./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:45:11,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:45:11,887 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:45:11,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:45:11,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:45:11,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:45:11,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:45:11,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:45:11,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:45:11,906 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:45:11,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:45:11,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:45:11,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:45:11,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:45:11,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:45:11,908 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:45:11,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:45:11,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:45:11,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:45:11,909 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2025-01-10 06:45:12,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:45:12,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:45:12,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:45:12,153 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:45:12,153 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:45:12,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2025-01-10 06:45:13,339 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/28d4509b3/de372e34bf604586b81d0209dec5aa48/FLAGaad26642a [2025-01-10 06:45:13,646 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:45:13,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2025-01-10 06:45:13,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/28d4509b3/de372e34bf604586b81d0209dec5aa48/FLAGaad26642a [2025-01-10 06:45:13,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/28d4509b3/de372e34bf604586b81d0209dec5aa48 [2025-01-10 06:45:13,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:45:13,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:45:13,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:45:13,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:45:13,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:45:13,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:45:13" (1/1) ... [2025-01-10 06:45:13,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64290d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:13, skipping insertion in model container [2025-01-10 06:45:13,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:45:13" (1/1) ... [2025-01-10 06:45:13,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:45:14,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:45:14,192 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:45:14,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:45:14,241 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:45:14,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14 WrapperNode [2025-01-10 06:45:14,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:45:14,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:45:14,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:45:14,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:45:14,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,272 INFO L138 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 100 [2025-01-10 06:45:14,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:45:14,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:45:14,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:45:14,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:45:14,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,294 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-01-10 06:45:14,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,298 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:45:14,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:45:14,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:45:14,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:45:14,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (1/1) ... [2025-01-10 06:45:14,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:45:14,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:14,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:45:14,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:45:14,359 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2025-01-10 06:45:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2025-01-10 06:45:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:45:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:45:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:45:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:45:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:45:14,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:45:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:45:14,361 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:45:14,449 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:45:14,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:45:14,635 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:45:14,635 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:45:14,764 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:45:14,764 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-10 06:45:14,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:45:14 BoogieIcfgContainer [2025-01-10 06:45:14,765 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:45:14,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:45:14,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:45:14,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:45:14,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:45:13" (1/3) ... [2025-01-10 06:45:14,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36522bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:45:14, skipping insertion in model container [2025-01-10 06:45:14,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:45:14" (2/3) ... [2025-01-10 06:45:14,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36522bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:45:14, skipping insertion in model container [2025-01-10 06:45:14,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:45:14" (3/3) ... [2025-01-10 06:45:14,780 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2025-01-10 06:45:14,801 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:45:14,802 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_69-refine-protected-loop-interval_true.i that has 2 procedures, 34 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-01-10 06:45:14,802 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:45:14,871 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:45:14,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 38 transitions, 80 flow [2025-01-10 06:45:14,971 INFO L124 PetriNetUnfolderBase]: 5/37 cut-off events. [2025-01-10 06:45:14,973 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:45:14,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 5/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2025-01-10 06:45:14,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 38 transitions, 80 flow [2025-01-10 06:45:14,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 37 transitions, 77 flow [2025-01-10 06:45:14,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:45:14,993 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;@7ad7cab2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:45:14,993 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-01-10 06:45:14,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:45:15,000 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2025-01-10 06:45:15,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:45:15,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:15,001 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:15,001 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)] === [2025-01-10 06:45:15,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:15,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1318978010, now seen corresponding path program 1 times [2025-01-10 06:45:15,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:15,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744178261] [2025-01-10 06:45:15,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:15,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:45:15,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:45:15,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:15,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:15,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:15,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744178261] [2025-01-10 06:45:15,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744178261] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:15,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:15,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:45:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435890413] [2025-01-10 06:45:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:15,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:45:15,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:15,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:45:15,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:45:15,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2025-01-10 06:45:15,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 77 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) [2025-01-10 06:45:15,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:15,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2025-01-10 06:45:15,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:15,501 INFO L124 PetriNetUnfolderBase]: 184/403 cut-off events. [2025-01-10 06:45:15,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:45:15,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 403 events. 184/403 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1790 event pairs, 14 based on Foata normal form. 4/335 useless extension candidates. Maximal degree in co-relation 729. Up to 222 conditions per place. [2025-01-10 06:45:15,509 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 44 selfloop transitions, 8 changer transitions 1/66 dead transitions. [2025-01-10 06:45:15,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 66 transitions, 241 flow [2025-01-10 06:45:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:45:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:45:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2025-01-10 06:45:15,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6947368421052632 [2025-01-10 06:45:15,526 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 77 flow. Second operand 5 states and 132 transitions. [2025-01-10 06:45:15,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 66 transitions, 241 flow [2025-01-10 06:45:15,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 66 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:45:15,531 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 142 flow [2025-01-10 06:45:15,533 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2025-01-10 06:45:15,536 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2025-01-10 06:45:15,536 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 142 flow [2025-01-10 06:45:15,536 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) [2025-01-10 06:45:15,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:15,537 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:15,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:45:15,537 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)] === [2025-01-10 06:45:15,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:15,538 INFO L85 PathProgramCache]: Analyzing trace with hash 384359707, now seen corresponding path program 1 times [2025-01-10 06:45:15,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:15,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792944559] [2025-01-10 06:45:15,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:15,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:15,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:45:15,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:45:15,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:15,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:15,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:15,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792944559] [2025-01-10 06:45:15,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792944559] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:15,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:15,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:45:15,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300852572] [2025-01-10 06:45:15,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:15,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:45:15,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:15,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:45:15,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:45:15,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2025-01-10 06:45:15,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:15,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:15,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2025-01-10 06:45:15,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:15,747 INFO L124 PetriNetUnfolderBase]: 212/481 cut-off events. [2025-01-10 06:45:15,748 INFO L125 PetriNetUnfolderBase]: For 248/250 co-relation queries the response was YES. [2025-01-10 06:45:15,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 481 events. 212/481 cut-off events. For 248/250 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2216 event pairs, 43 based on Foata normal form. 11/463 useless extension candidates. Maximal degree in co-relation 1134. Up to 285 conditions per place. [2025-01-10 06:45:15,752 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 53 selfloop transitions, 4 changer transitions 1/72 dead transitions. [2025-01-10 06:45:15,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 356 flow [2025-01-10 06:45:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:45:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:45:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2025-01-10 06:45:15,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7236842105263158 [2025-01-10 06:45:15,753 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 142 flow. Second operand 4 states and 110 transitions. [2025-01-10 06:45:15,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 356 flow [2025-01-10 06:45:15,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 72 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:45:15,756 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 182 flow [2025-01-10 06:45:15,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2025-01-10 06:45:15,757 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places. [2025-01-10 06:45:15,757 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 182 flow [2025-01-10 06:45:15,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:15,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:15,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:15,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:45:15,758 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:15,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash -560726867, now seen corresponding path program 1 times [2025-01-10 06:45:15,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:15,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147000917] [2025-01-10 06:45:15,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:15,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:15,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:45:15,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:45:15,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:15,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:15,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:15,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147000917] [2025-01-10 06:45:15,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147000917] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:15,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:15,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:45:15,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233172811] [2025-01-10 06:45:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:15,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:45:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:15,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:45:15,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:45:15,856 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 38 [2025-01-10 06:45:15,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:15,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:15,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 38 [2025-01-10 06:45:15,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:15,933 INFO L124 PetriNetUnfolderBase]: 96/281 cut-off events. [2025-01-10 06:45:15,934 INFO L125 PetriNetUnfolderBase]: For 211/219 co-relation queries the response was YES. [2025-01-10 06:45:15,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 281 events. 96/281 cut-off events. For 211/219 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1211 event pairs, 27 based on Foata normal form. 11/283 useless extension candidates. Maximal degree in co-relation 662. Up to 110 conditions per place. [2025-01-10 06:45:15,936 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 28 selfloop transitions, 5 changer transitions 3/52 dead transitions. [2025-01-10 06:45:15,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 272 flow [2025-01-10 06:45:15,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:45:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:45:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-01-10 06:45:15,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7017543859649122 [2025-01-10 06:45:15,937 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 182 flow. Second operand 3 states and 80 transitions. [2025-01-10 06:45:15,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 272 flow [2025-01-10 06:45:15,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 52 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:45:15,939 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 150 flow [2025-01-10 06:45:15,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2025-01-10 06:45:15,940 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places. [2025-01-10 06:45:15,940 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 150 flow [2025-01-10 06:45:15,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:15,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:15,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:15,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:45:15,941 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:15,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1987202989, now seen corresponding path program 1 times [2025-01-10 06:45:15,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:15,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675916632] [2025-01-10 06:45:15,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:15,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:45:15,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:45:15,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:15,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:15,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:15,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675916632] [2025-01-10 06:45:15,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675916632] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:15,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:15,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:45:15,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189382279] [2025-01-10 06:45:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:15,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:45:15,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:15,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:45:15,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:45:15,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2025-01-10 06:45:15,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:15,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:15,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2025-01-10 06:45:15,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:16,112 INFO L124 PetriNetUnfolderBase]: 131/354 cut-off events. [2025-01-10 06:45:16,112 INFO L125 PetriNetUnfolderBase]: For 232/245 co-relation queries the response was YES. [2025-01-10 06:45:16,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 354 events. 131/354 cut-off events. For 232/245 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1458 event pairs, 46 based on Foata normal form. 12/350 useless extension candidates. Maximal degree in co-relation 881. Up to 153 conditions per place. [2025-01-10 06:45:16,114 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 42 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2025-01-10 06:45:16,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 326 flow [2025-01-10 06:45:16,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:45:16,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:45:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2025-01-10 06:45:16,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6118421052631579 [2025-01-10 06:45:16,116 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 150 flow. Second operand 4 states and 93 transitions. [2025-01-10 06:45:16,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 326 flow [2025-01-10 06:45:16,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:45:16,118 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 176 flow [2025-01-10 06:45:16,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2025-01-10 06:45:16,118 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2025-01-10 06:45:16,118 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 176 flow [2025-01-10 06:45:16,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:16,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:16,118 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:16,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:45:16,119 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:16,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:16,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1473750868, now seen corresponding path program 1 times [2025-01-10 06:45:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:16,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315900446] [2025-01-10 06:45:16,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:16,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:16,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:45:16,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:45:16,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:16,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:16,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:16,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315900446] [2025-01-10 06:45:16,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315900446] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:16,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:16,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:45:16,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119706664] [2025-01-10 06:45:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:16,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:45:16,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:16,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:45:16,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:45:16,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-01-10 06:45:16,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:16,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:16,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-01-10 06:45:16,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:16,386 INFO L124 PetriNetUnfolderBase]: 176/442 cut-off events. [2025-01-10 06:45:16,386 INFO L125 PetriNetUnfolderBase]: For 493/505 co-relation queries the response was YES. [2025-01-10 06:45:16,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 442 events. 176/442 cut-off events. For 493/505 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1739 event pairs, 36 based on Foata normal form. 9/451 useless extension candidates. Maximal degree in co-relation 1169. Up to 217 conditions per place. [2025-01-10 06:45:16,390 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 49 selfloop transitions, 11 changer transitions 7/76 dead transitions. [2025-01-10 06:45:16,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 76 transitions, 457 flow [2025-01-10 06:45:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 06:45:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 06:45:16,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2025-01-10 06:45:16,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2025-01-10 06:45:16,393 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 176 flow. Second operand 8 states and 154 transitions. [2025-01-10 06:45:16,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 76 transitions, 457 flow [2025-01-10 06:45:16,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 76 transitions, 451 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:45:16,398 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 249 flow [2025-01-10 06:45:16,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=249, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2025-01-10 06:45:16,401 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2025-01-10 06:45:16,401 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 249 flow [2025-01-10 06:45:16,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:16,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:16,403 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:16,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:45:16,403 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:16,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1154177964, now seen corresponding path program 1 times [2025-01-10 06:45:16,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:16,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890458840] [2025-01-10 06:45:16,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:16,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:16,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:45:16,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:45:16,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:16,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:16,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:16,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:16,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890458840] [2025-01-10 06:45:16,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890458840] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:16,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455332285] [2025-01-10 06:45:16,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:16,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:16,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:16,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:16,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 06:45:16,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:45:16,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:45:16,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:16,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:16,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:45:16,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:16,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:45:16,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455332285] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:16,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:45:16,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:45:16,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122350913] [2025-01-10 06:45:16,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:16,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:45:16,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:16,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:45:16,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:45:16,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2025-01-10 06:45:16,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 249 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) [2025-01-10 06:45:16,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:16,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2025-01-10 06:45:16,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:16,866 INFO L124 PetriNetUnfolderBase]: 210/557 cut-off events. [2025-01-10 06:45:16,866 INFO L125 PetriNetUnfolderBase]: For 912/919 co-relation queries the response was YES. [2025-01-10 06:45:16,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 557 events. 210/557 cut-off events. For 912/919 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2304 event pairs, 49 based on Foata normal form. 15/572 useless extension candidates. Maximal degree in co-relation 1546. Up to 180 conditions per place. [2025-01-10 06:45:16,869 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 63 selfloop transitions, 21 changer transitions 3/97 dead transitions. [2025-01-10 06:45:16,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 97 transitions, 663 flow [2025-01-10 06:45:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 06:45:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 06:45:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 210 transitions. [2025-01-10 06:45:16,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2025-01-10 06:45:16,870 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 249 flow. Second operand 10 states and 210 transitions. [2025-01-10 06:45:16,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 97 transitions, 663 flow [2025-01-10 06:45:16,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 649 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-01-10 06:45:16,875 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 424 flow [2025-01-10 06:45:16,875 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=424, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2025-01-10 06:45:16,875 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 33 predicate places. [2025-01-10 06:45:16,875 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 424 flow [2025-01-10 06:45:16,876 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) [2025-01-10 06:45:16,876 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:16,876 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:16,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 06:45:17,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:17,080 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:17,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1419778178, now seen corresponding path program 1 times [2025-01-10 06:45:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:17,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280956794] [2025-01-10 06:45:17,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:17,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:17,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:45:17,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:45:17,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:17,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 06:45:17,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:17,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280956794] [2025-01-10 06:45:17,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280956794] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:17,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:17,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:45:17,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702242391] [2025-01-10 06:45:17,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:17,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:45:17,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:17,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:45:17,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:45:17,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2025-01-10 06:45:17,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:17,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:17,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2025-01-10 06:45:17,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:17,188 INFO L124 PetriNetUnfolderBase]: 205/546 cut-off events. [2025-01-10 06:45:17,188 INFO L125 PetriNetUnfolderBase]: For 1801/1810 co-relation queries the response was YES. [2025-01-10 06:45:17,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 546 events. 205/546 cut-off events. For 1801/1810 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2217 event pairs, 82 based on Foata normal form. 16/558 useless extension candidates. Maximal degree in co-relation 1749. Up to 310 conditions per place. [2025-01-10 06:45:17,192 INFO L140 encePairwiseOnDemand]: 35/38 looper letters, 45 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2025-01-10 06:45:17,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 609 flow [2025-01-10 06:45:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:45:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:45:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2025-01-10 06:45:17,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-01-10 06:45:17,193 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 424 flow. Second operand 3 states and 76 transitions. [2025-01-10 06:45:17,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 609 flow [2025-01-10 06:45:17,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 584 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-01-10 06:45:17,198 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 430 flow [2025-01-10 06:45:17,199 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2025-01-10 06:45:17,199 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 33 predicate places. [2025-01-10 06:45:17,199 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 430 flow [2025-01-10 06:45:17,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:17,199 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:17,200 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:17,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:45:17,200 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:17,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash 226540617, now seen corresponding path program 1 times [2025-01-10 06:45:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:17,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131919183] [2025-01-10 06:45:17,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:17,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:17,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 06:45:17,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 06:45:17,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:17,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:17,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131919183] [2025-01-10 06:45:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131919183] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339656082] [2025-01-10 06:45:17,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:17,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:17,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:17,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 06:45:17,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 06:45:17,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 06:45:17,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:17,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:17,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:45:17,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:17,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:45:17,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339656082] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:17,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:45:17,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-01-10 06:45:17,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731550033] [2025-01-10 06:45:17,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:17,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:45:17,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:17,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:45:17,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:45:17,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2025-01-10 06:45:17,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:17,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:17,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2025-01-10 06:45:17,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:17,621 INFO L124 PetriNetUnfolderBase]: 221/556 cut-off events. [2025-01-10 06:45:17,621 INFO L125 PetriNetUnfolderBase]: For 2070/2070 co-relation queries the response was YES. [2025-01-10 06:45:17,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1909 conditions, 556 events. 221/556 cut-off events. For 2070/2070 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2226 event pairs, 17 based on Foata normal form. 18/556 useless extension candidates. Maximal degree in co-relation 1877. Up to 237 conditions per place. [2025-01-10 06:45:17,625 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 68 selfloop transitions, 12 changer transitions 5/97 dead transitions. [2025-01-10 06:45:17,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 97 transitions, 878 flow [2025-01-10 06:45:17,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:45:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:45:17,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2025-01-10 06:45:17,626 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6535087719298246 [2025-01-10 06:45:17,626 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 430 flow. Second operand 6 states and 149 transitions. [2025-01-10 06:45:17,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 97 transitions, 878 flow [2025-01-10 06:45:17,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 864 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-01-10 06:45:17,633 INFO L231 Difference]: Finished difference. Result has 72 places, 56 transitions, 436 flow [2025-01-10 06:45:17,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=436, PETRI_PLACES=72, PETRI_TRANSITIONS=56} [2025-01-10 06:45:17,634 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 36 predicate places. [2025-01-10 06:45:17,634 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 56 transitions, 436 flow [2025-01-10 06:45:17,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:17,634 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:17,634 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:45:17,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 06:45:17,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:17,835 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:17,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1567175159, now seen corresponding path program 1 times [2025-01-10 06:45:17,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:17,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782834187] [2025-01-10 06:45:17,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:17,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 06:45:17,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 06:45:17,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:17,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:17,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:17,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782834187] [2025-01-10 06:45:17,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782834187] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:17,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291269253] [2025-01-10 06:45:17,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:17,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:17,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:17,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:17,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 06:45:17,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 06:45:17,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 06:45:17,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:17,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:17,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:45:17,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:18,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:18,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291269253] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:18,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:18,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-01-10 06:45:18,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439488501] [2025-01-10 06:45:18,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:18,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 06:45:18,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:18,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 06:45:18,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-01-10 06:45:18,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2025-01-10 06:45:18,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 56 transitions, 436 flow. Second operand has 12 states, 12 states have (on average 18.333333333333332) internal successors, (220), 12 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:18,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:18,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2025-01-10 06:45:18,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:18,423 INFO L124 PetriNetUnfolderBase]: 477/1164 cut-off events. [2025-01-10 06:45:18,423 INFO L125 PetriNetUnfolderBase]: For 4990/4990 co-relation queries the response was YES. [2025-01-10 06:45:18,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4215 conditions, 1164 events. 477/1164 cut-off events. For 4990/4990 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5740 event pairs, 60 based on Foata normal form. 45/1209 useless extension candidates. Maximal degree in co-relation 4183. Up to 374 conditions per place. [2025-01-10 06:45:18,433 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 131 selfloop transitions, 21 changer transitions 22/186 dead transitions. [2025-01-10 06:45:18,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 186 transitions, 1773 flow [2025-01-10 06:45:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 06:45:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 06:45:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 267 transitions. [2025-01-10 06:45:18,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7026315789473684 [2025-01-10 06:45:18,435 INFO L175 Difference]: Start difference. First operand has 72 places, 56 transitions, 436 flow. Second operand 10 states and 267 transitions. [2025-01-10 06:45:18,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 186 transitions, 1773 flow [2025-01-10 06:45:18,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 186 transitions, 1748 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-01-10 06:45:18,446 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 678 flow [2025-01-10 06:45:18,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=678, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2025-01-10 06:45:18,447 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 47 predicate places. [2025-01-10 06:45:18,447 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 678 flow [2025-01-10 06:45:18,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.333333333333332) internal successors, (220), 12 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:18,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:18,450 INFO L206 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] [2025-01-10 06:45:18,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 06:45:18,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:18,655 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:18,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash 53007469, now seen corresponding path program 1 times [2025-01-10 06:45:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:18,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291446171] [2025-01-10 06:45:18,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:18,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:18,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-10 06:45:18,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-10 06:45:18,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:18,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:18,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:18,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:18,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291446171] [2025-01-10 06:45:18,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291446171] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:18,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:18,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:45:18,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794887158] [2025-01-10 06:45:18,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:18,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:45:18,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:18,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:45:18,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:45:18,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-01-10 06:45:18,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:18,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:18,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-01-10 06:45:18,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:18,977 INFO L124 PetriNetUnfolderBase]: 560/1342 cut-off events. [2025-01-10 06:45:18,977 INFO L125 PetriNetUnfolderBase]: For 8717/8724 co-relation queries the response was YES. [2025-01-10 06:45:18,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5332 conditions, 1342 events. 560/1342 cut-off events. For 8717/8724 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6891 event pairs, 51 based on Foata normal form. 36/1374 useless extension candidates. Maximal degree in co-relation 5295. Up to 461 conditions per place. [2025-01-10 06:45:18,990 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 74 selfloop transitions, 50 changer transitions 0/132 dead transitions. [2025-01-10 06:45:18,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 132 transitions, 1522 flow [2025-01-10 06:45:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 06:45:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 06:45:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2025-01-10 06:45:18,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48026315789473684 [2025-01-10 06:45:18,992 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 678 flow. Second operand 8 states and 146 transitions. [2025-01-10 06:45:18,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 132 transitions, 1522 flow [2025-01-10 06:45:19,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 132 transitions, 1494 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-01-10 06:45:19,007 INFO L231 Difference]: Finished difference. Result has 91 places, 91 transitions, 1143 flow [2025-01-10 06:45:19,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1143, PETRI_PLACES=91, PETRI_TRANSITIONS=91} [2025-01-10 06:45:19,008 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 55 predicate places. [2025-01-10 06:45:19,008 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 91 transitions, 1143 flow [2025-01-10 06:45:19,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:19,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:19,009 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:19,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:45:19,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:19,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:19,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1508248834, now seen corresponding path program 1 times [2025-01-10 06:45:19,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:19,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084465485] [2025-01-10 06:45:19,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:19,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:19,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 06:45:19,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 06:45:19,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:19,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:19,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:19,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084465485] [2025-01-10 06:45:19,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084465485] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:19,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807951774] [2025-01-10 06:45:19,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:19,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:19,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:19,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:19,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 06:45:19,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 06:45:19,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 06:45:19,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:19,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:19,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:45:19,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:19,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:19,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807951774] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:19,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:19,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2025-01-10 06:45:19,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60134902] [2025-01-10 06:45:19,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:19,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 06:45:19,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:19,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 06:45:19,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-01-10 06:45:19,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-01-10 06:45:19,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 1143 flow. Second operand has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:19,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:19,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-01-10 06:45:19,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:19,781 INFO L124 PetriNetUnfolderBase]: 667/1657 cut-off events. [2025-01-10 06:45:19,781 INFO L125 PetriNetUnfolderBase]: For 15803/15810 co-relation queries the response was YES. [2025-01-10 06:45:19,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7256 conditions, 1657 events. 667/1657 cut-off events. For 15803/15810 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8226 event pairs, 78 based on Foata normal form. 68/1721 useless extension candidates. Maximal degree in co-relation 7213. Up to 430 conditions per place. [2025-01-10 06:45:19,794 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 104 selfloop transitions, 87 changer transitions 31/230 dead transitions. [2025-01-10 06:45:19,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 230 transitions, 3012 flow [2025-01-10 06:45:19,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-10 06:45:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-10 06:45:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 352 transitions. [2025-01-10 06:45:19,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44110275689223055 [2025-01-10 06:45:19,797 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 1143 flow. Second operand 21 states and 352 transitions. [2025-01-10 06:45:19,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 230 transitions, 3012 flow [2025-01-10 06:45:19,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 230 transitions, 2813 flow, removed 65 selfloop flow, removed 4 redundant places. [2025-01-10 06:45:19,818 INFO L231 Difference]: Finished difference. Result has 110 places, 126 transitions, 1855 flow [2025-01-10 06:45:19,818 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1855, PETRI_PLACES=110, PETRI_TRANSITIONS=126} [2025-01-10 06:45:19,818 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 74 predicate places. [2025-01-10 06:45:19,819 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 126 transitions, 1855 flow [2025-01-10 06:45:19,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:19,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:19,819 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2025-01-10 06:45:19,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 06:45:20,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-01-10 06:45:20,024 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:20,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:20,026 INFO L85 PathProgramCache]: Analyzing trace with hash -235434991, now seen corresponding path program 1 times [2025-01-10 06:45:20,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:20,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904808124] [2025-01-10 06:45:20,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:20,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:20,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-10 06:45:20,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-10 06:45:20,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:20,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 40 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 06:45:20,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904808124] [2025-01-10 06:45:20,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904808124] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270461668] [2025-01-10 06:45:20,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:20,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:20,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:20,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:20,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 06:45:20,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-10 06:45:20,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-10 06:45:20,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:20,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:20,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:45:20,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 40 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 06:45:20,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:20,400 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 40 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 06:45:20,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270461668] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:20,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:20,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-10 06:45:20,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868266770] [2025-01-10 06:45:20,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:20,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:45:20,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:20,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:45:20,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:45:20,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2025-01-10 06:45:20,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 126 transitions, 1855 flow. Second operand has 18 states, 18 states have (on average 16.72222222222222) internal successors, (301), 18 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:20,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:20,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2025-01-10 06:45:20,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:20,947 INFO L124 PetriNetUnfolderBase]: 660/1764 cut-off events. [2025-01-10 06:45:20,947 INFO L125 PetriNetUnfolderBase]: For 17688/17695 co-relation queries the response was YES. [2025-01-10 06:45:20,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8242 conditions, 1764 events. 660/1764 cut-off events. For 17688/17695 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9286 event pairs, 230 based on Foata normal form. 8/1772 useless extension candidates. Maximal degree in co-relation 8196. Up to 931 conditions per place. [2025-01-10 06:45:20,960 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 205 selfloop transitions, 75 changer transitions 10/298 dead transitions. [2025-01-10 06:45:20,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 298 transitions, 3923 flow [2025-01-10 06:45:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-10 06:45:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-01-10 06:45:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 601 transitions. [2025-01-10 06:45:20,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5101867572156197 [2025-01-10 06:45:20,965 INFO L175 Difference]: Start difference. First operand has 110 places, 126 transitions, 1855 flow. Second operand 31 states and 601 transitions. [2025-01-10 06:45:20,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 298 transitions, 3923 flow [2025-01-10 06:45:20,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 298 transitions, 3594 flow, removed 96 selfloop flow, removed 8 redundant places. [2025-01-10 06:45:20,992 INFO L231 Difference]: Finished difference. Result has 142 places, 165 transitions, 2452 flow [2025-01-10 06:45:20,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1647, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=2452, PETRI_PLACES=142, PETRI_TRANSITIONS=165} [2025-01-10 06:45:20,994 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 106 predicate places. [2025-01-10 06:45:20,994 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 165 transitions, 2452 flow [2025-01-10 06:45:20,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 16.72222222222222) internal successors, (301), 18 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:20,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:20,995 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2025-01-10 06:45:21,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 06:45:21,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-10 06:45:21,196 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:21,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:21,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1764619585, now seen corresponding path program 2 times [2025-01-10 06:45:21,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:21,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605520184] [2025-01-10 06:45:21,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:45:21,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:21,206 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-01-10 06:45:21,218 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-01-10 06:45:21,218 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:45:21,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:21,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605520184] [2025-01-10 06:45:21,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605520184] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916484210] [2025-01-10 06:45:21,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:45:21,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:21,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:21,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 06:45:21,427 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-01-10 06:45:21,450 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-01-10 06:45:21,451 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:45:21,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:21,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-10 06:45:21,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:21,534 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:21,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:21,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916484210] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:21,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:21,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-01-10 06:45:21,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972704633] [2025-01-10 06:45:21,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:21,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 06:45:21,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:21,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 06:45:21,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-01-10 06:45:21,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2025-01-10 06:45:21,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 165 transitions, 2452 flow. Second operand has 24 states, 24 states have (on average 18.416666666666668) internal successors, (442), 24 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:21,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:21,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2025-01-10 06:45:21,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:23,000 INFO L124 PetriNetUnfolderBase]: 1837/4646 cut-off events. [2025-01-10 06:45:23,000 INFO L125 PetriNetUnfolderBase]: For 46394/46394 co-relation queries the response was YES. [2025-01-10 06:45:23,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20986 conditions, 4646 events. 1837/4646 cut-off events. For 46394/46394 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 25464 event pairs, 101 based on Foata normal form. 215/4861 useless extension candidates. Maximal degree in co-relation 20930. Up to 661 conditions per place. [2025-01-10 06:45:23,046 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 531 selfloop transitions, 135 changer transitions 96/773 dead transitions. [2025-01-10 06:45:23,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 773 transitions, 11322 flow [2025-01-10 06:45:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-10 06:45:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-01-10 06:45:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 584 transitions. [2025-01-10 06:45:23,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6985645933014354 [2025-01-10 06:45:23,050 INFO L175 Difference]: Start difference. First operand has 142 places, 165 transitions, 2452 flow. Second operand 22 states and 584 transitions. [2025-01-10 06:45:23,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 773 transitions, 11322 flow [2025-01-10 06:45:23,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 773 transitions, 11077 flow, removed 73 selfloop flow, removed 4 redundant places. [2025-01-10 06:45:23,140 INFO L231 Difference]: Finished difference. Result has 169 places, 239 transitions, 4022 flow [2025-01-10 06:45:23,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2326, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4022, PETRI_PLACES=169, PETRI_TRANSITIONS=239} [2025-01-10 06:45:23,142 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 133 predicate places. [2025-01-10 06:45:23,142 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 239 transitions, 4022 flow [2025-01-10 06:45:23,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 18.416666666666668) internal successors, (442), 24 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:23,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:23,143 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 10, 7, 7, 7, 4, 1, 1, 1, 1] [2025-01-10 06:45:23,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 06:45:23,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-10 06:45:23,344 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:23,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:23,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1065145679, now seen corresponding path program 2 times [2025-01-10 06:45:23,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:23,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632262400] [2025-01-10 06:45:23,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:45:23,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:23,360 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-01-10 06:45:23,377 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 105 of 105 statements. [2025-01-10 06:45:23,377 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:45:23,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 40 proven. 394 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-10 06:45:23,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:23,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632262400] [2025-01-10 06:45:23,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632262400] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:23,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769607848] [2025-01-10 06:45:23,723 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:45:23,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:23,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:23,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:23,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 06:45:23,785 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-01-10 06:45:23,824 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 105 of 105 statements. [2025-01-10 06:45:23,824 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:45:23,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:23,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:45:23,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 40 proven. 394 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-10 06:45:23,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 40 proven. 394 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-10 06:45:24,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769607848] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:24,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:24,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2025-01-10 06:45:24,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557181687] [2025-01-10 06:45:24,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:24,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-10 06:45:24,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:24,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-10 06:45:24,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-01-10 06:45:24,308 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2025-01-10 06:45:24,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 239 transitions, 4022 flow. Second operand has 34 states, 34 states have (on average 16.558823529411764) internal successors, (563), 34 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:24,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:24,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2025-01-10 06:45:24,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:25,951 INFO L124 PetriNetUnfolderBase]: 1978/5172 cut-off events. [2025-01-10 06:45:25,952 INFO L125 PetriNetUnfolderBase]: For 61636/61637 co-relation queries the response was YES. [2025-01-10 06:45:25,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25135 conditions, 5172 events. 1978/5172 cut-off events. For 61636/61637 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 29643 event pairs, 834 based on Foata normal form. 16/5188 useless extension candidates. Maximal degree in co-relation 25069. Up to 2980 conditions per place. [2025-01-10 06:45:25,996 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 445 selfloop transitions, 151 changer transitions 26/630 dead transitions. [2025-01-10 06:45:25,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 630 transitions, 8937 flow [2025-01-10 06:45:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2025-01-10 06:45:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2025-01-10 06:45:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 1291 transitions. [2025-01-10 06:45:25,999 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.507069913589945 [2025-01-10 06:45:25,999 INFO L175 Difference]: Start difference. First operand has 169 places, 239 transitions, 4022 flow. Second operand 67 states and 1291 transitions. [2025-01-10 06:45:25,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 630 transitions, 8937 flow [2025-01-10 06:45:26,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 630 transitions, 8538 flow, removed 139 selfloop flow, removed 9 redundant places. [2025-01-10 06:45:26,129 INFO L231 Difference]: Finished difference. Result has 244 places, 319 transitions, 5697 flow [2025-01-10 06:45:26,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=3753, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=67, PETRI_FLOW=5697, PETRI_PLACES=244, PETRI_TRANSITIONS=319} [2025-01-10 06:45:26,130 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 208 predicate places. [2025-01-10 06:45:26,130 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 319 transitions, 5697 flow [2025-01-10 06:45:26,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 16.558823529411764) internal successors, (563), 34 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:26,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:26,131 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 10, 8, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:26,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 06:45:26,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:26,335 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)] === [2025-01-10 06:45:26,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:26,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1243962704, now seen corresponding path program 1 times [2025-01-10 06:45:26,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:26,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120830617] [2025-01-10 06:45:26,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:26,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:26,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-10 06:45:26,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-10 06:45:26,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:26,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 141 proven. 16 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-01-10 06:45:26,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:26,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120830617] [2025-01-10 06:45:26,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120830617] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:26,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611329653] [2025-01-10 06:45:26,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:45:26,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:26,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:26,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:26,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 06:45:26,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-10 06:45:26,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-10 06:45:26,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:45:26,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:26,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 06:45:26,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 141 proven. 16 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-01-10 06:45:26,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 141 proven. 16 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-01-10 06:45:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611329653] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:26,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:26,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 15 [2025-01-10 06:45:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224093759] [2025-01-10 06:45:26,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:26,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 06:45:26,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:26,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 06:45:26,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2025-01-10 06:45:26,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-01-10 06:45:26,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 319 transitions, 5697 flow. Second operand has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:26,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:26,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-01-10 06:45:26,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:28,974 INFO L124 PetriNetUnfolderBase]: 3266/8681 cut-off events. [2025-01-10 06:45:28,974 INFO L125 PetriNetUnfolderBase]: For 108067/108085 co-relation queries the response was YES. [2025-01-10 06:45:29,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41469 conditions, 8681 events. 3266/8681 cut-off events. For 108067/108085 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 56677 event pairs, 611 based on Foata normal form. 132/8813 useless extension candidates. Maximal degree in co-relation 41382. Up to 2115 conditions per place. [2025-01-10 06:45:29,065 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 373 selfloop transitions, 331 changer transitions 18/730 dead transitions. [2025-01-10 06:45:29,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 730 transitions, 11847 flow [2025-01-10 06:45:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-10 06:45:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-01-10 06:45:29,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 614 transitions. [2025-01-10 06:45:29,068 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4366998577524893 [2025-01-10 06:45:29,068 INFO L175 Difference]: Start difference. First operand has 244 places, 319 transitions, 5697 flow. Second operand 37 states and 614 transitions. [2025-01-10 06:45:29,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 730 transitions, 11847 flow [2025-01-10 06:45:29,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 730 transitions, 11389 flow, removed 185 selfloop flow, removed 26 redundant places. [2025-01-10 06:45:29,373 INFO L231 Difference]: Finished difference. Result has 257 places, 503 transitions, 9272 flow [2025-01-10 06:45:29,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=5045, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=9272, PETRI_PLACES=257, PETRI_TRANSITIONS=503} [2025-01-10 06:45:29,374 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 221 predicate places. [2025-01-10 06:45:29,374 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 503 transitions, 9272 flow [2025-01-10 06:45:29,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:29,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:29,375 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 10, 7, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:29,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 06:45:29,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-01-10 06:45:29,575 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:29,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash 163667515, now seen corresponding path program 2 times [2025-01-10 06:45:29,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:29,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253770777] [2025-01-10 06:45:29,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:45:29,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:29,589 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-01-10 06:45:29,595 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 30 of 108 statements. [2025-01-10 06:45:29,596 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:45:29,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-01-10 06:45:29,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:29,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253770777] [2025-01-10 06:45:29,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253770777] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:45:29,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:45:29,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 06:45:29,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254996282] [2025-01-10 06:45:29,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:45:29,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:45:29,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:29,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:45:29,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:45:29,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-01-10 06:45:29,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 503 transitions, 9272 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:29,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:29,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-01-10 06:45:29,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:31,700 INFO L124 PetriNetUnfolderBase]: 3242/8735 cut-off events. [2025-01-10 06:45:31,700 INFO L125 PetriNetUnfolderBase]: For 123685/123697 co-relation queries the response was YES. [2025-01-10 06:45:31,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44213 conditions, 8735 events. 3242/8735 cut-off events. For 123685/123697 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 57657 event pairs, 353 based on Foata normal form. 21/8719 useless extension candidates. Maximal degree in co-relation 44119. Up to 2276 conditions per place. [2025-01-10 06:45:31,821 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 119 selfloop transitions, 468 changer transitions 0/595 dead transitions. [2025-01-10 06:45:31,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 595 transitions, 11539 flow [2025-01-10 06:45:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 06:45:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 06:45:31,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 166 transitions. [2025-01-10 06:45:31,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4368421052631579 [2025-01-10 06:45:31,823 INFO L175 Difference]: Start difference. First operand has 257 places, 503 transitions, 9272 flow. Second operand 10 states and 166 transitions. [2025-01-10 06:45:31,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 595 transitions, 11539 flow [2025-01-10 06:45:32,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 595 transitions, 11220 flow, removed 93 selfloop flow, removed 8 redundant places. [2025-01-10 06:45:32,263 INFO L231 Difference]: Finished difference. Result has 258 places, 527 transitions, 10366 flow [2025-01-10 06:45:32,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=8854, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10366, PETRI_PLACES=258, PETRI_TRANSITIONS=527} [2025-01-10 06:45:32,264 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 222 predicate places. [2025-01-10 06:45:32,264 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 527 transitions, 10366 flow [2025-01-10 06:45:32,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:32,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:32,265 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 10, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:45:32,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 06:45:32,265 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:32,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:32,266 INFO L85 PathProgramCache]: Analyzing trace with hash -263325678, now seen corresponding path program 3 times [2025-01-10 06:45:32,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:32,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357087121] [2025-01-10 06:45:32,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:45:32,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:32,280 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 110 statements into 8 equivalence classes. [2025-01-10 06:45:32,331 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 110 of 110 statements. [2025-01-10 06:45:32,333 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-10 06:45:32,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 27 proven. 96 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-01-10 06:45:32,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357087121] [2025-01-10 06:45:32,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357087121] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:32,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545060328] [2025-01-10 06:45:32,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:45:32,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:32,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:32,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:32,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 06:45:32,828 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 110 statements into 8 equivalence classes. [2025-01-10 06:45:32,887 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 110 of 110 statements. [2025-01-10 06:45:32,888 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-01-10 06:45:32,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:32,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 06:45:32,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 27 proven. 96 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-01-10 06:45:32,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 27 proven. 96 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-01-10 06:45:33,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545060328] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:33,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:33,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-01-10 06:45:33,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111517740] [2025-01-10 06:45:33,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:33,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 06:45:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:33,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 06:45:33,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2025-01-10 06:45:33,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-01-10 06:45:33,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 527 transitions, 10366 flow. Second operand has 24 states, 24 states have (on average 14.833333333333334) internal successors, (356), 24 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:33,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:33,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-01-10 06:45:33,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:37,642 INFO L124 PetriNetUnfolderBase]: 5730/15433 cut-off events. [2025-01-10 06:45:37,643 INFO L125 PetriNetUnfolderBase]: For 231505/231545 co-relation queries the response was YES. [2025-01-10 06:45:37,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80584 conditions, 15433 events. 5730/15433 cut-off events. For 231505/231545 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 119223 event pairs, 800 based on Foata normal form. 84/15517 useless extension candidates. Maximal degree in co-relation 80491. Up to 2093 conditions per place. [2025-01-10 06:45:37,923 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 458 selfloop transitions, 748 changer transitions 16/1230 dead transitions. [2025-01-10 06:45:37,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 1230 transitions, 23488 flow [2025-01-10 06:45:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-01-10 06:45:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2025-01-10 06:45:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 911 transitions. [2025-01-10 06:45:37,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42059095106186517 [2025-01-10 06:45:37,929 INFO L175 Difference]: Start difference. First operand has 258 places, 527 transitions, 10366 flow. Second operand 57 states and 911 transitions. [2025-01-10 06:45:37,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 1230 transitions, 23488 flow [2025-01-10 06:45:38,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1230 transitions, 23323 flow, removed 80 selfloop flow, removed 2 redundant places. [2025-01-10 06:45:38,812 INFO L231 Difference]: Finished difference. Result has 317 places, 944 transitions, 20841 flow [2025-01-10 06:45:38,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=10192, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=20841, PETRI_PLACES=317, PETRI_TRANSITIONS=944} [2025-01-10 06:45:38,813 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 281 predicate places. [2025-01-10 06:45:38,813 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 944 transitions, 20841 flow [2025-01-10 06:45:38,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 14.833333333333334) internal successors, (356), 24 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:38,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:45:38,814 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2025-01-10 06:45:38,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 06:45:39,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:39,015 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:45:39,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:45:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash 825490603, now seen corresponding path program 3 times [2025-01-10 06:45:39,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:45:39,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416061595] [2025-01-10 06:45:39,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:45:39,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:45:39,028 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 113 statements into 11 equivalence classes. [2025-01-10 06:45:39,077 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 113 of 113 statements. [2025-01-10 06:45:39,077 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 06:45:39,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:39,708 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:39,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:45:39,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416061595] [2025-01-10 06:45:39,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416061595] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:45:39,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491558839] [2025-01-10 06:45:39,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:45:39,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:45:39,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:45:39,712 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:45:39,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 06:45:39,783 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 113 statements into 11 equivalence classes. [2025-01-10 06:45:39,898 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 113 of 113 statements. [2025-01-10 06:45:39,898 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 06:45:39,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:45:39,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 06:45:39,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:45:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:40,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:45:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 0 proven. 550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:45:40,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491558839] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:45:40,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:45:40,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2025-01-10 06:45:40,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070644730] [2025-01-10 06:45:40,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:45:40,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-10 06:45:40,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:45:40,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-10 06:45:40,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-01-10 06:45:40,517 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2025-01-10 06:45:40,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 944 transitions, 20841 flow. Second operand has 48 states, 48 states have (on average 18.458333333333332) internal successors, (886), 48 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:45:40,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:45:40,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2025-01-10 06:45:40,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:45:55,614 INFO L124 PetriNetUnfolderBase]: 15134/39291 cut-off events. [2025-01-10 06:45:55,614 INFO L125 PetriNetUnfolderBase]: For 832758/832758 co-relation queries the response was YES. [2025-01-10 06:45:56,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222663 conditions, 39291 events. 15134/39291 cut-off events. For 832758/832758 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 302553 event pairs, 402 based on Foata normal form. 1787/41078 useless extension candidates. Maximal degree in co-relation 222565. Up to 5491 conditions per place. [2025-01-10 06:45:56,518 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 4212 selfloop transitions, 1530 changer transitions 805/6557 dead transitions. [2025-01-10 06:45:56,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 6557 transitions, 142179 flow [2025-01-10 06:45:56,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-01-10 06:45:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-01-10 06:45:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 1226 transitions. [2025-01-10 06:45:56,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7013729977116705 [2025-01-10 06:45:56,524 INFO L175 Difference]: Start difference. First operand has 317 places, 944 transitions, 20841 flow. Second operand 46 states and 1226 transitions. [2025-01-10 06:45:56,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 6557 transitions, 142179 flow [2025-01-10 06:46:00,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 6557 transitions, 141000 flow, removed 571 selfloop flow, removed 11 redundant places. [2025-01-10 06:46:00,130 INFO L231 Difference]: Finished difference. Result has 375 places, 1896 transitions, 48728 flow [2025-01-10 06:46:00,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=20740, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=650, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=48728, PETRI_PLACES=375, PETRI_TRANSITIONS=1896} [2025-01-10 06:46:00,131 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 339 predicate places. [2025-01-10 06:46:00,131 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 1896 transitions, 48728 flow [2025-01-10 06:46:00,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 18.458333333333332) internal successors, (886), 48 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:46:00,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:00,132 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 22, 16, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:46:00,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-10 06:46:00,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-10 06:46:00,333 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-01-10 06:46:00,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1010396378, now seen corresponding path program 4 times [2025-01-10 06:46:00,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:00,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660108257] [2025-01-10 06:46:00,334 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 06:46:00,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:00,352 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 210 statements into 2 equivalence classes. [2025-01-10 06:46:00,384 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 210 of 210 statements. [2025-01-10 06:46:00,384 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 06:46:00,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 0 proven. 1922 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:01,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660108257] [2025-01-10 06:46:01,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660108257] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:46:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581302170] [2025-01-10 06:46:01,609 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 06:46:01,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:46:01,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:46:01,612 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:46:01,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-10 06:46:01,699 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 210 statements into 2 equivalence classes. [2025-01-10 06:46:01,794 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 210 of 210 statements. [2025-01-10 06:46:01,795 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 06:46:01,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:01,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 06:46:01,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:46:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 836 proven. 186 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2025-01-10 06:46:02,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:46:02,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 836 proven. 186 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2025-01-10 06:46:02,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581302170] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:46:02,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:46:02,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 15, 15] total 76 [2025-01-10 06:46:02,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837823609] [2025-01-10 06:46:02,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:46:02,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2025-01-10 06:46:02,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:02,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2025-01-10 06:46:02,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=813, Invalid=4887, Unknown=0, NotChecked=0, Total=5700 [2025-01-10 06:46:02,745 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 38 [2025-01-10 06:46:02,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1896 transitions, 48728 flow. Second operand has 76 states, 76 states have (on average 12.56578947368421) internal successors, (955), 76 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:46:02,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:02,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 38 [2025-01-10 06:46:02,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand