: 5451/12760 cut-off events. [2024-11-10 22:22:39,517 INFO L125 PetriNetUnfolderBase]: For 1982/2124 co-relation queries the response was YES. [2024-11-10 22:22:39,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22961 conditions, 12760 events. 5451/12760 cut-off events. For 1982/2124 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 125100 event pairs, 3559 based on Foata normal form. 81/10795 useless extension candidates. Maximal degree in co-relation 22895. Up to 7924 conditions per place. [2024-11-10 22:22:39,563 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 98 selfloop transitions, 7 changer transitions 0/189 dead transitions. [2024-11-10 22:22:39,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 189 transitions, 766 flow [2024-11-10 22:22:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:39,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-11-10 22:22:39,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6685714285714286 [2024-11-10 22:22:39,565 INFO L175 Difference]: Start difference. First operand has 161 places, 191 transitions, 565 flow. Second operand 3 states and 351 transitions. [2024-11-10 22:22:39,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 189 transitions, 766 flow [2024-11-10 22:22:39,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 189 transitions, 759 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:39,575 INFO L231 Difference]: Finished difference. Result has 163 places, 189 transitions, 574 flow [2024-11-10 22:22:39,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=163, PETRI_TRANSITIONS=189} [2024-11-10 22:22:39,578 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 12 predicate places. [2024-11-10 22:22:39,578 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 189 transitions, 574 flow [2024-11-10 22:22:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:39,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:39,579 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-10 22:22:39,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:22:39,579 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:39,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1200108856, now seen corresponding path program 2 times [2024-11-10 22:22:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:39,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5126723] [2024-11-10 22:22:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:39,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:39,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:39,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5126723] [2024-11-10 22:22:39,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5126723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:39,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011082910] [2024-11-10 22:22:39,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:22:39,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:39,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:39,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:22:39,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:22:39,793 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:22:39,793 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:22:39,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:22:39,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:22:39,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:22:39,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011082910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:39,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:39,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 13 [2024-11-10 22:22:39,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987451673] [2024-11-10 22:22:39,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:39,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 22:22:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 22:22:39,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-10 22:22:39,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:39,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 189 transitions, 574 flow. Second operand has 15 states, 15 states have (on average 86.33333333333333) internal successors, (1295), 15 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:39,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:39,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:39,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:41,168 INFO L124 PetriNetUnfolderBase]: 5453/12766 cut-off events. [2024-11-10 22:22:41,168 INFO L125 PetriNetUnfolderBase]: For 2007/2149 co-relation queries the response was YES. [2024-11-10 22:22:41,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22986 conditions, 12766 events. 5453/12766 cut-off events. For 2007/2149 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 125218 event pairs, 3559 based on Foata normal form. 81/10801 useless extension candidates. Maximal degree in co-relation 22905. Up to 7899 conditions per place. [2024-11-10 22:22:41,239 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 84 selfloop transitions, 33 changer transitions 0/199 dead transitions. [2024-11-10 22:22:41,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 199 transitions, 839 flow [2024-11-10 22:22:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 22:22:41,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 22:22:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1219 transitions. [2024-11-10 22:22:41,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5358241758241759 [2024-11-10 22:22:41,242 INFO L175 Difference]: Start difference. First operand has 163 places, 189 transitions, 574 flow. Second operand 13 states and 1219 transitions. [2024-11-10 22:22:41,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 199 transitions, 839 flow [2024-11-10 22:22:41,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 199 transitions, 803 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 22:22:41,258 INFO L231 Difference]: Finished difference. Result has 167 places, 191 transitions, 603 flow [2024-11-10 22:22:41,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=603, PETRI_PLACES=167, PETRI_TRANSITIONS=191} [2024-11-10 22:22:41,258 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 16 predicate places. [2024-11-10 22:22:41,258 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 191 transitions, 603 flow [2024-11-10 22:22:41,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 86.33333333333333) internal successors, (1295), 15 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:41,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:41,259 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:41,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:22:41,460 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,SelfDestructingSolverStorable6 [2024-11-10 22:22:41,460 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:41,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:41,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1546875886, now seen corresponding path program 1 times [2024-11-10 22:22:41,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:41,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388873221] [2024-11-10 22:22:41,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:22:41,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388873221] [2024-11-10 22:22:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388873221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107807896] [2024-11-10 22:22:41,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:41,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:41,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:41,578 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:22:41,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:22:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:41,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:22:41,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:22:41,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:22:41,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107807896] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:41,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:41,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2024-11-10 22:22:41,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61791828] [2024-11-10 22:22:41,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:41,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 22:22:41,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:41,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 22:22:41,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-10 22:22:41,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:41,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 191 transitions, 603 flow. Second operand has 11 states, 11 states have (on average 87.27272727272727) internal successors, (960), 11 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:41,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:41,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:41,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:42,643 INFO L124 PetriNetUnfolderBase]: 5449/12758 cut-off events. [2024-11-10 22:22:42,644 INFO L125 PetriNetUnfolderBase]: For 2008/2150 co-relation queries the response was YES. [2024-11-10 22:22:42,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22969 conditions, 12758 events. 5449/12758 cut-off events. For 2008/2150 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 125015 event pairs, 3559 based on Foata normal form. 83/10795 useless extension candidates. Maximal degree in co-relation 22806. Up to 7909 conditions per place. [2024-11-10 22:22:42,695 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 81 selfloop transitions, 24 changer transitions 0/187 dead transitions. [2024-11-10 22:22:42,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 187 transitions, 787 flow [2024-11-10 22:22:42,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:22:42,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:22:42,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 687 transitions. [2024-11-10 22:22:42,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5608163265306122 [2024-11-10 22:22:42,697 INFO L175 Difference]: Start difference. First operand has 167 places, 191 transitions, 603 flow. Second operand 7 states and 687 transitions. [2024-11-10 22:22:42,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 187 transitions, 787 flow [2024-11-10 22:22:42,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 187 transitions, 725 flow, removed 8 selfloop flow, removed 10 redundant places. [2024-11-10 22:22:42,709 INFO L231 Difference]: Finished difference. Result has 165 places, 187 transitions, 589 flow [2024-11-10 22:22:42,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=589, PETRI_PLACES=165, PETRI_TRANSITIONS=187} [2024-11-10 22:22:42,710 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 14 predicate places. [2024-11-10 22:22:42,710 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 187 transitions, 589 flow [2024-11-10 22:22:42,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 87.27272727272727) internal successors, (960), 11 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:42,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:42,711 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:42,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:22:42,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:42,912 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:42,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 691527880, now seen corresponding path program 2 times [2024-11-10 22:22:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962459668] [2024-11-10 22:22:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:22:43,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:43,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962459668] [2024-11-10 22:22:43,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962459668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:43,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129859074] [2024-11-10 22:22:43,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:22:43,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:43,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:43,025 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) [2024-11-10 22:22:43,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:22:43,103 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:22:43,103 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:22:43,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:22:43,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-10 22:22:43,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:22:43,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129859074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:43,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:22:43,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 10 [2024-11-10 22:22:43,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138690843] [2024-11-10 22:22:43,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:43,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:43,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:43,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-10 22:22:43,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:43,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 187 transitions, 589 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:43,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:43,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:43,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:43,995 INFO L124 PetriNetUnfolderBase]: 6295/14350 cut-off events. [2024-11-10 22:22:43,995 INFO L125 PetriNetUnfolderBase]: For 2380/2422 co-relation queries the response was YES. [2024-11-10 22:22:44,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26293 conditions, 14350 events. 6295/14350 cut-off events. For 2380/2422 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 139801 event pairs, 3226 based on Foata normal form. 42/12107 useless extension candidates. Maximal degree in co-relation 26126. Up to 7093 conditions per place. [2024-11-10 22:22:44,043 INFO L140 encePairwiseOnDemand]: 168/175 looper letters, 136 selfloop transitions, 7 changer transitions 0/223 dead transitions. [2024-11-10 22:22:44,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 223 transitions, 950 flow [2024-11-10 22:22:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:44,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2024-11-10 22:22:44,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6528571428571428 [2024-11-10 22:22:44,045 INFO L175 Difference]: Start difference. First operand has 165 places, 187 transitions, 589 flow. Second operand 4 states and 457 transitions. [2024-11-10 22:22:44,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 223 transitions, 950 flow [2024-11-10 22:22:44,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 223 transitions, 902 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 22:22:44,061 INFO L231 Difference]: Finished difference. Result has 162 places, 187 transitions, 565 flow [2024-11-10 22:22:44,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=565, PETRI_PLACES=162, PETRI_TRANSITIONS=187} [2024-11-10 22:22:44,062 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 11 predicate places. [2024-11-10 22:22:44,062 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 187 transitions, 565 flow [2024-11-10 22:22:44,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:44,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:44,063 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:44,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:44,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:44,263 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:44,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash -37501562, now seen corresponding path program 1 times [2024-11-10 22:22:44,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:44,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164355390] [2024-11-10 22:22:44,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:44,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:22:44,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:44,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164355390] [2024-11-10 22:22:44,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164355390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:44,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472648929] [2024-11-10 22:22:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:44,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:44,387 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) [2024-11-10 22:22:44,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:22:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:44,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:22:44,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:22:44,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:22:44,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472648929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:44,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:44,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-10 22:22:44,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890259830] [2024-11-10 22:22:44,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:44,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:22:44,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:44,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:22:44,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:22:44,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:44,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 187 transitions, 565 flow. Second operand has 18 states, 18 states have (on average 86.66666666666667) internal successors, (1560), 18 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:44,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:44,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:44,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:45,604 INFO L124 PetriNetUnfolderBase]: 5757/13586 cut-off events. [2024-11-10 22:22:45,604 INFO L125 PetriNetUnfolderBase]: For 3848/3990 co-relation queries the response was YES. [2024-11-10 22:22:45,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25110 conditions, 13586 events. 5757/13586 cut-off events. For 3848/3990 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 134792 event pairs, 3813 based on Foata normal form. 83/11449 useless extension candidates. Maximal degree in co-relation 24984. Up to 8383 conditions per place. [2024-11-10 22:22:45,648 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 80 selfloop transitions, 22 changer transitions 0/183 dead transitions. [2024-11-10 22:22:45,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 183 transitions, 753 flow [2024-11-10 22:22:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:22:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:22:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1035 transitions. [2024-11-10 22:22:45,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5376623376623376 [2024-11-10 22:22:45,651 INFO L175 Difference]: Start difference. First operand has 162 places, 187 transitions, 565 flow. Second operand 11 states and 1035 transitions. [2024-11-10 22:22:45,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 183 transitions, 753 flow [2024-11-10 22:22:45,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 183 transitions, 745 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:45,683 INFO L231 Difference]: Finished difference. Result has 172 places, 183 transitions, 603 flow [2024-11-10 22:22:45,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=603, PETRI_PLACES=172, PETRI_TRANSITIONS=183} [2024-11-10 22:22:45,684 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 21 predicate places. [2024-11-10 22:22:45,684 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 183 transitions, 603 flow [2024-11-10 22:22:45,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 86.66666666666667) internal successors, (1560), 18 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:45,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:45,685 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:45,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:45,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 22:22:45,889 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:45,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1725732240, now seen corresponding path program 2 times [2024-11-10 22:22:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:45,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754965633] [2024-11-10 22:22:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:45,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:46,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:46,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754965633] [2024-11-10 22:22:46,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754965633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:46,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:46,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:46,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530408987] [2024-11-10 22:22:46,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:46,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:46,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:46,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 175 [2024-11-10 22:22:46,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 183 transitions, 603 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:46,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:46,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 175 [2024-11-10 22:22:46,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:47,101 INFO L124 PetriNetUnfolderBase]: 6529/14606 cut-off events. [2024-11-10 22:22:47,102 INFO L125 PetriNetUnfolderBase]: For 4200/4242 co-relation queries the response was YES. [2024-11-10 22:22:47,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27640 conditions, 14606 events. 6529/14606 cut-off events. For 4200/4242 co-relation queries the response was YES. Maximal size of possible extension queue 683. Compared 140616 event pairs, 3522 based on Foata normal form. 98/12329 useless extension candidates. Maximal degree in co-relation 27492. Up to 7689 conditions per place. [2024-11-10 22:22:47,162 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 134 selfloop transitions, 7 changer transitions 0/217 dead transitions. [2024-11-10 22:22:47,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 217 transitions, 952 flow [2024-11-10 22:22:47,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2024-11-10 22:22:47,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-11-10 22:22:47,167 INFO L175 Difference]: Start difference. First operand has 172 places, 183 transitions, 603 flow. Second operand 4 states and 448 transitions. [2024-11-10 22:22:47,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 217 transitions, 952 flow [2024-11-10 22:22:47,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 217 transitions, 908 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-10 22:22:47,204 INFO L231 Difference]: Finished difference. Result has 164 places, 182 transitions, 569 flow [2024-11-10 22:22:47,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=569, PETRI_PLACES=164, PETRI_TRANSITIONS=182} [2024-11-10 22:22:47,205 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 13 predicate places. [2024-11-10 22:22:47,205 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 182 transitions, 569 flow [2024-11-10 22:22:47,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:47,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:47,205 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:47,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:22:47,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:47,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:47,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2145371955, now seen corresponding path program 1 times [2024-11-10 22:22:47,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:47,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143697912] [2024-11-10 22:22:47,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:47,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:47,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:47,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143697912] [2024-11-10 22:22:47,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143697912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:47,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:47,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:47,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409615403] [2024-11-10 22:22:47,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:47,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:47,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:47,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:47,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:47,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 175 [2024-11-10 22:22:47,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 182 transitions, 569 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:47,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:47,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 175 [2024-11-10 22:22:47,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:48,666 INFO L124 PetriNetUnfolderBase]: 6595/14560 cut-off events. [2024-11-10 22:22:48,666 INFO L125 PetriNetUnfolderBase]: For 4628/4807 co-relation queries the response was YES. [2024-11-10 22:22:48,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27766 conditions, 14560 events. 6595/14560 cut-off events. For 4628/4807 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 138043 event pairs, 3447 based on Foata normal form. 339/12399 useless extension candidates. Maximal degree in co-relation 27632. Up to 7488 conditions per place. [2024-11-10 22:22:48,747 INFO L140 encePairwiseOnDemand]: 168/175 looper letters, 141 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2024-11-10 22:22:48,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 220 transitions, 1000 flow [2024-11-10 22:22:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:48,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2024-11-10 22:22:48,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-10 22:22:48,749 INFO L175 Difference]: Start difference. First operand has 164 places, 182 transitions, 569 flow. Second operand 4 states and 450 transitions. [2024-11-10 22:22:48,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 220 transitions, 1000 flow [2024-11-10 22:22:48,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 220 transitions, 980 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:48,784 INFO L231 Difference]: Finished difference. Result has 162 places, 180 transitions, 561 flow [2024-11-10 22:22:48,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=561, PETRI_PLACES=162, PETRI_TRANSITIONS=180} [2024-11-10 22:22:48,785 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 11 predicate places. [2024-11-10 22:22:48,785 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 180 transitions, 561 flow [2024-11-10 22:22:48,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:48,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:48,785 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:48,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:22:48,786 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:48,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2144355088, now seen corresponding path program 1 times [2024-11-10 22:22:48,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:48,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106783355] [2024-11-10 22:22:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:48,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:48,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:48,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106783355] [2024-11-10 22:22:48,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106783355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:48,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:48,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:48,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208804812] [2024-11-10 22:22:48,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:48,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:48,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:48,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:48,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:48,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:22:48,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 180 transitions, 561 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:48,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:48,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:22:48,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:50,380 INFO L124 PetriNetUnfolderBase]: 9773/20898 cut-off events. [2024-11-10 22:22:50,380 INFO L125 PetriNetUnfolderBase]: For 5747/6064 co-relation queries the response was YES. [2024-11-10 22:22:50,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40226 conditions, 20898 events. 9773/20898 cut-off events. For 5747/6064 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 200338 event pairs, 4417 based on Foata normal form. 417/18528 useless extension candidates. Maximal degree in co-relation 40092. Up to 9507 conditions per place. [2024-11-10 22:22:50,479 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 162 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2024-11-10 22:22:50,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 240 transitions, 1066 flow [2024-11-10 22:22:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2024-11-10 22:22:50,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.76 [2024-11-10 22:22:50,481 INFO L175 Difference]: Start difference. First operand has 162 places, 180 transitions, 561 flow. Second operand 3 states and 399 transitions. [2024-11-10 22:22:50,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 240 transitions, 1066 flow [2024-11-10 22:22:50,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 240 transitions, 1056 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:50,541 INFO L231 Difference]: Finished difference. Result has 162 places, 181 transitions, 569 flow [2024-11-10 22:22:50,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=569, PETRI_PLACES=162, PETRI_TRANSITIONS=181} [2024-11-10 22:22:50,542 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 11 predicate places. [2024-11-10 22:22:50,542 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 181 transitions, 569 flow [2024-11-10 22:22:50,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:50,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:50,542 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:50,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:22:50,542 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:50,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:50,543 INFO L85 PathProgramCache]: Analyzing trace with hash -768699937, now seen corresponding path program 1 times [2024-11-10 22:22:50,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:50,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133028918] [2024-11-10 22:22:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:50,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:50,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133028918] [2024-11-10 22:22:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133028918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483813071] [2024-11-10 22:22:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:50,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:50,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:50,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:50,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:50,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 181 transitions, 569 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:50,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:50,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:50,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:51,926 INFO L124 PetriNetUnfolderBase]: 9869/22260 cut-off events. [2024-11-10 22:22:51,926 INFO L125 PetriNetUnfolderBase]: For 6546/6637 co-relation queries the response was YES. [2024-11-10 22:22:51,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42560 conditions, 22260 events. 9869/22260 cut-off events. For 6546/6637 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 223832 event pairs, 4241 based on Foata normal form. 91/19497 useless extension candidates. Maximal degree in co-relation 42426. Up to 9382 conditions per place. [2024-11-10 22:22:52,165 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 133 selfloop transitions, 7 changer transitions 0/218 dead transitions. [2024-11-10 22:22:52,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 218 transitions, 936 flow [2024-11-10 22:22:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2024-11-10 22:22:52,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-10 22:22:52,167 INFO L175 Difference]: Start difference. First operand has 162 places, 181 transitions, 569 flow. Second operand 4 states and 455 transitions. [2024-11-10 22:22:52,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 218 transitions, 936 flow [2024-11-10 22:22:52,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 218 transitions, 932 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:52,246 INFO L231 Difference]: Finished difference. Result has 164 places, 181 transitions, 593 flow [2024-11-10 22:22:52,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=593, PETRI_PLACES=164, PETRI_TRANSITIONS=181} [2024-11-10 22:22:52,247 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 13 predicate places. [2024-11-10 22:22:52,247 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 181 transitions, 593 flow [2024-11-10 22:22:52,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:52,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:52,247 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:52,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:22:52,247 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:52,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash -731357850, now seen corresponding path program 1 times [2024-11-10 22:22:52,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:52,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700812674] [2024-11-10 22:22:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:52,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:52,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:52,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700812674] [2024-11-10 22:22:52,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700812674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:52,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:52,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:52,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250671251] [2024-11-10 22:22:52,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:52,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:52,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:52,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:52,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:52,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:52,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 181 transitions, 593 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:52,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:52,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:52,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:53,714 INFO L124 PetriNetUnfolderBase]: 10837/22675 cut-off events. [2024-11-10 22:22:53,714 INFO L125 PetriNetUnfolderBase]: For 9525/9600 co-relation queries the response was YES. [2024-11-10 22:22:53,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46115 conditions, 22675 events. 10837/22675 cut-off events. For 9525/9600 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 216444 event pairs, 5044 based on Foata normal form. 255/20555 useless extension candidates. Maximal degree in co-relation 45979. Up to 10293 conditions per place. [2024-11-10 22:22:53,834 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 200 selfloop transitions, 3 changer transitions 0/276 dead transitions. [2024-11-10 22:22:53,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 276 transitions, 1242 flow [2024-11-10 22:22:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2024-11-10 22:22:53,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7357142857142858 [2024-11-10 22:22:53,836 INFO L175 Difference]: Start difference. First operand has 164 places, 181 transitions, 593 flow. Second operand 4 states and 515 transitions. [2024-11-10 22:22:53,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 276 transitions, 1242 flow [2024-11-10 22:22:53,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 276 transitions, 1230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:53,983 INFO L231 Difference]: Finished difference. Result has 167 places, 182 transitions, 603 flow [2024-11-10 22:22:53,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=603, PETRI_PLACES=167, PETRI_TRANSITIONS=182} [2024-11-10 22:22:53,984 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 16 predicate places. [2024-11-10 22:22:53,984 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 182 transitions, 603 flow [2024-11-10 22:22:53,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:53,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:53,985 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:53,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 22:22:53,985 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:53,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1958092295, now seen corresponding path program 1 times [2024-11-10 22:22:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967517459] [2024-11-10 22:22:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:54,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:54,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967517459] [2024-11-10 22:22:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967517459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:54,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844452569] [2024-11-10 22:22:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:54,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:22:54,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:22:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:22:54,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 175 [2024-11-10 22:22:54,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 182 transitions, 603 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:54,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:54,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 175 [2024-11-10 22:22:54,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:55,771 INFO L124 PetriNetUnfolderBase]: 13941/27306 cut-off events. [2024-11-10 22:22:55,771 INFO L125 PetriNetUnfolderBase]: For 7224/7292 co-relation queries the response was YES. [2024-11-10 22:22:55,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55905 conditions, 27306 events. 13941/27306 cut-off events. For 7224/7292 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 249884 event pairs, 5425 based on Foata normal form. 0/24259 useless extension candidates. Maximal degree in co-relation 55768. Up to 11854 conditions per place. [2024-11-10 22:22:55,929 INFO L140 encePairwiseOnDemand]: 164/175 looper letters, 173 selfloop transitions, 13 changer transitions 0/255 dead transitions. [2024-11-10 22:22:55,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 255 transitions, 1135 flow [2024-11-10 22:22:55,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:22:55,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:22:55,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 566 transitions. [2024-11-10 22:22:55,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6468571428571429 [2024-11-10 22:22:55,931 INFO L175 Difference]: Start difference. First operand has 167 places, 182 transitions, 603 flow. Second operand 5 states and 566 transitions. [2024-11-10 22:22:55,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 255 transitions, 1135 flow [2024-11-10 22:22:56,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 255 transitions, 1131 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:56,022 INFO L231 Difference]: Finished difference. Result has 170 places, 182 transitions, 649 flow [2024-11-10 22:22:56,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=649, PETRI_PLACES=170, PETRI_TRANSITIONS=182} [2024-11-10 22:22:56,022 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 19 predicate places. [2024-11-10 22:22:56,022 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 182 transitions, 649 flow [2024-11-10 22:22:56,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:56,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:56,023 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:56,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 22:22:56,023 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:56,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:56,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1958093288, now seen corresponding path program 1 times [2024-11-10 22:22:56,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:56,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880936523] [2024-11-10 22:22:56,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:56,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:56,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:56,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880936523] [2024-11-10 22:22:56,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880936523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:56,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:56,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603518488] [2024-11-10 22:22:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:56,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:56,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:56,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:56,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:56,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:22:56,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 182 transitions, 649 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:56,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:56,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:22:56,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:57,658 INFO L124 PetriNetUnfolderBase]: 11173/24186 cut-off events. [2024-11-10 22:22:57,658 INFO L125 PetriNetUnfolderBase]: For 15679/15735 co-relation queries the response was YES. [2024-11-10 22:22:57,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51819 conditions, 24186 events. 11173/24186 cut-off events. For 15679/15735 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 238123 event pairs, 4899 based on Foata normal form. 270/22051 useless extension candidates. Maximal degree in co-relation 51679. Up to 10909 conditions per place. [2024-11-10 22:22:57,801 INFO L140 encePairwiseOnDemand]: 165/175 looper letters, 174 selfloop transitions, 10 changer transitions 0/254 dead transitions. [2024-11-10 22:22:57,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 254 transitions, 1167 flow [2024-11-10 22:22:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:57,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2024-11-10 22:22:57,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6814285714285714 [2024-11-10 22:22:57,803 INFO L175 Difference]: Start difference. First operand has 170 places, 182 transitions, 649 flow. Second operand 4 states and 477 transitions. [2024-11-10 22:22:57,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 254 transitions, 1167 flow [2024-11-10 22:22:57,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 254 transitions, 1150 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:22:58,000 INFO L231 Difference]: Finished difference. Result has 170 places, 180 transitions, 640 flow [2024-11-10 22:22:58,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=640, PETRI_PLACES=170, PETRI_TRANSITIONS=180} [2024-11-10 22:22:58,001 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 19 predicate places. [2024-11-10 22:22:58,001 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 180 transitions, 640 flow [2024-11-10 22:22:58,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:58,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:58,001 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:58,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:22:58,001 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:22:58,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2082019721, now seen corresponding path program 1 times [2024-11-10 22:22:58,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:58,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368079417] [2024-11-10 22:22:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:58,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:22:58,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368079417] [2024-11-10 22:22:58,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368079417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:58,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:58,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:22:58,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577664043] [2024-11-10 22:22:58,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:58,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:58,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:58,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:58,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:22:58,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 180 transitions, 640 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:22:58,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:58,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:22:58,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:59,960 INFO L124 PetriNetUnfolderBase]: 10777/23672 cut-off events. [2024-11-10 22:22:59,960 INFO L125 PetriNetUnfolderBase]: For 18243/18714 co-relation queries the response was YES. [2024-11-10 22:23:00,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49955 conditions, 23672 events. 10777/23672 cut-off events. For 18243/18714 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 234908 event pairs, 5892 based on Foata normal form. 241/21209 useless extension candidates. Maximal degree in co-relation 49816. Up to 12593 conditions per place. [2024-11-10 22:23:00,098 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 143 selfloop transitions, 7 changer transitions 0/223 dead transitions. [2024-11-10 22:23:00,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 223 transitions, 1144 flow [2024-11-10 22:23:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2024-11-10 22:23:00,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6514285714285715 [2024-11-10 22:23:00,100 INFO L175 Difference]: Start difference. First operand has 170 places, 180 transitions, 640 flow. Second operand 4 states and 456 transitions. [2024-11-10 22:23:00,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 223 transitions, 1144 flow [2024-11-10 22:23:00,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 223 transitions, 1118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:00,159 INFO L231 Difference]: Finished difference. Result has 171 places, 180 transitions, 648 flow [2024-11-10 22:23:00,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=648, PETRI_PLACES=171, PETRI_TRANSITIONS=180} [2024-11-10 22:23:00,159 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 20 predicate places. [2024-11-10 22:23:00,159 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 180 transitions, 648 flow [2024-11-10 22:23:00,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:00,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:00,160 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:00,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:23:00,160 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:00,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:00,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1940076370, now seen corresponding path program 1 times [2024-11-10 22:23:00,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:00,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431115440] [2024-11-10 22:23:00,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:00,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:00,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:00,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431115440] [2024-11-10 22:23:00,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431115440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:00,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:23:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071392993] [2024-11-10 22:23:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:00,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:00,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:00,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 175 [2024-11-10 22:23:00,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 180 transitions, 648 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:00,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:00,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 175 [2024-11-10 22:23:00,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:02,281 INFO L124 PetriNetUnfolderBase]: 10501/23622 cut-off events. [2024-11-10 22:23:02,281 INFO L125 PetriNetUnfolderBase]: For 16679/16778 co-relation queries the response was YES. [2024-11-10 22:23:02,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50558 conditions, 23622 events. 10501/23622 cut-off events. For 16679/16778 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 238622 event pairs, 4841 based on Foata normal form. 279/21875 useless extension candidates. Maximal degree in co-relation 50417. Up to 10676 conditions per place. [2024-11-10 22:23:02,416 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 137 selfloop transitions, 6 changer transitions 0/216 dead transitions. [2024-11-10 22:23:02,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 216 transitions, 1023 flow [2024-11-10 22:23:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2024-11-10 22:23:02,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6371428571428571 [2024-11-10 22:23:02,418 INFO L175 Difference]: Start difference. First operand has 171 places, 180 transitions, 648 flow. Second operand 4 states and 446 transitions. [2024-11-10 22:23:02,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 216 transitions, 1023 flow [2024-11-10 22:23:02,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 216 transitions, 1011 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:02,671 INFO L231 Difference]: Finished difference. Result has 171 places, 179 transitions, 646 flow [2024-11-10 22:23:02,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=646, PETRI_PLACES=171, PETRI_TRANSITIONS=179} [2024-11-10 22:23:02,672 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 20 predicate places. [2024-11-10 22:23:02,672 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 179 transitions, 646 flow [2024-11-10 22:23:02,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:02,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:02,672 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:02,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:23:02,672 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:02,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash 571320409, now seen corresponding path program 1 times [2024-11-10 22:23:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:02,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105853156] [2024-11-10 22:23:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:02,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:02,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105853156] [2024-11-10 22:23:02,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105853156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:02,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:02,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:23:02,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338782315] [2024-11-10 22:23:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:02,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:23:02,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:02,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:23:02,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:23:02,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 175 [2024-11-10 22:23:02,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 179 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:02,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:02,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 175 [2024-11-10 22:23:02,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:04,743 INFO L124 PetriNetUnfolderBase]: 13847/27852 cut-off events. [2024-11-10 22:23:04,743 INFO L125 PetriNetUnfolderBase]: For 19821/19999 co-relation queries the response was YES. [2024-11-10 22:23:04,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60732 conditions, 27852 events. 13847/27852 cut-off events. For 19821/19999 co-relation queries the response was YES. Maximal size of possible extension queue 873. Compared 260503 event pairs, 6453 based on Foata normal form. 588/25895 useless extension candidates. Maximal degree in co-relation 60591. Up to 13828 conditions per place. [2024-11-10 22:23:04,898 INFO L140 encePairwiseOnDemand]: 162/175 looper letters, 286 selfloop transitions, 14 changer transitions 0/366 dead transitions. [2024-11-10 22:23:04,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 366 transitions, 1707 flow [2024-11-10 22:23:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:23:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:23:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 865 transitions. [2024-11-10 22:23:04,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2024-11-10 22:23:04,900 INFO L175 Difference]: Start difference. First operand has 171 places, 179 transitions, 646 flow. Second operand 8 states and 865 transitions. [2024-11-10 22:23:04,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 366 transitions, 1707 flow [2024-11-10 22:23:05,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 366 transitions, 1695 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:23:05,125 INFO L231 Difference]: Finished difference. Result has 178 places, 181 transitions, 694 flow [2024-11-10 22:23:05,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=694, PETRI_PLACES=178, PETRI_TRANSITIONS=181} [2024-11-10 22:23:05,126 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 27 predicate places. [2024-11-10 22:23:05,126 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 181 transitions, 694 flow [2024-11-10 22:23:05,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:05,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:05,127 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:05,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 22:23:05,127 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:05,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:05,127 INFO L85 PathProgramCache]: Analyzing trace with hash 857908280, now seen corresponding path program 1 times [2024-11-10 22:23:05,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:05,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700424062] [2024-11-10 22:23:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:05,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:05,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:05,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700424062] [2024-11-10 22:23:05,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700424062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:05,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:05,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:23:05,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035278577] [2024-11-10 22:23:05,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:05,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:05,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:05,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:05,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:05,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:23:05,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 181 transitions, 694 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:05,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:05,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:23:05,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:06,606 INFO L124 PetriNetUnfolderBase]: 9829/19970 cut-off events. [2024-11-10 22:23:06,606 INFO L125 PetriNetUnfolderBase]: For 27801/28743 co-relation queries the response was YES. [2024-11-10 22:23:06,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46679 conditions, 19970 events. 9829/19970 cut-off events. For 27801/28743 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 179682 event pairs, 4820 based on Foata normal form. 630/19217 useless extension candidates. Maximal degree in co-relation 46534. Up to 10164 conditions per place. [2024-11-10 22:23:06,721 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 235 selfloop transitions, 4 changer transitions 18/328 dead transitions. [2024-11-10 22:23:06,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 328 transitions, 1919 flow [2024-11-10 22:23:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:23:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:23:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 634 transitions. [2024-11-10 22:23:06,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7245714285714285 [2024-11-10 22:23:06,723 INFO L175 Difference]: Start difference. First operand has 178 places, 181 transitions, 694 flow. Second operand 5 states and 634 transitions. [2024-11-10 22:23:06,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 328 transitions, 1919 flow [2024-11-10 22:23:06,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 328 transitions, 1880 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-10 22:23:06,820 INFO L231 Difference]: Finished difference. Result has 182 places, 183 transitions, 707 flow [2024-11-10 22:23:06,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=707, PETRI_PLACES=182, PETRI_TRANSITIONS=183} [2024-11-10 22:23:06,821 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 31 predicate places. [2024-11-10 22:23:06,821 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 183 transitions, 707 flow [2024-11-10 22:23:06,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:06,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:06,822 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:06,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 22:23:06,822 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:06,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:06,822 INFO L85 PathProgramCache]: Analyzing trace with hash 12825737, now seen corresponding path program 1 times [2024-11-10 22:23:06,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:06,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514896987] [2024-11-10 22:23:06,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:06,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:06,895 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:06,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:06,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514896987] [2024-11-10 22:23:06,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514896987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:06,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:06,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:23:06,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002061008] [2024-11-10 22:23:06,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:06,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:06,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:06,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:06,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:06,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:23:06,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 183 transitions, 707 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:06,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:06,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:23:06,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:08,245 INFO L124 PetriNetUnfolderBase]: 8711/17710 cut-off events. [2024-11-10 22:23:08,245 INFO L125 PetriNetUnfolderBase]: For 15649/15949 co-relation queries the response was YES. [2024-11-10 22:23:08,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41027 conditions, 17710 events. 8711/17710 cut-off events. For 15649/15949 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 155099 event pairs, 4586 based on Foata normal form. 340/17115 useless extension candidates. Maximal degree in co-relation 40880. Up to 9352 conditions per place. [2024-11-10 22:23:08,348 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 223 selfloop transitions, 4 changer transitions 18/316 dead transitions. [2024-11-10 22:23:08,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 316 transitions, 1579 flow [2024-11-10 22:23:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:23:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:23:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2024-11-10 22:23:08,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7302857142857143 [2024-11-10 22:23:08,350 INFO L175 Difference]: Start difference. First operand has 182 places, 183 transitions, 707 flow. Second operand 5 states and 639 transitions. [2024-11-10 22:23:08,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 316 transitions, 1579 flow [2024-11-10 22:23:08,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 316 transitions, 1571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:23:08,436 INFO L231 Difference]: Finished difference. Result has 188 places, 185 transitions, 730 flow [2024-11-10 22:23:08,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=730, PETRI_PLACES=188, PETRI_TRANSITIONS=185} [2024-11-10 22:23:08,436 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 37 predicate places. [2024-11-10 22:23:08,437 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 185 transitions, 730 flow [2024-11-10 22:23:08,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:08,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:08,437 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:08,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 22:23:08,437 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:08,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1449322901, now seen corresponding path program 1 times [2024-11-10 22:23:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:08,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162020478] [2024-11-10 22:23:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:08,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:08,505 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:08,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162020478] [2024-11-10 22:23:08,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162020478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:08,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:08,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46498992] [2024-11-10 22:23:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:08,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:08,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:08,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:08,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 185 transitions, 730 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:08,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:08,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:08,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:09,875 INFO L124 PetriNetUnfolderBase]: 9292/18745 cut-off events. [2024-11-10 22:23:09,875 INFO L125 PetriNetUnfolderBase]: For 16675/16776 co-relation queries the response was YES. [2024-11-10 22:23:09,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43991 conditions, 18745 events. 9292/18745 cut-off events. For 16675/16776 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 162245 event pairs, 5005 based on Foata normal form. 275/17950 useless extension candidates. Maximal degree in co-relation 43841. Up to 10404 conditions per place. [2024-11-10 22:23:09,984 INFO L140 encePairwiseOnDemand]: 165/175 looper letters, 182 selfloop transitions, 10 changer transitions 0/261 dead transitions. [2024-11-10 22:23:09,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 261 transitions, 1332 flow [2024-11-10 22:23:09,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2024-11-10 22:23:09,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742857142857143 [2024-11-10 22:23:09,985 INFO L175 Difference]: Start difference. First operand has 188 places, 185 transitions, 730 flow. Second operand 4 states and 472 transitions. [2024-11-10 22:23:09,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 261 transitions, 1332 flow [2024-11-10 22:23:10,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 261 transitions, 1326 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:23:10,096 INFO L231 Difference]: Finished difference. Result has 188 places, 183 transitions, 734 flow [2024-11-10 22:23:10,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=734, PETRI_PLACES=188, PETRI_TRANSITIONS=183} [2024-11-10 22:23:10,097 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 37 predicate places. [2024-11-10 22:23:10,097 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 183 transitions, 734 flow [2024-11-10 22:23:10,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:10,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:10,097 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:10,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 22:23:10,098 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:10,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:10,098 INFO L85 PathProgramCache]: Analyzing trace with hash 863560358, now seen corresponding path program 1 times [2024-11-10 22:23:10,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:10,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291092549] [2024-11-10 22:23:10,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:10,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:10,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:10,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291092549] [2024-11-10 22:23:10,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291092549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:10,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:10,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:10,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661733404] [2024-11-10 22:23:10,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:10,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:10,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:10,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:10,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:10,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:23:10,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 183 transitions, 734 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:10,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:10,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:23:10,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:11,589 INFO L124 PetriNetUnfolderBase]: 9052/18007 cut-off events. [2024-11-10 22:23:11,589 INFO L125 PetriNetUnfolderBase]: For 21860/22322 co-relation queries the response was YES. [2024-11-10 22:23:11,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43676 conditions, 18007 events. 9052/18007 cut-off events. For 21860/22322 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 153752 event pairs, 5115 based on Foata normal form. 608/17588 useless extension candidates. Maximal degree in co-relation 43525. Up to 10448 conditions per place. [2024-11-10 22:23:11,692 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 216 selfloop transitions, 3 changer transitions 0/286 dead transitions. [2024-11-10 22:23:11,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 286 transitions, 1700 flow [2024-11-10 22:23:11,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2024-11-10 22:23:11,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7228571428571429 [2024-11-10 22:23:11,694 INFO L175 Difference]: Start difference. First operand has 188 places, 183 transitions, 734 flow. Second operand 4 states and 506 transitions. [2024-11-10 22:23:11,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 286 transitions, 1700 flow [2024-11-10 22:23:11,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 286 transitions, 1666 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:11,772 INFO L231 Difference]: Finished difference. Result has 191 places, 184 transitions, 740 flow [2024-11-10 22:23:11,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=740, PETRI_PLACES=191, PETRI_TRANSITIONS=184} [2024-11-10 22:23:11,773 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 40 predicate places. [2024-11-10 22:23:11,773 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 184 transitions, 740 flow [2024-11-10 22:23:11,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:11,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:11,773 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:11,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 22:23:11,773 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:11,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash 632901313, now seen corresponding path program 1 times [2024-11-10 22:23:11,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:11,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220091525] [2024-11-10 22:23:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:11,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:11,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220091525] [2024-11-10 22:23:11,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220091525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:11,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:11,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:11,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741638685] [2024-11-10 22:23:11,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:11,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:11,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:11,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:11,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 184 transitions, 740 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:11,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:11,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:11,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:13,428 INFO L124 PetriNetUnfolderBase]: 10623/21837 cut-off events. [2024-11-10 22:23:13,428 INFO L125 PetriNetUnfolderBase]: For 23959/24457 co-relation queries the response was YES. [2024-11-10 22:23:13,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51687 conditions, 21837 events. 10623/21837 cut-off events. For 23959/24457 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 196630 event pairs, 5796 based on Foata normal form. 533/20601 useless extension candidates. Maximal degree in co-relation 51535. Up to 11770 conditions per place. [2024-11-10 22:23:13,569 INFO L140 encePairwiseOnDemand]: 161/175 looper letters, 208 selfloop transitions, 13 changer transitions 0/285 dead transitions. [2024-11-10 22:23:13,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 285 transitions, 1692 flow [2024-11-10 22:23:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:13,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2024-11-10 22:23:13,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-10 22:23:13,571 INFO L175 Difference]: Start difference. First operand has 191 places, 184 transitions, 740 flow. Second operand 4 states and 480 transitions. [2024-11-10 22:23:13,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 285 transitions, 1692 flow [2024-11-10 22:23:13,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 285 transitions, 1690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:23:13,727 INFO L231 Difference]: Finished difference. Result has 195 places, 189 transitions, 815 flow [2024-11-10 22:23:13,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=815, PETRI_PLACES=195, PETRI_TRANSITIONS=189} [2024-11-10 22:23:13,727 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 44 predicate places. [2024-11-10 22:23:13,727 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 189 transitions, 815 flow [2024-11-10 22:23:13,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:13,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:13,728 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:13,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 22:23:13,728 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:13,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:13,728 INFO L85 PathProgramCache]: Analyzing trace with hash 632900320, now seen corresponding path program 1 times [2024-11-10 22:23:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:13,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037534129] [2024-11-10 22:23:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:13,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:13,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:13,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037534129] [2024-11-10 22:23:13,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037534129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:13,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:13,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:13,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419456344] [2024-11-10 22:23:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:13,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:23:13,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:13,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:23:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:23:13,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 175 [2024-11-10 22:23:13,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 189 transitions, 815 flow. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:13,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:13,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 175 [2024-11-10 22:23:13,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:15,692 INFO L124 PetriNetUnfolderBase]: 12027/23235 cut-off events. [2024-11-10 22:23:15,692 INFO L125 PetriNetUnfolderBase]: For 30442/31122 co-relation queries the response was YES. [2024-11-10 22:23:15,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59222 conditions, 23235 events. 12027/23235 cut-off events. For 30442/31122 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 199081 event pairs, 5796 based on Foata normal form. 570/22643 useless extension candidates. Maximal degree in co-relation 59069. Up to 11769 conditions per place. [2024-11-10 22:23:15,838 INFO L140 encePairwiseOnDemand]: 164/175 looper letters, 208 selfloop transitions, 12 changer transitions 0/284 dead transitions. [2024-11-10 22:23:15,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 284 transitions, 1745 flow [2024-11-10 22:23:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:23:15,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:23:15,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 565 transitions. [2024-11-10 22:23:15,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6457142857142857 [2024-11-10 22:23:15,840 INFO L175 Difference]: Start difference. First operand has 195 places, 189 transitions, 815 flow. Second operand 5 states and 565 transitions. [2024-11-10 22:23:15,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 284 transitions, 1745 flow [2024-11-10 22:23:16,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 284 transitions, 1738 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:23:16,050 INFO L231 Difference]: Finished difference. Result has 200 places, 191 transitions, 867 flow [2024-11-10 22:23:16,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=867, PETRI_PLACES=200, PETRI_TRANSITIONS=191} [2024-11-10 22:23:16,051 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 49 predicate places. [2024-11-10 22:23:16,051 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 191 transitions, 867 flow [2024-11-10 22:23:16,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:16,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:16,051 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:16,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 22:23:16,051 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:16,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1854925086, now seen corresponding path program 1 times [2024-11-10 22:23:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:16,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756030123] [2024-11-10 22:23:16,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:16,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:16,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756030123] [2024-11-10 22:23:16,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756030123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:16,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:16,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:23:16,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124537549] [2024-11-10 22:23:16,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:16,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:23:16,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:16,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:23:16,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:23:16,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 175 [2024-11-10 22:23:16,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 191 transitions, 867 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:16,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:16,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 175 [2024-11-10 22:23:16,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:18,442 INFO L124 PetriNetUnfolderBase]: 12528/23562 cut-off events. [2024-11-10 22:23:18,442 INFO L125 PetriNetUnfolderBase]: For 35939/36655 co-relation queries the response was YES. [2024-11-10 22:23:18,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63497 conditions, 23562 events. 12528/23562 cut-off events. For 35939/36655 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 196755 event pairs, 6376 based on Foata normal form. 903/23479 useless extension candidates. Maximal degree in co-relation 63339. Up to 12833 conditions per place. [2024-11-10 22:23:18,548 INFO L140 encePairwiseOnDemand]: 162/175 looper letters, 349 selfloop transitions, 13 changer transitions 0/423 dead transitions. [2024-11-10 22:23:18,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 423 transitions, 2807 flow [2024-11-10 22:23:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:23:18,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:23:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 863 transitions. [2024-11-10 22:23:18,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6164285714285714 [2024-11-10 22:23:18,549 INFO L175 Difference]: Start difference. First operand has 200 places, 191 transitions, 867 flow. Second operand 8 states and 863 transitions. [2024-11-10 22:23:18,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 423 transitions, 2807 flow [2024-11-10 22:23:18,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 423 transitions, 2797 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:18,747 INFO L231 Difference]: Finished difference. Result has 208 places, 193 transitions, 914 flow [2024-11-10 22:23:18,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=914, PETRI_PLACES=208, PETRI_TRANSITIONS=193} [2024-11-10 22:23:18,748 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 57 predicate places. [2024-11-10 22:23:18,748 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 193 transitions, 914 flow [2024-11-10 22:23:18,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:18,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:18,748 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:18,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 22:23:18,748 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:18,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:18,749 INFO L85 PathProgramCache]: Analyzing trace with hash -749813587, now seen corresponding path program 1 times [2024-11-10 22:23:18,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:18,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441750557] [2024-11-10 22:23:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:18,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:18,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:18,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441750557] [2024-11-10 22:23:18,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441750557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:18,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:18,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:18,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349165005] [2024-11-10 22:23:18,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:18,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:18,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:18,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:18,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:18,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:18,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 193 transitions, 914 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:18,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:18,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:18,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:20,630 INFO L124 PetriNetUnfolderBase]: 11693/22648 cut-off events. [2024-11-10 22:23:20,631 INFO L125 PetriNetUnfolderBase]: For 40360/41013 co-relation queries the response was YES. [2024-11-10 22:23:20,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63524 conditions, 22648 events. 11693/22648 cut-off events. For 40360/41013 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 194366 event pairs, 5941 based on Foata normal form. 771/22814 useless extension candidates. Maximal degree in co-relation 63361. Up to 12135 conditions per place. [2024-11-10 22:23:20,818 INFO L140 encePairwiseOnDemand]: 164/175 looper letters, 209 selfloop transitions, 11 changer transitions 0/284 dead transitions. [2024-11-10 22:23:20,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 284 transitions, 1841 flow [2024-11-10 22:23:20,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions. [2024-11-10 22:23:20,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6757142857142857 [2024-11-10 22:23:20,819 INFO L175 Difference]: Start difference. First operand has 208 places, 193 transitions, 914 flow. Second operand 4 states and 473 transitions. [2024-11-10 22:23:20,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 284 transitions, 1841 flow [2024-11-10 22:23:21,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 284 transitions, 1832 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:23:21,088 INFO L231 Difference]: Finished difference. Result has 207 places, 192 transitions, 937 flow [2024-11-10 22:23:21,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=937, PETRI_PLACES=207, PETRI_TRANSITIONS=192} [2024-11-10 22:23:21,089 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 56 predicate places. [2024-11-10 22:23:21,089 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 192 transitions, 937 flow [2024-11-10 22:23:21,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:21,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:21,089 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:21,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 22:23:21,089 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:21,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1565602888, now seen corresponding path program 1 times [2024-11-10 22:23:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807982029] [2024-11-10 22:23:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:21,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:21,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:21,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807982029] [2024-11-10 22:23:21,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807982029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:21,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954282693] [2024-11-10 22:23:21,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:21,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:21,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:21,171 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) [2024-11-10 22:23:21,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:23:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:21,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:23:21,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:21,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954282693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:21,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:23:21,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102127594] [2024-11-10 22:23:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:21,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:23:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:21,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:23:21,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:23:21,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:23:21,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 192 transitions, 937 flow. Second operand has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:21,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:21,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:23:21,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:23,174 INFO L124 PetriNetUnfolderBase]: 10442/20390 cut-off events. [2024-11-10 22:23:23,174 INFO L125 PetriNetUnfolderBase]: For 40080/41120 co-relation queries the response was YES. [2024-11-10 22:23:23,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58390 conditions, 20390 events. 10442/20390 cut-off events. For 40080/41120 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 176505 event pairs, 2198 based on Foata normal form. 1117/21010 useless extension candidates. Maximal degree in co-relation 58226. Up to 7356 conditions per place. [2024-11-10 22:23:23,304 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 327 selfloop transitions, 5 changer transitions 0/398 dead transitions. [2024-11-10 22:23:23,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 398 transitions, 2697 flow [2024-11-10 22:23:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:23:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:23:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 749 transitions. [2024-11-10 22:23:23,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7133333333333334 [2024-11-10 22:23:23,305 INFO L175 Difference]: Start difference. First operand has 207 places, 192 transitions, 937 flow. Second operand 6 states and 749 transitions. [2024-11-10 22:23:23,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 398 transitions, 2697 flow [2024-11-10 22:23:23,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 398 transitions, 2640 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:23,479 INFO L231 Difference]: Finished difference. Result has 207 places, 189 transitions, 922 flow [2024-11-10 22:23:23,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=207, PETRI_TRANSITIONS=189} [2024-11-10 22:23:23,480 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 56 predicate places. [2024-11-10 22:23:23,480 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 189 transitions, 922 flow [2024-11-10 22:23:23,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.0) internal successors, (445), 5 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:23,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:23,481 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:23,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:23,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-10 22:23:23,682 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:23,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1289050645, now seen corresponding path program 1 times [2024-11-10 22:23:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:23,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073228449] [2024-11-10 22:23:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073228449] [2024-11-10 22:23:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073228449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:23,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:23:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078774895] [2024-11-10 22:23:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:23,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:23:23,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:23,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:23:23,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:23:23,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:23:23,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 189 transitions, 922 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:23,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:23,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:23:23,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:25,330 INFO L124 PetriNetUnfolderBase]: 9960/20188 cut-off events. [2024-11-10 22:23:25,330 INFO L125 PetriNetUnfolderBase]: For 37567/38359 co-relation queries the response was YES. [2024-11-10 22:23:25,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56606 conditions, 20188 events. 9960/20188 cut-off events. For 37567/38359 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 179100 event pairs, 4996 based on Foata normal form. 889/20530 useless extension candidates. Maximal degree in co-relation 56443. Up to 9978 conditions per place. [2024-11-10 22:23:25,473 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 171 selfloop transitions, 4 changer transitions 0/242 dead transitions. [2024-11-10 22:23:25,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 242 transitions, 1536 flow [2024-11-10 22:23:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:23:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:23:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2024-11-10 22:23:25,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7276190476190476 [2024-11-10 22:23:25,474 INFO L175 Difference]: Start difference. First operand has 207 places, 189 transitions, 922 flow. Second operand 3 states and 382 transitions. [2024-11-10 22:23:25,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 242 transitions, 1536 flow [2024-11-10 22:23:25,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 242 transitions, 1523 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-10 22:23:25,675 INFO L231 Difference]: Finished difference. Result has 203 places, 188 transitions, 917 flow [2024-11-10 22:23:25,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=917, PETRI_PLACES=203, PETRI_TRANSITIONS=188} [2024-11-10 22:23:25,675 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 52 predicate places. [2024-11-10 22:23:25,675 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 188 transitions, 917 flow [2024-11-10 22:23:25,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:25,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:25,675 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:25,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 22:23:25,676 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:25,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:25,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1312262354, now seen corresponding path program 1 times [2024-11-10 22:23:25,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:25,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741645048] [2024-11-10 22:23:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:25,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:25,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741645048] [2024-11-10 22:23:25,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741645048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548419916] [2024-11-10 22:23:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:25,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:25,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:25,778 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) [2024-11-10 22:23:25,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:23:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:25,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:23:25,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:25,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548419916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:25,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:25,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:23:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797894820] [2024-11-10 22:23:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:25,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:23:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:23:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:23:25,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:23:25,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 188 transitions, 917 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:25,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:25,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:23:25,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:27,733 INFO L124 PetriNetUnfolderBase]: 10757/21226 cut-off events. [2024-11-10 22:23:27,733 INFO L125 PetriNetUnfolderBase]: For 40916/41784 co-relation queries the response was YES. [2024-11-10 22:23:27,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59976 conditions, 21226 events. 10757/21226 cut-off events. For 40916/41784 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 183088 event pairs, 2275 based on Foata normal form. 1024/21931 useless extension candidates. Maximal degree in co-relation 59815. Up to 7696 conditions per place. [2024-11-10 22:23:27,880 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 318 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-11-10 22:23:27,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 384 transitions, 2593 flow [2024-11-10 22:23:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:23:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:23:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 743 transitions. [2024-11-10 22:23:27,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7076190476190476 [2024-11-10 22:23:27,882 INFO L175 Difference]: Start difference. First operand has 203 places, 188 transitions, 917 flow. Second operand 6 states and 743 transitions. [2024-11-10 22:23:27,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 384 transitions, 2593 flow [2024-11-10 22:23:28,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 384 transitions, 2573 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:23:28,165 INFO L231 Difference]: Finished difference. Result has 204 places, 185 transitions, 911 flow [2024-11-10 22:23:28,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=911, PETRI_PLACES=204, PETRI_TRANSITIONS=185} [2024-11-10 22:23:28,165 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 53 predicate places. [2024-11-10 22:23:28,166 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 185 transitions, 911 flow [2024-11-10 22:23:28,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:28,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:28,166 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:28,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 22:23:28,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:28,367 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:28,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2025428759, now seen corresponding path program 1 times [2024-11-10 22:23:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:28,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015559961] [2024-11-10 22:23:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:28,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:28,432 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:28,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:28,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015559961] [2024-11-10 22:23:28,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015559961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:28,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:28,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:23:28,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355249369] [2024-11-10 22:23:28,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:28,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:23:28,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:28,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:23:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:23:28,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 175 [2024-11-10 22:23:28,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 185 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:28,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:28,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 175 [2024-11-10 22:23:28,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:30,285 INFO L124 PetriNetUnfolderBase]: 10241/20716 cut-off events. [2024-11-10 22:23:30,285 INFO L125 PetriNetUnfolderBase]: For 39116/39830 co-relation queries the response was YES. [2024-11-10 22:23:30,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58461 conditions, 20716 events. 10241/20716 cut-off events. For 39116/39830 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 181987 event pairs, 5315 based on Foata normal form. 844/21201 useless extension candidates. Maximal degree in co-relation 58299. Up to 10529 conditions per place. [2024-11-10 22:23:30,381 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 169 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2024-11-10 22:23:30,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 235 transitions, 1510 flow [2024-11-10 22:23:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:23:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:23:30,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2024-11-10 22:23:30,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2024-11-10 22:23:30,382 INFO L175 Difference]: Start difference. First operand has 204 places, 185 transitions, 911 flow. Second operand 3 states and 380 transitions. [2024-11-10 22:23:30,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 235 transitions, 1510 flow [2024-11-10 22:23:30,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 235 transitions, 1497 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-10 22:23:30,597 INFO L231 Difference]: Finished difference. Result has 200 places, 184 transitions, 906 flow [2024-11-10 22:23:30,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=200, PETRI_TRANSITIONS=184} [2024-11-10 22:23:30,597 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 49 predicate places. [2024-11-10 22:23:30,598 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 184 transitions, 906 flow [2024-11-10 22:23:30,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:30,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:30,598 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-10 22:23:30,598 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:30,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:30,599 INFO L85 PathProgramCache]: Analyzing trace with hash 837145597, now seen corresponding path program 1 times [2024-11-10 22:23:30,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:30,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494988804] [2024-11-10 22:23:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:30,677 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:30,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:30,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494988804] [2024-11-10 22:23:30,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494988804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:30,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:30,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:30,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232385657] [2024-11-10 22:23:30,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:30,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:30,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:30,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:30,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:30,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:23:30,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 184 transitions, 906 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:30,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:30,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:23:30,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:32,390 INFO L124 PetriNetUnfolderBase]: 10200/20411 cut-off events. [2024-11-10 22:23:32,390 INFO L125 PetriNetUnfolderBase]: For 38288/39112 co-relation queries the response was YES. [2024-11-10 22:23:32,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57739 conditions, 20411 events. 10200/20411 cut-off events. For 38288/39112 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 179200 event pairs, 5196 based on Foata normal form. 823/21067 useless extension candidates. Maximal degree in co-relation 57579. Up to 10271 conditions per place. [2024-11-10 22:23:32,540 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 221 selfloop transitions, 6 changer transitions 0/288 dead transitions. [2024-11-10 22:23:32,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 288 transitions, 1911 flow [2024-11-10 22:23:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:32,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2024-11-10 22:23:32,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2024-11-10 22:23:32,542 INFO L175 Difference]: Start difference. First operand has 200 places, 184 transitions, 906 flow. Second operand 4 states and 495 transitions. [2024-11-10 22:23:32,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 288 transitions, 1911 flow [2024-11-10 22:23:32,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 288 transitions, 1897 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:32,743 INFO L231 Difference]: Finished difference. Result has 200 places, 183 transitions, 908 flow [2024-11-10 22:23:32,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=908, PETRI_PLACES=200, PETRI_TRANSITIONS=183} [2024-11-10 22:23:32,744 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 49 predicate places. [2024-11-10 22:23:32,744 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 183 transitions, 908 flow [2024-11-10 22:23:32,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:32,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:32,744 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:32,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-10 22:23:32,744 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:32,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:32,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1637417062, now seen corresponding path program 1 times [2024-11-10 22:23:32,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:32,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479251121] [2024-11-10 22:23:32,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:32,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:32,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:32,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479251121] [2024-11-10 22:23:32,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479251121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:32,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518290224] [2024-11-10 22:23:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:32,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:32,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:32,839 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) [2024-11-10 22:23:32,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 22:23:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:32,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 22:23:32,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:33,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:33,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518290224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:33,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:33,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-10 22:23:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828607488] [2024-11-10 22:23:33,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:33,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:33,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:33,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:33,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:23:33,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 175 [2024-11-10 22:23:33,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 183 transitions, 908 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:33,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:33,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 175 [2024-11-10 22:23:33,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:34,840 INFO L124 PetriNetUnfolderBase]: 10377/20990 cut-off events. [2024-11-10 22:23:34,840 INFO L125 PetriNetUnfolderBase]: For 39908/40442 co-relation queries the response was YES. [2024-11-10 22:23:34,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59257 conditions, 20990 events. 10377/20990 cut-off events. For 39908/40442 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 184205 event pairs, 6531 based on Foata normal form. 906/21725 useless extension candidates. Maximal degree in co-relation 59097. Up to 13049 conditions per place. [2024-11-10 22:23:34,963 INFO L140 encePairwiseOnDemand]: 161/175 looper letters, 257 selfloop transitions, 10 changer transitions 0/322 dead transitions. [2024-11-10 22:23:34,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 322 transitions, 2203 flow [2024-11-10 22:23:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:23:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:23:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 597 transitions. [2024-11-10 22:23:34,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6822857142857143 [2024-11-10 22:23:34,964 INFO L175 Difference]: Start difference. First operand has 200 places, 183 transitions, 908 flow. Second operand 5 states and 597 transitions. [2024-11-10 22:23:34,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 322 transitions, 2203 flow [2024-11-10 22:23:35,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 322 transitions, 2147 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:23:35,184 INFO L231 Difference]: Finished difference. Result has 199 places, 179 transitions, 878 flow [2024-11-10 22:23:35,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=878, PETRI_PLACES=199, PETRI_TRANSITIONS=179} [2024-11-10 22:23:35,185 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 48 predicate places. [2024-11-10 22:23:35,185 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 179 transitions, 878 flow [2024-11-10 22:23:35,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:35,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:35,185 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:35,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:35,385 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,SelfDestructingSolverStorable33 [2024-11-10 22:23:35,386 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:35,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:35,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1345250812, now seen corresponding path program 1 times [2024-11-10 22:23:35,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:35,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39892953] [2024-11-10 22:23:35,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:35,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:35,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:35,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39892953] [2024-11-10 22:23:35,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39892953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:35,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069823335] [2024-11-10 22:23:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:35,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:35,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:35,482 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) [2024-11-10 22:23:35,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 22:23:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:35,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:23:35,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:35,722 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:35,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069823335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:35,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:35,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-11-10 22:23:35,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994847629] [2024-11-10 22:23:35,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:35,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:23:35,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:23:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:23:35,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:35,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 179 transitions, 878 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:35,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:35,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:35,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:37,501 INFO L124 PetriNetUnfolderBase]: 10023/20608 cut-off events. [2024-11-10 22:23:37,502 INFO L125 PetriNetUnfolderBase]: For 37169/37575 co-relation queries the response was YES. [2024-11-10 22:23:37,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57634 conditions, 20608 events. 10023/20608 cut-off events. For 37169/37575 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 182336 event pairs, 6995 based on Foata normal form. 576/20986 useless extension candidates. Maximal degree in co-relation 57475. Up to 13892 conditions per place. [2024-11-10 22:23:37,646 INFO L140 encePairwiseOnDemand]: 168/175 looper letters, 260 selfloop transitions, 7 changer transitions 0/322 dead transitions. [2024-11-10 22:23:37,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 322 transitions, 2187 flow [2024-11-10 22:23:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:23:37,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:23:37,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2024-11-10 22:23:37,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6295238095238095 [2024-11-10 22:23:37,648 INFO L175 Difference]: Start difference. First operand has 199 places, 179 transitions, 878 flow. Second operand 6 states and 661 transitions. [2024-11-10 22:23:37,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 322 transitions, 2187 flow [2024-11-10 22:23:37,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 322 transitions, 2089 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-10 22:23:37,864 INFO L231 Difference]: Finished difference. Result has 196 places, 177 transitions, 828 flow [2024-11-10 22:23:37,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=828, PETRI_PLACES=196, PETRI_TRANSITIONS=177} [2024-11-10 22:23:37,864 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 45 predicate places. [2024-11-10 22:23:37,864 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 177 transitions, 828 flow [2024-11-10 22:23:37,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:37,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:37,865 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:37,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:38,065 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,SelfDestructingSolverStorable34 [2024-11-10 22:23:38,066 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:38,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:38,066 INFO L85 PathProgramCache]: Analyzing trace with hash 779680088, now seen corresponding path program 1 times [2024-11-10 22:23:38,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857608987] [2024-11-10 22:23:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:38,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:38,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:38,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857608987] [2024-11-10 22:23:38,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857608987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:38,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924953474] [2024-11-10 22:23:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:38,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:38,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:38,152 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:23:38,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 22:23:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:38,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:23:38,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:38,344 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:38,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:38,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924953474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:38,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:38,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-10 22:23:38,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735004552] [2024-11-10 22:23:38,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:38,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:38,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:38,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:38,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:23:38,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:23:38,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 177 transitions, 828 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:38,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:38,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:23:38,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:39,870 INFO L124 PetriNetUnfolderBase]: 9861/19962 cut-off events. [2024-11-10 22:23:39,871 INFO L125 PetriNetUnfolderBase]: For 30771/31345 co-relation queries the response was YES. [2024-11-10 22:23:39,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54027 conditions, 19962 events. 9861/19962 cut-off events. For 30771/31345 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 174278 event pairs, 6075 based on Foata normal form. 658/20444 useless extension candidates. Maximal degree in co-relation 53871. Up to 12220 conditions per place. [2024-11-10 22:23:40,005 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 161 selfloop transitions, 7 changer transitions 0/223 dead transitions. [2024-11-10 22:23:40,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 223 transitions, 1397 flow [2024-11-10 22:23:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:40,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 454 transitions. [2024-11-10 22:23:40,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6485714285714286 [2024-11-10 22:23:40,006 INFO L175 Difference]: Start difference. First operand has 196 places, 177 transitions, 828 flow. Second operand 4 states and 454 transitions. [2024-11-10 22:23:40,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 223 transitions, 1397 flow [2024-11-10 22:23:40,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 223 transitions, 1382 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:23:40,177 INFO L231 Difference]: Finished difference. Result has 195 places, 176 transitions, 831 flow [2024-11-10 22:23:40,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=831, PETRI_PLACES=195, PETRI_TRANSITIONS=176} [2024-11-10 22:23:40,178 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 44 predicate places. [2024-11-10 22:23:40,178 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 176 transitions, 831 flow [2024-11-10 22:23:40,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:40,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:40,178 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:40,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:40,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-10 22:23:40,379 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:40,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1246899198, now seen corresponding path program 1 times [2024-11-10 22:23:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43647675] [2024-11-10 22:23:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:40,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:40,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:40,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43647675] [2024-11-10 22:23:40,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43647675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:40,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862451762] [2024-11-10 22:23:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:40,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:40,474 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:23:40,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 22:23:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:40,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:23:40,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:40,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:40,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862451762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:40,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:40,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-11-10 22:23:40,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43379751] [2024-11-10 22:23:40,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:40,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:23:40,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:23:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:23:40,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:40,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 176 transitions, 831 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:40,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:40,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:40,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:42,500 INFO L124 PetriNetUnfolderBase]: 10367/20704 cut-off events. [2024-11-10 22:23:42,501 INFO L125 PetriNetUnfolderBase]: For 33691/34094 co-relation queries the response was YES. [2024-11-10 22:23:42,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56559 conditions, 20704 events. 10367/20704 cut-off events. For 33691/34094 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 178579 event pairs, 6695 based on Foata normal form. 553/21083 useless extension candidates. Maximal degree in co-relation 56403. Up to 13348 conditions per place. [2024-11-10 22:23:42,833 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 216 selfloop transitions, 10 changer transitions 88/367 dead transitions. [2024-11-10 22:23:42,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 367 transitions, 2487 flow [2024-11-10 22:23:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:23:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:23:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 774 transitions. [2024-11-10 22:23:42,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6318367346938776 [2024-11-10 22:23:42,835 INFO L175 Difference]: Start difference. First operand has 195 places, 176 transitions, 831 flow. Second operand 7 states and 774 transitions. [2024-11-10 22:23:42,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 367 transitions, 2487 flow [2024-11-10 22:23:42,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 367 transitions, 2453 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:23:42,980 INFO L231 Difference]: Finished difference. Result has 197 places, 175 transitions, 837 flow [2024-11-10 22:23:42,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=837, PETRI_PLACES=197, PETRI_TRANSITIONS=175} [2024-11-10 22:23:42,981 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 46 predicate places. [2024-11-10 22:23:42,981 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 175 transitions, 837 flow [2024-11-10 22:23:42,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:42,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:42,981 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:42,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-10 22:23:43,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-10 22:23:43,182 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:43,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1599750331, now seen corresponding path program 1 times [2024-11-10 22:23:43,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:43,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234912184] [2024-11-10 22:23:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:43,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:43,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:43,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234912184] [2024-11-10 22:23:43,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234912184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:43,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085906423] [2024-11-10 22:23:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:43,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:43,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:43,272 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:23:43,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 22:23:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:43,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:23:43,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:43,487 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:43,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085906423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:43,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:43,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-10 22:23:43,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568384693] [2024-11-10 22:23:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:43,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:43,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:43,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:23:43,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 175 [2024-11-10 22:23:43,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 175 transitions, 837 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:43,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:43,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 175 [2024-11-10 22:23:43,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:44,988 INFO L124 PetriNetUnfolderBase]: 9689/19590 cut-off events. [2024-11-10 22:23:44,989 INFO L125 PetriNetUnfolderBase]: For 34841/35383 co-relation queries the response was YES. [2024-11-10 22:23:45,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53710 conditions, 19590 events. 9689/19590 cut-off events. For 34841/35383 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 170421 event pairs, 6379 based on Foata normal form. 632/20040 useless extension candidates. Maximal degree in co-relation 53555. Up to 12772 conditions per place. [2024-11-10 22:23:45,110 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 162 selfloop transitions, 5 changer transitions 0/221 dead transitions. [2024-11-10 22:23:45,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 221 transitions, 1408 flow [2024-11-10 22:23:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:45,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:45,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2024-11-10 22:23:45,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6328571428571429 [2024-11-10 22:23:45,111 INFO L175 Difference]: Start difference. First operand has 197 places, 175 transitions, 837 flow. Second operand 4 states and 443 transitions. [2024-11-10 22:23:45,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 221 transitions, 1408 flow [2024-11-10 22:23:45,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 221 transitions, 1365 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-10 22:23:45,262 INFO L231 Difference]: Finished difference. Result has 194 places, 174 transitions, 818 flow [2024-11-10 22:23:45,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=818, PETRI_PLACES=194, PETRI_TRANSITIONS=174} [2024-11-10 22:23:45,263 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 43 predicate places. [2024-11-10 22:23:45,263 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 174 transitions, 818 flow [2024-11-10 22:23:45,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:45,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:45,263 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:45,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:45,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-10 22:23:45,464 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:45,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:45,464 INFO L85 PathProgramCache]: Analyzing trace with hash -415333692, now seen corresponding path program 1 times [2024-11-10 22:23:45,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:45,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64703286] [2024-11-10 22:23:45,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:45,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:45,529 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:45,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:45,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64703286] [2024-11-10 22:23:45,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64703286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:45,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:23:45,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:23:45,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997492636] [2024-11-10 22:23:45,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:45,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:23:45,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:45,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:23:45,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:23:45,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 175 [2024-11-10 22:23:45,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 174 transitions, 818 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:45,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:45,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 175 [2024-11-10 22:23:45,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:47,125 INFO L124 PetriNetUnfolderBase]: 9689/19218 cut-off events. [2024-11-10 22:23:47,125 INFO L125 PetriNetUnfolderBase]: For 33922/34568 co-relation queries the response was YES. [2024-11-10 22:23:47,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51969 conditions, 19218 events. 9689/19218 cut-off events. For 33922/34568 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 164498 event pairs, 5011 based on Foata normal form. 716/19789 useless extension candidates. Maximal degree in co-relation 51815. Up to 9873 conditions per place. [2024-11-10 22:23:47,209 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 212 selfloop transitions, 6 changer transitions 0/271 dead transitions. [2024-11-10 22:23:47,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 271 transitions, 1704 flow [2024-11-10 22:23:47,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:23:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:23:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2024-11-10 22:23:47,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7028571428571428 [2024-11-10 22:23:47,210 INFO L175 Difference]: Start difference. First operand has 194 places, 174 transitions, 818 flow. Second operand 4 states and 492 transitions. [2024-11-10 22:23:47,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 271 transitions, 1704 flow [2024-11-10 22:23:47,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 271 transitions, 1692 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:23:47,330 INFO L231 Difference]: Finished difference. Result has 192 places, 173 transitions, 814 flow [2024-11-10 22:23:47,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=814, PETRI_PLACES=192, PETRI_TRANSITIONS=173} [2024-11-10 22:23:47,331 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 41 predicate places. [2024-11-10 22:23:47,331 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 173 transitions, 814 flow [2024-11-10 22:23:47,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:47,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:47,331 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:47,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-10 22:23:47,331 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:47,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:47,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1947347776, now seen corresponding path program 1 times [2024-11-10 22:23:47,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:47,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478809564] [2024-11-10 22:23:47,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:47,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:47,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:47,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478809564] [2024-11-10 22:23:47,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478809564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:47,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651560346] [2024-11-10 22:23:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:47,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:47,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:47,438 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:23:47,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 22:23:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:47,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:23:47,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:47,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:47,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651560346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:47,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:47,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-11-10 22:23:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551456835] [2024-11-10 22:23:47,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:47,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:23:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:47,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:23:47,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:23:47,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:47,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 173 transitions, 814 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:47,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:47,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:47,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:49,296 INFO L124 PetriNetUnfolderBase]: 10033/19824 cut-off events. [2024-11-10 22:23:49,296 INFO L125 PetriNetUnfolderBase]: For 33259/33729 co-relation queries the response was YES. [2024-11-10 22:23:49,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53651 conditions, 19824 events. 10033/19824 cut-off events. For 33259/33729 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 168649 event pairs, 6987 based on Foata normal form. 666/20325 useless extension candidates. Maximal degree in co-relation 53499. Up to 13876 conditions per place. [2024-11-10 22:23:49,413 INFO L140 encePairwiseOnDemand]: 168/175 looper letters, 257 selfloop transitions, 7 changer transitions 0/313 dead transitions. [2024-11-10 22:23:49,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 313 transitions, 2000 flow [2024-11-10 22:23:49,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:23:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:23:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 658 transitions. [2024-11-10 22:23:49,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2024-11-10 22:23:49,415 INFO L175 Difference]: Start difference. First operand has 192 places, 173 transitions, 814 flow. Second operand 6 states and 658 transitions. [2024-11-10 22:23:49,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 313 transitions, 2000 flow [2024-11-10 22:23:49,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 313 transitions, 1958 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-10 22:23:49,542 INFO L231 Difference]: Finished difference. Result has 189 places, 171 transitions, 772 flow [2024-11-10 22:23:49,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=772, PETRI_PLACES=189, PETRI_TRANSITIONS=171} [2024-11-10 22:23:49,543 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 38 predicate places. [2024-11-10 22:23:49,543 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 171 transitions, 772 flow [2024-11-10 22:23:49,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:49,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:49,544 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:49,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:49,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-10 22:23:49,744 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-11-10 22:23:49,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:49,745 INFO L85 PathProgramCache]: Analyzing trace with hash 238240394, now seen corresponding path program 1 times [2024-11-10 22:23:49,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:49,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851593263] [2024-11-10 22:23:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:49,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 22:23:49,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851593263] [2024-11-10 22:23:49,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851593263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415058715] [2024-11-10 22:23:49,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:49,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:49,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:49,835 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:23:49,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 22:23:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:49,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:23:49,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-10 22:23:50,064 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:23:50,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415058715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:23:50,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:23:50,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-11-10 22:23:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751467387] [2024-11-10 22:23:50,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:23:50,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:23:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:23:50,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:23:50,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 175 [2024-11-10 22:23:50,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 171 transitions, 772 flow. Second operand has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:50,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:50,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 175 [2024-11-10 22:23:50,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:51,786 INFO L124 PetriNetUnfolderBase]: 10377/19962 cut-off events. [2024-11-10 22:23:51,786 INFO L125 PetriNetUnfolderBase]: For 27713/28189 co-relation queries the response was YES. [2024-11-10 22:23:51,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52755 conditions, 19962 events. 10377/19962 cut-off events. For 27713/28189 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 165826 event pairs, 6683 based on Foata normal form. 666/20462 useless extension candidates. Maximal degree in co-relation 52605. Up to 13324 conditions per place. [2024-11-10 22:23:51,864 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 0 selfloop transitions, 0 changer transitions 358/358 dead transitions. [2024-11-10 22:23:51,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 358 transitions, 2280 flow [2024-11-10 22:23:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:23:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:23:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 770 transitions. [2024-11-10 22:23:51,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-10 22:23:51,866 INFO L175 Difference]: Start difference. First operand has 189 places, 171 transitions, 772 flow. Second operand 7 states and 770 transitions. [2024-11-10 22:23:51,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 358 transitions, 2280 flow [2024-11-10 22:23:51,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 358 transitions, 2267 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:23:51,968 INFO L231 Difference]: Finished difference. Result has 190 places, 0 transitions, 0 flow [2024-11-10 22:23:51,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=190, PETRI_TRANSITIONS=0} [2024-11-10 22:23:51,969 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 39 predicate places. [2024-11-10 22:23:51,969 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 0 transitions, 0 flow [2024-11-10 22:23:51,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:23:51,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 80 remaining) [2024-11-10 22:23:51,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 80 remaining) [2024-11-10 22:23:51,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 80 remaining) [2024-11-10 22:23:51,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 80 remaining) [2024-11-10 22:23:51,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 80 remaining) [2024-11-10 22:23:51,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 80 remaining) [2024-11-10 22:23:51,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-10 22:23:52,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:52,177 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:52,181 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:23:52,182 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:23:52,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:23:52 BasicIcfg [2024-11-10 22:23:52,185 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:23:52,185 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:23:52,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:23:52,186 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:23:52,186 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:33" (3/4) ... [2024-11-10 22:23:52,187 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:23:52,189 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:23:52,189 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:23:52,197 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2024-11-10 22:23:52,197 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-10 22:23:52,197 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-11-10 22:23:52,198 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 22:23:52,265 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:23:52,265 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:23:52,265 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:23:52,266 INFO L158 Benchmark]: Toolchain (without parser) took 80288.47ms. Allocated memory was 127.9MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 99.0MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-10 22:23:52,266 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 127.9MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:23:52,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.71ms. Allocated memory was 127.9MB in the beginning and 201.3MB in the end (delta: 73.4MB). Free memory was 98.8MB in the beginning and 159.6MB in the end (delta: -60.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-11-10 22:23:52,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.49ms. Allocated memory is still 201.3MB. Free memory was 159.6MB in the beginning and 156.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:23:52,270 INFO L158 Benchmark]: Boogie Preprocessor took 54.43ms. Allocated memory is still 201.3MB. Free memory was 156.5MB in the beginning and 152.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:23:52,270 INFO L158 Benchmark]: IcfgBuilder took 1123.37ms. Allocated memory is still 201.3MB. Free memory was 152.3MB in the beginning and 129.7MB in the end (delta: 22.6MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2024-11-10 22:23:52,270 INFO L158 Benchmark]: TraceAbstraction took 78704.39ms. Allocated memory was 201.3MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 128.7MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2024-11-10 22:23:52,270 INFO L158 Benchmark]: Witness Printer took 79.86ms. Allocated memory is still 4.5GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 22:23:52,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 127.9MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.71ms. Allocated memory was 127.9MB in the beginning and 201.3MB in the end (delta: 73.4MB). Free memory was 98.8MB in the beginning and 159.6MB in the end (delta: -60.8MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.49ms. Allocated memory is still 201.3MB. Free memory was 159.6MB in the beginning and 156.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.43ms. Allocated memory is still 201.3MB. Free memory was 156.5MB in the beginning and 152.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1123.37ms. Allocated memory is still 201.3MB. Free memory was 152.3MB in the beginning and 129.7MB in the end (delta: 22.6MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. * TraceAbstraction took 78704.39ms. Allocated memory was 201.3MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 128.7MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 79.86ms. Allocated memory is still 4.5GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: 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 5 procedures, 272 locations, 80 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: 78.6s, OverallIterations: 41, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 69.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5929 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5122 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 370 mSDsCounter, 441 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14540 IncrementalHoareTripleChecker+Invalid, 14981 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 441 mSolverCounterUnsat, 235 mSDtfsCounter, 14540 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1040 GetRequests, 798 SyntacticMatches, 5 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=937occurred in iteration=28, InterpolantAutomatonStates: 211, 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: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2823 NumberOfCodeBlocks, 2783 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 2857 ConstructedInterpolants, 0 QuantifiedInterpolants, 6851 SizeOfPredicates, 37 NumberOfNonLiveVariables, 3690 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 59 InterpolantComputations, 37 PerfectInterpolantSequences, 4220/4386 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 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:23:52,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE