./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/weaver/chl-node-subst.wvr.c -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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:08:30,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:08:30,145 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:08:30,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:08:30,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:08:30,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:08:30,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:08:30,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:08:30,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:08:30,183 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:08:30,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:08:30,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:08:30,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:08:30,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:08:30,184 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:08:30,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:08:30,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:08:30,185 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:08:30,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:08:30,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:08:30,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:08:30,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:08:30,186 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:08:30,187 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:08:30,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:08:30,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:08:30,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:08:30,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:30,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:08:30,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:08:30,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:08:30,189 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 -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2025-02-08 14:08:30,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:08:30,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:08:30,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:08:30,485 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:08:30,487 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:08:30,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2025-02-08 14:08:31,706 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe9dcb300/92121cd1638241098ed73888d9fea9d9/FLAG0a3976576 [2025-02-08 14:08:31,997 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:08:31,998 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2025-02-08 14:08:32,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe9dcb300/92121cd1638241098ed73888d9fea9d9/FLAG0a3976576 [2025-02-08 14:08:32,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe9dcb300/92121cd1638241098ed73888d9fea9d9 [2025-02-08 14:08:32,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:08:32,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:08:32,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:32,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:08:32,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:08:32,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5202f898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32, skipping insertion in model container [2025-02-08 14:08:32,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:08:32,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:32,504 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:08:32,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:32,569 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:08:32,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32 WrapperNode [2025-02-08 14:08:32,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:32,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:32,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:08:32,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:08:32,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,635 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 474 [2025-02-08 14:08:32,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:32,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:08:32,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:08:32,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:08:32,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,693 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2025-02-08 14:08:32,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,703 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:08:32,712 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:08:32,712 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:08:32,712 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:08:32,713 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (1/1) ... [2025-02-08 14:08:32,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:32,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:32,755 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) [2025-02-08 14:08:32,757 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 [2025-02-08 14:08:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:08:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:08:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:08:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:08:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:08:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:08:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:08:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:08:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:08:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:08:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:08:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:08:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:08:32,784 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:08:32,934 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:08:32,936 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:08:33,112 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-8: #t~ite9#1 := #t~ret8#1; [2025-02-08 14:08:33,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-9: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret8#1 && #t~ret8#1 <= 2147483647; [2025-02-08 14:08:33,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-10: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:33,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-11: havoc minus_#t~short58#1, minus_#t~short59#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:33,113 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L52-12: #t~ret8#1 := minus_#res#1; [2025-02-08 14:08:33,213 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-8: #t~ite18#1 := #t~ret17#1; [2025-02-08 14:08:33,214 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-9: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret17#1 && #t~ret17#1 <= 2147483647; [2025-02-08 14:08:33,214 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-10: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:33,214 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-11: havoc minus_#t~short58#1, minus_#t~short59#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:33,214 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-12: #t~ret17#1 := minus_#res#1; [2025-02-08 14:08:33,296 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-8: #t~ite27#1 := #t~ret26#1; [2025-02-08 14:08:33,297 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-9: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret26#1 && #t~ret26#1 <= 2147483647; [2025-02-08 14:08:33,297 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-10: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:33,297 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-11: havoc minus_#t~short58#1, minus_#t~short59#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:33,297 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-12: #t~ret26#1 := minus_#res#1; [2025-02-08 14:08:33,692 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:08:33,692 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:08:34,108 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:08:34,108 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:08:34,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:34 BoogieIcfgContainer [2025-02-08 14:08:34,110 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:08:34,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:08:34,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:08:34,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:08:34,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:08:32" (1/3) ... [2025-02-08 14:08:34,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11aee473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:34, skipping insertion in model container [2025-02-08 14:08:34,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:32" (2/3) ... [2025-02-08 14:08:34,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11aee473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:34, skipping insertion in model container [2025-02-08 14:08:34,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:34" (3/3) ... [2025-02-08 14:08:34,121 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2025-02-08 14:08:34,138 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:08:34,140 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-node-subst.wvr.c that has 4 procedures, 126 locations, 1 initial locations, 6 loop locations, and 42 error locations. [2025-02-08 14:08:34,140 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:08:34,239 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:08:34,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 137 transitions, 295 flow [2025-02-08 14:08:34,380 INFO L124 PetriNetUnfolderBase]: 12/134 cut-off events. [2025-02-08 14:08:34,383 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:08:34,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 12/134 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 409 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2025-02-08 14:08:34,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 137 transitions, 295 flow [2025-02-08 14:08:34,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 132 transitions, 279 flow [2025-02-08 14:08:34,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:08:34,419 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;@13f0ad71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:08:34,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-02-08 14:08:34,422 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:08:34,422 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2025-02-08 14:08:34,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:08:34,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:34,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-02-08 14:08:34,423 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:34,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:34,428 INFO L85 PathProgramCache]: Analyzing trace with hash 42578, now seen corresponding path program 1 times [2025-02-08 14:08:34,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:34,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747138880] [2025-02-08 14:08:34,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:34,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:34,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:08:34,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:08:34,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:34,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:34,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:34,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747138880] [2025-02-08 14:08:34,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747138880] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:34,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:34,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:08:34,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858796374] [2025-02-08 14:08:34,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:34,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:08:34,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:34,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:08:34,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:08:34,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:34,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 132 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-08 14:08:34,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:34,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:34,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:35,756 INFO L124 PetriNetUnfolderBase]: 3668/7561 cut-off events. [2025-02-08 14:08:35,757 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2025-02-08 14:08:35,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12813 conditions, 7561 events. 3668/7561 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 65156 event pairs, 2732 based on Foata normal form. 2/5919 useless extension candidates. Maximal degree in co-relation 12122. Up to 5033 conditions per place. [2025-02-08 14:08:35,836 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 58 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2025-02-08 14:08:35,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 393 flow [2025-02-08 14:08:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:08:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:08:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2025-02-08 14:08:35,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6885644768856448 [2025-02-08 14:08:35,853 INFO L175 Difference]: Start difference. First operand has 130 places, 132 transitions, 279 flow. Second operand 3 states and 283 transitions. [2025-02-08 14:08:35,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 393 flow [2025-02-08 14:08:35,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 130 transitions, 384 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:08:35,867 INFO L231 Difference]: Finished difference. Result has 125 places, 130 transitions, 268 flow [2025-02-08 14:08:35,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=125, PETRI_TRANSITIONS=130} [2025-02-08 14:08:35,874 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2025-02-08 14:08:35,875 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 130 transitions, 268 flow [2025-02-08 14:08:35,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-08 14:08:35,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:35,875 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:08:35,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:08:35,876 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:35,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:35,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1321193, now seen corresponding path program 1 times [2025-02-08 14:08:35,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:35,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851828475] [2025-02-08 14:08:35,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:35,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:35,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:08:35,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:08:35,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:35,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:35,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:35,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:35,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851828475] [2025-02-08 14:08:35,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851828475] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:35,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:35,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:08:35,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665456423] [2025-02-08 14:08:35,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:35,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:08:35,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:35,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:08:35,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:08:36,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:36,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 130 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-08 14:08:36,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:36,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:36,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:36,874 INFO L124 PetriNetUnfolderBase]: 3668/7559 cut-off events. [2025-02-08 14:08:36,876 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2025-02-08 14:08:36,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12728 conditions, 7559 events. 3668/7559 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65190 event pairs, 2732 based on Foata normal form. 0/5917 useless extension candidates. Maximal degree in co-relation 12722. Up to 5031 conditions per place. [2025-02-08 14:08:36,929 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 56 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2025-02-08 14:08:36,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 128 transitions, 378 flow [2025-02-08 14:08:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:08:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:08:36,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2025-02-08 14:08:36,932 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.683698296836983 [2025-02-08 14:08:36,932 INFO L175 Difference]: Start difference. First operand has 125 places, 130 transitions, 268 flow. Second operand 3 states and 281 transitions. [2025-02-08 14:08:36,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 128 transitions, 378 flow [2025-02-08 14:08:36,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 128 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:36,937 INFO L231 Difference]: Finished difference. Result has 124 places, 128 transitions, 265 flow [2025-02-08 14:08:36,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=124, PETRI_TRANSITIONS=128} [2025-02-08 14:08:36,938 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2025-02-08 14:08:36,938 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 128 transitions, 265 flow [2025-02-08 14:08:36,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-08 14:08:36,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:36,939 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:08:36,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:08:36,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:36,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:36,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1269705839, now seen corresponding path program 1 times [2025-02-08 14:08:36,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:36,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498195189] [2025-02-08 14:08:36,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:36,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:36,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:08:36,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:08:36,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:36,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:37,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498195189] [2025-02-08 14:08:37,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498195189] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:37,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:37,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:37,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524131130] [2025-02-08 14:08:37,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:37,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:37,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:37,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:37,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:37,114 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:08:37,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 128 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2025-02-08 14:08:37,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:37,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:08:37,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:37,906 INFO L124 PetriNetUnfolderBase]: 3671/7571 cut-off events. [2025-02-08 14:08:37,906 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2025-02-08 14:08:37,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12756 conditions, 7571 events. 3671/7571 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65399 event pairs, 2732 based on Foata normal form. 3/5929 useless extension candidates. Maximal degree in co-relation 12749. Up to 5041 conditions per place. [2025-02-08 14:08:37,951 INFO L140 encePairwiseOnDemand]: 119/137 looper letters, 60 selfloop transitions, 12 changer transitions 0/137 dead transitions. [2025-02-08 14:08:37,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 137 transitions, 427 flow [2025-02-08 14:08:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:37,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2025-02-08 14:08:37,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6678832116788321 [2025-02-08 14:08:37,954 INFO L175 Difference]: Start difference. First operand has 124 places, 128 transitions, 265 flow. Second operand 4 states and 366 transitions. [2025-02-08 14:08:37,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 137 transitions, 427 flow [2025-02-08 14:08:37,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 137 transitions, 426 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:37,961 INFO L231 Difference]: Finished difference. Result has 128 places, 137 transitions, 351 flow [2025-02-08 14:08:37,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=351, PETRI_PLACES=128, PETRI_TRANSITIONS=137} [2025-02-08 14:08:37,963 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2025-02-08 14:08:37,963 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 137 transitions, 351 flow [2025-02-08 14:08:37,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2025-02-08 14:08:37,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:37,963 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:08:37,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:08:37,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:37,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1269705812, now seen corresponding path program 1 times [2025-02-08 14:08:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712207170] [2025-02-08 14:08:37,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:37,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:08:37,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:08:37,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:37,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:38,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712207170] [2025-02-08 14:08:38,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712207170] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:38,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:38,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:08:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582225888] [2025-02-08 14:08:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:38,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:08:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:38,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:08:38,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:08:38,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:38,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 137 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-08 14:08:38,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:38,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:38,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:38,995 INFO L124 PetriNetUnfolderBase]: 3671/7569 cut-off events. [2025-02-08 14:08:38,995 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2025-02-08 14:08:39,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12788 conditions, 7569 events. 3671/7569 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65224 event pairs, 2732 based on Foata normal form. 2/5933 useless extension candidates. Maximal degree in co-relation 12779. Up to 5042 conditions per place. [2025-02-08 14:08:39,031 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 67 selfloop transitions, 1 changer transitions 0/135 dead transitions. [2025-02-08 14:08:39,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 135 transitions, 483 flow [2025-02-08 14:08:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:08:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:08:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2025-02-08 14:08:39,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6885644768856448 [2025-02-08 14:08:39,035 INFO L175 Difference]: Start difference. First operand has 128 places, 137 transitions, 351 flow. Second operand 3 states and 283 transitions. [2025-02-08 14:08:39,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 135 transitions, 483 flow [2025-02-08 14:08:39,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 135 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:39,040 INFO L231 Difference]: Finished difference. Result has 127 places, 135 transitions, 340 flow [2025-02-08 14:08:39,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=127, PETRI_TRANSITIONS=135} [2025-02-08 14:08:39,042 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2025-02-08 14:08:39,042 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 135 transitions, 340 flow [2025-02-08 14:08:39,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-08 14:08:39,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:39,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:08:39,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:08:39,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:39,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:39,043 INFO L85 PathProgramCache]: Analyzing trace with hash 706175741, now seen corresponding path program 1 times [2025-02-08 14:08:39,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:39,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955574116] [2025-02-08 14:08:39,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:39,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:08:39,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:08:39,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:39,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:39,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:39,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955574116] [2025-02-08 14:08:39,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955574116] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:39,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:39,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:08:39,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188095903] [2025-02-08 14:08:39,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:39,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:08:39,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:39,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:08:39,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:08:39,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:39,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 135 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-08 14:08:39,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:39,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:39,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:39,705 INFO L124 PetriNetUnfolderBase]: 3671/7567 cut-off events. [2025-02-08 14:08:39,706 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2025-02-08 14:08:39,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12779 conditions, 7567 events. 3671/7567 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65226 event pairs, 2732 based on Foata normal form. 1/5931 useless extension candidates. Maximal degree in co-relation 12769. Up to 5040 conditions per place. [2025-02-08 14:08:39,858 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 65 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2025-02-08 14:08:39,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 133 transitions, 468 flow [2025-02-08 14:08:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:08:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:08:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2025-02-08 14:08:39,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.683698296836983 [2025-02-08 14:08:39,862 INFO L175 Difference]: Start difference. First operand has 127 places, 135 transitions, 340 flow. Second operand 3 states and 281 transitions. [2025-02-08 14:08:39,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 133 transitions, 468 flow [2025-02-08 14:08:39,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 133 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:39,866 INFO L231 Difference]: Finished difference. Result has 126 places, 133 transitions, 337 flow [2025-02-08 14:08:39,866 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=337, PETRI_PLACES=126, PETRI_TRANSITIONS=133} [2025-02-08 14:08:39,868 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2025-02-08 14:08:39,868 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 133 transitions, 337 flow [2025-02-08 14:08:39,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-08 14:08:39,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:39,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:39,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:08:39,869 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:39,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:39,869 INFO L85 PathProgramCache]: Analyzing trace with hash 30096456, now seen corresponding path program 1 times [2025-02-08 14:08:39,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:39,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596251335] [2025-02-08 14:08:39,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:39,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:39,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:08:39,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:08:39,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:39,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:39,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:39,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596251335] [2025-02-08 14:08:39,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596251335] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:39,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:39,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:08:39,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258623151] [2025-02-08 14:08:39,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:39,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:08:39,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:39,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:08:39,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:08:39,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:39,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 133 transitions, 337 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-08 14:08:39,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:39,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:39,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:40,563 INFO L124 PetriNetUnfolderBase]: 3671/7565 cut-off events. [2025-02-08 14:08:40,563 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2025-02-08 14:08:40,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12780 conditions, 7565 events. 3671/7565 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65210 event pairs, 2732 based on Foata normal form. 2/5931 useless extension candidates. Maximal degree in co-relation 12769. Up to 5042 conditions per place. [2025-02-08 14:08:40,600 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 67 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2025-02-08 14:08:40,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 469 flow [2025-02-08 14:08:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:08:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:08:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2025-02-08 14:08:40,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6885644768856448 [2025-02-08 14:08:40,602 INFO L175 Difference]: Start difference. First operand has 126 places, 133 transitions, 337 flow. Second operand 3 states and 283 transitions. [2025-02-08 14:08:40,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 469 flow [2025-02-08 14:08:40,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:40,607 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 334 flow [2025-02-08 14:08:40,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=125, PETRI_TRANSITIONS=131} [2025-02-08 14:08:40,608 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2025-02-08 14:08:40,608 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 334 flow [2025-02-08 14:08:40,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-08 14:08:40,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:40,609 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:40,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:08:40,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:40,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash 30845201, now seen corresponding path program 1 times [2025-02-08 14:08:40,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:40,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106871566] [2025-02-08 14:08:40,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:40,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:40,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:08:40,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:08:40,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:40,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:40,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:40,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106871566] [2025-02-08 14:08:40,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106871566] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:40,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159900904] [2025-02-08 14:08:40,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:40,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:40,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:40,724 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) [2025-02-08 14:08:40,725 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 [2025-02-08 14:08:40,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:08:40,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:08:40,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:40,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:40,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:08:40,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:40,856 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:08:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159900904] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:40,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:08:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-08 14:08:40,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397494350] [2025-02-08 14:08:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:40,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:40,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:40,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:40,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:08:40,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:08:40,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 131 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2025-02-08 14:08:40,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:40,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:08:40,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:41,617 INFO L124 PetriNetUnfolderBase]: 3671/7562 cut-off events. [2025-02-08 14:08:41,618 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2025-02-08 14:08:41,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12776 conditions, 7562 events. 3671/7562 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65222 event pairs, 2732 based on Foata normal form. 3/5927 useless extension candidates. Maximal degree in co-relation 12764. Up to 5026 conditions per place. [2025-02-08 14:08:41,660 INFO L140 encePairwiseOnDemand]: 122/137 looper letters, 48 selfloop transitions, 21 changer transitions 0/128 dead transitions. [2025-02-08 14:08:41,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 128 transitions, 460 flow [2025-02-08 14:08:41,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 504 transitions. [2025-02-08 14:08:41,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6131386861313869 [2025-02-08 14:08:41,663 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 334 flow. Second operand 6 states and 504 transitions. [2025-02-08 14:08:41,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 128 transitions, 460 flow [2025-02-08 14:08:41,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 128 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:41,666 INFO L231 Difference]: Finished difference. Result has 126 places, 128 transitions, 363 flow [2025-02-08 14:08:41,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=126, PETRI_TRANSITIONS=128} [2025-02-08 14:08:41,667 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2025-02-08 14:08:41,667 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 128 transitions, 363 flow [2025-02-08 14:08:41,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2025-02-08 14:08:41,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:41,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:41,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:08:41,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:41,869 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:41,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:41,870 INFO L85 PathProgramCache]: Analyzing trace with hash 932991297, now seen corresponding path program 1 times [2025-02-08 14:08:41,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:41,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815029689] [2025-02-08 14:08:41,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:41,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:41,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:08:41,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:08:41,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:41,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:41,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:41,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:41,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815029689] [2025-02-08 14:08:41,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815029689] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:41,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:41,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:08:41,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276332433] [2025-02-08 14:08:41,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:41,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:08:41,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:41,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:08:41,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:08:41,942 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:41,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-08 14:08:41,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:41,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:41,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:42,670 INFO L124 PetriNetUnfolderBase]: 3671/7560 cut-off events. [2025-02-08 14:08:42,671 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2025-02-08 14:08:42,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12792 conditions, 7560 events. 3671/7560 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 65184 event pairs, 2732 based on Foata normal form. 1/5926 useless extension candidates. Maximal degree in co-relation 12780. Up to 5040 conditions per place. [2025-02-08 14:08:42,726 INFO L140 encePairwiseOnDemand]: 134/137 looper letters, 65 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2025-02-08 14:08:42,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 126 transitions, 491 flow [2025-02-08 14:08:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:08:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:08:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2025-02-08 14:08:42,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.683698296836983 [2025-02-08 14:08:42,728 INFO L175 Difference]: Start difference. First operand has 126 places, 128 transitions, 363 flow. Second operand 3 states and 281 transitions. [2025-02-08 14:08:42,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 126 transitions, 491 flow [2025-02-08 14:08:42,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 126 transitions, 446 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-02-08 14:08:42,732 INFO L231 Difference]: Finished difference. Result has 122 places, 126 transitions, 316 flow [2025-02-08 14:08:42,732 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=122, PETRI_TRANSITIONS=126} [2025-02-08 14:08:42,732 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -8 predicate places. [2025-02-08 14:08:42,733 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 126 transitions, 316 flow [2025-02-08 14:08:42,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-08 14:08:42,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:42,733 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:08:42,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:08:42,733 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:42,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:42,734 INFO L85 PathProgramCache]: Analyzing trace with hash 956202409, now seen corresponding path program 1 times [2025-02-08 14:08:42,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:42,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516299211] [2025-02-08 14:08:42,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:42,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:42,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:08:42,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:08:42,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:42,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:42,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:42,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516299211] [2025-02-08 14:08:42,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516299211] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:42,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256904186] [2025-02-08 14:08:42,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:42,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:42,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:42,819 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) [2025-02-08 14:08:42,822 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 [2025-02-08 14:08:42,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:08:42,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:08:42,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:42,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:42,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:08:42,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:42,928 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:42,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256904186] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:42,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:42,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:08:42,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832937082] [2025-02-08 14:08:42,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:42,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:08:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:42,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:08:42,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:08:43,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:08:43,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 126 transitions, 316 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2025-02-08 14:08:43,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:43,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:08:43,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:43,866 INFO L124 PetriNetUnfolderBase]: 3680/7596 cut-off events. [2025-02-08 14:08:43,866 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2025-02-08 14:08:43,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12861 conditions, 7596 events. 3680/7596 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 65276 event pairs, 2732 based on Foata normal form. 9/5961 useless extension candidates. Maximal degree in co-relation 12849. Up to 5047 conditions per place. [2025-02-08 14:08:43,895 INFO L140 encePairwiseOnDemand]: 122/137 looper letters, 57 selfloop transitions, 39 changer transitions 0/153 dead transitions. [2025-02-08 14:08:43,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 625 flow [2025-02-08 14:08:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:08:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:08:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 825 transitions. [2025-02-08 14:08:43,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021897810218978 [2025-02-08 14:08:43,899 INFO L175 Difference]: Start difference. First operand has 122 places, 126 transitions, 316 flow. Second operand 10 states and 825 transitions. [2025-02-08 14:08:43,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 625 flow [2025-02-08 14:08:43,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 153 transitions, 624 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:43,902 INFO L231 Difference]: Finished difference. Result has 133 places, 153 transitions, 564 flow [2025-02-08 14:08:43,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=564, PETRI_PLACES=133, PETRI_TRANSITIONS=153} [2025-02-08 14:08:43,903 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2025-02-08 14:08:43,903 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 153 transitions, 564 flow [2025-02-08 14:08:43,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2025-02-08 14:08:43,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:43,904 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:43,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 14:08:44,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:44,105 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:44,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:44,105 INFO L85 PathProgramCache]: Analyzing trace with hash 486744589, now seen corresponding path program 1 times [2025-02-08 14:08:44,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:44,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559625488] [2025-02-08 14:08:44,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:44,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:44,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:44,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:44,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:44,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559625488] [2025-02-08 14:08:44,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559625488] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:44,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:44,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:44,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312944147] [2025-02-08 14:08:44,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:44,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:44,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:44,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:44,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:44,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:08:44,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 153 transitions, 564 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:44,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:44,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:08:44,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:44,686 INFO L124 PetriNetUnfolderBase]: 3683/7608 cut-off events. [2025-02-08 14:08:44,687 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2025-02-08 14:08:44,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12954 conditions, 7608 events. 3683/7608 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 65347 event pairs, 2732 based on Foata normal form. 3/5973 useless extension candidates. Maximal degree in co-relation 12939. Up to 5077 conditions per place. [2025-02-08 14:08:44,719 INFO L140 encePairwiseOnDemand]: 119/137 looper letters, 96 selfloop transitions, 12 changer transitions 0/162 dead transitions. [2025-02-08 14:08:44,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 162 transitions, 798 flow [2025-02-08 14:08:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2025-02-08 14:08:44,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6678832116788321 [2025-02-08 14:08:44,721 INFO L175 Difference]: Start difference. First operand has 133 places, 153 transitions, 564 flow. Second operand 4 states and 366 transitions. [2025-02-08 14:08:44,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 162 transitions, 798 flow [2025-02-08 14:08:44,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 162 transitions, 765 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:44,725 INFO L231 Difference]: Finished difference. Result has 136 places, 162 transitions, 618 flow [2025-02-08 14:08:44,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=618, PETRI_PLACES=136, PETRI_TRANSITIONS=162} [2025-02-08 14:08:44,726 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2025-02-08 14:08:44,727 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 162 transitions, 618 flow [2025-02-08 14:08:44,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:44,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:44,728 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:44,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:08:44,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:44,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash 799727423, now seen corresponding path program 1 times [2025-02-08 14:08:44,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:44,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8991016] [2025-02-08 14:08:44,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:44,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:44,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:08:44,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:08:44,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:44,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:08:44,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:44,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8991016] [2025-02-08 14:08:44,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8991016] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:44,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:44,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:44,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902776687] [2025-02-08 14:08:44,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:44,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:44,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:44,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:44,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:44,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:44,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 162 transitions, 618 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2025-02-08 14:08:44,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:44,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:44,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:45,353 INFO L124 PetriNetUnfolderBase]: 3682/7607 cut-off events. [2025-02-08 14:08:45,353 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2025-02-08 14:08:45,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12969 conditions, 7607 events. 3682/7607 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 65342 event pairs, 2732 based on Foata normal form. 1/5976 useless extension candidates. Maximal degree in co-relation 12951. Up to 5073 conditions per place. [2025-02-08 14:08:45,378 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 98 selfloop transitions, 3 changer transitions 0/161 dead transitions. [2025-02-08 14:08:45,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 161 transitions, 816 flow [2025-02-08 14:08:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2025-02-08 14:08:45,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6496350364963503 [2025-02-08 14:08:45,379 INFO L175 Difference]: Start difference. First operand has 136 places, 162 transitions, 618 flow. Second operand 4 states and 356 transitions. [2025-02-08 14:08:45,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 161 transitions, 816 flow [2025-02-08 14:08:45,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 161 transitions, 807 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:45,383 INFO L231 Difference]: Finished difference. Result has 138 places, 161 transitions, 611 flow [2025-02-08 14:08:45,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=611, PETRI_PLACES=138, PETRI_TRANSITIONS=161} [2025-02-08 14:08:45,384 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2025-02-08 14:08:45,384 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 161 transitions, 611 flow [2025-02-08 14:08:45,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2025-02-08 14:08:45,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:45,385 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2025-02-08 14:08:45,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:08:45,385 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:45,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash -167977845, now seen corresponding path program 2 times [2025-02-08 14:08:45,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:45,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905742672] [2025-02-08 14:08:45,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:45,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:45,395 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 14:08:45,399 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-08 14:08:45,400 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:45,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:08:45,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905742672] [2025-02-08 14:08:45,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905742672] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270541686] [2025-02-08 14:08:45,447 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:45,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:45,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:45,449 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) [2025-02-08 14:08:45,452 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 [2025-02-08 14:08:45,514 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 14:08:45,527 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-08 14:08:45,527 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:45,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:45,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:08:45,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:08:45,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:08:45,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270541686] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:45,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:45,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-08 14:08:45,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39320940] [2025-02-08 14:08:45,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:45,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:45,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:45,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:45,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:45,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 137 [2025-02-08 14:08:45,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 161 transitions, 611 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:45,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:45,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 137 [2025-02-08 14:08:45,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:46,254 INFO L124 PetriNetUnfolderBase]: 3682/7604 cut-off events. [2025-02-08 14:08:46,254 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2025-02-08 14:08:46,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12951 conditions, 7604 events. 3682/7604 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 65333 event pairs, 2732 based on Foata normal form. 3/5975 useless extension candidates. Maximal degree in co-relation 12932. Up to 5042 conditions per place. [2025-02-08 14:08:46,320 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 53 selfloop transitions, 48 changer transitions 0/158 dead transitions. [2025-02-08 14:08:46,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 158 transitions, 783 flow [2025-02-08 14:08:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 400 transitions. [2025-02-08 14:08:46,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.583941605839416 [2025-02-08 14:08:46,323 INFO L175 Difference]: Start difference. First operand has 138 places, 161 transitions, 611 flow. Second operand 5 states and 400 transitions. [2025-02-08 14:08:46,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 158 transitions, 783 flow [2025-02-08 14:08:46,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 158 transitions, 749 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 14:08:46,328 INFO L231 Difference]: Finished difference. Result has 133 places, 158 transitions, 643 flow [2025-02-08 14:08:46,328 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=643, PETRI_PLACES=133, PETRI_TRANSITIONS=158} [2025-02-08 14:08:46,330 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2025-02-08 14:08:46,330 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 158 transitions, 643 flow [2025-02-08 14:08:46,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:46,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:46,332 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:46,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:46,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:46,536 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:46,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:46,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1340307681, now seen corresponding path program 1 times [2025-02-08 14:08:46,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:46,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586016755] [2025-02-08 14:08:46,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:46,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:46,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:08:46,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:08:46,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:46,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:08:46,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:46,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586016755] [2025-02-08 14:08:46,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586016755] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:46,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:46,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:46,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701583768] [2025-02-08 14:08:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:46,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:46,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:46,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:46,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:46,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:46,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 158 transitions, 643 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2025-02-08 14:08:46,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:46,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:46,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:47,303 INFO L124 PetriNetUnfolderBase]: 3681/7603 cut-off events. [2025-02-08 14:08:47,303 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2025-02-08 14:08:47,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12974 conditions, 7603 events. 3681/7603 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 65266 event pairs, 2732 based on Foata normal form. 0/5961 useless extension candidates. Maximal degree in co-relation 12959. Up to 5072 conditions per place. [2025-02-08 14:08:47,339 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 97 selfloop transitions, 3 changer transitions 0/157 dead transitions. [2025-02-08 14:08:47,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 837 flow [2025-02-08 14:08:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:47,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2025-02-08 14:08:47,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6496350364963503 [2025-02-08 14:08:47,341 INFO L175 Difference]: Start difference. First operand has 133 places, 158 transitions, 643 flow. Second operand 4 states and 356 transitions. [2025-02-08 14:08:47,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 837 flow [2025-02-08 14:08:47,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 157 transitions, 743 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:08:47,345 INFO L231 Difference]: Finished difference. Result has 132 places, 157 transitions, 549 flow [2025-02-08 14:08:47,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=549, PETRI_PLACES=132, PETRI_TRANSITIONS=157} [2025-02-08 14:08:47,347 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2025-02-08 14:08:47,347 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 157 transitions, 549 flow [2025-02-08 14:08:47,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2025-02-08 14:08:47,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:47,348 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:47,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:08:47,348 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:47,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:47,349 INFO L85 PathProgramCache]: Analyzing trace with hash -606122415, now seen corresponding path program 1 times [2025-02-08 14:08:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055536271] [2025-02-08 14:08:47,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:47,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:47,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 14:08:47,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:08:47,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:47,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:47,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:08:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055536271] [2025-02-08 14:08:47,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055536271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:47,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:47,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:47,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051156474] [2025-02-08 14:08:47,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:47,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:47,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:47,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:47,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:47,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:47,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 157 transitions, 549 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2025-02-08 14:08:47,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:47,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:47,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:47,993 INFO L124 PetriNetUnfolderBase]: 3680/7602 cut-off events. [2025-02-08 14:08:47,994 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2025-02-08 14:08:48,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12927 conditions, 7602 events. 3680/7602 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 65158 event pairs, 2732 based on Foata normal form. 0/5961 useless extension candidates. Maximal degree in co-relation 12912. Up to 5071 conditions per place. [2025-02-08 14:08:48,023 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 96 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2025-02-08 14:08:48,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 156 transitions, 743 flow [2025-02-08 14:08:48,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2025-02-08 14:08:48,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6496350364963503 [2025-02-08 14:08:48,025 INFO L175 Difference]: Start difference. First operand has 132 places, 157 transitions, 549 flow. Second operand 4 states and 356 transitions. [2025-02-08 14:08:48,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 156 transitions, 743 flow [2025-02-08 14:08:48,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 156 transitions, 739 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:48,028 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 547 flow [2025-02-08 14:08:48,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=547, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2025-02-08 14:08:48,029 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2025-02-08 14:08:48,029 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 547 flow [2025-02-08 14:08:48,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2025-02-08 14:08:48,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:48,030 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:48,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:08:48,030 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:48,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:48,030 INFO L85 PathProgramCache]: Analyzing trace with hash 315129742, now seen corresponding path program 1 times [2025-02-08 14:08:48,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:48,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868326427] [2025-02-08 14:08:48,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:48,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:48,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:08:48,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:08:48,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:48,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:08:48,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:48,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868326427] [2025-02-08 14:08:48,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868326427] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:48,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073675220] [2025-02-08 14:08:48,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:48,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:48,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:48,143 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) [2025-02-08 14:08:48,148 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 [2025-02-08 14:08:48,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 14:08:48,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:08:48,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:48,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:48,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 14:08:48,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:08:48,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:08:48,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073675220] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:48,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:48,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-02-08 14:08:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44125365] [2025-02-08 14:08:48,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:48,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:08:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:48,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:08:48,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:08:48,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 137 [2025-02-08 14:08:48,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 547 flow. Second operand has 19 states, 19 states have (on average 64.26315789473684) internal successors, (1221), 19 states have internal predecessors, (1221), 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) [2025-02-08 14:08:48,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:48,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 137 [2025-02-08 14:08:48,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:50,395 INFO L124 PetriNetUnfolderBase]: 7354/15172 cut-off events. [2025-02-08 14:08:50,396 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2025-02-08 14:08:50,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25764 conditions, 15172 events. 7354/15172 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 144874 event pairs, 5464 based on Foata normal form. 5/12009 useless extension candidates. Maximal degree in co-relation 25749. Up to 5043 conditions per place. [2025-02-08 14:08:50,473 INFO L140 encePairwiseOnDemand]: 114/137 looper letters, 114 selfloop transitions, 71 changer transitions 0/236 dead transitions. [2025-02-08 14:08:50,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 236 transitions, 1233 flow [2025-02-08 14:08:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 14:08:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 14:08:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1257 transitions. [2025-02-08 14:08:50,478 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5097323600973236 [2025-02-08 14:08:50,478 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 547 flow. Second operand 18 states and 1257 transitions. [2025-02-08 14:08:50,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 236 transitions, 1233 flow [2025-02-08 14:08:50,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 236 transitions, 1227 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:50,483 INFO L231 Difference]: Finished difference. Result has 147 places, 192 transitions, 974 flow [2025-02-08 14:08:50,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=974, PETRI_PLACES=147, PETRI_TRANSITIONS=192} [2025-02-08 14:08:50,484 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 17 predicate places. [2025-02-08 14:08:50,484 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 192 transitions, 974 flow [2025-02-08 14:08:50,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.26315789473684) internal successors, (1221), 19 states have internal predecessors, (1221), 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) [2025-02-08 14:08:50,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:50,485 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:50,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:50,690 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,SelfDestructingSolverStorable14 [2025-02-08 14:08:50,690 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:50,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1745743441, now seen corresponding path program 1 times [2025-02-08 14:08:50,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:50,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449877029] [2025-02-08 14:08:50,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:50,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:08:50,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:08:50,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:50,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-08 14:08:50,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:50,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449877029] [2025-02-08 14:08:50,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449877029] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:50,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143613737] [2025-02-08 14:08:50,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:50,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:50,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:50,809 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) [2025-02-08 14:08:50,812 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 [2025-02-08 14:08:50,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:08:50,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:08:50,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:50,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:50,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:08:50,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-08 14:08:50,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-08 14:08:50,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143613737] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:50,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:50,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:08:50,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536559935] [2025-02-08 14:08:50,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:50,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:08:50,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:50,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:08:50,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:08:51,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:08:51,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 192 transitions, 974 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2025-02-08 14:08:51,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:51,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:08:51,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:51,959 INFO L124 PetriNetUnfolderBase]: 7369/15232 cut-off events. [2025-02-08 14:08:51,959 INFO L125 PetriNetUnfolderBase]: For 459/459 co-relation queries the response was YES. [2025-02-08 14:08:51,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26078 conditions, 15232 events. 7369/15232 cut-off events. For 459/459 co-relation queries the response was YES. Maximal size of possible extension queue 886. Compared 145718 event pairs, 5464 based on Foata normal form. 15/11987 useless extension candidates. Maximal degree in co-relation 26063. Up to 10136 conditions per place. [2025-02-08 14:08:52,021 INFO L140 encePairwiseOnDemand]: 122/137 looper letters, 116 selfloop transitions, 70 changer transitions 0/237 dead transitions. [2025-02-08 14:08:52,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 237 transitions, 1625 flow [2025-02-08 14:08:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:08:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:08:52,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 825 transitions. [2025-02-08 14:08:52,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6021897810218978 [2025-02-08 14:08:52,023 INFO L175 Difference]: Start difference. First operand has 147 places, 192 transitions, 974 flow. Second operand 10 states and 825 transitions. [2025-02-08 14:08:52,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 237 transitions, 1625 flow [2025-02-08 14:08:52,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 237 transitions, 1493 flow, removed 41 selfloop flow, removed 4 redundant places. [2025-02-08 14:08:52,030 INFO L231 Difference]: Finished difference. Result has 155 places, 237 transitions, 1339 flow [2025-02-08 14:08:52,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1339, PETRI_PLACES=155, PETRI_TRANSITIONS=237} [2025-02-08 14:08:52,030 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 25 predicate places. [2025-02-08 14:08:52,031 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 237 transitions, 1339 flow [2025-02-08 14:08:52,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2025-02-08 14:08:52,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:52,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:52,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 14:08:52,233 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,SelfDestructingSolverStorable15 [2025-02-08 14:08:52,233 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:52,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash -832242736, now seen corresponding path program 1 times [2025-02-08 14:08:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:52,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669518592] [2025-02-08 14:08:52,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:52,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:52,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-08 14:08:52,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 14:08:52,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:52,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:08:52,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:52,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669518592] [2025-02-08 14:08:52,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669518592] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:52,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:52,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:52,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473219636] [2025-02-08 14:08:52,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:52,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:52,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:52,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:52,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:52,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:08:52,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 237 transitions, 1339 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2025-02-08 14:08:52,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:52,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:08:52,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:53,956 INFO L124 PetriNetUnfolderBase]: 15289/28114 cut-off events. [2025-02-08 14:08:53,957 INFO L125 PetriNetUnfolderBase]: For 514/514 co-relation queries the response was YES. [2025-02-08 14:08:54,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50243 conditions, 28114 events. 15289/28114 cut-off events. For 514/514 co-relation queries the response was YES. Maximal size of possible extension queue 1564. Compared 265723 event pairs, 4946 based on Foata normal form. 728/23416 useless extension candidates. Maximal degree in co-relation 50225. Up to 9562 conditions per place. [2025-02-08 14:08:54,192 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 230 selfloop transitions, 4 changer transitions 0/282 dead transitions. [2025-02-08 14:08:54,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 282 transitions, 1903 flow [2025-02-08 14:08:54,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:54,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2025-02-08 14:08:54,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7281021897810219 [2025-02-08 14:08:54,194 INFO L175 Difference]: Start difference. First operand has 155 places, 237 transitions, 1339 flow. Second operand 4 states and 399 transitions. [2025-02-08 14:08:54,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 282 transitions, 1903 flow [2025-02-08 14:08:54,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 282 transitions, 1843 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:54,202 INFO L231 Difference]: Finished difference. Result has 158 places, 238 transitions, 1305 flow [2025-02-08 14:08:54,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1277, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1305, PETRI_PLACES=158, PETRI_TRANSITIONS=238} [2025-02-08 14:08:54,203 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 28 predicate places. [2025-02-08 14:08:54,203 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 238 transitions, 1305 flow [2025-02-08 14:08:54,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2025-02-08 14:08:54,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:54,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:54,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:08:54,204 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:54,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash -29719743, now seen corresponding path program 1 times [2025-02-08 14:08:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750724681] [2025-02-08 14:08:54,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:54,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 14:08:54,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 14:08:54,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:54,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 14:08:54,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:54,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750724681] [2025-02-08 14:08:54,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750724681] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:54,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:54,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:54,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420624028] [2025-02-08 14:08:54,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:54,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:54,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:54,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:54,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:54,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:54,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 238 transitions, 1305 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2025-02-08 14:08:54,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:54,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:54,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:55,808 INFO L124 PetriNetUnfolderBase]: 9903/20812 cut-off events. [2025-02-08 14:08:55,808 INFO L125 PetriNetUnfolderBase]: For 2689/3221 co-relation queries the response was YES. [2025-02-08 14:08:55,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37409 conditions, 20812 events. 9903/20812 cut-off events. For 2689/3221 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 211446 event pairs, 7818 based on Foata normal form. 272/17128 useless extension candidates. Maximal degree in co-relation 37388. Up to 13795 conditions per place. [2025-02-08 14:08:55,933 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 177 selfloop transitions, 5 changer transitions 0/236 dead transitions. [2025-02-08 14:08:55,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 236 transitions, 1658 flow [2025-02-08 14:08:55,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2025-02-08 14:08:55,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6496350364963503 [2025-02-08 14:08:55,935 INFO L175 Difference]: Start difference. First operand has 158 places, 238 transitions, 1305 flow. Second operand 4 states and 356 transitions. [2025-02-08 14:08:55,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 236 transitions, 1658 flow [2025-02-08 14:08:55,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 236 transitions, 1658 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:55,948 INFO L231 Difference]: Finished difference. Result has 161 places, 236 transitions, 1304 flow [2025-02-08 14:08:55,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1294, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1304, PETRI_PLACES=161, PETRI_TRANSITIONS=236} [2025-02-08 14:08:55,948 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 31 predicate places. [2025-02-08 14:08:55,948 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 236 transitions, 1304 flow [2025-02-08 14:08:55,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2025-02-08 14:08:55,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:55,949 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:55,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:08:55,949 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:55,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:55,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1739490863, now seen corresponding path program 1 times [2025-02-08 14:08:55,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:55,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711827470] [2025-02-08 14:08:55,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:55,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:55,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 14:08:55,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 14:08:55,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:55,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:08:56,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:56,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711827470] [2025-02-08 14:08:56,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711827470] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:56,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:56,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:56,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240897075] [2025-02-08 14:08:56,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:56,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:56,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:56,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:56,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:56,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:08:56,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 236 transitions, 1304 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-08 14:08:56,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:56,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:08:56,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:57,553 INFO L124 PetriNetUnfolderBase]: 9901/20810 cut-off events. [2025-02-08 14:08:57,554 INFO L125 PetriNetUnfolderBase]: For 2699/3231 co-relation queries the response was YES. [2025-02-08 14:08:57,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37407 conditions, 20810 events. 9901/20810 cut-off events. For 2699/3231 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 211328 event pairs, 7818 based on Foata normal form. 272/17126 useless extension candidates. Maximal degree in co-relation 37384. Up to 13793 conditions per place. [2025-02-08 14:08:57,769 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 175 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2025-02-08 14:08:57,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 234 transitions, 1653 flow [2025-02-08 14:08:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2025-02-08 14:08:57,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6496350364963503 [2025-02-08 14:08:57,770 INFO L175 Difference]: Start difference. First operand has 161 places, 236 transitions, 1304 flow. Second operand 4 states and 356 transitions. [2025-02-08 14:08:57,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 234 transitions, 1653 flow [2025-02-08 14:08:57,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 234 transitions, 1647 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:57,780 INFO L231 Difference]: Finished difference. Result has 162 places, 234 transitions, 1297 flow [2025-02-08 14:08:57,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1297, PETRI_PLACES=162, PETRI_TRANSITIONS=234} [2025-02-08 14:08:57,781 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 32 predicate places. [2025-02-08 14:08:57,781 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 234 transitions, 1297 flow [2025-02-08 14:08:57,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-08 14:08:57,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:57,781 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:57,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:08:57,781 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:08:57,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:57,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2071271491, now seen corresponding path program 2 times [2025-02-08 14:08:57,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:57,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195076808] [2025-02-08 14:08:57,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:57,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:57,793 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-08 14:08:57,799 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 39 statements. [2025-02-08 14:08:57,799 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:57,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-08 14:08:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:57,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195076808] [2025-02-08 14:08:57,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195076808] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:57,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478106984] [2025-02-08 14:08:57,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:08:57,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:57,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:57,868 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) [2025-02-08 14:08:57,870 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 [2025-02-08 14:08:57,953 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-08 14:08:57,975 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 39 statements. [2025-02-08 14:08:57,975 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:08:57,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:57,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:08:57,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-08 14:08:58,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-08 14:08:58,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478106984] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:58,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:58,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 4 [2025-02-08 14:08:58,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543769084] [2025-02-08 14:08:58,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:58,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:58,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:58,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:58,124 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 137 [2025-02-08 14:08:58,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 234 transitions, 1297 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-02-08 14:08:58,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:58,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 137 [2025-02-08 14:08:58,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:00,034 INFO L124 PetriNetUnfolderBase]: 9901/20805 cut-off events. [2025-02-08 14:09:00,035 INFO L125 PetriNetUnfolderBase]: For 2723/3255 co-relation queries the response was YES. [2025-02-08 14:09:00,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37384 conditions, 20805 events. 9901/20805 cut-off events. For 2723/3255 co-relation queries the response was YES. Maximal size of possible extension queue 1191. Compared 211187 event pairs, 7818 based on Foata normal form. 275/17124 useless extension candidates. Maximal degree in co-relation 37361. Up to 13739 conditions per place. [2025-02-08 14:09:00,256 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 98 selfloop transitions, 82 changer transitions 0/231 dead transitions. [2025-02-08 14:09:00,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 231 transitions, 1627 flow [2025-02-08 14:09:00,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 400 transitions. [2025-02-08 14:09:00,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.583941605839416 [2025-02-08 14:09:00,257 INFO L175 Difference]: Start difference. First operand has 162 places, 234 transitions, 1297 flow. Second operand 5 states and 400 transitions. [2025-02-08 14:09:00,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 231 transitions, 1627 flow [2025-02-08 14:09:00,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 231 transitions, 1569 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-02-08 14:09:00,280 INFO L231 Difference]: Finished difference. Result has 157 places, 231 transitions, 1373 flow [2025-02-08 14:09:00,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1209, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1373, PETRI_PLACES=157, PETRI_TRANSITIONS=231} [2025-02-08 14:09:00,282 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 27 predicate places. [2025-02-08 14:09:00,282 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 231 transitions, 1373 flow [2025-02-08 14:09:00,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-02-08 14:09:00,282 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:00,282 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:00,290 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 [2025-02-08 14:09:00,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:00,486 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:09:00,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash 847798325, now seen corresponding path program 1 times [2025-02-08 14:09:00,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:00,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13641378] [2025-02-08 14:09:00,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:00,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:00,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 14:09:00,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 14:09:00,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:00,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:09:00,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:00,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13641378] [2025-02-08 14:09:00,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13641378] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:00,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:00,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:00,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25613287] [2025-02-08 14:09:00,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:00,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:00,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:00,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:00,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:00,698 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 137 [2025-02-08 14:09:00,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 231 transitions, 1373 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2025-02-08 14:09:00,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:00,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 137 [2025-02-08 14:09:00,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:02,338 INFO L124 PetriNetUnfolderBase]: 9899/20803 cut-off events. [2025-02-08 14:09:02,338 INFO L125 PetriNetUnfolderBase]: For 2746/3278 co-relation queries the response was YES. [2025-02-08 14:09:02,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37423 conditions, 20803 events. 9899/20803 cut-off events. For 2746/3278 co-relation queries the response was YES. Maximal size of possible extension queue 1191. Compared 211040 event pairs, 7818 based on Foata normal form. 271/17112 useless extension candidates. Maximal degree in co-relation 37404. Up to 13791 conditions per place. [2025-02-08 14:09:02,461 INFO L140 encePairwiseOnDemand]: 133/137 looper letters, 173 selfloop transitions, 5 changer transitions 0/229 dead transitions. [2025-02-08 14:09:02,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 229 transitions, 1714 flow [2025-02-08 14:09:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2025-02-08 14:09:02,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6496350364963503 [2025-02-08 14:09:02,462 INFO L175 Difference]: Start difference. First operand has 157 places, 231 transitions, 1373 flow. Second operand 4 states and 356 transitions. [2025-02-08 14:09:02,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 229 transitions, 1714 flow [2025-02-08 14:09:02,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 229 transitions, 1554 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:09:02,469 INFO L231 Difference]: Finished difference. Result has 156 places, 229 transitions, 1208 flow [2025-02-08 14:09:02,469 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1208, PETRI_PLACES=156, PETRI_TRANSITIONS=229} [2025-02-08 14:09:02,469 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 26 predicate places. [2025-02-08 14:09:02,470 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 229 transitions, 1208 flow [2025-02-08 14:09:02,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2025-02-08 14:09:02,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:02,470 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:02,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 14:09:02,470 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:09:02,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1820952083, now seen corresponding path program 1 times [2025-02-08 14:09:02,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:02,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831249932] [2025-02-08 14:09:02,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:02,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:02,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:02,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:02,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:02,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:09:03,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:03,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831249932] [2025-02-08 14:09:03,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831249932] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:03,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129962863] [2025-02-08 14:09:03,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:03,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:03,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:03,195 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) [2025-02-08 14:09:03,197 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 [2025-02-08 14:09:03,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:03,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:03,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:03,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:03,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-02-08 14:09:03,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:03,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:09:03,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:09:03,523 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:09:03,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:09:03,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:09:03,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-08 14:09:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:09:03,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:03,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:09:03,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2025-02-08 14:09:03,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:09:03,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2025-02-08 14:09:03,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-02-08 14:09:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:09:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129962863] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:04,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:04,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:09:04,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489135480] [2025-02-08 14:09:04,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:04,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:09:04,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:04,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:09:04,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=278, Unknown=5, NotChecked=0, Total=342 [2025-02-08 14:09:05,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 137 [2025-02-08 14:09:05,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 229 transitions, 1208 flow. Second operand has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2025-02-08 14:09:05,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:05,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 137 [2025-02-08 14:09:05,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:15,984 INFO L124 PetriNetUnfolderBase]: 74661/115813 cut-off events. [2025-02-08 14:09:15,984 INFO L125 PetriNetUnfolderBase]: For 10142/10584 co-relation queries the response was YES. [2025-02-08 14:09:16,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234141 conditions, 115813 events. 74661/115813 cut-off events. For 10142/10584 co-relation queries the response was YES. Maximal size of possible extension queue 5105. Compared 1035113 event pairs, 16966 based on Foata normal form. 442/98875 useless extension candidates. Maximal degree in co-relation 234122. Up to 26138 conditions per place. [2025-02-08 14:09:16,841 INFO L140 encePairwiseOnDemand]: 121/137 looper letters, 507 selfloop transitions, 103 changer transitions 0/647 dead transitions. [2025-02-08 14:09:16,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 647 transitions, 4279 flow [2025-02-08 14:09:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 14:09:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-08 14:09:16,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1512 transitions. [2025-02-08 14:09:16,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5016589250165893 [2025-02-08 14:09:16,845 INFO L175 Difference]: Start difference. First operand has 156 places, 229 transitions, 1208 flow. Second operand 22 states and 1512 transitions. [2025-02-08 14:09:16,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 647 transitions, 4279 flow [2025-02-08 14:09:17,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 647 transitions, 4265 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:17,173 INFO L231 Difference]: Finished difference. Result has 180 places, 282 transitions, 1929 flow [2025-02-08 14:09:17,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1929, PETRI_PLACES=180, PETRI_TRANSITIONS=282} [2025-02-08 14:09:17,173 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 50 predicate places. [2025-02-08 14:09:17,173 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 282 transitions, 1929 flow [2025-02-08 14:09:17,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2025-02-08 14:09:17,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:17,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:17,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 14:09:17,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:17,375 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:09:17,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:17,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1560819988, now seen corresponding path program 1 times [2025-02-08 14:09:17,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:17,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565827511] [2025-02-08 14:09:17,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:17,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:17,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:09:17,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:09:17,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:17,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:17,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 14:09:17,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:17,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565827511] [2025-02-08 14:09:17,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565827511] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:17,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:17,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:17,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507102799] [2025-02-08 14:09:17,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:17,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:17,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:17,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:17,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:17,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 137 [2025-02-08 14:09:17,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 282 transitions, 1929 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-08 14:09:17,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:17,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 137 [2025-02-08 14:09:17,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:28,536 INFO L124 PetriNetUnfolderBase]: 68077/126201 cut-off events. [2025-02-08 14:09:28,536 INFO L125 PetriNetUnfolderBase]: For 34300/38520 co-relation queries the response was YES. [2025-02-08 14:09:29,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247634 conditions, 126201 events. 68077/126201 cut-off events. For 34300/38520 co-relation queries the response was YES. Maximal size of possible extension queue 6121. Compared 1434903 event pairs, 25142 based on Foata normal form. 4916/111057 useless extension candidates. Maximal degree in co-relation 247610. Up to 42010 conditions per place. [2025-02-08 14:09:29,585 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 286 selfloop transitions, 4 changer transitions 0/337 dead transitions. [2025-02-08 14:09:29,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 337 transitions, 2715 flow [2025-02-08 14:09:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2025-02-08 14:09:29,587 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7244525547445255 [2025-02-08 14:09:29,587 INFO L175 Difference]: Start difference. First operand has 180 places, 282 transitions, 1929 flow. Second operand 4 states and 397 transitions. [2025-02-08 14:09:29,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 337 transitions, 2715 flow [2025-02-08 14:09:29,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 337 transitions, 2711 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:29,812 INFO L231 Difference]: Finished difference. Result has 183 places, 283 transitions, 1951 flow [2025-02-08 14:09:29,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1951, PETRI_PLACES=183, PETRI_TRANSITIONS=283} [2025-02-08 14:09:29,813 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 53 predicate places. [2025-02-08 14:09:29,813 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 283 transitions, 1951 flow [2025-02-08 14:09:29,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-08 14:09:29,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:29,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:29,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-08 14:09:29,813 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-08 14:09:29,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:29,816 INFO L85 PathProgramCache]: Analyzing trace with hash 614910274, now seen corresponding path program 1 times [2025-02-08 14:09:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:29,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560662207] [2025-02-08 14:09:29,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:29,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:09:29,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:09:29,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:29,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:09:30,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:30,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560662207] [2025-02-08 14:09:30,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560662207] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:30,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200655004] [2025-02-08 14:09:30,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:30,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:30,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:30,686 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) [2025-02-08 14:09:30,688 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 [2025-02-08 14:09:30,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:09:30,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:09:30,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:30,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:30,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-02-08 14:09:30,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:30,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:09:30,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:09:31,008 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:09:31,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:09:31,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-02-08 14:09:31,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-02-08 14:09:31,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:09:31,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:31,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:09:31,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2025-02-08 14:09:31,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:09:31,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2025-02-08 14:09:31,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2025-02-08 14:09:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:09:31,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200655004] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:31,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:31,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-02-08 14:09:31,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807388488] [2025-02-08 14:09:31,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:31,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:09:31,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:31,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:09:31,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=417, Unknown=4, NotChecked=0, Total=506 [2025-02-08 14:09:32,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 137 [2025-02-08 14:09:32,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 283 transitions, 1951 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2025-02-08 14:09:32,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:32,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 137 [2025-02-08 14:09:32,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand