./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:54,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:55,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:55,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:55,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:55,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:55,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:55,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:55,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:55,034 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:55,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:55,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:55,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:55,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:55,035 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:55,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:55,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:55,036 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:55,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:55,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:55,038 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:55,038 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:55,038 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:55,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:55,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:55,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:55,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:55,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:55,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:55,039 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:55,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:55,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:55,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:55,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:55,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:55,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:55,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:55,040 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 -> d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 [2025-02-08 14:07:55,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:55,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:55,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:55,335 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:55,336 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:55,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2025-02-08 14:07:56,709 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5fd54bac/2a05f825b7c041bf965fd3d432d283d5/FLAG7ceaf6665 [2025-02-08 14:07:57,026 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:57,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2025-02-08 14:07:57,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5fd54bac/2a05f825b7c041bf965fd3d432d283d5/FLAG7ceaf6665 [2025-02-08 14:07:57,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5fd54bac/2a05f825b7c041bf965fd3d432d283d5 [2025-02-08 14:07:57,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:57,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:57,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:57,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:57,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:57,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c88d4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57, skipping insertion in model container [2025-02-08 14:07:57,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:57,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:57,274 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:57,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:57,317 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:57,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57 WrapperNode [2025-02-08 14:07:57,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:57,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:57,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:57,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:57,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,364 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 240 [2025-02-08 14:07:57,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:57,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:57,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:57,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:57,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,401 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 14:07:57,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,413 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:57,430 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:57,430 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:57,430 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:57,431 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (1/1) ... [2025-02-08 14:07:57,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:57,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:57,465 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 14:07:57,468 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 14:07:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:07:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:07:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:07:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:07:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:57,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:57,496 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 14:07:57,597 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:57,599 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:57,792 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-9: #t~ite2#1 := #t~ret1#1; [2025-02-08 14:07:57,792 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 14:07:57,792 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:57,792 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-12: havoc minus_#t~short31#1, minus_#t~short32#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:57,792 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-13: #t~ret1#1 := minus_#res#1; [2025-02-08 14:07:57,871 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: #t~ite7#1 := #t~ret6#1; [2025-02-08 14:07:57,871 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret6#1 && #t~ret6#1 <= 2147483647; [2025-02-08 14:07:57,871 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:57,871 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-12: havoc minus_#t~short31#1, minus_#t~short32#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:57,871 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-13: #t~ret6#1 := minus_#res#1; [2025-02-08 14:07:57,947 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-9: #t~ite12#1 := #t~ret11#1; [2025-02-08 14:07:57,947 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret11#1 && #t~ret11#1 <= 2147483647; [2025-02-08 14:07:57,947 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:57,947 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-12: havoc minus_#t~short31#1, minus_#t~short32#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:57,947 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-13: #t~ret11#1 := minus_#res#1; [2025-02-08 14:07:58,055 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:58,055 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:58,319 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:58,319 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:58,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:58 BoogieIcfgContainer [2025-02-08 14:07:58,320 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:58,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:58,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:58,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:58,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:57" (1/3) ... [2025-02-08 14:07:58,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38637deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:58, skipping insertion in model container [2025-02-08 14:07:58,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:57" (2/3) ... [2025-02-08 14:07:58,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38637deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:58, skipping insertion in model container [2025-02-08 14:07:58,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:58" (3/3) ... [2025-02-08 14:07:58,329 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2025-02-08 14:07:58,344 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:58,345 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-subst.wvr.c that has 4 procedures, 90 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-02-08 14:07:58,346 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:58,453 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:07:58,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 229 flow [2025-02-08 14:07:58,564 INFO L124 PetriNetUnfolderBase]: 15/101 cut-off events. [2025-02-08 14:07:58,566 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:07:58,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 101 events. 15/101 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 386 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2025-02-08 14:07:58,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 229 flow [2025-02-08 14:07:58,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 99 transitions, 213 flow [2025-02-08 14:07:58,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:58,600 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;@2a296a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:58,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 14:07:58,611 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:58,611 INFO L124 PetriNetUnfolderBase]: 8/43 cut-off events. [2025-02-08 14:07:58,612 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:07:58,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:58,612 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:58,613 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:58,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1812819194, now seen corresponding path program 1 times [2025-02-08 14:07:58,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:58,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252252602] [2025-02-08 14:07:58,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:58,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:58,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:58,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:58,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:58,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:58,943 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 14:07:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:58,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252252602] [2025-02-08 14:07:58,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252252602] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:58,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:58,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:58,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578112772] [2025-02-08 14:07:58,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:58,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:58,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:58,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:58,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:59,025 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:07:59,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 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 14:07:59,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:59,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:07:59,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:01,294 INFO L124 PetriNetUnfolderBase]: 14426/23119 cut-off events. [2025-02-08 14:08:01,294 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2025-02-08 14:08:01,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42888 conditions, 23119 events. 14426/23119 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 1174. Compared 189503 event pairs, 5420 based on Foata normal form. 532/19545 useless extension candidates. Maximal degree in co-relation 41883. Up to 9872 conditions per place. [2025-02-08 14:08:01,518 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 101 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2025-02-08 14:08:01,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 156 transitions, 549 flow [2025-02-08 14:08:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2025-02-08 14:08:01,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7788461538461539 [2025-02-08 14:08:01,534 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 213 flow. Second operand 4 states and 324 transitions. [2025-02-08 14:08:01,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 156 transitions, 549 flow [2025-02-08 14:08:01,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 156 transitions, 534 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:08:01,559 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 230 flow [2025-02-08 14:08:01,561 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=94, PETRI_TRANSITIONS=100} [2025-02-08 14:08:01,565 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-02-08 14:08:01,566 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 230 flow [2025-02-08 14:08:01,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 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 14:08:01,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:01,567 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:01,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:08:01,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:01,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:01,568 INFO L85 PathProgramCache]: Analyzing trace with hash -362819544, now seen corresponding path program 1 times [2025-02-08 14:08:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:01,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724410566] [2025-02-08 14:08:01,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:01,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:01,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:08:01,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:08:01,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:01,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:01,678 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 14:08:01,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:01,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724410566] [2025-02-08 14:08:01,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724410566] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:01,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:01,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:01,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141820618] [2025-02-08 14:08:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:01,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:01,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:01,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:01,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 104 [2025-02-08 14:08:01,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 14:08:01,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:01,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 104 [2025-02-08 14:08:01,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:03,335 INFO L124 PetriNetUnfolderBase]: 11022/19619 cut-off events. [2025-02-08 14:08:03,335 INFO L125 PetriNetUnfolderBase]: For 2359/2381 co-relation queries the response was YES. [2025-02-08 14:08:03,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37424 conditions, 19619 events. 11022/19619 cut-off events. For 2359/2381 co-relation queries the response was YES. Maximal size of possible extension queue 1031. Compared 175522 event pairs, 2870 based on Foata normal form. 22/17142 useless extension candidates. Maximal degree in co-relation 22040. Up to 9417 conditions per place. [2025-02-08 14:08:03,485 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 69 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2025-02-08 14:08:03,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 427 flow [2025-02-08 14:08:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2025-02-08 14:08:03,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2025-02-08 14:08:03,488 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 230 flow. Second operand 4 states and 299 transitions. [2025-02-08 14:08:03,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 427 flow [2025-02-08 14:08:03,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 126 transitions, 427 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:03,541 INFO L231 Difference]: Finished difference. Result has 96 places, 99 transitions, 232 flow [2025-02-08 14:08:03,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=96, PETRI_TRANSITIONS=99} [2025-02-08 14:08:03,542 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-02-08 14:08:03,543 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 99 transitions, 232 flow [2025-02-08 14:08:03,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 14:08:03,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:03,543 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:03,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:08:03,543 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:03,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2012639774, now seen corresponding path program 1 times [2025-02-08 14:08:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759149284] [2025-02-08 14:08:03,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:03,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:03,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:08:03,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:08:03,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:03,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:03,685 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 14:08:03,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:03,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759149284] [2025-02-08 14:08:03,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759149284] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:03,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:03,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:03,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983804521] [2025-02-08 14:08:03,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:03,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:03,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:03,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:03,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:03,709 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 104 [2025-02-08 14:08:03,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 99 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 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 14:08:03,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:03,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 104 [2025-02-08 14:08:03,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:04,954 INFO L124 PetriNetUnfolderBase]: 10894/19231 cut-off events. [2025-02-08 14:08:04,955 INFO L125 PetriNetUnfolderBase]: For 2961/3480 co-relation queries the response was YES. [2025-02-08 14:08:04,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36109 conditions, 19231 events. 10894/19231 cut-off events. For 2961/3480 co-relation queries the response was YES. Maximal size of possible extension queue 1021. Compared 170051 event pairs, 3510 based on Foata normal form. 954/16740 useless extension candidates. Maximal degree in co-relation 22813. Up to 8518 conditions per place. [2025-02-08 14:08:05,073 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 70 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2025-02-08 14:08:05,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 124 transitions, 443 flow [2025-02-08 14:08:05,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2025-02-08 14:08:05,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2025-02-08 14:08:05,076 INFO L175 Difference]: Start difference. First operand has 96 places, 99 transitions, 232 flow. Second operand 4 states and 296 transitions. [2025-02-08 14:08:05,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 124 transitions, 443 flow [2025-02-08 14:08:05,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 124 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:05,080 INFO L231 Difference]: Finished difference. Result has 95 places, 97 transitions, 229 flow [2025-02-08 14:08:05,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=229, PETRI_PLACES=95, PETRI_TRANSITIONS=97} [2025-02-08 14:08:05,080 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2025-02-08 14:08:05,081 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 97 transitions, 229 flow [2025-02-08 14:08:05,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 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 14:08:05,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:05,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:05,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:08:05,081 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:05,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:05,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1637465898, now seen corresponding path program 1 times [2025-02-08 14:08:05,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:05,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706410730] [2025-02-08 14:08:05,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:05,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:05,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:08:05,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:08:05,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:05,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:05,185 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 14:08:05,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:05,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706410730] [2025-02-08 14:08:05,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706410730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:05,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:05,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:05,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543334815] [2025-02-08 14:08:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:05,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:05,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:05,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 104 [2025-02-08 14:08:05,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 97 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 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 14:08:05,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:05,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 104 [2025-02-08 14:08:05,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:06,443 INFO L124 PetriNetUnfolderBase]: 11044/19389 cut-off events. [2025-02-08 14:08:06,444 INFO L125 PetriNetUnfolderBase]: For 3518/3540 co-relation queries the response was YES. [2025-02-08 14:08:06,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37845 conditions, 19389 events. 11044/19389 cut-off events. For 3518/3540 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 170380 event pairs, 2870 based on Foata normal form. 288/17510 useless extension candidates. Maximal degree in co-relation 22494. Up to 9683 conditions per place. [2025-02-08 14:08:06,601 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 70 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2025-02-08 14:08:06,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 123 transitions, 428 flow [2025-02-08 14:08:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2025-02-08 14:08:06,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7091346153846154 [2025-02-08 14:08:06,604 INFO L175 Difference]: Start difference. First operand has 95 places, 97 transitions, 229 flow. Second operand 4 states and 295 transitions. [2025-02-08 14:08:06,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 123 transitions, 428 flow [2025-02-08 14:08:06,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 123 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:06,657 INFO L231 Difference]: Finished difference. Result has 95 places, 96 transitions, 226 flow [2025-02-08 14:08:06,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2025-02-08 14:08:06,658 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2025-02-08 14:08:06,658 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 226 flow [2025-02-08 14:08:06,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 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 14:08:06,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:06,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:06,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:08:06,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:06,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2032677098, now seen corresponding path program 1 times [2025-02-08 14:08:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345593418] [2025-02-08 14:08:06,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:06,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:06,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:06,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:06,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:06,774 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 14:08:06,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:06,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345593418] [2025-02-08 14:08:06,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345593418] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:06,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:06,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:06,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326145699] [2025-02-08 14:08:06,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:06,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:06,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:06,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:06,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:06,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 104 [2025-02-08 14:08:06,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 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 14:08:06,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:06,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 104 [2025-02-08 14:08:06,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:07,686 INFO L124 PetriNetUnfolderBase]: 9034/17001 cut-off events. [2025-02-08 14:08:07,687 INFO L125 PetriNetUnfolderBase]: For 2411/2623 co-relation queries the response was YES. [2025-02-08 14:08:07,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31471 conditions, 17001 events. 9034/17001 cut-off events. For 2411/2623 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 156677 event pairs, 3466 based on Foata normal form. 212/14520 useless extension candidates. Maximal degree in co-relation 19897. Up to 6077 conditions per place. [2025-02-08 14:08:07,773 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 68 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2025-02-08 14:08:07,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 122 transitions, 436 flow [2025-02-08 14:08:07,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 297 transitions. [2025-02-08 14:08:07,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7139423076923077 [2025-02-08 14:08:07,775 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 226 flow. Second operand 4 states and 297 transitions. [2025-02-08 14:08:07,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 122 transitions, 436 flow [2025-02-08 14:08:07,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 122 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:07,785 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 225 flow [2025-02-08 14:08:07,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2025-02-08 14:08:07,786 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2025-02-08 14:08:07,786 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 225 flow [2025-02-08 14:08:07,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 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 14:08:07,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:07,786 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:07,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:08:07,789 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:07,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:07,790 INFO L85 PathProgramCache]: Analyzing trace with hash -778165078, now seen corresponding path program 1 times [2025-02-08 14:08:07,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:07,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539291458] [2025-02-08 14:08:07,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:07,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:07,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:07,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:07,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:07,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:07,908 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 14:08:07,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:07,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539291458] [2025-02-08 14:08:07,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539291458] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:07,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:07,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:07,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896851774] [2025-02-08 14:08:07,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:07,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:07,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:07,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:07,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:07,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2025-02-08 14:08:07,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:07,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:07,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2025-02-08 14:08:07,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:08,920 INFO L124 PetriNetUnfolderBase]: 14689/22806 cut-off events. [2025-02-08 14:08:08,920 INFO L125 PetriNetUnfolderBase]: For 2084/2084 co-relation queries the response was YES. [2025-02-08 14:08:08,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46927 conditions, 22806 events. 14689/22806 cut-off events. For 2084/2084 co-relation queries the response was YES. Maximal size of possible extension queue 1195. Compared 180034 event pairs, 2738 based on Foata normal form. 0/20441 useless extension candidates. Maximal degree in co-relation 28308. Up to 11365 conditions per place. [2025-02-08 14:08:09,028 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 97 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2025-02-08 14:08:09,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 545 flow [2025-02-08 14:08:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:09,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 377 transitions. [2025-02-08 14:08:09,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-02-08 14:08:09,030 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 225 flow. Second operand 5 states and 377 transitions. [2025-02-08 14:08:09,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 545 flow [2025-02-08 14:08:09,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 148 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:09,073 INFO L231 Difference]: Finished difference. Result has 96 places, 94 transitions, 228 flow [2025-02-08 14:08:09,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=228, PETRI_PLACES=96, PETRI_TRANSITIONS=94} [2025-02-08 14:08:09,073 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-02-08 14:08:09,073 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 94 transitions, 228 flow [2025-02-08 14:08:09,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:09,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:09,074 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:09,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:08:09,074 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:09,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash -778164085, now seen corresponding path program 1 times [2025-02-08 14:08:09,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248269816] [2025-02-08 14:08:09,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:09,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:09,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:09,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:09,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:09,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:09,127 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 14:08:09,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:09,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248269816] [2025-02-08 14:08:09,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248269816] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:09,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:09,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:09,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441805586] [2025-02-08 14:08:09,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:09,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:09,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:09,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:09,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:09,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:09,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 94 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 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 14:08:09,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:09,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:09,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:10,100 INFO L124 PetriNetUnfolderBase]: 12146/20317 cut-off events. [2025-02-08 14:08:10,100 INFO L125 PetriNetUnfolderBase]: For 3909/3909 co-relation queries the response was YES. [2025-02-08 14:08:10,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41302 conditions, 20317 events. 12146/20317 cut-off events. For 3909/3909 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 172168 event pairs, 5655 based on Foata normal form. 266/18159 useless extension candidates. Maximal degree in co-relation 25172. Up to 9976 conditions per place. [2025-02-08 14:08:10,186 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 99 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2025-02-08 14:08:10,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 149 transitions, 548 flow [2025-02-08 14:08:10,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:10,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2025-02-08 14:08:10,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7668269230769231 [2025-02-08 14:08:10,188 INFO L175 Difference]: Start difference. First operand has 96 places, 94 transitions, 228 flow. Second operand 4 states and 319 transitions. [2025-02-08 14:08:10,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 149 transitions, 548 flow [2025-02-08 14:08:10,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 149 transitions, 543 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:10,212 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 223 flow [2025-02-08 14:08:10,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=223, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2025-02-08 14:08:10,213 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-02-08 14:08:10,213 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 223 flow [2025-02-08 14:08:10,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 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 14:08:10,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:10,213 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:10,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:08:10,213 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:10,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:10,214 INFO L85 PathProgramCache]: Analyzing trace with hash 37487579, now seen corresponding path program 1 times [2025-02-08 14:08:10,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:10,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902911414] [2025-02-08 14:08:10,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:10,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:10,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:10,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:10,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:10,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:10,271 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 14:08:10,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:10,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902911414] [2025-02-08 14:08:10,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902911414] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:10,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:10,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:10,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193612076] [2025-02-08 14:08:10,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:10,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:10,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:10,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:10,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:10,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 104 [2025-02-08 14:08:10,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 14:08:10,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:10,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 104 [2025-02-08 14:08:10,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:11,194 INFO L124 PetriNetUnfolderBase]: 11163/19263 cut-off events. [2025-02-08 14:08:11,195 INFO L125 PetriNetUnfolderBase]: For 2985/3247 co-relation queries the response was YES. [2025-02-08 14:08:11,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38082 conditions, 19263 events. 11163/19263 cut-off events. For 2985/3247 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 167367 event pairs, 3940 based on Foata normal form. 902/17060 useless extension candidates. Maximal degree in co-relation 24010. Up to 7798 conditions per place. [2025-02-08 14:08:11,294 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 69 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2025-02-08 14:08:11,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 436 flow [2025-02-08 14:08:11,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:11,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2025-02-08 14:08:11,296 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7091346153846154 [2025-02-08 14:08:11,296 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 223 flow. Second operand 4 states and 295 transitions. [2025-02-08 14:08:11,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 436 flow [2025-02-08 14:08:11,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:11,304 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 218 flow [2025-02-08 14:08:11,304 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2025-02-08 14:08:11,305 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2025-02-08 14:08:11,305 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 218 flow [2025-02-08 14:08:11,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 14:08:11,305 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:11,305 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:11,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:08:11,305 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:11,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:11,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1646686989, now seen corresponding path program 1 times [2025-02-08 14:08:11,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:11,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414774219] [2025-02-08 14:08:11,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:11,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:11,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:11,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:11,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:11,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:11,414 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 14:08:11,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:11,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414774219] [2025-02-08 14:08:11,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414774219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:11,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:11,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:11,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293502988] [2025-02-08 14:08:11,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:11,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:11,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:11,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:11,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:11,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:11,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 53.166666666666664) internal successors, (319), 6 states have internal predecessors, (319), 0 states have call successors, (0), 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 14:08:11,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:11,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:11,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:12,825 INFO L124 PetriNetUnfolderBase]: 14423/22108 cut-off events. [2025-02-08 14:08:12,826 INFO L125 PetriNetUnfolderBase]: For 2345/2367 co-relation queries the response was YES. [2025-02-08 14:08:12,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46814 conditions, 22108 events. 14423/22108 cut-off events. For 2345/2367 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 171363 event pairs, 2716 based on Foata normal form. 22/20313 useless extension candidates. Maximal degree in co-relation 26817. Up to 7329 conditions per place. [2025-02-08 14:08:13,014 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 121 selfloop transitions, 7 changer transitions 0/172 dead transitions. [2025-02-08 14:08:13,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 172 transitions, 657 flow [2025-02-08 14:08:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2025-02-08 14:08:13,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2025-02-08 14:08:13,016 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 218 flow. Second operand 6 states and 440 transitions. [2025-02-08 14:08:13,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 172 transitions, 657 flow [2025-02-08 14:08:13,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 172 transitions, 651 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:13,046 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 236 flow [2025-02-08 14:08:13,046 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2025-02-08 14:08:13,047 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2025-02-08 14:08:13,047 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 236 flow [2025-02-08 14:08:13,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.166666666666664) internal successors, (319), 6 states have internal predecessors, (319), 0 states have call successors, (0), 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 14:08:13,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:13,047 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:13,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:08:13,048 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:13,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash -808361812, now seen corresponding path program 1 times [2025-02-08 14:08:13,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:13,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870172191] [2025-02-08 14:08:13,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:13,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:13,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:13,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:13,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:13,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:13,137 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 14:08:13,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:13,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870172191] [2025-02-08 14:08:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870172191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:13,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:13,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:13,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272956108] [2025-02-08 14:08:13,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:13,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:13,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:13,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:13,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:13,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2025-02-08 14:08:13,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 0 states have call successors, (0), 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 14:08:13,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:13,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2025-02-08 14:08:13,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:14,127 INFO L124 PetriNetUnfolderBase]: 13544/21370 cut-off events. [2025-02-08 14:08:14,128 INFO L125 PetriNetUnfolderBase]: For 9351/10455 co-relation queries the response was YES. [2025-02-08 14:08:14,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46949 conditions, 21370 events. 13544/21370 cut-off events. For 9351/10455 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 170314 event pairs, 3445 based on Foata normal form. 880/19664 useless extension candidates. Maximal degree in co-relation 29318. Up to 8356 conditions per place. [2025-02-08 14:08:14,251 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 101 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2025-02-08 14:08:14,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 147 transitions, 622 flow [2025-02-08 14:08:14,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:14,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2025-02-08 14:08:14,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2025-02-08 14:08:14,252 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 236 flow. Second operand 5 states and 375 transitions. [2025-02-08 14:08:14,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 147 transitions, 622 flow [2025-02-08 14:08:14,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 147 transitions, 608 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:14,261 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 243 flow [2025-02-08 14:08:14,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=243, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2025-02-08 14:08:14,262 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2025-02-08 14:08:14,262 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 243 flow [2025-02-08 14:08:14,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 0 states have call successors, (0), 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 14:08:14,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:14,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:14,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:08:14,263 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:14,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:14,263 INFO L85 PathProgramCache]: Analyzing trace with hash -808360819, now seen corresponding path program 1 times [2025-02-08 14:08:14,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:14,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878752059] [2025-02-08 14:08:14,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:14,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:14,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:14,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:14,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:14,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:14,307 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 14:08:14,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:14,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878752059] [2025-02-08 14:08:14,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878752059] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:14,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:14,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923732933] [2025-02-08 14:08:14,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:14,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:14,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:14,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:14,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:14,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:14,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 243 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:14,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:14,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:14,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:15,528 INFO L124 PetriNetUnfolderBase]: 15356/26103 cut-off events. [2025-02-08 14:08:15,528 INFO L125 PetriNetUnfolderBase]: For 7834/9060 co-relation queries the response was YES. [2025-02-08 14:08:15,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56747 conditions, 26103 events. 15356/26103 cut-off events. For 7834/9060 co-relation queries the response was YES. Maximal size of possible extension queue 1313. Compared 231096 event pairs, 7310 based on Foata normal form. 998/24495 useless extension candidates. Maximal degree in co-relation 35694. Up to 12373 conditions per place. [2025-02-08 14:08:15,623 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 103 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2025-02-08 14:08:15,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 150 transitions, 631 flow [2025-02-08 14:08:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2025-02-08 14:08:15,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7644230769230769 [2025-02-08 14:08:15,624 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 243 flow. Second operand 4 states and 318 transitions. [2025-02-08 14:08:15,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 150 transitions, 631 flow [2025-02-08 14:08:15,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 150 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:15,635 INFO L231 Difference]: Finished difference. Result has 102 places, 92 transitions, 259 flow [2025-02-08 14:08:15,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=102, PETRI_TRANSITIONS=92} [2025-02-08 14:08:15,636 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-02-08 14:08:15,636 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 92 transitions, 259 flow [2025-02-08 14:08:15,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:15,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:15,636 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:15,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:08:15,636 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:15,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:15,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1162115631, now seen corresponding path program 1 times [2025-02-08 14:08:15,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:15,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384252449] [2025-02-08 14:08:15,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:15,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:15,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:15,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:15,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:15,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:15,693 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 14:08:15,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:15,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384252449] [2025-02-08 14:08:15,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384252449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:15,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:15,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465919488] [2025-02-08 14:08:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:15,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:15,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:15,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:15,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:15,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 104 [2025-02-08 14:08:15,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 92 transitions, 259 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 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 14:08:15,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:15,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 104 [2025-02-08 14:08:15,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:16,671 INFO L124 PetriNetUnfolderBase]: 11787/22205 cut-off events. [2025-02-08 14:08:16,671 INFO L125 PetriNetUnfolderBase]: For 8411/9639 co-relation queries the response was YES. [2025-02-08 14:08:16,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47204 conditions, 22205 events. 11787/22205 cut-off events. For 8411/9639 co-relation queries the response was YES. Maximal size of possible extension queue 1102. Compared 211837 event pairs, 5087 based on Foata normal form. 975/20587 useless extension candidates. Maximal degree in co-relation 32638. Up to 8797 conditions per place. [2025-02-08 14:08:16,812 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 73 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2025-02-08 14:08:16,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 120 transitions, 512 flow [2025-02-08 14:08:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:16,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2025-02-08 14:08:16,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2025-02-08 14:08:16,814 INFO L175 Difference]: Start difference. First operand has 102 places, 92 transitions, 259 flow. Second operand 4 states and 296 transitions. [2025-02-08 14:08:16,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 120 transitions, 512 flow [2025-02-08 14:08:16,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 120 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:16,830 INFO L231 Difference]: Finished difference. Result has 103 places, 91 transitions, 258 flow [2025-02-08 14:08:16,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=103, PETRI_TRANSITIONS=91} [2025-02-08 14:08:16,831 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2025-02-08 14:08:16,831 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 91 transitions, 258 flow [2025-02-08 14:08:16,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 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 14:08:16,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:16,832 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:16,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:08:16,832 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:16,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:16,833 INFO L85 PathProgramCache]: Analyzing trace with hash 426378673, now seen corresponding path program 1 times [2025-02-08 14:08:16,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:16,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071860208] [2025-02-08 14:08:16,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:16,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:16,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:16,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:16,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:16,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:16,871 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 14:08:16,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:16,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071860208] [2025-02-08 14:08:16,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071860208] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:16,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44395688] [2025-02-08 14:08:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:16,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:16,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:16,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:16,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:16,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:16,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 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 14:08:16,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:16,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:16,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:18,196 INFO L124 PetriNetUnfolderBase]: 18578/29457 cut-off events. [2025-02-08 14:08:18,196 INFO L125 PetriNetUnfolderBase]: For 11016/11893 co-relation queries the response was YES. [2025-02-08 14:08:18,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68048 conditions, 29457 events. 18578/29457 cut-off events. For 11016/11893 co-relation queries the response was YES. Maximal size of possible extension queue 1426. Compared 246885 event pairs, 7959 based on Foata normal form. 1109/28439 useless extension candidates. Maximal degree in co-relation 49401. Up to 13731 conditions per place. [2025-02-08 14:08:18,367 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 103 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2025-02-08 14:08:18,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 149 transitions, 633 flow [2025-02-08 14:08:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2025-02-08 14:08:18,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7620192307692307 [2025-02-08 14:08:18,368 INFO L175 Difference]: Start difference. First operand has 103 places, 91 transitions, 258 flow. Second operand 4 states and 317 transitions. [2025-02-08 14:08:18,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 149 transitions, 633 flow [2025-02-08 14:08:18,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 149 transitions, 626 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:18,397 INFO L231 Difference]: Finished difference. Result has 102 places, 90 transitions, 254 flow [2025-02-08 14:08:18,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=102, PETRI_TRANSITIONS=90} [2025-02-08 14:08:18,398 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-02-08 14:08:18,398 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 90 transitions, 254 flow [2025-02-08 14:08:18,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 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 14:08:18,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:18,398 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:18,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:08:18,398 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:18,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 710588265, now seen corresponding path program 1 times [2025-02-08 14:08:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:18,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906922129] [2025-02-08 14:08:18,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:18,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:18,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:08:18,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:08:18,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:18,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:18,481 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 14:08:18,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906922129] [2025-02-08 14:08:18,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906922129] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:18,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:18,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:18,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179295421] [2025-02-08 14:08:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:18,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:18,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:18,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:18,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:18,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:18,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 90 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 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 14:08:18,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:18,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:18,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:19,980 INFO L124 PetriNetUnfolderBase]: 20230/31627 cut-off events. [2025-02-08 14:08:19,980 INFO L125 PetriNetUnfolderBase]: For 15185/16447 co-relation queries the response was YES. [2025-02-08 14:08:20,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75334 conditions, 31627 events. 20230/31627 cut-off events. For 15185/16447 co-relation queries the response was YES. Maximal size of possible extension queue 1581. Compared 261613 event pairs, 3941 based on Foata normal form. 1262/30554 useless extension candidates. Maximal degree in co-relation 50761. Up to 10384 conditions per place. [2025-02-08 14:08:20,152 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 127 selfloop transitions, 7 changer transitions 0/174 dead transitions. [2025-02-08 14:08:20,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 174 transitions, 789 flow [2025-02-08 14:08:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2025-02-08 14:08:20,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7003205128205128 [2025-02-08 14:08:20,153 INFO L175 Difference]: Start difference. First operand has 102 places, 90 transitions, 254 flow. Second operand 6 states and 437 transitions. [2025-02-08 14:08:20,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 174 transitions, 789 flow [2025-02-08 14:08:20,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 174 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:20,245 INFO L231 Difference]: Finished difference. Result has 106 places, 90 transitions, 272 flow [2025-02-08 14:08:20,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=272, PETRI_PLACES=106, PETRI_TRANSITIONS=90} [2025-02-08 14:08:20,246 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2025-02-08 14:08:20,246 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 272 flow [2025-02-08 14:08:20,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 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 14:08:20,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:20,246 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:20,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:08:20,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:20,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:20,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1472089331, now seen corresponding path program 1 times [2025-02-08 14:08:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:20,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409576058] [2025-02-08 14:08:20,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:20,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:20,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:20,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:20,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:20,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:20,316 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 14:08:20,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:20,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409576058] [2025-02-08 14:08:20,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409576058] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:20,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:20,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:08:20,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055919354] [2025-02-08 14:08:20,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:20,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:20,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:20,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:20,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:20,342 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:20,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:20,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:20,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:20,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:22,192 INFO L124 PetriNetUnfolderBase]: 19765/30227 cut-off events. [2025-02-08 14:08:22,192 INFO L125 PetriNetUnfolderBase]: For 13106/14320 co-relation queries the response was YES. [2025-02-08 14:08:22,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75715 conditions, 30227 events. 19765/30227 cut-off events. For 13106/14320 co-relation queries the response was YES. Maximal size of possible extension queue 1500. Compared 242056 event pairs, 8374 based on Foata normal form. 1609/29831 useless extension candidates. Maximal degree in co-relation 50769. Up to 14274 conditions per place. [2025-02-08 14:08:22,365 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 158 selfloop transitions, 7 changer transitions 0/203 dead transitions. [2025-02-08 14:08:22,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 203 transitions, 944 flow [2025-02-08 14:08:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:22,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2025-02-08 14:08:22,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-02-08 14:08:22,367 INFO L175 Difference]: Start difference. First operand has 106 places, 90 transitions, 272 flow. Second operand 6 states and 468 transitions. [2025-02-08 14:08:22,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 203 transitions, 944 flow [2025-02-08 14:08:22,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 203 transitions, 931 flow, removed 1 selfloop flow, removed 6 redundant places. [2025-02-08 14:08:22,519 INFO L231 Difference]: Finished difference. Result has 106 places, 90 transitions, 279 flow [2025-02-08 14:08:22,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=106, PETRI_TRANSITIONS=90} [2025-02-08 14:08:22,520 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2025-02-08 14:08:22,520 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 279 flow [2025-02-08 14:08:22,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:22,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:22,521 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:22,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:08:22,521 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:22,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:22,521 INFO L85 PathProgramCache]: Analyzing trace with hash 100693074, now seen corresponding path program 1 times [2025-02-08 14:08:22,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:22,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289046393] [2025-02-08 14:08:22,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:22,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:22,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:22,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:22,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:22,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:22,584 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 14:08:22,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:22,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289046393] [2025-02-08 14:08:22,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289046393] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:22,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:22,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:22,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984410326] [2025-02-08 14:08:22,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:22,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:22,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:22,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:22,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:22,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:22,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 279 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:22,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:22,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:22,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:24,800 INFO L124 PetriNetUnfolderBase]: 21041/36736 cut-off events. [2025-02-08 14:08:24,800 INFO L125 PetriNetUnfolderBase]: For 30018/32713 co-relation queries the response was YES. [2025-02-08 14:08:24,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86283 conditions, 36736 events. 21041/36736 cut-off events. For 30018/32713 co-relation queries the response was YES. Maximal size of possible extension queue 1710. Compared 349838 event pairs, 11284 based on Foata normal form. 2695/35295 useless extension candidates. Maximal degree in co-relation 58554. Up to 17893 conditions per place. [2025-02-08 14:08:24,923 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 110 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2025-02-08 14:08:24,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 154 transitions, 759 flow [2025-02-08 14:08:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2025-02-08 14:08:24,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7596153846153846 [2025-02-08 14:08:24,925 INFO L175 Difference]: Start difference. First operand has 106 places, 90 transitions, 279 flow. Second operand 4 states and 316 transitions. [2025-02-08 14:08:24,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 154 transitions, 759 flow [2025-02-08 14:08:24,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 154 transitions, 753 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:24,940 INFO L231 Difference]: Finished difference. Result has 111 places, 91 transitions, 296 flow [2025-02-08 14:08:24,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=296, PETRI_PLACES=111, PETRI_TRANSITIONS=91} [2025-02-08 14:08:24,941 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 17 predicate places. [2025-02-08 14:08:24,941 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 91 transitions, 296 flow [2025-02-08 14:08:24,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:24,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:24,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:24,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:08:24,942 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:24,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash 100692081, now seen corresponding path program 1 times [2025-02-08 14:08:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:24,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350728113] [2025-02-08 14:08:24,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:24,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:24,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:24,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:24,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:25,012 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 14:08:25,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:25,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350728113] [2025-02-08 14:08:25,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350728113] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:25,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:25,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586312563] [2025-02-08 14:08:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:25,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:25,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:25,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:25,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2025-02-08 14:08:25,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 91 transitions, 296 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 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 14:08:25,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:25,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2025-02-08 14:08:25,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:27,085 INFO L124 PetriNetUnfolderBase]: 24587/39182 cut-off events. [2025-02-08 14:08:27,085 INFO L125 PetriNetUnfolderBase]: For 37446/40743 co-relation queries the response was YES. [2025-02-08 14:08:27,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99783 conditions, 39182 events. 24587/39182 cut-off events. For 37446/40743 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 339633 event pairs, 5844 based on Foata normal form. 3297/39488 useless extension candidates. Maximal degree in co-relation 67761. Up to 19021 conditions per place. [2025-02-08 14:08:27,276 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 109 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2025-02-08 14:08:27,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 151 transitions, 762 flow [2025-02-08 14:08:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:27,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 373 transitions. [2025-02-08 14:08:27,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7173076923076923 [2025-02-08 14:08:27,277 INFO L175 Difference]: Start difference. First operand has 111 places, 91 transitions, 296 flow. Second operand 5 states and 373 transitions. [2025-02-08 14:08:27,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 151 transitions, 762 flow [2025-02-08 14:08:27,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 151 transitions, 759 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:27,399 INFO L231 Difference]: Finished difference. Result has 114 places, 91 transitions, 306 flow [2025-02-08 14:08:27,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=114, PETRI_TRANSITIONS=91} [2025-02-08 14:08:27,400 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 20 predicate places. [2025-02-08 14:08:27,400 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 91 transitions, 306 flow [2025-02-08 14:08:27,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 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 14:08:27,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:27,400 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 14:08:27,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:08:27,401 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:27,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1173512094, now seen corresponding path program 1 times [2025-02-08 14:08:27,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:27,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236702110] [2025-02-08 14:08:27,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:27,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:27,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:08:27,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:08:27,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:27,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:27,497 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 14:08:27,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:27,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236702110] [2025-02-08 14:08:27,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236702110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:27,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:27,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:27,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254450143] [2025-02-08 14:08:27,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:27,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:27,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:27,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:27,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:27,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:27,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 91 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 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 14:08:27,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:27,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:27,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:29,950 INFO L124 PetriNetUnfolderBase]: 24587/38719 cut-off events. [2025-02-08 14:08:29,950 INFO L125 PetriNetUnfolderBase]: For 39298/42595 co-relation queries the response was YES. [2025-02-08 14:08:30,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101638 conditions, 38719 events. 24587/38719 cut-off events. For 39298/42595 co-relation queries the response was YES. Maximal size of possible extension queue 1880. Compared 330408 event pairs, 5844 based on Foata normal form. 3297/39951 useless extension candidates. Maximal degree in co-relation 68915. Up to 11978 conditions per place. [2025-02-08 14:08:30,126 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 136 selfloop transitions, 7 changer transitions 0/181 dead transitions. [2025-02-08 14:08:30,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 181 transitions, 952 flow [2025-02-08 14:08:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 434 transitions. [2025-02-08 14:08:30,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6955128205128205 [2025-02-08 14:08:30,128 INFO L175 Difference]: Start difference. First operand has 114 places, 91 transitions, 306 flow. Second operand 6 states and 434 transitions. [2025-02-08 14:08:30,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 181 transitions, 952 flow [2025-02-08 14:08:30,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 181 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:30,255 INFO L231 Difference]: Finished difference. Result has 117 places, 91 transitions, 324 flow [2025-02-08 14:08:30,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=91} [2025-02-08 14:08:30,256 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places. [2025-02-08 14:08:30,256 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 91 transitions, 324 flow [2025-02-08 14:08:30,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 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 14:08:30,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:30,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:30,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:08:30,256 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:30,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:30,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1100446920, now seen corresponding path program 1 times [2025-02-08 14:08:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:30,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170366871] [2025-02-08 14:08:30,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:30,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:30,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:08:30,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:08:30,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:30,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:30,332 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 14:08:30,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:30,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170366871] [2025-02-08 14:08:30,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170366871] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:30,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:30,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:08:30,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810540107] [2025-02-08 14:08:30,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:30,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:30,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:30,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:30,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:30,369 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:30,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 91 transitions, 324 flow. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 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 14:08:30,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:30,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:30,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:32,921 INFO L124 PetriNetUnfolderBase]: 24124/37039 cut-off events. [2025-02-08 14:08:32,921 INFO L125 PetriNetUnfolderBase]: For 39534/42778 co-relation queries the response was YES. [2025-02-08 14:08:33,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103353 conditions, 37039 events. 24124/37039 cut-off events. For 39534/42778 co-relation queries the response was YES. Maximal size of possible extension queue 1795. Compared 306702 event pairs, 11284 based on Foata normal form. 3707/39601 useless extension candidates. Maximal degree in co-relation 70066. Up to 18356 conditions per place. [2025-02-08 14:08:33,073 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 0 selfloop transitions, 0 changer transitions 212/212 dead transitions. [2025-02-08 14:08:33,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 212 transitions, 1154 flow [2025-02-08 14:08:33,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:33,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:33,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 464 transitions. [2025-02-08 14:08:33,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2025-02-08 14:08:33,075 INFO L175 Difference]: Start difference. First operand has 117 places, 91 transitions, 324 flow. Second operand 6 states and 464 transitions. [2025-02-08 14:08:33,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 212 transitions, 1154 flow [2025-02-08 14:08:33,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 212 transitions, 1141 flow, removed 1 selfloop flow, removed 6 redundant places. [2025-02-08 14:08:33,312 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2025-02-08 14:08:33,313 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2025-02-08 14:08:33,313 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 21 predicate places. [2025-02-08 14:08:33,313 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2025-02-08 14:08:33,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 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 14:08:33,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-02-08 14:08:33,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-02-08 14:08:33,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-02-08 14:08:33,318 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-02-08 14:08:33,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:08:33,319 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:33,323 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:08:33,323 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:08:33,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:08:33 BasicIcfg [2025-02-08 14:08:33,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:08:33,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:08:33,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:08:33,328 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:08:33,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:58" (3/4) ... [2025-02-08 14:08:33,330 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:08:33,336 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:08:33,338 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:08:33,338 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:08:33,344 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2025-02-08 14:08:33,344 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 14:08:33,344 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-02-08 14:08:33,344 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:08:33,425 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:08:33,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:08:33,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:08:33,426 INFO L158 Benchmark]: Toolchain (without parser) took 36364.10ms. Allocated memory was 167.8MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 129.9MB in the beginning and 4.1GB in the end (delta: -4.0GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2025-02-08 14:08:33,428 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:33,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.49ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 117.8MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:33,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.10ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 115.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:33,428 INFO L158 Benchmark]: Boogie Preprocessor took 60.75ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 114.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:33,428 INFO L158 Benchmark]: IcfgBuilder took 889.67ms. Allocated memory is still 167.8MB. Free memory was 114.0MB in the beginning and 61.2MB in the end (delta: 52.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-08 14:08:33,429 INFO L158 Benchmark]: TraceAbstraction took 35005.40ms. Allocated memory was 167.8MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 60.8MB in the beginning and 4.1GB in the end (delta: -4.1GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2025-02-08 14:08:33,429 INFO L158 Benchmark]: Witness Printer took 97.98ms. Allocated memory is still 5.4GB. Free memory was 4.1GB in the beginning and 4.1GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:33,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.49ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 117.8MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.10ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 115.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.75ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 114.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 889.67ms. Allocated memory is still 167.8MB. Free memory was 114.0MB in the beginning and 61.2MB in the end (delta: 52.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 35005.40ms. Allocated memory was 167.8MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 60.8MB in the beginning and 4.1GB in the end (delta: -4.1GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 97.98ms. Allocated memory is still 5.4GB. Free memory was 4.1GB in the beginning and 4.1GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 171 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 34.8s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2188 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1914 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4033 IncrementalHoareTripleChecker+Invalid, 4135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 100 mSDtfsCounter, 4033 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=18, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:08:33,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE