./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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-nzb-file-symm.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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:08:52,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:08:52,084 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:08:52,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:08:52,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:08:52,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:08:52,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:08:52,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:08:52,108 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:08:52,108 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:08:52,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:08:52,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:08:52,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:08:52,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:08:52,109 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:08:52,109 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:08:52,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:08:52,111 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:08:52,112 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:08:52,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:08:52,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:08:52,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:08:52,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:52,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:08:52,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:08:52,113 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 -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2025-02-08 14:08:52,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:08:52,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:08:52,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:08:52,379 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:08:52,379 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:08:52,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-02-08 14:08:53,646 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c6eb8a6d/2dcfacf021414cdc9e70eeb5333b2fca/FLAGc6e5198d0 [2025-02-08 14:08:53,913 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:08:53,913 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-02-08 14:08:53,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c6eb8a6d/2dcfacf021414cdc9e70eeb5333b2fca/FLAGc6e5198d0 [2025-02-08 14:08:53,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c6eb8a6d/2dcfacf021414cdc9e70eeb5333b2fca [2025-02-08 14:08:53,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:08:53,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:08:53,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:53,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:08:53,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:08:53,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:53" (1/1) ... [2025-02-08 14:08:53,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb39fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:53, skipping insertion in model container [2025-02-08 14:08:53,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:53" (1/1) ... [2025-02-08 14:08:53,986 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:08:54,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:54,202 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:08:54,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:54,274 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:08:54,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54 WrapperNode [2025-02-08 14:08:54,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:54,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:54,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:08:54,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:08:54,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,326 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 491 [2025-02-08 14:08:54,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:54,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:08:54,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:08:54,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:08:54,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,366 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-08 14:08:54,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,380 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:08:54,404 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:08:54,404 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:08:54,404 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:08:54,405 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (1/1) ... [2025-02-08 14:08:54,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:54,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:54,437 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 14:08:54,444 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 14:08:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:08:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:08:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:08:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:08:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:08:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:08:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:08:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:08:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:08:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:08:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:08:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:08:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:08:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:08:54,469 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 14:08:54,600 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:08:54,602 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:08:54,940 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-5: #t~ite23#1 := #t~ret22#1; [2025-02-08 14:08:54,940 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret22#1 && #t~ret22#1 <= 2147483647; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-8: havoc minus_#t~short70#1, minus_#t~short71#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L69-9: #t~ret22#1 := minus_#res#1; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-3: #t~ite21#1 := #t~ret20#1; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret20#1 && #t~ret20#1 <= 2147483647; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-6: havoc minus_#t~short70#1, minus_#t~short71#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:54,941 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L65-7: #t~ret20#1 := minus_#res#1; [2025-02-08 14:08:55,220 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-3: #t~ite45#1 := #t~ret44#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-4: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret44#1 && #t~ret44#1 <= 2147483647; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-5: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-6: havoc minus_#t~short70#1, minus_#t~short71#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L92-7: #t~ret44#1 := minus_#res#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-5: #t~ite47#1 := #t~ret46#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret46#1 && #t~ret46#1 <= 2147483647; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-8: havoc minus_#t~short70#1, minus_#t~short71#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:55,221 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96-9: #t~ret46#1 := minus_#res#1; [2025-02-08 14:08:55,385 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:08:55,386 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:08:55,877 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:08:55,879 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:08:55,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:55 BoogieIcfgContainer [2025-02-08 14:08:55,881 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:08:55,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:08:55,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:08:55,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:08:55,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:08:53" (1/3) ... [2025-02-08 14:08:55,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f516613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:55, skipping insertion in model container [2025-02-08 14:08:55,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:54" (2/3) ... [2025-02-08 14:08:55,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f516613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:55, skipping insertion in model container [2025-02-08 14:08:55,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:55" (3/3) ... [2025-02-08 14:08:55,892 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2025-02-08 14:08:55,907 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:08:55,908 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-symm.wvr.c that has 3 procedures, 144 locations, 1 initial locations, 4 loop locations, and 42 error locations. [2025-02-08 14:08:55,909 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:08:56,037 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:08:56,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 165 transitions, 344 flow [2025-02-08 14:08:56,150 INFO L124 PetriNetUnfolderBase]: 22/163 cut-off events. [2025-02-08 14:08:56,153 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:08:56,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 163 events. 22/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 848 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2025-02-08 14:08:56,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 165 transitions, 344 flow [2025-02-08 14:08:56,171 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 162 transitions, 336 flow [2025-02-08 14:08:56,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:08:56,195 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;@2910feeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:08:56,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2025-02-08 14:08:56,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:08:56,201 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:08:56,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:08:56,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:56,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:08:56,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:08:56,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:56,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1337828, now seen corresponding path program 1 times [2025-02-08 14:08:56,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:56,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045468850] [2025-02-08 14:08:56,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:56,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:56,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:08:56,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:08:56,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:56,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:56,542 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 14:08:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:56,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045468850] [2025-02-08 14:08:56,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045468850] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:56,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:56,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507007686] [2025-02-08 14:08:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:56,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:56,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:56,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:56,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:56,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:08:56,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 162 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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 14:08:56,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:56,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:08:56,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:57,587 INFO L124 PetriNetUnfolderBase]: 2751/6380 cut-off events. [2025-02-08 14:08:57,588 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-02-08 14:08:57,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10538 conditions, 6380 events. 2751/6380 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 58000 event pairs, 1812 based on Foata normal form. 4/5056 useless extension candidates. Maximal degree in co-relation 10340. Up to 4076 conditions per place. [2025-02-08 14:08:57,642 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 77 selfloop transitions, 7 changer transitions 2/164 dead transitions. [2025-02-08 14:08:57,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 510 flow [2025-02-08 14:08:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 417 transitions. [2025-02-08 14:08:57,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6318181818181818 [2025-02-08 14:08:57,663 INFO L175 Difference]: Start difference. First operand has 147 places, 162 transitions, 336 flow. Second operand 4 states and 417 transitions. [2025-02-08 14:08:57,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 510 flow [2025-02-08 14:08:57,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 164 transitions, 502 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:08:57,678 INFO L231 Difference]: Finished difference. Result has 147 places, 162 transitions, 375 flow [2025-02-08 14:08:57,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=375, PETRI_PLACES=147, PETRI_TRANSITIONS=162} [2025-02-08 14:08:57,686 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2025-02-08 14:08:57,686 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 162 transitions, 375 flow [2025-02-08 14:08:57,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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 14:08:57,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:57,687 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:08:57,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:08:57,687 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:08:57,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1201756558, now seen corresponding path program 1 times [2025-02-08 14:08:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:57,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996232756] [2025-02-08 14:08:57,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:57,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:57,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:08:57,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:08:57,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:57,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:57,893 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 14:08:57,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:57,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996232756] [2025-02-08 14:08:57,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996232756] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:57,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873606500] [2025-02-08 14:08:57,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:57,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:57,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:57,898 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 14:08:57,900 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 14:08:57,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:08:58,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:08:58,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:58,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:58,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:08:58,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:58,052 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 14:08:58,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:08:58,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873606500] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:58,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:08:58,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:08:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537967829] [2025-02-08 14:08:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:58,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:58,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:58,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:08:58,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:08:58,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 162 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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 14:08:58,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:58,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:08:58,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:58,813 INFO L124 PetriNetUnfolderBase]: 2751/6376 cut-off events. [2025-02-08 14:08:58,814 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-02-08 14:08:58,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10504 conditions, 6376 events. 2751/6376 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 58054 event pairs, 1812 based on Foata normal form. 2/5053 useless extension candidates. Maximal degree in co-relation 10454. Up to 4065 conditions per place. [2025-02-08 14:08:58,854 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 70 selfloop transitions, 12 changer transitions 0/160 dead transitions. [2025-02-08 14:08:58,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 160 transitions, 531 flow [2025-02-08 14:08:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2025-02-08 14:08:58,857 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2025-02-08 14:08:58,858 INFO L175 Difference]: Start difference. First operand has 147 places, 162 transitions, 375 flow. Second operand 6 states and 570 transitions. [2025-02-08 14:08:58,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 160 transitions, 531 flow [2025-02-08 14:08:58,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 160 transitions, 531 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:58,864 INFO L231 Difference]: Finished difference. Result has 148 places, 160 transitions, 391 flow [2025-02-08 14:08:58,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=391, PETRI_PLACES=148, PETRI_TRANSITIONS=160} [2025-02-08 14:08:58,865 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2025-02-08 14:08:58,865 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 160 transitions, 391 flow [2025-02-08 14:08:58,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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 14:08:58,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:58,866 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:08:58,874 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 14:08:59,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:59,072 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:08:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:59,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1400251132, now seen corresponding path program 1 times [2025-02-08 14:08:59,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:59,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889357496] [2025-02-08 14:08:59,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:59,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:59,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:08:59,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:08:59,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:59,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:59,270 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 14:08:59,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:59,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889357496] [2025-02-08 14:08:59,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889357496] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:08:59,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036128158] [2025-02-08 14:08:59,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:59,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:08:59,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:59,274 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 14:08:59,275 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 14:08:59,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:08:59,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:08:59,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:59,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:59,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:08:59,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:08:59,396 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 14:08:59,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:08:59,441 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 14:08:59,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036128158] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:08:59,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:08:59,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:08:59,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306471540] [2025-02-08 14:08:59,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:08:59,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:08:59,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:59,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:08:59,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:08:59,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:08:59,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 160 transitions, 391 flow. Second operand has 12 states, 12 states have (on average 82.08333333333333) internal successors, (985), 12 states have internal predecessors, (985), 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 14:08:59,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:59,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:08:59,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:00,314 INFO L124 PetriNetUnfolderBase]: 2757/6400 cut-off events. [2025-02-08 14:09:00,314 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-02-08 14:09:00,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10598 conditions, 6400 events. 2757/6400 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 58353 event pairs, 1812 based on Foata normal form. 6/5080 useless extension candidates. Maximal degree in co-relation 10456. Up to 4076 conditions per place. [2025-02-08 14:09:00,357 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 75 selfloop transitions, 25 changer transitions 0/178 dead transitions. [2025-02-08 14:09:00,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 178 transitions, 705 flow [2025-02-08 14:09:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:09:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:09:00,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 916 transitions. [2025-02-08 14:09:00,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5551515151515152 [2025-02-08 14:09:00,361 INFO L175 Difference]: Start difference. First operand has 148 places, 160 transitions, 391 flow. Second operand 10 states and 916 transitions. [2025-02-08 14:09:00,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 178 transitions, 705 flow [2025-02-08 14:09:00,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 178 transitions, 647 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-08 14:09:00,373 INFO L231 Difference]: Finished difference. Result has 155 places, 178 transitions, 531 flow [2025-02-08 14:09:00,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=531, PETRI_PLACES=155, PETRI_TRANSITIONS=178} [2025-02-08 14:09:00,374 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2025-02-08 14:09:00,375 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 178 transitions, 531 flow [2025-02-08 14:09:00,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 82.08333333333333) internal successors, (985), 12 states have internal predecessors, (985), 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 14:09:00,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:00,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:00,384 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 14:09:00,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:00,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:00,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:00,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1598704805, now seen corresponding path program 1 times [2025-02-08 14:09:00,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:00,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861181709] [2025-02-08 14:09:00,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:00,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:00,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:09:00,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:09:00,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:00,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:00,719 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 14:09:00,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:00,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861181709] [2025-02-08 14:09:00,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861181709] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:00,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:00,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346741336] [2025-02-08 14:09:00,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:00,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:00,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:00,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:00,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:00,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:09:00,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 178 transitions, 531 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:00,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:00,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:09:00,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:01,646 INFO L124 PetriNetUnfolderBase]: 4409/9460 cut-off events. [2025-02-08 14:09:01,647 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2025-02-08 14:09:01,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16275 conditions, 9460 events. 4409/9460 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 86398 event pairs, 1724 based on Foata normal form. 224/7813 useless extension candidates. Maximal degree in co-relation 16208. Up to 3804 conditions per place. [2025-02-08 14:09:01,718 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 176 selfloop transitions, 8 changer transitions 0/252 dead transitions. [2025-02-08 14:09:01,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 252 transitions, 1049 flow [2025-02-08 14:09:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2025-02-08 14:09:01,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.693939393939394 [2025-02-08 14:09:01,721 INFO L175 Difference]: Start difference. First operand has 155 places, 178 transitions, 531 flow. Second operand 4 states and 458 transitions. [2025-02-08 14:09:01,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 252 transitions, 1049 flow [2025-02-08 14:09:01,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 252 transitions, 1025 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:01,731 INFO L231 Difference]: Finished difference. Result has 157 places, 180 transitions, 559 flow [2025-02-08 14:09:01,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=559, PETRI_PLACES=157, PETRI_TRANSITIONS=180} [2025-02-08 14:09:01,732 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2025-02-08 14:09:01,732 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 180 transitions, 559 flow [2025-02-08 14:09:01,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:01,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:01,732 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:01,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:09:01,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:01,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:01,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1599660136, now seen corresponding path program 1 times [2025-02-08 14:09:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:01,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816848967] [2025-02-08 14:09:01,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:01,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:01,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:09:01,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:09:01,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:01,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:01,842 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 14:09:01,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:01,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816848967] [2025-02-08 14:09:01,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816848967] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:01,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:01,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:01,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740988357] [2025-02-08 14:09:01,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:01,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:09:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:01,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:09:01,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:09:01,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:01,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 180 transitions, 559 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 14:09:01,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:01,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:01,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:02,721 INFO L124 PetriNetUnfolderBase]: 5948/13146 cut-off events. [2025-02-08 14:09:02,721 INFO L125 PetriNetUnfolderBase]: For 1122/1210 co-relation queries the response was YES. [2025-02-08 14:09:02,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23834 conditions, 13146 events. 5948/13146 cut-off events. For 1122/1210 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 124183 event pairs, 2855 based on Foata normal form. 157/11496 useless extension candidates. Maximal degree in co-relation 23767. Up to 5709 conditions per place. [2025-02-08 14:09:02,822 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 157 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2025-02-08 14:09:02,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 235 transitions, 1001 flow [2025-02-08 14:09:02,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:09:02,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:09:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2025-02-08 14:09:02,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7656565656565657 [2025-02-08 14:09:02,824 INFO L175 Difference]: Start difference. First operand has 157 places, 180 transitions, 559 flow. Second operand 3 states and 379 transitions. [2025-02-08 14:09:02,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 235 transitions, 1001 flow [2025-02-08 14:09:02,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 235 transitions, 1001 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:09:02,863 INFO L231 Difference]: Finished difference. Result has 160 places, 181 transitions, 577 flow [2025-02-08 14:09:02,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=160, PETRI_TRANSITIONS=181} [2025-02-08 14:09:02,863 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 13 predicate places. [2025-02-08 14:09:02,864 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 181 transitions, 577 flow [2025-02-08 14:09:02,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 14:09:02,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:02,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:02,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:09:02,864 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:02,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:02,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1979759943, now seen corresponding path program 1 times [2025-02-08 14:09:02,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:02,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488123163] [2025-02-08 14:09:02,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:02,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:02,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:09:02,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:09:02,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:02,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:02,940 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 14:09:02,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:02,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488123163] [2025-02-08 14:09:02,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488123163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:02,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:02,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133328904] [2025-02-08 14:09:02,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:02,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:09:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:02,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:09:02,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:09:02,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 165 [2025-02-08 14:09:02,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 181 transitions, 577 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 14:09:02,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:02,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 165 [2025-02-08 14:09:02,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:03,686 INFO L124 PetriNetUnfolderBase]: 5340/12863 cut-off events. [2025-02-08 14:09:03,687 INFO L125 PetriNetUnfolderBase]: For 1428/1572 co-relation queries the response was YES. [2025-02-08 14:09:03,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22735 conditions, 12863 events. 5340/12863 cut-off events. For 1428/1572 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 128682 event pairs, 3798 based on Foata normal form. 81/10871 useless extension candidates. Maximal degree in co-relation 22666. Up to 8001 conditions per place. [2025-02-08 14:09:03,747 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 92 selfloop transitions, 7 changer transitions 0/179 dead transitions. [2025-02-08 14:09:03,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 179 transitions, 766 flow [2025-02-08 14:09:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:09:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:09:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 335 transitions. [2025-02-08 14:09:03,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6767676767676768 [2025-02-08 14:09:03,749 INFO L175 Difference]: Start difference. First operand has 160 places, 181 transitions, 577 flow. Second operand 3 states and 335 transitions. [2025-02-08 14:09:03,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 179 transitions, 766 flow [2025-02-08 14:09:03,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 179 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:03,761 INFO L231 Difference]: Finished difference. Result has 160 places, 179 transitions, 573 flow [2025-02-08 14:09:03,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=160, PETRI_TRANSITIONS=179} [2025-02-08 14:09:03,762 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 13 predicate places. [2025-02-08 14:09:03,762 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 179 transitions, 573 flow [2025-02-08 14:09:03,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 14:09:03,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:03,763 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:09:03,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:09:03,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:03,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1039153170, now seen corresponding path program 2 times [2025-02-08 14:09:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:03,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846292344] [2025-02-08 14:09:03,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:09:03,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:03,776 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:09:03,785 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:09:03,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:09:03,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:03,838 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 14:09:03,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:03,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846292344] [2025-02-08 14:09:03,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846292344] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:03,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075459468] [2025-02-08 14:09:03,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:09:03,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:03,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:03,842 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 14:09:03,845 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 14:09:03,913 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:09:03,923 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:09:03,923 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:09:03,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:03,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:09:03,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:03,949 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 14:09:03,950 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:03,978 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 14:09:03,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075459468] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:03,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:03,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-02-08 14:09:03,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3865575] [2025-02-08 14:09:03,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:03,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:03,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:03,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:03,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:03,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:03,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 179 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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 14:09:03,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:03,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:03,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:04,878 INFO L124 PetriNetUnfolderBase]: 5340/12861 cut-off events. [2025-02-08 14:09:04,879 INFO L125 PetriNetUnfolderBase]: For 1341/1485 co-relation queries the response was YES. [2025-02-08 14:09:04,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22675 conditions, 12861 events. 5340/12861 cut-off events. For 1341/1485 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 128124 event pairs, 3798 based on Foata normal form. 81/10870 useless extension candidates. Maximal degree in co-relation 22616. Up to 7983 conditions per place. [2025-02-08 14:09:04,933 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 74 selfloop transitions, 25 changer transitions 0/177 dead transitions. [2025-02-08 14:09:04,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 177 transitions, 751 flow [2025-02-08 14:09:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:04,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2025-02-08 14:09:04,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2025-02-08 14:09:04,935 INFO L175 Difference]: Start difference. First operand has 160 places, 179 transitions, 573 flow. Second operand 4 states and 400 transitions. [2025-02-08 14:09:04,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 177 transitions, 751 flow [2025-02-08 14:09:04,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 177 transitions, 717 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-02-08 14:09:04,946 INFO L231 Difference]: Finished difference. Result has 155 places, 177 transitions, 569 flow [2025-02-08 14:09:04,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=569, PETRI_PLACES=155, PETRI_TRANSITIONS=177} [2025-02-08 14:09:04,947 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2025-02-08 14:09:04,947 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 177 transitions, 569 flow [2025-02-08 14:09:04,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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 14:09:04,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:04,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:04,956 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 14:09:05,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:05,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:05,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:05,152 INFO L85 PathProgramCache]: Analyzing trace with hash -444276463, now seen corresponding path program 1 times [2025-02-08 14:09:05,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:05,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080270887] [2025-02-08 14:09:05,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:05,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:05,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:09:05,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:09:05,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:05,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:09:05,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:05,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080270887] [2025-02-08 14:09:05,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080270887] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:05,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451497843] [2025-02-08 14:09:05,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:05,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:05,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:05,289 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 14:09:05,291 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 14:09:05,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:09:05,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:09:05,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:05,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:05,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:09:05,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:05,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:09:05,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:09:05,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451497843] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:05,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:05,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:09:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180566077] [2025-02-08 14:09:05,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:05,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:09:05,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:05,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:09:05,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:09:05,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:05,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 177 transitions, 569 flow. Second operand has 11 states, 11 states have (on average 82.72727272727273) internal successors, (910), 11 states have internal predecessors, (910), 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 14:09:05,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:05,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:05,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:06,305 INFO L124 PetriNetUnfolderBase]: 5336/12857 cut-off events. [2025-02-08 14:09:06,306 INFO L125 PetriNetUnfolderBase]: For 1339/1483 co-relation queries the response was YES. [2025-02-08 14:09:06,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22665 conditions, 12857 events. 5336/12857 cut-off events. For 1339/1483 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 127999 event pairs, 3798 based on Foata normal form. 81/10865 useless extension candidates. Maximal degree in co-relation 22531. Up to 7987 conditions per place. [2025-02-08 14:09:06,435 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 74 selfloop transitions, 21 changer transitions 0/173 dead transitions. [2025-02-08 14:09:06,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 173 transitions, 735 flow [2025-02-08 14:09:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:09:06,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:09:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 655 transitions. [2025-02-08 14:09:06,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5670995670995671 [2025-02-08 14:09:06,438 INFO L175 Difference]: Start difference. First operand has 155 places, 177 transitions, 569 flow. Second operand 7 states and 655 transitions. [2025-02-08 14:09:06,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 173 transitions, 735 flow [2025-02-08 14:09:06,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 173 transitions, 689 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:06,445 INFO L231 Difference]: Finished difference. Result has 158 places, 173 transitions, 541 flow [2025-02-08 14:09:06,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=541, PETRI_PLACES=158, PETRI_TRANSITIONS=173} [2025-02-08 14:09:06,446 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2025-02-08 14:09:06,446 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 173 transitions, 541 flow [2025-02-08 14:09:06,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.72727272727273) internal successors, (910), 11 states have internal predecessors, (910), 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 14:09:06,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:06,447 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:06,455 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 14:09:06,648 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,SelfDestructingSolverStorable7 [2025-02-08 14:09:06,648 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:06,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:06,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1275257647, now seen corresponding path program 2 times [2025-02-08 14:09:06,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:06,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543543762] [2025-02-08 14:09:06,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:09:06,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:06,661 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-08 14:09:06,667 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 29 statements. [2025-02-08 14:09:06,667 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:09:06,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 14:09:06,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543543762] [2025-02-08 14:09:06,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543543762] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:06,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:06,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407896924] [2025-02-08 14:09:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:06,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:06,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:06,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:06,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:06,759 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:09:06,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 173 transitions, 541 flow. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 14:09:06,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:06,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:09:06,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:07,762 INFO L124 PetriNetUnfolderBase]: 6272/14547 cut-off events. [2025-02-08 14:09:07,762 INFO L125 PetriNetUnfolderBase]: For 1539/1581 co-relation queries the response was YES. [2025-02-08 14:09:07,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26156 conditions, 14547 events. 6272/14547 cut-off events. For 1539/1581 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 142994 event pairs, 3343 based on Foata normal form. 42/12301 useless extension candidates. Maximal degree in co-relation 26027. Up to 6784 conditions per place. [2025-02-08 14:09:07,955 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 130 selfloop transitions, 4 changer transitions 0/208 dead transitions. [2025-02-08 14:09:07,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 208 transitions, 880 flow [2025-02-08 14:09:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:07,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2025-02-08 14:09:07,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2025-02-08 14:09:07,957 INFO L175 Difference]: Start difference. First operand has 158 places, 173 transitions, 541 flow. Second operand 4 states and 430 transitions. [2025-02-08 14:09:07,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 208 transitions, 880 flow [2025-02-08 14:09:07,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 208 transitions, 863 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:09:07,969 INFO L231 Difference]: Finished difference. Result has 156 places, 172 transitions, 530 flow [2025-02-08 14:09:07,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=530, PETRI_PLACES=156, PETRI_TRANSITIONS=172} [2025-02-08 14:09:07,970 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 9 predicate places. [2025-02-08 14:09:07,970 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 172 transitions, 530 flow [2025-02-08 14:09:07,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 14:09:07,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:07,970 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:07,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:09:07,970 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:07,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:07,971 INFO L85 PathProgramCache]: Analyzing trace with hash -878310788, now seen corresponding path program 1 times [2025-02-08 14:09:07,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:07,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777504707] [2025-02-08 14:09:07,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:07,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:07,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:09:08,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:09:08,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:08,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:09:08,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777504707] [2025-02-08 14:09:08,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777504707] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:08,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852469016] [2025-02-08 14:09:08,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:08,180 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 14:09:08,182 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 14:09:08,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 14:09:08,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:09:08,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:08,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:08,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:09:08,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:09:08,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:09:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:09:08,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852469016] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:09:08,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:09:08,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:09:08,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523425521] [2025-02-08 14:09:08,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:09:08,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:09:08,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:08,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:09:08,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:09:08,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:08,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 172 transitions, 530 flow. Second operand has 18 states, 18 states have (on average 82.55555555555556) internal successors, (1486), 18 states have internal predecessors, (1486), 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 14:09:08,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:08,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:08,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:09,640 INFO L124 PetriNetUnfolderBase]: 5728/13899 cut-off events. [2025-02-08 14:09:09,641 INFO L125 PetriNetUnfolderBase]: For 1745/1889 co-relation queries the response was YES. [2025-02-08 14:09:09,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24602 conditions, 13899 events. 5728/13899 cut-off events. For 1745/1889 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 140464 event pairs, 4212 based on Foata normal form. 81/11714 useless extension candidates. Maximal degree in co-relation 24476. Up to 8660 conditions per place. [2025-02-08 14:09:09,693 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 73 selfloop transitions, 22 changer transitions 0/172 dead transitions. [2025-02-08 14:09:09,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 172 transitions, 725 flow [2025-02-08 14:09:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:09:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:09:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 987 transitions. [2025-02-08 14:09:09,696 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543801652892562 [2025-02-08 14:09:09,696 INFO L175 Difference]: Start difference. First operand has 156 places, 172 transitions, 530 flow. Second operand 11 states and 987 transitions. [2025-02-08 14:09:09,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 172 transitions, 725 flow [2025-02-08 14:09:09,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 172 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:09,720 INFO L231 Difference]: Finished difference. Result has 166 places, 172 transitions, 592 flow [2025-02-08 14:09:09,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=592, PETRI_PLACES=166, PETRI_TRANSITIONS=172} [2025-02-08 14:09:09,721 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 19 predicate places. [2025-02-08 14:09:09,721 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 172 transitions, 592 flow [2025-02-08 14:09:09,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 82.55555555555556) internal successors, (1486), 18 states have internal predecessors, (1486), 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 14:09:09,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:09,722 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:09,731 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 14:09:09,922 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,SelfDestructingSolverStorable9 [2025-02-08 14:09:09,922 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:09,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:09,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1048529220, now seen corresponding path program 2 times [2025-02-08 14:09:09,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:09,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360903193] [2025-02-08 14:09:09,923 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:09:09,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:09,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-08 14:09:09,952 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 42 statements. [2025-02-08 14:09:09,953 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:09:09,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:10,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:10,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360903193] [2025-02-08 14:09:10,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360903193] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:10,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:10,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:10,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885282266] [2025-02-08 14:09:10,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:10,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:10,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:10,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:10,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:10,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 165 [2025-02-08 14:09:10,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 172 transitions, 592 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 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 14:09:10,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:10,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 165 [2025-02-08 14:09:10,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:10,972 INFO L124 PetriNetUnfolderBase]: 6504/14819 cut-off events. [2025-02-08 14:09:10,972 INFO L125 PetriNetUnfolderBase]: For 2119/2161 co-relation queries the response was YES. [2025-02-08 14:09:10,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27224 conditions, 14819 events. 6504/14819 cut-off events. For 2119/2161 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 144171 event pairs, 3793 based on Foata normal form. 98/12539 useless extension candidates. Maximal degree in co-relation 27068. Up to 7686 conditions per place. [2025-02-08 14:09:11,030 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 130 selfloop transitions, 5 changer transitions 0/205 dead transitions. [2025-02-08 14:09:11,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 205 transitions, 927 flow [2025-02-08 14:09:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2025-02-08 14:09:11,032 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6378787878787879 [2025-02-08 14:09:11,032 INFO L175 Difference]: Start difference. First operand has 166 places, 172 transitions, 592 flow. Second operand 4 states and 421 transitions. [2025-02-08 14:09:11,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 205 transitions, 927 flow [2025-02-08 14:09:11,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 205 transitions, 895 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-02-08 14:09:11,045 INFO L231 Difference]: Finished difference. Result has 160 places, 171 transitions, 566 flow [2025-02-08 14:09:11,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=566, PETRI_PLACES=160, PETRI_TRANSITIONS=171} [2025-02-08 14:09:11,045 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 13 predicate places. [2025-02-08 14:09:11,045 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 171 transitions, 566 flow [2025-02-08 14:09:11,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 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 14:09:11,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:11,046 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:11,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:09:11,046 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:11,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:11,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1151945971, now seen corresponding path program 1 times [2025-02-08 14:09:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287889920] [2025-02-08 14:09:11,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:11,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 14:09:11,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 14:09:11,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:11,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:11,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:11,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287889920] [2025-02-08 14:09:11,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287889920] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:11,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:11,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:11,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670832091] [2025-02-08 14:09:11,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:11,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:09:11,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:11,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:09:11,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:09:11,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:11,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 171 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 14:09:11,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:11,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:11,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:12,814 INFO L124 PetriNetUnfolderBase]: 9689/21710 cut-off events. [2025-02-08 14:09:12,815 INFO L125 PetriNetUnfolderBase]: For 2858/3175 co-relation queries the response was YES. [2025-02-08 14:09:12,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39553 conditions, 21710 events. 9689/21710 cut-off events. For 2858/3175 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 218130 event pairs, 4852 based on Foata normal form. 437/19000 useless extension candidates. Maximal degree in co-relation 39411. Up to 9806 conditions per place. [2025-02-08 14:09:12,968 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 152 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2025-02-08 14:09:12,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 226 transitions, 1019 flow [2025-02-08 14:09:12,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:09:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:09:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2025-02-08 14:09:12,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7616161616161616 [2025-02-08 14:09:12,971 INFO L175 Difference]: Start difference. First operand has 160 places, 171 transitions, 566 flow. Second operand 3 states and 377 transitions. [2025-02-08 14:09:12,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 226 transitions, 1019 flow [2025-02-08 14:09:12,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 226 transitions, 1012 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:12,999 INFO L231 Difference]: Finished difference. Result has 161 places, 172 transitions, 578 flow [2025-02-08 14:09:12,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=161, PETRI_TRANSITIONS=172} [2025-02-08 14:09:13,000 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2025-02-08 14:09:13,000 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 172 transitions, 578 flow [2025-02-08 14:09:13,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 14:09:13,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:13,001 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:13,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:09:13,001 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:13,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:13,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1150929105, now seen corresponding path program 1 times [2025-02-08 14:09:13,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:13,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313542970] [2025-02-08 14:09:13,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:13,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:13,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 14:09:13,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 14:09:13,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:13,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:13,144 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:13,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:13,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313542970] [2025-02-08 14:09:13,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313542970] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:13,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:13,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:13,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048969308] [2025-02-08 14:09:13,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:13,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:13,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:13,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:13,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:13,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:09:13,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 172 transitions, 578 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 14:09:13,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:13,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:09:13,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:15,234 INFO L124 PetriNetUnfolderBase]: 13890/30031 cut-off events. [2025-02-08 14:09:15,234 INFO L125 PetriNetUnfolderBase]: For 4206/4715 co-relation queries the response was YES. [2025-02-08 14:09:15,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56919 conditions, 30031 events. 13890/30031 cut-off events. For 4206/4715 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 307382 event pairs, 6635 based on Foata normal form. 1027/26954 useless extension candidates. Maximal degree in co-relation 56777. Up to 13083 conditions per place. [2025-02-08 14:09:15,409 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 178 selfloop transitions, 8 changer transitions 0/250 dead transitions. [2025-02-08 14:09:15,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 250 transitions, 1174 flow [2025-02-08 14:09:15,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:15,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2025-02-08 14:09:15,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2025-02-08 14:09:15,410 INFO L175 Difference]: Start difference. First operand has 161 places, 172 transitions, 578 flow. Second operand 4 states and 456 transitions. [2025-02-08 14:09:15,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 250 transitions, 1174 flow [2025-02-08 14:09:15,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 250 transitions, 1172 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:15,434 INFO L231 Difference]: Finished difference. Result has 164 places, 174 transitions, 628 flow [2025-02-08 14:09:15,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=628, PETRI_PLACES=164, PETRI_TRANSITIONS=174} [2025-02-08 14:09:15,434 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 17 predicate places. [2025-02-08 14:09:15,435 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 174 transitions, 628 flow [2025-02-08 14:09:15,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 14:09:15,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:15,435 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:15,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:09:15,435 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:15,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1855333915, now seen corresponding path program 1 times [2025-02-08 14:09:15,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:15,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689154328] [2025-02-08 14:09:15,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:15,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:15,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:15,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:15,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:15,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:15,536 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:15,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:15,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689154328] [2025-02-08 14:09:15,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689154328] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:15,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:15,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:15,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598821355] [2025-02-08 14:09:15,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:15,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:15,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:15,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:15,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:15,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:09:15,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 174 transitions, 628 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 14:09:15,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:15,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:09:15,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:17,304 INFO L124 PetriNetUnfolderBase]: 13110/29963 cut-off events. [2025-02-08 14:09:17,305 INFO L125 PetriNetUnfolderBase]: For 7238/7671 co-relation queries the response was YES. [2025-02-08 14:09:17,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59458 conditions, 29963 events. 13110/29963 cut-off events. For 7238/7671 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 317596 event pairs, 6276 based on Foata normal form. 558/27353 useless extension candidates. Maximal degree in co-relation 59314. Up to 12222 conditions per place. [2025-02-08 14:09:17,538 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 178 selfloop transitions, 6 changer transitions 0/250 dead transitions. [2025-02-08 14:09:17,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 250 transitions, 1201 flow [2025-02-08 14:09:17,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2025-02-08 14:09:17,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2025-02-08 14:09:17,541 INFO L175 Difference]: Start difference. First operand has 164 places, 174 transitions, 628 flow. Second operand 4 states and 450 transitions. [2025-02-08 14:09:17,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 250 transitions, 1201 flow [2025-02-08 14:09:17,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 250 transitions, 1197 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:17,654 INFO L231 Difference]: Finished difference. Result has 166 places, 172 transitions, 623 flow [2025-02-08 14:09:17,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=623, PETRI_PLACES=166, PETRI_TRANSITIONS=172} [2025-02-08 14:09:17,655 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 19 predicate places. [2025-02-08 14:09:17,655 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 172 transitions, 623 flow [2025-02-08 14:09:17,656 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 14:09:17,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:17,656 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:17,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:09:17,656 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:17,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1855332922, now seen corresponding path program 1 times [2025-02-08 14:09:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:17,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462362785] [2025-02-08 14:09:17,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:17,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:17,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:17,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:17,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:17,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:17,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:17,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462362785] [2025-02-08 14:09:17,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462362785] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:17,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:17,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64636762] [2025-02-08 14:09:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:17,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:17,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:17,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:17,910 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 165 [2025-02-08 14:09:17,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 172 transitions, 623 flow. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 14:09:17,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:17,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 165 [2025-02-08 14:09:17,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:19,822 INFO L124 PetriNetUnfolderBase]: 15402/32191 cut-off events. [2025-02-08 14:09:19,822 INFO L125 PetriNetUnfolderBase]: For 7356/8019 co-relation queries the response was YES. [2025-02-08 14:09:19,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66233 conditions, 32191 events. 15402/32191 cut-off events. For 7356/8019 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 320323 event pairs, 6450 based on Foata normal form. 314/28801 useless extension candidates. Maximal degree in co-relation 66089. Up to 12489 conditions per place. [2025-02-08 14:09:20,052 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 176 selfloop transitions, 7 changer transitions 0/247 dead transitions. [2025-02-08 14:09:20,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 247 transitions, 1201 flow [2025-02-08 14:09:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2025-02-08 14:09:20,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6448484848484849 [2025-02-08 14:09:20,054 INFO L175 Difference]: Start difference. First operand has 166 places, 172 transitions, 623 flow. Second operand 5 states and 532 transitions. [2025-02-08 14:09:20,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 247 transitions, 1201 flow [2025-02-08 14:09:20,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 247 transitions, 1191 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:20,129 INFO L231 Difference]: Finished difference. Result has 169 places, 172 transitions, 639 flow [2025-02-08 14:09:20,129 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=639, PETRI_PLACES=169, PETRI_TRANSITIONS=172} [2025-02-08 14:09:20,129 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 22 predicate places. [2025-02-08 14:09:20,130 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 172 transitions, 639 flow [2025-02-08 14:09:20,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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 14:09:20,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:20,130 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:20,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:09:20,130 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:20,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:20,131 INFO L85 PathProgramCache]: Analyzing trace with hash -833193702, now seen corresponding path program 1 times [2025-02-08 14:09:20,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:20,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363880367] [2025-02-08 14:09:20,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:20,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:20,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:20,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:20,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:20,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:20,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:20,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363880367] [2025-02-08 14:09:20,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363880367] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:20,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:20,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:20,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842630359] [2025-02-08 14:09:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:20,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:20,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:20,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:20,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:20,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:09:20,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 172 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:20,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:20,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:09:20,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:22,302 INFO L124 PetriNetUnfolderBase]: 12097/26973 cut-off events. [2025-02-08 14:09:22,302 INFO L125 PetriNetUnfolderBase]: For 7756/8404 co-relation queries the response was YES. [2025-02-08 14:09:22,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56359 conditions, 26973 events. 12097/26973 cut-off events. For 7756/8404 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 280315 event pairs, 6447 based on Foata normal form. 601/26020 useless extension candidates. Maximal degree in co-relation 56212. Up to 12212 conditions per place. [2025-02-08 14:09:22,553 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 195 selfloop transitions, 3 changer transitions 0/266 dead transitions. [2025-02-08 14:09:22,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 266 transitions, 1300 flow [2025-02-08 14:09:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:22,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 486 transitions. [2025-02-08 14:09:22,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7363636363636363 [2025-02-08 14:09:22,555 INFO L175 Difference]: Start difference. First operand has 169 places, 172 transitions, 639 flow. Second operand 4 states and 486 transitions. [2025-02-08 14:09:22,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 266 transitions, 1300 flow [2025-02-08 14:09:22,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 266 transitions, 1299 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:22,774 INFO L231 Difference]: Finished difference. Result has 173 places, 173 transitions, 656 flow [2025-02-08 14:09:22,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=656, PETRI_PLACES=173, PETRI_TRANSITIONS=173} [2025-02-08 14:09:22,775 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2025-02-08 14:09:22,775 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 173 transitions, 656 flow [2025-02-08 14:09:22,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:22,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:22,775 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:22,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:09:22,775 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:22,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:22,776 INFO L85 PathProgramCache]: Analyzing trace with hash -870475246, now seen corresponding path program 1 times [2025-02-08 14:09:22,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:22,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36732997] [2025-02-08 14:09:22,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:22,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:22,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:22,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:22,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:22,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:22,901 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:22,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:22,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36732997] [2025-02-08 14:09:22,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36732997] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:22,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:22,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:22,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370278881] [2025-02-08 14:09:22,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:22,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:22,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:22,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:22,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:22,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:09:22,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 173 transitions, 656 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:22,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:22,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:09:22,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:24,577 INFO L124 PetriNetUnfolderBase]: 11564/27443 cut-off events. [2025-02-08 14:09:24,577 INFO L125 PetriNetUnfolderBase]: For 8553/9035 co-relation queries the response was YES. [2025-02-08 14:09:24,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56645 conditions, 27443 events. 11564/27443 cut-off events. For 8553/9035 co-relation queries the response was YES. Maximal size of possible extension queue 1004. Compared 296298 event pairs, 5253 based on Foata normal form. 301/25813 useless extension candidates. Maximal degree in co-relation 56496. Up to 10222 conditions per place. [2025-02-08 14:09:24,833 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 136 selfloop transitions, 3 changer transitions 0/211 dead transitions. [2025-02-08 14:09:24,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 211 transitions, 1040 flow [2025-02-08 14:09:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:24,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2025-02-08 14:09:24,835 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2025-02-08 14:09:24,835 INFO L175 Difference]: Start difference. First operand has 173 places, 173 transitions, 656 flow. Second operand 4 states and 428 transitions. [2025-02-08 14:09:24,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 211 transitions, 1040 flow [2025-02-08 14:09:25,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 211 transitions, 1036 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:25,054 INFO L231 Difference]: Finished difference. Result has 173 places, 172 transitions, 655 flow [2025-02-08 14:09:25,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=655, PETRI_PLACES=173, PETRI_TRANSITIONS=172} [2025-02-08 14:09:25,055 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2025-02-08 14:09:25,055 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 172 transitions, 655 flow [2025-02-08 14:09:25,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:25,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:25,055 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:25,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:09:25,056 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:25,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1319065296, now seen corresponding path program 1 times [2025-02-08 14:09:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:25,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842391880] [2025-02-08 14:09:25,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:25,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:25,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:09:25,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:09:25,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:25,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:25,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:25,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842391880] [2025-02-08 14:09:25,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842391880] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:25,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:25,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:25,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840651301] [2025-02-08 14:09:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:25,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:25,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:25,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:25,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:25,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:09:25,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 172 transitions, 655 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:25,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:25,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:09:25,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:27,099 INFO L124 PetriNetUnfolderBase]: 12958/30627 cut-off events. [2025-02-08 14:09:27,099 INFO L125 PetriNetUnfolderBase]: For 9839/10368 co-relation queries the response was YES. [2025-02-08 14:09:27,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61396 conditions, 30627 events. 12958/30627 cut-off events. For 9839/10368 co-relation queries the response was YES. Maximal size of possible extension queue 1104. Compared 334508 event pairs, 7785 based on Foata normal form. 347/27985 useless extension candidates. Maximal degree in co-relation 61246. Up to 14678 conditions per place. [2025-02-08 14:09:27,361 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 137 selfloop transitions, 4 changer transitions 0/210 dead transitions. [2025-02-08 14:09:27,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 210 transitions, 1064 flow [2025-02-08 14:09:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:27,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2025-02-08 14:09:27,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2025-02-08 14:09:27,363 INFO L175 Difference]: Start difference. First operand has 173 places, 172 transitions, 655 flow. Second operand 4 states and 429 transitions. [2025-02-08 14:09:27,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 210 transitions, 1064 flow [2025-02-08 14:09:27,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 210 transitions, 1058 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:27,471 INFO L231 Difference]: Finished difference. Result has 173 places, 171 transitions, 657 flow [2025-02-08 14:09:27,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=657, PETRI_PLACES=173, PETRI_TRANSITIONS=171} [2025-02-08 14:09:27,472 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2025-02-08 14:09:27,472 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 171 transitions, 657 flow [2025-02-08 14:09:27,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:27,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:27,472 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:27,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:09:27,473 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:27,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1680747109, now seen corresponding path program 1 times [2025-02-08 14:09:27,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:27,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827307407] [2025-02-08 14:09:27,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:27,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:27,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:09:27,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:09:27,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:27,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:27,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:27,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827307407] [2025-02-08 14:09:27,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827307407] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:27,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:27,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:27,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858203199] [2025-02-08 14:09:27,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:27,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:27,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:27,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:27,644 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 165 [2025-02-08 14:09:27,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 171 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 14:09:27,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:27,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 165 [2025-02-08 14:09:27,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:29,994 INFO L124 PetriNetUnfolderBase]: 16670/35201 cut-off events. [2025-02-08 14:09:29,994 INFO L125 PetriNetUnfolderBase]: For 11261/12004 co-relation queries the response was YES. [2025-02-08 14:09:30,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74889 conditions, 35201 events. 16670/35201 cut-off events. For 11261/12004 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 358175 event pairs, 7834 based on Foata normal form. 478/32399 useless extension candidates. Maximal degree in co-relation 74739. Up to 14849 conditions per place. [2025-02-08 14:09:30,340 INFO L140 encePairwiseOnDemand]: 153/165 looper letters, 286 selfloop transitions, 11 changer transitions 0/359 dead transitions. [2025-02-08 14:09:30,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 359 transitions, 1804 flow [2025-02-08 14:09:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:09:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:09:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 811 transitions. [2025-02-08 14:09:30,342 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6143939393939394 [2025-02-08 14:09:30,343 INFO L175 Difference]: Start difference. First operand has 173 places, 171 transitions, 657 flow. Second operand 8 states and 811 transitions. [2025-02-08 14:09:30,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 359 transitions, 1804 flow [2025-02-08 14:09:30,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 359 transitions, 1789 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:30,597 INFO L231 Difference]: Finished difference. Result has 181 places, 174 transitions, 707 flow [2025-02-08 14:09:30,597 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=707, PETRI_PLACES=181, PETRI_TRANSITIONS=174} [2025-02-08 14:09:30,597 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 34 predicate places. [2025-02-08 14:09:30,598 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 174 transitions, 707 flow [2025-02-08 14:09:30,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 14:09:30,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:30,598 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:09:30,598 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:30,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:30,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1214958242, now seen corresponding path program 1 times [2025-02-08 14:09:30,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:30,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565034199] [2025-02-08 14:09:30,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:30,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:09:30,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:09:30,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:30,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:30,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:30,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565034199] [2025-02-08 14:09:30,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565034199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:30,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:30,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914494813] [2025-02-08 14:09:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:30,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:30,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:30,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:30,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:30,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 165 [2025-02-08 14:09:30,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 174 transitions, 707 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 14:09:30,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:30,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 165 [2025-02-08 14:09:30,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:32,708 INFO L124 PetriNetUnfolderBase]: 12536/29673 cut-off events. [2025-02-08 14:09:32,708 INFO L125 PetriNetUnfolderBase]: For 15531/16196 co-relation queries the response was YES. [2025-02-08 14:09:32,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67115 conditions, 29673 events. 12536/29673 cut-off events. For 15531/16196 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 323345 event pairs, 6271 based on Foata normal form. 724/28650 useless extension candidates. Maximal degree in co-relation 66961. Up to 12088 conditions per place. [2025-02-08 14:09:33,008 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 138 selfloop transitions, 3 changer transitions 0/210 dead transitions. [2025-02-08 14:09:33,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 210 transitions, 1091 flow [2025-02-08 14:09:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 419 transitions. [2025-02-08 14:09:33,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6348484848484849 [2025-02-08 14:09:33,010 INFO L175 Difference]: Start difference. First operand has 181 places, 174 transitions, 707 flow. Second operand 4 states and 419 transitions. [2025-02-08 14:09:33,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 210 transitions, 1091 flow [2025-02-08 14:09:33,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 210 transitions, 1087 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:33,550 INFO L231 Difference]: Finished difference. Result has 181 places, 173 transitions, 704 flow [2025-02-08 14:09:33,550 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=704, PETRI_PLACES=181, PETRI_TRANSITIONS=173} [2025-02-08 14:09:33,551 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 34 predicate places. [2025-02-08 14:09:33,551 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 173 transitions, 704 flow [2025-02-08 14:09:33,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 14:09:33,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:33,551 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:33,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 14:09:33,551 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:33,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:33,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2058678116, now seen corresponding path program 1 times [2025-02-08 14:09:33,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:33,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230475160] [2025-02-08 14:09:33,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:33,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:33,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:09:33,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:09:33,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:33,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:33,637 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:33,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:33,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230475160] [2025-02-08 14:09:33,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230475160] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:33,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:33,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:33,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11553622] [2025-02-08 14:09:33,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:33,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:33,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:33,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:33,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 165 [2025-02-08 14:09:33,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 173 transitions, 704 flow. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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 14:09:33,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:33,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 165 [2025-02-08 14:09:33,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:35,650 INFO L124 PetriNetUnfolderBase]: 13366/30719 cut-off events. [2025-02-08 14:09:35,650 INFO L125 PetriNetUnfolderBase]: For 17772/19438 co-relation queries the response was YES. [2025-02-08 14:09:35,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67505 conditions, 30719 events. 13366/30719 cut-off events. For 17772/19438 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 329154 event pairs, 8847 based on Foata normal form. 1286/29170 useless extension candidates. Maximal degree in co-relation 67350. Up to 16544 conditions per place. [2025-02-08 14:09:35,969 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 143 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2025-02-08 14:09:35,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 212 transitions, 1150 flow [2025-02-08 14:09:35,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 420 transitions. [2025-02-08 14:09:35,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2025-02-08 14:09:35,971 INFO L175 Difference]: Start difference. First operand has 181 places, 173 transitions, 704 flow. Second operand 4 states and 420 transitions. [2025-02-08 14:09:35,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 212 transitions, 1150 flow [2025-02-08 14:09:36,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 212 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:36,151 INFO L231 Difference]: Finished difference. Result has 181 places, 172 transitions, 706 flow [2025-02-08 14:09:36,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=706, PETRI_PLACES=181, PETRI_TRANSITIONS=172} [2025-02-08 14:09:36,151 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 34 predicate places. [2025-02-08 14:09:36,151 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 172 transitions, 706 flow [2025-02-08 14:09:36,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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 14:09:36,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:36,152 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:36,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 14:09:36,152 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:36,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1481812200, now seen corresponding path program 1 times [2025-02-08 14:09:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:36,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231115512] [2025-02-08 14:09:36,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:36,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:36,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:09:36,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:09:36,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:36,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:36,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231115512] [2025-02-08 14:09:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231115512] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:36,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:36,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105152083] [2025-02-08 14:09:36,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:36,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:36,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:36,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:36,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:36,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:09:36,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 172 transitions, 706 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 14:09:36,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:36,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:09:36,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:38,634 INFO L124 PetriNetUnfolderBase]: 14247/31238 cut-off events. [2025-02-08 14:09:38,634 INFO L125 PetriNetUnfolderBase]: For 15218/16181 co-relation queries the response was YES. [2025-02-08 14:09:38,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70333 conditions, 31238 events. 14247/31238 cut-off events. For 15218/16181 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 323231 event pairs, 7480 based on Foata normal form. 1001/30208 useless extension candidates. Maximal degree in co-relation 70178. Up to 14226 conditions per place. [2025-02-08 14:09:38,941 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 173 selfloop transitions, 8 changer transitions 0/245 dead transitions. [2025-02-08 14:09:38,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 245 transitions, 1275 flow [2025-02-08 14:09:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2025-02-08 14:09:38,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2025-02-08 14:09:38,943 INFO L175 Difference]: Start difference. First operand has 181 places, 172 transitions, 706 flow. Second operand 4 states and 444 transitions. [2025-02-08 14:09:38,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 245 transitions, 1275 flow [2025-02-08 14:09:39,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 1263 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:39,331 INFO L231 Difference]: Finished difference. Result has 179 places, 170 transitions, 699 flow [2025-02-08 14:09:39,332 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=699, PETRI_PLACES=179, PETRI_TRANSITIONS=170} [2025-02-08 14:09:39,332 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2025-02-08 14:09:39,332 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 170 transitions, 699 flow [2025-02-08 14:09:39,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 14:09:39,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:39,333 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:39,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 14:09:39,333 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:39,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:39,333 INFO L85 PathProgramCache]: Analyzing trace with hash 991000540, now seen corresponding path program 1 times [2025-02-08 14:09:39,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:39,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492485095] [2025-02-08 14:09:39,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:39,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:39,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:09:39,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:09:39,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:39,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:39,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:39,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492485095] [2025-02-08 14:09:39,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492485095] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:39,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:39,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650529434] [2025-02-08 14:09:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:39,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:39,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:39,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:39,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:39,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:39,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 170 transitions, 699 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 14:09:39,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:39,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:39,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:41,405 INFO L124 PetriNetUnfolderBase]: 10922/23622 cut-off events. [2025-02-08 14:09:41,405 INFO L125 PetriNetUnfolderBase]: For 12519/13182 co-relation queries the response was YES. [2025-02-08 14:09:41,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53964 conditions, 23622 events. 10922/23622 cut-off events. For 12519/13182 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 233930 event pairs, 6924 based on Foata normal form. 649/23037 useless extension candidates. Maximal degree in co-relation 53810. Up to 12853 conditions per place. [2025-02-08 14:09:41,566 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 213 selfloop transitions, 4 changer transitions 14/295 dead transitions. [2025-02-08 14:09:41,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 295 transitions, 1515 flow [2025-02-08 14:09:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:41,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:41,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2025-02-08 14:09:41,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7296969696969697 [2025-02-08 14:09:41,567 INFO L175 Difference]: Start difference. First operand has 179 places, 170 transitions, 699 flow. Second operand 5 states and 602 transitions. [2025-02-08 14:09:41,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 295 transitions, 1515 flow [2025-02-08 14:09:41,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 295 transitions, 1505 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:41,751 INFO L231 Difference]: Finished difference. Result has 184 places, 172 transitions, 714 flow [2025-02-08 14:09:41,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=714, PETRI_PLACES=184, PETRI_TRANSITIONS=172} [2025-02-08 14:09:41,751 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 37 predicate places. [2025-02-08 14:09:41,751 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 172 transitions, 714 flow [2025-02-08 14:09:41,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 14:09:41,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:41,752 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:41,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-08 14:09:41,752 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:41,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 605488281, now seen corresponding path program 1 times [2025-02-08 14:09:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:41,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731433868] [2025-02-08 14:09:41,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:41,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:41,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:09:41,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:09:41,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:41,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:41,862 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:41,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:41,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731433868] [2025-02-08 14:09:41,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731433868] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:41,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:41,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:41,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477028278] [2025-02-08 14:09:41,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:41,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:41,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:41,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:41,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:41,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 165 [2025-02-08 14:09:41,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 172 transitions, 714 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 14:09:41,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:41,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 165 [2025-02-08 14:09:41,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:44,154 INFO L124 PetriNetUnfolderBase]: 14303/28982 cut-off events. [2025-02-08 14:09:44,155 INFO L125 PetriNetUnfolderBase]: For 16008/16968 co-relation queries the response was YES. [2025-02-08 14:09:44,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68173 conditions, 28982 events. 14303/28982 cut-off events. For 16008/16968 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 273950 event pairs, 6338 based on Foata normal form. 738/27113 useless extension candidates. Maximal degree in co-relation 68018. Up to 12026 conditions per place. [2025-02-08 14:09:44,375 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 192 selfloop transitions, 7 changer transitions 0/257 dead transitions. [2025-02-08 14:09:44,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 257 transitions, 1468 flow [2025-02-08 14:09:44,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 530 transitions. [2025-02-08 14:09:44,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2025-02-08 14:09:44,376 INFO L175 Difference]: Start difference. First operand has 184 places, 172 transitions, 714 flow. Second operand 5 states and 530 transitions. [2025-02-08 14:09:44,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 257 transitions, 1468 flow [2025-02-08 14:09:44,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 257 transitions, 1468 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:09:44,496 INFO L231 Difference]: Finished difference. Result has 189 places, 172 transitions, 740 flow [2025-02-08 14:09:44,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=740, PETRI_PLACES=189, PETRI_TRANSITIONS=172} [2025-02-08 14:09:44,496 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2025-02-08 14:09:44,497 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 172 transitions, 740 flow [2025-02-08 14:09:44,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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 14:09:44,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:44,497 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:44,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-08 14:09:44,497 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:44,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash 605489274, now seen corresponding path program 1 times [2025-02-08 14:09:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276970905] [2025-02-08 14:09:44,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:44,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:44,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:09:44,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:09:44,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:44,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:44,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276970905] [2025-02-08 14:09:44,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276970905] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:44,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:44,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751565476] [2025-02-08 14:09:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:44,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:44,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:44,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:44,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:44,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:09:44,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 172 transitions, 740 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 14:09:44,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:44,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:09:44,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:46,499 INFO L124 PetriNetUnfolderBase]: 12081/26391 cut-off events. [2025-02-08 14:09:46,499 INFO L125 PetriNetUnfolderBase]: For 16876/17606 co-relation queries the response was YES. [2025-02-08 14:09:46,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62610 conditions, 26391 events. 12081/26391 cut-off events. For 16876/17606 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 263072 event pairs, 6187 based on Foata normal form. 903/25818 useless extension candidates. Maximal degree in co-relation 62451. Up to 11761 conditions per place. [2025-02-08 14:09:46,702 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 194 selfloop transitions, 6 changer transitions 0/258 dead transitions. [2025-02-08 14:09:46,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 258 transitions, 1489 flow [2025-02-08 14:09:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2025-02-08 14:09:46,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2025-02-08 14:09:46,704 INFO L175 Difference]: Start difference. First operand has 189 places, 172 transitions, 740 flow. Second operand 4 states and 448 transitions. [2025-02-08 14:09:46,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 258 transitions, 1489 flow [2025-02-08 14:09:47,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 258 transitions, 1484 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:47,023 INFO L231 Difference]: Finished difference. Result has 190 places, 170 transitions, 734 flow [2025-02-08 14:09:47,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=734, PETRI_PLACES=190, PETRI_TRANSITIONS=170} [2025-02-08 14:09:47,023 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 43 predicate places. [2025-02-08 14:09:47,023 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 170 transitions, 734 flow [2025-02-08 14:09:47,024 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 14:09:47,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:47,024 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:47,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 14:09:47,024 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:47,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:47,024 INFO L85 PathProgramCache]: Analyzing trace with hash 798865844, now seen corresponding path program 1 times [2025-02-08 14:09:47,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:47,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558330931] [2025-02-08 14:09:47,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:47,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:47,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:09:47,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:09:47,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:47,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558330931] [2025-02-08 14:09:47,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558330931] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:47,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:47,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050913470] [2025-02-08 14:09:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:47,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:47,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:47,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:47,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:47,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:47,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 170 transitions, 734 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 14:09:47,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:47,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:47,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:48,598 INFO L124 PetriNetUnfolderBase]: 9150/20053 cut-off events. [2025-02-08 14:09:48,598 INFO L125 PetriNetUnfolderBase]: For 12634/13333 co-relation queries the response was YES. [2025-02-08 14:09:48,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46518 conditions, 20053 events. 9150/20053 cut-off events. For 12634/13333 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 191641 event pairs, 5832 based on Foata normal form. 686/19646 useless extension candidates. Maximal degree in co-relation 46360. Up to 10936 conditions per place. [2025-02-08 14:09:48,752 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 205 selfloop transitions, 4 changer transitions 38/309 dead transitions. [2025-02-08 14:09:48,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 309 transitions, 1785 flow [2025-02-08 14:09:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 597 transitions. [2025-02-08 14:09:48,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7236363636363636 [2025-02-08 14:09:48,753 INFO L175 Difference]: Start difference. First operand has 190 places, 170 transitions, 734 flow. Second operand 5 states and 597 transitions. [2025-02-08 14:09:48,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 309 transitions, 1785 flow [2025-02-08 14:09:48,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 309 transitions, 1775 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:48,859 INFO L231 Difference]: Finished difference. Result has 195 places, 172 transitions, 749 flow [2025-02-08 14:09:48,859 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=749, PETRI_PLACES=195, PETRI_TRANSITIONS=172} [2025-02-08 14:09:48,860 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 48 predicate places. [2025-02-08 14:09:48,860 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 172 transitions, 749 flow [2025-02-08 14:09:48,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 14:09:48,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:48,860 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:48,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-08 14:09:48,860 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:48,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash 836118528, now seen corresponding path program 1 times [2025-02-08 14:09:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:48,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874309159] [2025-02-08 14:09:48,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:48,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:09:48,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:09:48,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:48,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:48,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:48,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874309159] [2025-02-08 14:09:48,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874309159] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:48,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:48,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:48,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280607593] [2025-02-08 14:09:48,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:48,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:48,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:48,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:48,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:48,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:09:48,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 172 transitions, 749 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 14:09:48,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:48,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:09:48,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:50,598 INFO L124 PetriNetUnfolderBase]: 9476/20217 cut-off events. [2025-02-08 14:09:50,598 INFO L125 PetriNetUnfolderBase]: For 13495/14224 co-relation queries the response was YES. [2025-02-08 14:09:50,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48201 conditions, 20217 events. 9476/20217 cut-off events. For 13495/14224 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 189128 event pairs, 6436 based on Foata normal form. 815/20133 useless extension candidates. Maximal degree in co-relation 48041. Up to 12000 conditions per place. [2025-02-08 14:09:50,696 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 203 selfloop transitions, 3 changer transitions 0/266 dead transitions. [2025-02-08 14:09:50,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 266 transitions, 1535 flow [2025-02-08 14:09:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:50,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2025-02-08 14:09:50,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7227272727272728 [2025-02-08 14:09:50,697 INFO L175 Difference]: Start difference. First operand has 195 places, 172 transitions, 749 flow. Second operand 4 states and 477 transitions. [2025-02-08 14:09:50,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 266 transitions, 1535 flow [2025-02-08 14:09:50,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 266 transitions, 1533 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:50,780 INFO L231 Difference]: Finished difference. Result has 199 places, 173 transitions, 765 flow [2025-02-08 14:09:50,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=765, PETRI_PLACES=199, PETRI_TRANSITIONS=173} [2025-02-08 14:09:50,780 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2025-02-08 14:09:50,780 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 173 transitions, 765 flow [2025-02-08 14:09:50,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 14:09:50,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:50,780 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:50,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-08 14:09:50,781 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:50,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:50,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1590268966, now seen corresponding path program 1 times [2025-02-08 14:09:50,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:50,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780933742] [2025-02-08 14:09:50,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:50,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:50,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-08 14:09:50,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-08 14:09:50,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:50,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:50,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:50,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780933742] [2025-02-08 14:09:50,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780933742] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:50,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:50,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:50,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901101639] [2025-02-08 14:09:50,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:50,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:50,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:50,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:50,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:50,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 165 [2025-02-08 14:09:50,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 173 transitions, 765 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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 14:09:50,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:50,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 165 [2025-02-08 14:09:50,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:52,764 INFO L124 PetriNetUnfolderBase]: 11163/22084 cut-off events. [2025-02-08 14:09:52,764 INFO L125 PetriNetUnfolderBase]: For 16123/16965 co-relation queries the response was YES. [2025-02-08 14:09:52,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55012 conditions, 22084 events. 11163/22084 cut-off events. For 16123/16965 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 193823 event pairs, 5885 based on Foata normal form. 668/21452 useless extension candidates. Maximal degree in co-relation 54849. Up to 11125 conditions per place. [2025-02-08 14:09:52,988 INFO L140 encePairwiseOnDemand]: 153/165 looper letters, 320 selfloop transitions, 11 changer transitions 0/386 dead transitions. [2025-02-08 14:09:52,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 386 transitions, 2320 flow [2025-02-08 14:09:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:09:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:09:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 807 transitions. [2025-02-08 14:09:52,989 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6113636363636363 [2025-02-08 14:09:52,989 INFO L175 Difference]: Start difference. First operand has 199 places, 173 transitions, 765 flow. Second operand 8 states and 807 transitions. [2025-02-08 14:09:52,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 386 transitions, 2320 flow [2025-02-08 14:09:53,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 386 transitions, 2318 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:53,116 INFO L231 Difference]: Finished difference. Result has 208 places, 176 transitions, 818 flow [2025-02-08 14:09:53,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=818, PETRI_PLACES=208, PETRI_TRANSITIONS=176} [2025-02-08 14:09:53,116 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 61 predicate places. [2025-02-08 14:09:53,117 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 176 transitions, 818 flow [2025-02-08 14:09:53,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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 14:09:53,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:53,117 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:53,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-08 14:09:53,117 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:53,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:53,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1322950619, now seen corresponding path program 1 times [2025-02-08 14:09:53,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:53,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308981424] [2025-02-08 14:09:53,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:53,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:53,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 14:09:53,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 14:09:53,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:53,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:53,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:53,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308981424] [2025-02-08 14:09:53,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308981424] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:53,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:53,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:53,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868743391] [2025-02-08 14:09:53,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:53,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:53,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:53,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:53,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:53,213 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:09:53,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 176 transitions, 818 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 14:09:53,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:53,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:09:53,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:54,768 INFO L124 PetriNetUnfolderBase]: 10408/21445 cut-off events. [2025-02-08 14:09:54,768 INFO L125 PetriNetUnfolderBase]: For 18820/19553 co-relation queries the response was YES. [2025-02-08 14:09:54,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55479 conditions, 21445 events. 10408/21445 cut-off events. For 18820/19553 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 195483 event pairs, 6187 based on Foata normal form. 825/21569 useless extension candidates. Maximal degree in co-relation 55311. Up to 11658 conditions per place. [2025-02-08 14:09:54,946 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 193 selfloop transitions, 8 changer transitions 0/259 dead transitions. [2025-02-08 14:09:54,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 259 transitions, 1564 flow [2025-02-08 14:09:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 444 transitions. [2025-02-08 14:09:54,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2025-02-08 14:09:54,947 INFO L175 Difference]: Start difference. First operand has 208 places, 176 transitions, 818 flow. Second operand 4 states and 444 transitions. [2025-02-08 14:09:54,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 259 transitions, 1564 flow [2025-02-08 14:09:55,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 259 transitions, 1556 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:55,134 INFO L231 Difference]: Finished difference. Result has 206 places, 174 transitions, 814 flow [2025-02-08 14:09:55,135 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=814, PETRI_PLACES=206, PETRI_TRANSITIONS=174} [2025-02-08 14:09:55,135 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 59 predicate places. [2025-02-08 14:09:55,135 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 174 transitions, 814 flow [2025-02-08 14:09:55,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 14:09:55,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:55,136 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:55,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-08 14:09:55,136 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:55,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1404784207, now seen corresponding path program 1 times [2025-02-08 14:09:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:55,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924500395] [2025-02-08 14:09:55,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:55,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 14:09:55,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 14:09:55,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:55,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:55,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:55,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924500395] [2025-02-08 14:09:55,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924500395] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:55,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514211795] [2025-02-08 14:09:55,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:55,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:55,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:55,235 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 14:09:55,236 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 14:09:55,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 14:09:55,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 14:09:55,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:55,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:55,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:09:55,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:55,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:09:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514211795] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:09:55,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:09:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743690980] [2025-02-08 14:09:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:55,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:55,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:55,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:09:55,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:09:55,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 174 transitions, 814 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 14:09:55,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:55,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:09:55,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:57,183 INFO L124 PetriNetUnfolderBase]: 9264/19228 cut-off events. [2025-02-08 14:09:57,183 INFO L125 PetriNetUnfolderBase]: For 18821/19889 co-relation queries the response was YES. [2025-02-08 14:09:57,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50015 conditions, 19228 events. 9264/19228 cut-off events. For 18821/19889 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 176704 event pairs, 2498 based on Foata normal form. 1092/19829 useless extension candidates. Maximal degree in co-relation 49847. Up to 6483 conditions per place. [2025-02-08 14:09:57,298 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 292 selfloop transitions, 5 changer transitions 0/355 dead transitions. [2025-02-08 14:09:57,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 355 transitions, 2162 flow [2025-02-08 14:09:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:09:57,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:09:57,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 706 transitions. [2025-02-08 14:09:57,300 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7131313131313132 [2025-02-08 14:09:57,300 INFO L175 Difference]: Start difference. First operand has 206 places, 174 transitions, 814 flow. Second operand 6 states and 706 transitions. [2025-02-08 14:09:57,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 355 transitions, 2162 flow [2025-02-08 14:09:57,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 355 transitions, 2116 flow, removed 5 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:57,439 INFO L231 Difference]: Finished difference. Result has 206 places, 171 transitions, 802 flow [2025-02-08 14:09:57,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=206, PETRI_TRANSITIONS=171} [2025-02-08 14:09:57,440 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 59 predicate places. [2025-02-08 14:09:57,440 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 171 transitions, 802 flow [2025-02-08 14:09:57,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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 14:09:57,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:57,440 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:57,450 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 14:09:57,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:57,641 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:57,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:57,641 INFO L85 PathProgramCache]: Analyzing trace with hash -598636117, now seen corresponding path program 1 times [2025-02-08 14:09:57,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:57,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652984954] [2025-02-08 14:09:57,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:57,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 14:09:57,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 14:09:57,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:57,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:57,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:57,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652984954] [2025-02-08 14:09:57,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652984954] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:57,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091353355] [2025-02-08 14:09:57,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:57,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:57,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:57,737 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 14:09:57,739 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 14:09:57,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 14:09:57,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 14:09:57,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:57,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:57,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:09:57,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:09:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:09:57,937 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:09:57,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091353355] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:57,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:09:57,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-08 14:09:57,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286653095] [2025-02-08 14:09:57,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:57,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:09:57,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:57,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:09:57,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:57,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:09:57,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 171 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 14:09:57,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:57,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:09:57,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:59,340 INFO L124 PetriNetUnfolderBase]: 8778/18857 cut-off events. [2025-02-08 14:09:59,341 INFO L125 PetriNetUnfolderBase]: For 16978/17840 co-relation queries the response was YES. [2025-02-08 14:09:59,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48401 conditions, 18857 events. 8778/18857 cut-off events. For 16978/17840 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 177285 event pairs, 5097 based on Foata normal form. 914/19234 useless extension candidates. Maximal degree in co-relation 48234. Up to 9315 conditions per place. [2025-02-08 14:09:59,500 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 154 selfloop transitions, 4 changer transitions 0/217 dead transitions. [2025-02-08 14:09:59,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 217 transitions, 1297 flow [2025-02-08 14:09:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:09:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:09:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2025-02-08 14:09:59,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2025-02-08 14:09:59,502 INFO L175 Difference]: Start difference. First operand has 206 places, 171 transitions, 802 flow. Second operand 3 states and 360 transitions. [2025-02-08 14:09:59,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 217 transitions, 1297 flow [2025-02-08 14:09:59,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 217 transitions, 1284 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 14:09:59,640 INFO L231 Difference]: Finished difference. Result has 202 places, 170 transitions, 797 flow [2025-02-08 14:09:59,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=797, PETRI_PLACES=202, PETRI_TRANSITIONS=170} [2025-02-08 14:09:59,641 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 55 predicate places. [2025-02-08 14:09:59,641 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 170 transitions, 797 flow [2025-02-08 14:09:59,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 14:09:59,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:59,641 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:59,648 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 14:09:59,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:59,842 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:09:59,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:59,842 INFO L85 PathProgramCache]: Analyzing trace with hash 401921204, now seen corresponding path program 1 times [2025-02-08 14:09:59,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:59,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359820868] [2025-02-08 14:09:59,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:59,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-08 14:09:59,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 14:09:59,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:59,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:09:59,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:59,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359820868] [2025-02-08 14:09:59,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359820868] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:09:59,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264885427] [2025-02-08 14:09:59,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:59,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:09:59,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:59,937 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 14:09:59,941 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 14:10:00,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-08 14:10:00,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 14:10:00,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:00,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:00,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:10:00,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:00,155 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:10:00,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:10:00,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264885427] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:00,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:10:00,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:10:00,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279883009] [2025-02-08 14:10:00,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:00,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:10:00,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:00,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:10:00,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:10:00,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:10:00,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 170 transitions, 797 flow. Second operand has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 14:10:00,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:00,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:10:00,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:01,716 INFO L124 PetriNetUnfolderBase]: 9267/19315 cut-off events. [2025-02-08 14:10:01,716 INFO L125 PetriNetUnfolderBase]: For 17837/18784 co-relation queries the response was YES. [2025-02-08 14:10:01,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50191 conditions, 19315 events. 9267/19315 cut-off events. For 17837/18784 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 176485 event pairs, 2563 based on Foata normal form. 1050/20054 useless extension candidates. Maximal degree in co-relation 50026. Up to 6427 conditions per place. [2025-02-08 14:10:01,840 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 291 selfloop transitions, 5 changer transitions 0/349 dead transitions. [2025-02-08 14:10:01,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 349 transitions, 2157 flow [2025-02-08 14:10:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:10:01,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:10:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 700 transitions. [2025-02-08 14:10:01,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7070707070707071 [2025-02-08 14:10:01,841 INFO L175 Difference]: Start difference. First operand has 202 places, 170 transitions, 797 flow. Second operand 6 states and 700 transitions. [2025-02-08 14:10:01,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 349 transitions, 2157 flow [2025-02-08 14:10:01,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 349 transitions, 2137 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:01,998 INFO L231 Difference]: Finished difference. Result has 203 places, 167 transitions, 791 flow [2025-02-08 14:10:01,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=203, PETRI_TRANSITIONS=167} [2025-02-08 14:10:01,998 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 56 predicate places. [2025-02-08 14:10:01,998 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 167 transitions, 791 flow [2025-02-08 14:10:01,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 14:10:01,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:01,999 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:02,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 14:10:02,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:02,199 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:02,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:02,200 INFO L85 PathProgramCache]: Analyzing trace with hash -425343150, now seen corresponding path program 1 times [2025-02-08 14:10:02,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:02,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125001845] [2025-02-08 14:10:02,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:02,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:02,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-08 14:10:02,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 14:10:02,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:02,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:10:02,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:02,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125001845] [2025-02-08 14:10:02,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125001845] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:02,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691128953] [2025-02-08 14:10:02,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:02,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:02,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:02,297 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:10:02,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:10:02,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-08 14:10:02,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 14:10:02,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:02,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:02,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:10:02,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:02,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:10:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691128953] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:02,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:10:02,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-08 14:10:02,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703170578] [2025-02-08 14:10:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:02,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:02,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:02,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:10:02,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 165 [2025-02-08 14:10:02,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 167 transitions, 791 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 14:10:02,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:02,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 165 [2025-02-08 14:10:02,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:04,021 INFO L124 PetriNetUnfolderBase]: 8778/18754 cut-off events. [2025-02-08 14:10:04,022 INFO L125 PetriNetUnfolderBase]: For 17445/18244 co-relation queries the response was YES. [2025-02-08 14:10:04,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48700 conditions, 18754 events. 8778/18754 cut-off events. For 17445/18244 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 173978 event pairs, 5130 based on Foata normal form. 877/19280 useless extension candidates. Maximal degree in co-relation 48534. Up to 9384 conditions per place. [2025-02-08 14:10:04,104 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 154 selfloop transitions, 4 changer transitions 0/212 dead transitions. [2025-02-08 14:10:04,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 212 transitions, 1293 flow [2025-02-08 14:10:04,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:04,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2025-02-08 14:10:04,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7232323232323232 [2025-02-08 14:10:04,105 INFO L175 Difference]: Start difference. First operand has 203 places, 167 transitions, 791 flow. Second operand 3 states and 358 transitions. [2025-02-08 14:10:04,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 212 transitions, 1293 flow [2025-02-08 14:10:04,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 212 transitions, 1280 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 14:10:04,227 INFO L231 Difference]: Finished difference. Result has 199 places, 166 transitions, 786 flow [2025-02-08 14:10:04,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=786, PETRI_PLACES=199, PETRI_TRANSITIONS=166} [2025-02-08 14:10:04,227 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2025-02-08 14:10:04,227 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 166 transitions, 786 flow [2025-02-08 14:10:04,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 14:10:04,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:04,228 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:04,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 14:10:04,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:04,428 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:04,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1232407386, now seen corresponding path program 1 times [2025-02-08 14:10:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:04,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729920599] [2025-02-08 14:10:04,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:04,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:04,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-08 14:10:04,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-08 14:10:04,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:04,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:04,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729920599] [2025-02-08 14:10:04,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729920599] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:04,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:04,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:04,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266674503] [2025-02-08 14:10:04,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:04,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:04,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:04,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:04,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:10:04,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:10:04,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 166 transitions, 786 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 14:10:04,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:04,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:10:04,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:05,911 INFO L124 PetriNetUnfolderBase]: 8778/18561 cut-off events. [2025-02-08 14:10:05,911 INFO L125 PetriNetUnfolderBase]: For 16934/17822 co-relation queries the response was YES. [2025-02-08 14:10:05,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48190 conditions, 18561 events. 8778/18561 cut-off events. For 16934/17822 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 172253 event pairs, 5097 based on Foata normal form. 832/19250 useless extension candidates. Maximal degree in co-relation 48026. Up to 9315 conditions per place. [2025-02-08 14:10:06,045 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 198 selfloop transitions, 6 changer transitions 0/257 dead transitions. [2025-02-08 14:10:06,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 257 transitions, 1577 flow [2025-02-08 14:10:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:06,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:06,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2025-02-08 14:10:06,046 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.706060606060606 [2025-02-08 14:10:06,046 INFO L175 Difference]: Start difference. First operand has 199 places, 166 transitions, 786 flow. Second operand 4 states and 466 transitions. [2025-02-08 14:10:06,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 257 transitions, 1577 flow [2025-02-08 14:10:06,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 257 transitions, 1563 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:06,179 INFO L231 Difference]: Finished difference. Result has 199 places, 165 transitions, 788 flow [2025-02-08 14:10:06,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=788, PETRI_PLACES=199, PETRI_TRANSITIONS=165} [2025-02-08 14:10:06,180 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2025-02-08 14:10:06,180 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 165 transitions, 788 flow [2025-02-08 14:10:06,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 14:10:06,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:06,180 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:06,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-08 14:10:06,180 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:06,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:06,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1018702055, now seen corresponding path program 1 times [2025-02-08 14:10:06,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:06,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425372424] [2025-02-08 14:10:06,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:06,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 14:10:06,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 14:10:06,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:06,290 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:10:06,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:06,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425372424] [2025-02-08 14:10:06,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425372424] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:06,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387497624] [2025-02-08 14:10:06,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:06,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:10:06,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 14:10:06,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 14:10:06,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 14:10:06,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:06,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:10:06,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:06,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:10:06,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387497624] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:06,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:10:06,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2025-02-08 14:10:06,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827312064] [2025-02-08 14:10:06,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:06,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:10:06,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:06,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:10:06,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-08 14:10:06,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:10:06,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 165 transitions, 788 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 14:10:06,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:06,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:10:06,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:08,497 INFO L124 PetriNetUnfolderBase]: 9102/19453 cut-off events. [2025-02-08 14:10:08,498 INFO L125 PetriNetUnfolderBase]: For 17918/18391 co-relation queries the response was YES. [2025-02-08 14:10:08,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51178 conditions, 19453 events. 9102/19453 cut-off events. For 17918/18391 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 179336 event pairs, 6646 based on Foata normal form. 613/19871 useless extension candidates. Maximal degree in co-relation 51014. Up to 12467 conditions per place. [2025-02-08 14:10:08,622 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 243 selfloop transitions, 5 changer transitions 0/297 dead transitions. [2025-02-08 14:10:08,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 297 transitions, 1834 flow [2025-02-08 14:10:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:10:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:10:08,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 620 transitions. [2025-02-08 14:10:08,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2025-02-08 14:10:08,624 INFO L175 Difference]: Start difference. First operand has 199 places, 165 transitions, 788 flow. Second operand 6 states and 620 transitions. [2025-02-08 14:10:08,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 297 transitions, 1834 flow [2025-02-08 14:10:08,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 297 transitions, 1818 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:10:08,815 INFO L231 Difference]: Finished difference. Result has 199 places, 163 transitions, 768 flow [2025-02-08 14:10:08,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=768, PETRI_PLACES=199, PETRI_TRANSITIONS=163} [2025-02-08 14:10:08,815 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2025-02-08 14:10:08,815 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 163 transitions, 768 flow [2025-02-08 14:10:08,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 14:10:08,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:08,816 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:08,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 14:10:09,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-02-08 14:10:09,016 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:09,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:09,017 INFO L85 PathProgramCache]: Analyzing trace with hash -769094061, now seen corresponding path program 1 times [2025-02-08 14:10:09,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:09,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787879286] [2025-02-08 14:10:09,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:09,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:09,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 14:10:09,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 14:10:09,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:09,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:10:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787879286] [2025-02-08 14:10:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787879286] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95473172] [2025-02-08 14:10:09,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:09,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:09,155 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:10:09,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 14:10:09,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 14:10:09,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 14:10:09,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:09,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:09,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:10:09,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:09,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:10:09,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95473172] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:09,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:10:09,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2025-02-08 14:10:09,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175730037] [2025-02-08 14:10:09,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:09,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:09,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:09,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:09,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:10:09,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:10:09,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 163 transitions, 768 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 14:10:09,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:09,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:10:09,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:10,851 INFO L124 PetriNetUnfolderBase]: 8941/18898 cut-off events. [2025-02-08 14:10:10,852 INFO L125 PetriNetUnfolderBase]: For 15674/16295 co-relation queries the response was YES. [2025-02-08 14:10:10,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49474 conditions, 18898 events. 8941/18898 cut-off events. For 15674/16295 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 172319 event pairs, 5432 based on Foata normal form. 557/19282 useless extension candidates. Maximal degree in co-relation 49310. Up to 10327 conditions per place. [2025-02-08 14:10:10,984 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 154 selfloop transitions, 3 changer transitions 0/206 dead transitions. [2025-02-08 14:10:10,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 206 transitions, 1269 flow [2025-02-08 14:10:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2025-02-08 14:10:10,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.646969696969697 [2025-02-08 14:10:10,986 INFO L175 Difference]: Start difference. First operand has 199 places, 163 transitions, 768 flow. Second operand 4 states and 427 transitions. [2025-02-08 14:10:10,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 206 transitions, 1269 flow [2025-02-08 14:10:11,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 206 transitions, 1258 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:10:11,145 INFO L231 Difference]: Finished difference. Result has 198 places, 162 transitions, 764 flow [2025-02-08 14:10:11,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=764, PETRI_PLACES=198, PETRI_TRANSITIONS=162} [2025-02-08 14:10:11,146 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2025-02-08 14:10:11,146 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 162 transitions, 764 flow [2025-02-08 14:10:11,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 14:10:11,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:11,146 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:11,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 14:10:11,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-02-08 14:10:11,347 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:11,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1514991256, now seen corresponding path program 1 times [2025-02-08 14:10:11,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:11,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763728835] [2025-02-08 14:10:11,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:11,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:11,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 14:10:11,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 14:10:11,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:11,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:11,456 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:10:11,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:11,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763728835] [2025-02-08 14:10:11,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763728835] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:11,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985190435] [2025-02-08 14:10:11,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:11,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:11,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:11,460 INFO L229 MonitoredProcess]: Starting monitored process 13 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 14:10:11,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 14:10:11,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 14:10:11,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 14:10:11,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:11,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:11,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:10:11,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:11,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:10:11,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985190435] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:11,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:10:11,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2025-02-08 14:10:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413087772] [2025-02-08 14:10:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:11,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:10:11,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:11,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:10:11,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:10:11,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-02-08 14:10:11,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 162 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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 14:10:11,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:11,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-02-08 14:10:11,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:13,407 INFO L124 PetriNetUnfolderBase]: 9426/19534 cut-off events. [2025-02-08 14:10:13,407 INFO L125 PetriNetUnfolderBase]: For 15888/16374 co-relation queries the response was YES. [2025-02-08 14:10:13,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51620 conditions, 19534 events. 9426/19534 cut-off events. For 15888/16374 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 175591 event pairs, 6196 based on Foata normal form. 594/19957 useless extension candidates. Maximal degree in co-relation 51456. Up to 11675 conditions per place. [2025-02-08 14:10:13,505 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 193 selfloop transitions, 7 changer transitions 98/337 dead transitions. [2025-02-08 14:10:13,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 337 transitions, 2096 flow [2025-02-08 14:10:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:10:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:10:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 726 transitions. [2025-02-08 14:10:13,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-02-08 14:10:13,506 INFO L175 Difference]: Start difference. First operand has 198 places, 162 transitions, 764 flow. Second operand 7 states and 726 transitions. [2025-02-08 14:10:13,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 337 transitions, 2096 flow [2025-02-08 14:10:13,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 337 transitions, 2082 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:10:13,658 INFO L231 Difference]: Finished difference. Result has 200 places, 135 transitions, 657 flow [2025-02-08 14:10:13,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=657, PETRI_PLACES=200, PETRI_TRANSITIONS=135} [2025-02-08 14:10:13,659 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 53 predicate places. [2025-02-08 14:10:13,659 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 135 transitions, 657 flow [2025-02-08 14:10:13,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.0) internal successors, (462), 6 states have internal predecessors, (462), 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 14:10:13,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:13,659 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:13,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 14:10:13,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:13,860 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:13,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:13,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1927858567, now seen corresponding path program 1 times [2025-02-08 14:10:13,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:13,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181518988] [2025-02-08 14:10:13,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:13,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:13,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 14:10:13,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 14:10:13,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:13,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:10:13,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181518988] [2025-02-08 14:10:13,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181518988] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573744484] [2025-02-08 14:10:13,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:13,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:13,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:13,973 INFO L229 MonitoredProcess]: Starting monitored process 14 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 14:10:13,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 14:10:14,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 14:10:14,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 14:10:14,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:14,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:14,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:10:14,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:14,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:10:14,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573744484] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:14,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:10:14,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2025-02-08 14:10:14,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708329460] [2025-02-08 14:10:14,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:14,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:14,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:14,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:14,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:10:14,257 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 165 [2025-02-08 14:10:14,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 135 transitions, 657 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:14,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:14,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 165 [2025-02-08 14:10:14,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:15,040 INFO L124 PetriNetUnfolderBase]: 4926/11000 cut-off events. [2025-02-08 14:10:15,040 INFO L125 PetriNetUnfolderBase]: For 8394/8606 co-relation queries the response was YES. [2025-02-08 14:10:15,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28433 conditions, 11000 events. 4926/11000 cut-off events. For 8394/8606 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 93675 event pairs, 2865 based on Foata normal form. 315/11226 useless extension candidates. Maximal degree in co-relation 28405. Up to 5702 conditions per place. [2025-02-08 14:10:15,104 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 135 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2025-02-08 14:10:15,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 177 transitions, 1118 flow [2025-02-08 14:10:15,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:15,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2025-02-08 14:10:15,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6106060606060606 [2025-02-08 14:10:15,105 INFO L175 Difference]: Start difference. First operand has 200 places, 135 transitions, 657 flow. Second operand 4 states and 403 transitions. [2025-02-08 14:10:15,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 177 transitions, 1118 flow [2025-02-08 14:10:15,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 177 transitions, 1086 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 14:10:15,170 INFO L231 Difference]: Finished difference. Result has 171 places, 134 transitions, 632 flow [2025-02-08 14:10:15,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=632, PETRI_PLACES=171, PETRI_TRANSITIONS=134} [2025-02-08 14:10:15,170 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 24 predicate places. [2025-02-08 14:10:15,170 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 134 transitions, 632 flow [2025-02-08 14:10:15,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:10:15,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:15,171 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:15,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 14:10:15,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:15,371 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:15,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1212244762, now seen corresponding path program 1 times [2025-02-08 14:10:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:15,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280366037] [2025-02-08 14:10:15,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:15,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 14:10:15,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 14:10:15,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:15,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-02-08 14:10:15,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:15,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280366037] [2025-02-08 14:10:15,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280366037] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:15,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:15,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:10:15,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239871920] [2025-02-08 14:10:15,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:15,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:10:15,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:15,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:10:15,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:10:15,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 165 [2025-02-08 14:10:15,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 134 transitions, 632 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 14:10:15,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:15,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 165 [2025-02-08 14:10:15,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:16,289 INFO L124 PetriNetUnfolderBase]: 4926/10756 cut-off events. [2025-02-08 14:10:16,289 INFO L125 PetriNetUnfolderBase]: For 6591/6869 co-relation queries the response was YES. [2025-02-08 14:10:16,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26773 conditions, 10756 events. 4926/10756 cut-off events. For 6591/6869 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 90825 event pairs, 2110 based on Foata normal form. 381/11078 useless extension candidates. Maximal degree in co-relation 26748. Up to 3961 conditions per place. [2025-02-08 14:10:16,369 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 175 selfloop transitions, 6 changer transitions 1/221 dead transitions. [2025-02-08 14:10:16,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 221 transitions, 1364 flow [2025-02-08 14:10:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:10:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:10:16,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2025-02-08 14:10:16,370 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6772727272727272 [2025-02-08 14:10:16,370 INFO L175 Difference]: Start difference. First operand has 171 places, 134 transitions, 632 flow. Second operand 4 states and 447 transitions. [2025-02-08 14:10:16,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 221 transitions, 1364 flow [2025-02-08 14:10:16,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 221 transitions, 1359 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:10:16,425 INFO L231 Difference]: Finished difference. Result has 170 places, 133 transitions, 635 flow [2025-02-08 14:10:16,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=635, PETRI_PLACES=170, PETRI_TRANSITIONS=133} [2025-02-08 14:10:16,426 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 23 predicate places. [2025-02-08 14:10:16,426 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 133 transitions, 635 flow [2025-02-08 14:10:16,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 14:10:16,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:16,426 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:16,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-08 14:10:16,426 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-02-08 14:10:16,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:16,427 INFO L85 PathProgramCache]: Analyzing trace with hash -365926117, now seen corresponding path program 1 times [2025-02-08 14:10:16,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:16,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711658825] [2025-02-08 14:10:16,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:16,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:16,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes.