./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:58:22,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:58:22,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:58:22,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:58:22,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:58:22,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:58:22,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:58:22,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:58:22,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:58:22,512 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:58:22,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:58:22,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:58:22,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:58:22,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:58:22,516 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:58:22,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:58:22,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:58:22,517 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:58:22,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:58:22,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:58:22,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:58:22,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:58:22,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:58:22,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:58:22,521 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:58:22,522 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:58:22,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:58:22,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:58:22,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:58:22,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:58:22,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:58:22,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:58:22,524 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:58:22,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:58:22,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:58:22,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:58:22,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:58:22,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:58:22,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:58:22,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:58:22,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:58:22,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:58:22,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:58:22,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:58:22,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-19 13:58:22,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:58:22,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:58:22,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:58:22,833 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:58:22,834 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:58:22,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-19 13:58:24,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:58:24,511 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:58:24,512 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-19 13:58:24,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b51fa43d/abe1044007474b199e7d01cb16bb1148/FLAGaf089472a [2024-11-19 13:58:24,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b51fa43d/abe1044007474b199e7d01cb16bb1148 [2024-11-19 13:58:24,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:58:24,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:58:24,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:58:24,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:58:24,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:58:24,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:58:24" (1/1) ... [2024-11-19 13:58:24,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4cd0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:24, skipping insertion in model container [2024-11-19 13:58:24,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:58:24" (1/1) ... [2024-11-19 13:58:24,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:58:24,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:58:24,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:58:25,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:58:25,074 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:58:25,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25 WrapperNode [2024-11-19 13:58:25,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:58:25,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:58:25,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:58:25,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:58:25,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,135 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 129 [2024-11-19 13:58:25,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:58:25,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:58:25,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:58:25,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:58:25,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,170 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-19 13:58:25,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:58:25,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:58:25,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:58:25,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:58:25,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (1/1) ... [2024-11-19 13:58:25,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:58:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:25,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 13:58:25,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 13:58:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:58:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:58:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-19 13:58:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-19 13:58:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:58:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:58:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 13:58:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:58:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:58:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:58:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 13:58:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:58:25,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:58:25,289 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:58:25,413 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:58:25,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:58:25,648 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:58:25,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:58:25,839 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:58:25,840 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 13:58:25,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:25 BoogieIcfgContainer [2024-11-19 13:58:25,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:58:25,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:58:25,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:58:25,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:58:25,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:58:24" (1/3) ... [2024-11-19 13:58:25,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678a3a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:58:25, skipping insertion in model container [2024-11-19 13:58:25,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:58:25" (2/3) ... [2024-11-19 13:58:25,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678a3a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:58:25, skipping insertion in model container [2024-11-19 13:58:25,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:58:25" (3/3) ... [2024-11-19 13:58:25,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-19 13:58:25,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:58:25,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 13:58:25,867 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:58:25,918 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 13:58:25,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 41 transitions, 86 flow [2024-11-19 13:58:25,992 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-11-19 13:58:25,992 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:58:25,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 6/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-19 13:58:25,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 41 transitions, 86 flow [2024-11-19 13:58:26,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 40 transitions, 83 flow [2024-11-19 13:58:26,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:58:26,024 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;@4d5da5da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:58:26,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-19 13:58:26,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:58:26,036 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2024-11-19 13:58:26,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:58:26,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:26,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:26,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:26,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:26,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1085093689, now seen corresponding path program 1 times [2024-11-19 13:58:26,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:26,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713346917] [2024-11-19 13:58:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:26,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:26,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:26,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713346917] [2024-11-19 13:58:26,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713346917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:26,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:26,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:26,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625561736] [2024-11-19 13:58:26,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:26,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:58:26,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:26,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:58:26,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:58:26,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:26,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:26,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:26,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:26,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:27,052 INFO L124 PetriNetUnfolderBase]: 363/738 cut-off events. [2024-11-19 13:58:27,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:58:27,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 738 events. 363/738 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3623 event pairs, 35 based on Foata normal form. 64/658 useless extension candidates. Maximal degree in co-relation 1367. Up to 352 conditions per place. [2024-11-19 13:58:27,065 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 72 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2024-11-19 13:58:27,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 93 transitions, 351 flow [2024-11-19 13:58:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:58:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:58:27,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-19 13:58:27,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7032520325203252 [2024-11-19 13:58:27,083 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 83 flow. Second operand 6 states and 173 transitions. [2024-11-19 13:58:27,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 93 transitions, 351 flow [2024-11-19 13:58:27,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 93 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:58:27,094 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 148 flow [2024-11-19 13:58:27,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-11-19 13:58:27,102 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2024-11-19 13:58:27,103 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 148 flow [2024-11-19 13:58:27,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:27,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:27,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:27,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:58:27,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:27,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:27,105 INFO L85 PathProgramCache]: Analyzing trace with hash 902029017, now seen corresponding path program 1 times [2024-11-19 13:58:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361840538] [2024-11-19 13:58:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:27,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:27,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361840538] [2024-11-19 13:58:27,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361840538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:27,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:27,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:58:27,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503125750] [2024-11-19 13:58:27,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:27,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:58:27,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:27,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:58:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:58:27,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-19 13:58:27,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:27,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:27,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-19 13:58:27,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:27,572 INFO L124 PetriNetUnfolderBase]: 298/648 cut-off events. [2024-11-19 13:58:27,573 INFO L125 PetriNetUnfolderBase]: For 135/139 co-relation queries the response was YES. [2024-11-19 13:58:27,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 648 events. 298/648 cut-off events. For 135/139 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3153 event pairs, 26 based on Foata normal form. 22/593 useless extension candidates. Maximal degree in co-relation 1386. Up to 378 conditions per place. [2024-11-19 13:58:27,582 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 66 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-19 13:58:27,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 90 transitions, 389 flow [2024-11-19 13:58:27,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:58:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:58:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-19 13:58:27,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6707317073170732 [2024-11-19 13:58:27,587 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 148 flow. Second operand 6 states and 165 transitions. [2024-11-19 13:58:27,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 90 transitions, 389 flow [2024-11-19 13:58:27,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 90 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 13:58:27,594 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 192 flow [2024-11-19 13:58:27,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-11-19 13:58:27,596 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-19 13:58:27,596 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 192 flow [2024-11-19 13:58:27,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:27,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:27,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:27,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 13:58:27,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:27,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:27,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2107583250, now seen corresponding path program 1 times [2024-11-19 13:58:27,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045594495] [2024-11-19 13:58:27,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:27,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:27,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045594495] [2024-11-19 13:58:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045594495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:27,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:27,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:58:27,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796583460] [2024-11-19 13:58:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:27,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:58:27,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:27,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:58:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:58:27,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-19 13:58:27,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:27,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:27,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-19 13:58:27,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:28,006 INFO L124 PetriNetUnfolderBase]: 467/992 cut-off events. [2024-11-19 13:58:28,007 INFO L125 PetriNetUnfolderBase]: For 570/585 co-relation queries the response was YES. [2024-11-19 13:58:28,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 992 events. 467/992 cut-off events. For 570/585 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5319 event pairs, 95 based on Foata normal form. 32/945 useless extension candidates. Maximal degree in co-relation 2372. Up to 491 conditions per place. [2024-11-19 13:58:28,014 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 93 selfloop transitions, 20 changer transitions 0/124 dead transitions. [2024-11-19 13:58:28,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 124 transitions, 745 flow [2024-11-19 13:58:28,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:58:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:58:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-19 13:58:28,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6300813008130082 [2024-11-19 13:58:28,017 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 192 flow. Second operand 6 states and 155 transitions. [2024-11-19 13:58:28,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 124 transitions, 745 flow [2024-11-19 13:58:28,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 124 transitions, 719 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:28,024 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 351 flow [2024-11-19 13:58:28,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-11-19 13:58:28,026 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-19 13:58:28,026 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 351 flow [2024-11-19 13:58:28,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:28,027 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:28,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:58:28,028 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:28,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash -910570875, now seen corresponding path program 1 times [2024-11-19 13:58:28,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:28,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70104649] [2024-11-19 13:58:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:28,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:28,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:28,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70104649] [2024-11-19 13:58:28,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70104649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:28,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:28,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377287827] [2024-11-19 13:58:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:28,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:28,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:28,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:28,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-19 13:58:28,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:28,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-19 13:58:28,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:28,326 INFO L124 PetriNetUnfolderBase]: 335/756 cut-off events. [2024-11-19 13:58:28,327 INFO L125 PetriNetUnfolderBase]: For 759/801 co-relation queries the response was YES. [2024-11-19 13:58:28,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 756 events. 335/756 cut-off events. For 759/801 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3727 event pairs, 111 based on Foata normal form. 35/765 useless extension candidates. Maximal degree in co-relation 2099. Up to 454 conditions per place. [2024-11-19 13:58:28,333 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 57 selfloop transitions, 11 changer transitions 3/86 dead transitions. [2024-11-19 13:58:28,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 555 flow [2024-11-19 13:58:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:58:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 13:58:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-19 13:58:28,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-19 13:58:28,335 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 351 flow. Second operand 5 states and 130 transitions. [2024-11-19 13:58:28,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 555 flow [2024-11-19 13:58:28,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 533 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:28,341 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 365 flow [2024-11-19 13:58:28,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-19 13:58:28,342 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2024-11-19 13:58:28,342 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 365 flow [2024-11-19 13:58:28,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:28,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:28,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:58:28,343 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:28,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -731723231, now seen corresponding path program 1 times [2024-11-19 13:58:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148982937] [2024-11-19 13:58:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:28,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:28,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:28,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148982937] [2024-11-19 13:58:28,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148982937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:28,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:28,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:28,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392352169] [2024-11-19 13:58:28,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:28,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:28,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:28,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:28,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:28,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:28,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:28,585 INFO L124 PetriNetUnfolderBase]: 398/863 cut-off events. [2024-11-19 13:58:28,585 INFO L125 PetriNetUnfolderBase]: For 1267/1349 co-relation queries the response was YES. [2024-11-19 13:58:28,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 863 events. 398/863 cut-off events. For 1267/1349 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4481 event pairs, 35 based on Foata normal form. 80/911 useless extension candidates. Maximal degree in co-relation 2527. Up to 559 conditions per place. [2024-11-19 13:58:28,593 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 84 selfloop transitions, 3 changer transitions 1/101 dead transitions. [2024-11-19 13:58:28,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 717 flow [2024-11-19 13:58:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-19 13:58:28,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.676829268292683 [2024-11-19 13:58:28,595 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 365 flow. Second operand 4 states and 111 transitions. [2024-11-19 13:58:28,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 717 flow [2024-11-19 13:58:28,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 715 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-19 13:58:28,601 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 383 flow [2024-11-19 13:58:28,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2024-11-19 13:58:28,603 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-19 13:58:28,603 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 383 flow [2024-11-19 13:58:28,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:28,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:28,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:58:28,604 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:28,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash -84141361, now seen corresponding path program 1 times [2024-11-19 13:58:28,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:28,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900794873] [2024-11-19 13:58:28,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:28,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:28,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:28,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900794873] [2024-11-19 13:58:28,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900794873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:28,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:28,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 13:58:28,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393086862] [2024-11-19 13:58:28,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:28,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 13:58:28,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:28,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 13:58:28,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 13:58:28,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-19 13:58:28,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:28,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:28,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-19 13:58:28,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:29,019 INFO L124 PetriNetUnfolderBase]: 367/867 cut-off events. [2024-11-19 13:58:29,020 INFO L125 PetriNetUnfolderBase]: For 1185/1206 co-relation queries the response was YES. [2024-11-19 13:58:29,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 867 events. 367/867 cut-off events. For 1185/1206 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4675 event pairs, 177 based on Foata normal form. 7/869 useless extension candidates. Maximal degree in co-relation 2569. Up to 609 conditions per place. [2024-11-19 13:58:29,027 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 57 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-11-19 13:58:29,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 572 flow [2024-11-19 13:58:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 13:58:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 13:58:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-11-19 13:58:29,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2024-11-19 13:58:29,028 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 383 flow. Second operand 5 states and 117 transitions. [2024-11-19 13:58:29,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 572 flow [2024-11-19 13:58:29,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 559 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:29,035 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 400 flow [2024-11-19 13:58:29,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2024-11-19 13:58:29,036 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 35 predicate places. [2024-11-19 13:58:29,036 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 400 flow [2024-11-19 13:58:29,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:29,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:29,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 13:58:29,037 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:29,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash 22454703, now seen corresponding path program 2 times [2024-11-19 13:58:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:29,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872310258] [2024-11-19 13:58:29,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:29,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:29,051 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:29,051 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:29,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:29,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872310258] [2024-11-19 13:58:29,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872310258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:29,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:29,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421808286] [2024-11-19 13:58:29,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:29,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:58:29,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:29,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:58:29,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:29,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-19 13:58:29,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 400 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:29,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-19 13:58:29,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:29,692 INFO L124 PetriNetUnfolderBase]: 400/942 cut-off events. [2024-11-19 13:58:29,693 INFO L125 PetriNetUnfolderBase]: For 1608/1629 co-relation queries the response was YES. [2024-11-19 13:58:29,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2974 conditions, 942 events. 400/942 cut-off events. For 1608/1629 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5184 event pairs, 182 based on Foata normal form. 13/950 useless extension candidates. Maximal degree in co-relation 2943. Up to 630 conditions per place. [2024-11-19 13:58:29,701 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 68 selfloop transitions, 20 changer transitions 1/103 dead transitions. [2024-11-19 13:58:29,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 819 flow [2024-11-19 13:58:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:58:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:58:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-19 13:58:29,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5073170731707317 [2024-11-19 13:58:29,703 INFO L175 Difference]: Start difference. First operand has 73 places, 66 transitions, 400 flow. Second operand 10 states and 208 transitions. [2024-11-19 13:58:29,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 819 flow [2024-11-19 13:58:29,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 787 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-19 13:58:29,710 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 578 flow [2024-11-19 13:58:29,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=578, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-11-19 13:58:29,711 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 46 predicate places. [2024-11-19 13:58:29,711 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 578 flow [2024-11-19 13:58:29,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:29,712 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:29,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 13:58:29,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:29,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash 531534455, now seen corresponding path program 3 times [2024-11-19 13:58:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:29,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701427650] [2024-11-19 13:58:29,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:29,723 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:29,724 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701427650] [2024-11-19 13:58:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701427650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:29,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:29,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 13:58:29,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51979654] [2024-11-19 13:58:29,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:29,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:58:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:58:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:29,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-19 13:58:29,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 578 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:29,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:29,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-19 13:58:29,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:30,235 INFO L124 PetriNetUnfolderBase]: 393/935 cut-off events. [2024-11-19 13:58:30,235 INFO L125 PetriNetUnfolderBase]: For 2075/2092 co-relation queries the response was YES. [2024-11-19 13:58:30,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3139 conditions, 935 events. 393/935 cut-off events. For 2075/2092 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4822 event pairs, 154 based on Foata normal form. 12/943 useless extension candidates. Maximal degree in co-relation 3103. Up to 605 conditions per place. [2024-11-19 13:58:30,244 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 71 selfloop transitions, 23 changer transitions 1/109 dead transitions. [2024-11-19 13:58:30,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 959 flow [2024-11-19 13:58:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:58:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:58:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-11-19 13:58:30,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-11-19 13:58:30,246 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 578 flow. Second operand 8 states and 176 transitions. [2024-11-19 13:58:30,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 959 flow [2024-11-19 13:58:30,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 913 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:30,255 INFO L231 Difference]: Finished difference. Result has 91 places, 85 transitions, 697 flow [2024-11-19 13:58:30,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=91, PETRI_TRANSITIONS=85} [2024-11-19 13:58:30,257 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2024-11-19 13:58:30,257 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 85 transitions, 697 flow [2024-11-19 13:58:30,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:30,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:30,260 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:30,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 13:58:30,260 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:30,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1248191038, now seen corresponding path program 1 times [2024-11-19 13:58:30,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552706447] [2024-11-19 13:58:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:30,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:30,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552706447] [2024-11-19 13:58:30,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552706447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:30,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597575250] [2024-11-19 13:58:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:30,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:30,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:30,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:58:30,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:58:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:30,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 13:58:30,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:30,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 13:58:30,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 13:58:30,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 13:58:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:30,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:58:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:31,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597575250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:58:31,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:58:31,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2024-11-19 13:58:31,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033876524] [2024-11-19 13:58:31,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:58:31,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 13:58:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:31,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 13:58:31,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-19 13:58:31,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-19 13:58:31,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 85 transitions, 697 flow. Second operand has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:31,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:31,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-19 13:58:31,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:32,717 INFO L124 PetriNetUnfolderBase]: 1416/2974 cut-off events. [2024-11-19 13:58:32,717 INFO L125 PetriNetUnfolderBase]: For 5824/6039 co-relation queries the response was YES. [2024-11-19 13:58:32,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 2974 events. 1416/2974 cut-off events. For 5824/6039 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17623 event pairs, 108 based on Foata normal form. 198/3153 useless extension candidates. Maximal degree in co-relation 9733. Up to 576 conditions per place. [2024-11-19 13:58:32,746 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 348 selfloop transitions, 102 changer transitions 0/465 dead transitions. [2024-11-19 13:58:32,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 465 transitions, 3915 flow [2024-11-19 13:58:32,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 13:58:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 13:58:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 543 transitions. [2024-11-19 13:58:32,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6019955654101996 [2024-11-19 13:58:32,749 INFO L175 Difference]: Start difference. First operand has 91 places, 85 transitions, 697 flow. Second operand 22 states and 543 transitions. [2024-11-19 13:58:32,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 465 transitions, 3915 flow [2024-11-19 13:58:32,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 465 transitions, 3776 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:32,771 INFO L231 Difference]: Finished difference. Result has 117 places, 179 transitions, 1724 flow [2024-11-19 13:58:32,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1724, PETRI_PLACES=117, PETRI_TRANSITIONS=179} [2024-11-19 13:58:32,773 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 79 predicate places. [2024-11-19 13:58:32,773 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 179 transitions, 1724 flow [2024-11-19 13:58:32,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:32,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:32,773 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:32,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 13:58:32,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:32,974 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:32,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:32,975 INFO L85 PathProgramCache]: Analyzing trace with hash -268526372, now seen corresponding path program 1 times [2024-11-19 13:58:32,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:32,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319835516] [2024-11-19 13:58:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:32,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:33,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:33,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:33,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319835516] [2024-11-19 13:58:33,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319835516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:33,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:33,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 13:58:33,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019985202] [2024-11-19 13:58:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:33,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:58:33,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:58:33,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:58:33,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:33,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 179 transitions, 1724 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:33,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:33,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:33,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:34,363 INFO L124 PetriNetUnfolderBase]: 2848/5971 cut-off events. [2024-11-19 13:58:34,364 INFO L125 PetriNetUnfolderBase]: For 16881/17232 co-relation queries the response was YES. [2024-11-19 13:58:34,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21920 conditions, 5971 events. 2848/5971 cut-off events. For 16881/17232 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 41094 event pairs, 330 based on Foata normal form. 329/6280 useless extension candidates. Maximal degree in co-relation 21871. Up to 1268 conditions per place. [2024-11-19 13:58:34,479 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 322 selfloop transitions, 208 changer transitions 0/548 dead transitions. [2024-11-19 13:58:34,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 548 transitions, 5906 flow [2024-11-19 13:58:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:58:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:58:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-19 13:58:34,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-11-19 13:58:34,483 INFO L175 Difference]: Start difference. First operand has 117 places, 179 transitions, 1724 flow. Second operand 10 states and 256 transitions. [2024-11-19 13:58:34,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 548 transitions, 5906 flow [2024-11-19 13:58:34,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 548 transitions, 5221 flow, removed 307 selfloop flow, removed 6 redundant places. [2024-11-19 13:58:34,572 INFO L231 Difference]: Finished difference. Result has 127 places, 367 transitions, 3991 flow [2024-11-19 13:58:34,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3991, PETRI_PLACES=127, PETRI_TRANSITIONS=367} [2024-11-19 13:58:34,572 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2024-11-19 13:58:34,573 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 367 transitions, 3991 flow [2024-11-19 13:58:34,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:34,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:34,573 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:34,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:58:34,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:34,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:34,574 INFO L85 PathProgramCache]: Analyzing trace with hash 273094066, now seen corresponding path program 2 times [2024-11-19 13:58:34,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:34,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969402730] [2024-11-19 13:58:34,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:58:34,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:34,584 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:58:34,584 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:34,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:34,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969402730] [2024-11-19 13:58:34,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969402730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:34,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 13:58:34,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749575347] [2024-11-19 13:58:34,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:34,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 13:58:34,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:34,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 13:58:34,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:34,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-19 13:58:34,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 367 transitions, 3991 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:34,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:34,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-19 13:58:34,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:36,622 INFO L124 PetriNetUnfolderBase]: 4121/8417 cut-off events. [2024-11-19 13:58:36,623 INFO L125 PetriNetUnfolderBase]: For 36519/36916 co-relation queries the response was YES. [2024-11-19 13:58:36,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34863 conditions, 8417 events. 4121/8417 cut-off events. For 36519/36916 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 60730 event pairs, 929 based on Foata normal form. 377/8747 useless extension candidates. Maximal degree in co-relation 34810. Up to 4476 conditions per place. [2024-11-19 13:58:36,709 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 480 selfloop transitions, 205 changer transitions 1/700 dead transitions. [2024-11-19 13:58:36,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 700 transitions, 8359 flow [2024-11-19 13:58:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 13:58:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 13:58:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 360 transitions. [2024-11-19 13:58:36,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-19 13:58:36,712 INFO L175 Difference]: Start difference. First operand has 127 places, 367 transitions, 3991 flow. Second operand 18 states and 360 transitions. [2024-11-19 13:58:36,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 700 transitions, 8359 flow [2024-11-19 13:58:36,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 700 transitions, 8333 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-11-19 13:58:36,921 INFO L231 Difference]: Finished difference. Result has 158 places, 527 transitions, 6771 flow [2024-11-19 13:58:36,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3969, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6771, PETRI_PLACES=158, PETRI_TRANSITIONS=527} [2024-11-19 13:58:36,922 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 120 predicate places. [2024-11-19 13:58:36,922 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 527 transitions, 6771 flow [2024-11-19 13:58:36,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:36,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:36,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:36,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 13:58:36,923 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:36,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:36,924 INFO L85 PathProgramCache]: Analyzing trace with hash 766686372, now seen corresponding path program 3 times [2024-11-19 13:58:36,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:36,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252618550] [2024-11-19 13:58:36,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 13:58:36,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:36,936 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 13:58:36,936 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:58:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:37,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252618550] [2024-11-19 13:58:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252618550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:37,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:37,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 13:58:37,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298314067] [2024-11-19 13:58:37,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:37,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:58:37,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:58:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:58:37,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:37,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 527 transitions, 6771 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:37,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:37,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:37,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:38,802 INFO L124 PetriNetUnfolderBase]: 3546/7619 cut-off events. [2024-11-19 13:58:38,802 INFO L125 PetriNetUnfolderBase]: For 53282/53712 co-relation queries the response was YES. [2024-11-19 13:58:38,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34368 conditions, 7619 events. 3546/7619 cut-off events. For 53282/53712 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 55527 event pairs, 670 based on Foata normal form. 517/8077 useless extension candidates. Maximal degree in co-relation 34299. Up to 3450 conditions per place. [2024-11-19 13:58:38,878 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 220 selfloop transitions, 397 changer transitions 1/636 dead transitions. [2024-11-19 13:58:38,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 636 transitions, 9053 flow [2024-11-19 13:58:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 13:58:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 13:58:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-11-19 13:58:38,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-19 13:58:38,880 INFO L175 Difference]: Start difference. First operand has 158 places, 527 transitions, 6771 flow. Second operand 8 states and 164 transitions. [2024-11-19 13:58:38,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 636 transitions, 9053 flow [2024-11-19 13:58:39,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 636 transitions, 8663 flow, removed 57 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:39,156 INFO L231 Difference]: Finished difference. Result has 160 places, 577 transitions, 7671 flow [2024-11-19 13:58:39,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6383, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7671, PETRI_PLACES=160, PETRI_TRANSITIONS=577} [2024-11-19 13:58:39,157 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2024-11-19 13:58:39,158 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 577 transitions, 7671 flow [2024-11-19 13:58:39,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:39,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:39,158 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:39,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:58:39,158 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:39,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:39,159 INFO L85 PathProgramCache]: Analyzing trace with hash -39216106, now seen corresponding path program 1 times [2024-11-19 13:58:39,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:39,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89762064] [2024-11-19 13:58:39,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:39,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 13:58:39,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:39,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89762064] [2024-11-19 13:58:39,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89762064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:39,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:58:39,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:58:39,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700303511] [2024-11-19 13:58:39,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:58:39,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:58:39,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:58:39,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:39,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 577 transitions, 7671 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:39,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:39,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:39,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:40,602 INFO L124 PetriNetUnfolderBase]: 3654/7688 cut-off events. [2024-11-19 13:58:40,603 INFO L125 PetriNetUnfolderBase]: For 53516/53891 co-relation queries the response was YES. [2024-11-19 13:58:40,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36513 conditions, 7688 events. 3654/7688 cut-off events. For 53516/53891 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 55559 event pairs, 826 based on Foata normal form. 522/8123 useless extension candidates. Maximal degree in co-relation 36445. Up to 3652 conditions per place. [2024-11-19 13:58:40,671 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 546 selfloop transitions, 138 changer transitions 0/706 dead transitions. [2024-11-19 13:58:40,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 706 transitions, 10698 flow [2024-11-19 13:58:40,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:58:40,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:58:40,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-19 13:58:40,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-11-19 13:58:40,673 INFO L175 Difference]: Start difference. First operand has 160 places, 577 transitions, 7671 flow. Second operand 4 states and 107 transitions. [2024-11-19 13:58:40,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 706 transitions, 10698 flow [2024-11-19 13:58:40,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 706 transitions, 10468 flow, removed 86 selfloop flow, removed 2 redundant places. [2024-11-19 13:58:40,899 INFO L231 Difference]: Finished difference. Result has 163 places, 587 transitions, 8221 flow [2024-11-19 13:58:40,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7178, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=8221, PETRI_PLACES=163, PETRI_TRANSITIONS=587} [2024-11-19 13:58:40,900 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2024-11-19 13:58:40,900 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 587 transitions, 8221 flow [2024-11-19 13:58:40,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:40,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:40,900 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:40,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:58:40,901 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:40,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1215700716, now seen corresponding path program 1 times [2024-11-19 13:58:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:40,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788790114] [2024-11-19 13:58:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:40,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:40,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788790114] [2024-11-19 13:58:40,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788790114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592985393] [2024-11-19 13:58:40,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:40,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:40,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:40,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:58:40,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:58:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:41,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:58:41,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:41,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:58:41,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592985393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:58:41,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:58:41,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 13:58:41,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074086297] [2024-11-19 13:58:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:58:41,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:58:41,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:41,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:58:41,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 13:58:41,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:41,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 587 transitions, 8221 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:41,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:41,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:41,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:43,096 INFO L124 PetriNetUnfolderBase]: 3753/7720 cut-off events. [2024-11-19 13:58:43,096 INFO L125 PetriNetUnfolderBase]: For 59559/59908 co-relation queries the response was YES. [2024-11-19 13:58:43,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38603 conditions, 7720 events. 3753/7720 cut-off events. For 59559/59908 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 54819 event pairs, 955 based on Foata normal form. 486/7998 useless extension candidates. Maximal degree in co-relation 38534. Up to 4613 conditions per place. [2024-11-19 13:58:43,163 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 562 selfloop transitions, 126 changer transitions 63/774 dead transitions. [2024-11-19 13:58:43,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 774 transitions, 12022 flow [2024-11-19 13:58:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 13:58:43,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 13:58:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-19 13:58:43,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-19 13:58:43,164 INFO L175 Difference]: Start difference. First operand has 163 places, 587 transitions, 8221 flow. Second operand 6 states and 156 transitions. [2024-11-19 13:58:43,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 774 transitions, 12022 flow [2024-11-19 13:58:43,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 774 transitions, 11998 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-19 13:58:43,380 INFO L231 Difference]: Finished difference. Result has 167 places, 586 transitions, 8445 flow [2024-11-19 13:58:43,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8193, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8445, PETRI_PLACES=167, PETRI_TRANSITIONS=586} [2024-11-19 13:58:43,381 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2024-11-19 13:58:43,381 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 586 transitions, 8445 flow [2024-11-19 13:58:43,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:43,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:43,381 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:43,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:58:43,582 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,SelfDestructingSolverStorable13 [2024-11-19 13:58:43,582 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:43,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:43,583 INFO L85 PathProgramCache]: Analyzing trace with hash 967983861, now seen corresponding path program 1 times [2024-11-19 13:58:43,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:43,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062333091] [2024-11-19 13:58:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:43,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:43,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:43,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062333091] [2024-11-19 13:58:43,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062333091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:43,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133612008] [2024-11-19 13:58:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:43,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:43,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:58:43,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:58:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:43,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 13:58:43,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:43,774 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:58:43,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:43,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133612008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:58:43,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:58:43,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 13:58:43,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93858711] [2024-11-19 13:58:43,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:58:43,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 13:58:43,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:43,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 13:58:43,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:58:43,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-19 13:58:43,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 586 transitions, 8445 flow. Second operand has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:43,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:43,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-19 13:58:43,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:58:48,801 INFO L124 PetriNetUnfolderBase]: 11870/24045 cut-off events. [2024-11-19 13:58:48,801 INFO L125 PetriNetUnfolderBase]: For 191000/191973 co-relation queries the response was YES. [2024-11-19 13:58:49,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122243 conditions, 24045 events. 11870/24045 cut-off events. For 191000/191973 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 199904 event pairs, 2496 based on Foata normal form. 1396/25321 useless extension candidates. Maximal degree in co-relation 122173. Up to 6532 conditions per place. [2024-11-19 13:58:49,206 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 1687 selfloop transitions, 317 changer transitions 1/2028 dead transitions. [2024-11-19 13:58:49,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 2028 transitions, 32450 flow [2024-11-19 13:58:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 13:58:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 13:58:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions. [2024-11-19 13:58:49,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6926829268292682 [2024-11-19 13:58:49,208 INFO L175 Difference]: Start difference. First operand has 167 places, 586 transitions, 8445 flow. Second operand 10 states and 284 transitions. [2024-11-19 13:58:49,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 2028 transitions, 32450 flow [2024-11-19 13:58:50,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 2028 transitions, 32383 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-19 13:58:50,347 INFO L231 Difference]: Finished difference. Result has 176 places, 884 transitions, 14211 flow [2024-11-19 13:58:50,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8387, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14211, PETRI_PLACES=176, PETRI_TRANSITIONS=884} [2024-11-19 13:58:50,349 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 138 predicate places. [2024-11-19 13:58:50,349 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 884 transitions, 14211 flow [2024-11-19 13:58:50,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:50,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:58:50,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:58:50,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 13:58:50,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:50,552 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:58:50,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:58:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1120311519, now seen corresponding path program 1 times [2024-11-19 13:58:50,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:58:50,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215680898] [2024-11-19 13:58:50,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:50,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:58:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:51,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:58:51,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215680898] [2024-11-19 13:58:51,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215680898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:58:51,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773522243] [2024-11-19 13:58:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:58:51,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:58:51,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:58:51,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:58:51,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:58:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:58:51,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-19 13:58:51,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:58:51,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 13:58:51,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 13:58:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:51,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:58:51,750 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-19 13:58:51,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 34 [2024-11-19 13:58:51,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:58:51,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773522243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:58:51,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:58:51,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 27 [2024-11-19 13:58:51,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50838375] [2024-11-19 13:58:51,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:58:51,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 13:58:51,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:58:51,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 13:58:51,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-11-19 13:58:51,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 41 [2024-11-19 13:58:51,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 884 transitions, 14211 flow. Second operand has 28 states, 28 states have (on average 10.642857142857142) internal successors, (298), 28 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:58:51,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:58:51,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 41 [2024-11-19 13:58:51,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:59:19,949 INFO L124 PetriNetUnfolderBase]: 37941/72611 cut-off events. [2024-11-19 13:59:19,949 INFO L125 PetriNetUnfolderBase]: For 652683/652740 co-relation queries the response was YES. [2024-11-19 13:59:21,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371686 conditions, 72611 events. 37941/72611 cut-off events. For 652683/652740 co-relation queries the response was YES. Maximal size of possible extension queue 1213. Compared 666343 event pairs, 1750 based on Foata normal form. 3024/75627 useless extension candidates. Maximal degree in co-relation 371613. Up to 11275 conditions per place. [2024-11-19 13:59:21,715 INFO L140 encePairwiseOnDemand]: 22/41 looper letters, 1049 selfloop transitions, 3928 changer transitions 18/5001 dead transitions. [2024-11-19 13:59:21,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 5001 transitions, 84047 flow [2024-11-19 13:59:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-19 13:59:21,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2024-11-19 13:59:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 2041 transitions. [2024-11-19 13:59:21,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3771249076127125 [2024-11-19 13:59:21,723 INFO L175 Difference]: Start difference. First operand has 176 places, 884 transitions, 14211 flow. Second operand 132 states and 2041 transitions. [2024-11-19 13:59:21,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 5001 transitions, 84047 flow [2024-11-19 13:59:29,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 5001 transitions, 83537 flow, removed 157 selfloop flow, removed 5 redundant places. [2024-11-19 13:59:29,258 INFO L231 Difference]: Finished difference. Result has 401 places, 4281 transitions, 84587 flow [2024-11-19 13:59:29,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=13592, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=750, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=132, PETRI_FLOW=84587, PETRI_PLACES=401, PETRI_TRANSITIONS=4281} [2024-11-19 13:59:29,260 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 363 predicate places. [2024-11-19 13:59:29,260 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 4281 transitions, 84587 flow [2024-11-19 13:59:29,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.642857142857142) internal successors, (298), 28 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:59:29,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:59:29,261 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:59:29,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 13:59:29,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 13:59:29,466 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-19 13:59:29,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:59:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1568302287, now seen corresponding path program 2 times [2024-11-19 13:59:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:59:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710053658] [2024-11-19 13:59:29,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:59:29,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:59:29,488 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:59:29,489 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:59:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:59:29,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:59:29,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710053658] [2024-11-19 13:59:29,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710053658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:59:29,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511067037] [2024-11-19 13:59:29,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:59:29,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:59:29,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:59:29,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 13:59:29,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:59:29,748 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:59:29,748 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:59:29,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 13:59:29,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:59:29,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 13:59:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 13:59:29,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:59:29,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511067037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:59:29,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:59:29,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2024-11-19 13:59:29,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108545233] [2024-11-19 13:59:29,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:59:29,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 13:59:29,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:59:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 13:59:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 13:59:29,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-19 13:59:29,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 4281 transitions, 84587 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:59:29,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:59:29,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-19 13:59:29,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand