./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-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-exp-term-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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:47,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:47,526 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:47,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:47,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:47,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:47,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:47,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:47,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:47,543 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:47,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:47,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:47,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:47,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:47,543 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:47,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:47,544 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:47,545 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:47,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:47,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:47,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:47,546 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 -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2025-02-08 14:07:47,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:47,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:47,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:47,765 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:47,765 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:47,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2025-02-08 14:07:49,009 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9984e8977/a9840bf7f0af4a8e906e911e415f6637/FLAG05c6f63c5 [2025-02-08 14:07:49,255 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:49,258 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2025-02-08 14:07:49,264 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9984e8977/a9840bf7f0af4a8e906e911e415f6637/FLAG05c6f63c5 [2025-02-08 14:07:49,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9984e8977/a9840bf7f0af4a8e906e911e415f6637 [2025-02-08 14:07:49,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:49,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:49,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:49,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:49,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:49,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c35198b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49, skipping insertion in model container [2025-02-08 14:07:49,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:49,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:49,524 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:49,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:49,560 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:49,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49 WrapperNode [2025-02-08 14:07:49,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:49,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:49,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:49,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:49,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,595 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 213 [2025-02-08 14:07:49,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:49,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:49,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:49,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:49,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,626 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 14:07:49,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,636 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:49,648 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:49,648 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:49,649 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:49,652 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (1/1) ... [2025-02-08 14:07:49,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:49,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:49,679 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 14:07:49,681 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 14:07:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:07:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:07:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:07:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:07:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:07:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:07:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:49,710 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 14:07:49,777 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:49,778 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:49,918 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-7: #t~ite2#1 := #t~ret1#1; [2025-02-08 14:07:49,921 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-8: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 14:07:49,921 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-9: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:49,921 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-10: havoc minus_#t~short25#1, minus_#t~short26#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:49,921 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-11: #t~ret1#1 := minus_#res#1; [2025-02-08 14:07:49,999 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-7: #t~ite6#1 := #t~ret5#1; [2025-02-08 14:07:50,000 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-8: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret5#1 && #t~ret5#1 <= 2147483647; [2025-02-08 14:07:50,000 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:50,000 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-10: havoc minus_#t~short25#1, minus_#t~short26#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:50,000 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: #t~ret5#1 := minus_#res#1; [2025-02-08 14:07:50,044 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-7: #t~ite10#1 := #t~ret9#1; [2025-02-08 14:07:50,044 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-8: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret9#1 && #t~ret9#1 <= 2147483647; [2025-02-08 14:07:50,044 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-9: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:07:50,044 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-10: havoc minus_#t~short25#1, minus_#t~short26#1, minus_~a#1, minus_~b#1; [2025-02-08 14:07:50,044 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-11: #t~ret9#1 := minus_#res#1; [2025-02-08 14:07:50,095 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:50,095 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:50,246 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:50,247 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:50,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:50 BoogieIcfgContainer [2025-02-08 14:07:50,247 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:50,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:50,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:50,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:50,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:49" (1/3) ... [2025-02-08 14:07:50,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671a8271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:50, skipping insertion in model container [2025-02-08 14:07:50,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:49" (2/3) ... [2025-02-08 14:07:50,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671a8271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:50, skipping insertion in model container [2025-02-08 14:07:50,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:50" (3/3) ... [2025-02-08 14:07:50,259 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2025-02-08 14:07:50,272 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:50,273 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-exp-term-subst.wvr.c that has 4 procedures, 84 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-02-08 14:07:50,274 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:50,354 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:07:50,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 95 transitions, 211 flow [2025-02-08 14:07:50,424 INFO L124 PetriNetUnfolderBase]: 12/92 cut-off events. [2025-02-08 14:07:50,427 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:07:50,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 92 events. 12/92 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 357 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2025-02-08 14:07:50,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 95 transitions, 211 flow [2025-02-08 14:07:50,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 90 transitions, 195 flow [2025-02-08 14:07:50,441 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:50,455 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;@2e353e35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:50,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 14:07:50,467 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:50,470 INFO L124 PetriNetUnfolderBase]: 5/33 cut-off events. [2025-02-08 14:07:50,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:07:50,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:50,471 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:50,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:50,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:50,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1052487003, now seen corresponding path program 1 times [2025-02-08 14:07:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:50,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844477163] [2025-02-08 14:07:50,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:50,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:07:50,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:07:50,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:50,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:50,725 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 14:07:50,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:50,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844477163] [2025-02-08 14:07:50,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844477163] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:50,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:50,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458820737] [2025-02-08 14:07:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:50,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:50,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:50,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:50,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:50,796 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 95 [2025-02-08 14:07:50,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 90 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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 14:07:50,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:50,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 95 [2025-02-08 14:07:50,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:51,867 INFO L124 PetriNetUnfolderBase]: 6851/11589 cut-off events. [2025-02-08 14:07:51,867 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2025-02-08 14:07:51,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21030 conditions, 11589 events. 6851/11589 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 90301 event pairs, 1858 based on Foata normal form. 444/9730 useless extension candidates. Maximal degree in co-relation 20185. Up to 5680 conditions per place. [2025-02-08 14:07:51,918 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 64 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2025-02-08 14:07:51,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 113 transitions, 379 flow [2025-02-08 14:07:51,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:51,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2025-02-08 14:07:51,927 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7052631578947368 [2025-02-08 14:07:51,928 INFO L175 Difference]: Start difference. First operand has 88 places, 90 transitions, 195 flow. Second operand 4 states and 268 transitions. [2025-02-08 14:07:51,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 113 transitions, 379 flow [2025-02-08 14:07:51,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 113 transitions, 367 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:51,944 INFO L231 Difference]: Finished difference. Result has 84 places, 88 transitions, 186 flow [2025-02-08 14:07:51,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=84, PETRI_TRANSITIONS=88} [2025-02-08 14:07:51,947 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2025-02-08 14:07:51,948 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 88 transitions, 186 flow [2025-02-08 14:07:51,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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 14:07:51,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:51,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:51,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:51,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:51,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:51,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1732640716, now seen corresponding path program 1 times [2025-02-08 14:07:51,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:51,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037854239] [2025-02-08 14:07:51,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:51,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:51,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:51,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:51,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:51,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:52,048 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 14:07:52,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:52,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037854239] [2025-02-08 14:07:52,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037854239] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:52,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:52,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:52,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997953312] [2025-02-08 14:07:52,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:52,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:52,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:52,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:52,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:52,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 95 [2025-02-08 14:07:52,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 88 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 14:07:52,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:52,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 95 [2025-02-08 14:07:52,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:52,724 INFO L124 PetriNetUnfolderBase]: 5599/10095 cut-off events. [2025-02-08 14:07:52,724 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2025-02-08 14:07:52,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17878 conditions, 10095 events. 5599/10095 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 81828 event pairs, 1818 based on Foata normal form. 0/8520 useless extension candidates. Maximal degree in co-relation 7598. Up to 3984 conditions per place. [2025-02-08 14:07:52,767 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 62 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2025-02-08 14:07:52,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 112 transitions, 365 flow [2025-02-08 14:07:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2025-02-08 14:07:52,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7078947368421052 [2025-02-08 14:07:52,772 INFO L175 Difference]: Start difference. First operand has 84 places, 88 transitions, 186 flow. Second operand 4 states and 269 transitions. [2025-02-08 14:07:52,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 112 transitions, 365 flow [2025-02-08 14:07:52,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 112 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:52,773 INFO L231 Difference]: Finished difference. Result has 84 places, 87 transitions, 185 flow [2025-02-08 14:07:52,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=84, PETRI_TRANSITIONS=87} [2025-02-08 14:07:52,774 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2025-02-08 14:07:52,774 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 185 flow [2025-02-08 14:07:52,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 14:07:52,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:52,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:52,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:07:52,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:52,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash 278417705, now seen corresponding path program 1 times [2025-02-08 14:07:52,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:52,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657241414] [2025-02-08 14:07:52,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:52,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:07:52,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:07:52,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:52,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:52,862 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 14:07:52,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:52,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657241414] [2025-02-08 14:07:52,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657241414] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:52,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:52,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033361120] [2025-02-08 14:07:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:52,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:52,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:52,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:52,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 95 [2025-02-08 14:07:52,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 87 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:52,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:52,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 95 [2025-02-08 14:07:52,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:54,058 INFO L124 PetriNetUnfolderBase]: 11620/18604 cut-off events. [2025-02-08 14:07:54,058 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2025-02-08 14:07:54,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35271 conditions, 18604 events. 11620/18604 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 146970 event pairs, 3987 based on Foata normal form. 460/16036 useless extension candidates. Maximal degree in co-relation 19766. Up to 7457 conditions per place. [2025-02-08 14:07:54,120 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 92 selfloop transitions, 4 changer transitions 0/138 dead transitions. [2025-02-08 14:07:54,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 138 transitions, 491 flow [2025-02-08 14:07:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:54,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2025-02-08 14:07:54,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7657894736842106 [2025-02-08 14:07:54,122 INFO L175 Difference]: Start difference. First operand has 84 places, 87 transitions, 185 flow. Second operand 4 states and 291 transitions. [2025-02-08 14:07:54,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 138 transitions, 491 flow [2025-02-08 14:07:54,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:54,126 INFO L231 Difference]: Finished difference. Result has 87 places, 88 transitions, 208 flow [2025-02-08 14:07:54,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=87, PETRI_TRANSITIONS=88} [2025-02-08 14:07:54,126 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2025-02-08 14:07:54,126 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 88 transitions, 208 flow [2025-02-08 14:07:54,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:54,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:54,127 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:54,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:07:54,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:54,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1378646486, now seen corresponding path program 1 times [2025-02-08 14:07:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:54,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847488769] [2025-02-08 14:07:54,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:54,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:54,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:07:54,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:07:54,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:54,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:54,214 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 14:07:54,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:54,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847488769] [2025-02-08 14:07:54,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847488769] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:54,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:54,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:54,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391415197] [2025-02-08 14:07:54,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:54,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:54,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:54,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:54,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:54,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 95 [2025-02-08 14:07:54,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 88 transitions, 208 flow. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:54,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:54,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 95 [2025-02-08 14:07:54,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:55,147 INFO L124 PetriNetUnfolderBase]: 10776/17277 cut-off events. [2025-02-08 14:07:55,147 INFO L125 PetriNetUnfolderBase]: For 2362/2920 co-relation queries the response was YES. [2025-02-08 14:07:55,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34548 conditions, 17277 events. 10776/17277 cut-off events. For 2362/2920 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 135607 event pairs, 2409 based on Foata normal form. 281/15238 useless extension candidates. Maximal degree in co-relation 20629. Up to 6972 conditions per place. [2025-02-08 14:07:55,204 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 93 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2025-02-08 14:07:55,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 140 transitions, 536 flow [2025-02-08 14:07:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 340 transitions. [2025-02-08 14:07:55,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7157894736842105 [2025-02-08 14:07:55,206 INFO L175 Difference]: Start difference. First operand has 87 places, 88 transitions, 208 flow. Second operand 5 states and 340 transitions. [2025-02-08 14:07:55,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 140 transitions, 536 flow [2025-02-08 14:07:55,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 140 transitions, 536 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:55,209 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 221 flow [2025-02-08 14:07:55,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2025-02-08 14:07:55,210 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2025-02-08 14:07:55,210 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 221 flow [2025-02-08 14:07:55,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:55,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:55,210 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:55,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:07:55,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:55,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:55,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1378647479, now seen corresponding path program 1 times [2025-02-08 14:07:55,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:55,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754920027] [2025-02-08 14:07:55,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:55,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:55,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:07:55,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:07:55,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:55,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:55,251 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 14:07:55,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754920027] [2025-02-08 14:07:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754920027] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:55,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:55,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:55,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91624433] [2025-02-08 14:07:55,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:55,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:55,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:55,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:55,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:55,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 95 [2025-02-08 14:07:55,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 14:07:55,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:55,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 95 [2025-02-08 14:07:55,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:56,360 INFO L124 PetriNetUnfolderBase]: 12281/21514 cut-off events. [2025-02-08 14:07:56,360 INFO L125 PetriNetUnfolderBase]: For 3792/4427 co-relation queries the response was YES. [2025-02-08 14:07:56,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42923 conditions, 21514 events. 12281/21514 cut-off events. For 3792/4427 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 189714 event pairs, 5593 based on Foata normal form. 321/19319 useless extension candidates. Maximal degree in co-relation 25446. Up to 9642 conditions per place. [2025-02-08 14:07:56,470 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 95 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2025-02-08 14:07:56,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 143 transitions, 559 flow [2025-02-08 14:07:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 289 transitions. [2025-02-08 14:07:56,472 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7605263157894737 [2025-02-08 14:07:56,472 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 221 flow. Second operand 4 states and 289 transitions. [2025-02-08 14:07:56,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 143 transitions, 559 flow [2025-02-08 14:07:56,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 143 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:56,478 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 237 flow [2025-02-08 14:07:56,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2025-02-08 14:07:56,478 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2025-02-08 14:07:56,478 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 237 flow [2025-02-08 14:07:56,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 14:07:56,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:56,479 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:56,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:07:56,479 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:56,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:56,480 INFO L85 PathProgramCache]: Analyzing trace with hash 41014849, now seen corresponding path program 1 times [2025-02-08 14:07:56,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:56,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591927514] [2025-02-08 14:07:56,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:56,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:56,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:07:56,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:07:56,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:56,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:56,518 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 14:07:56,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:56,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591927514] [2025-02-08 14:07:56,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591927514] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:56,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:56,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:56,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038745989] [2025-02-08 14:07:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:56,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:56,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:56,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:56,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 95 [2025-02-08 14:07:56,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 14:07:56,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:56,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 95 [2025-02-08 14:07:56,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:57,608 INFO L124 PetriNetUnfolderBase]: 11146/20428 cut-off events. [2025-02-08 14:07:57,608 INFO L125 PetriNetUnfolderBase]: For 6325/6831 co-relation queries the response was YES. [2025-02-08 14:07:57,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42377 conditions, 20428 events. 11146/20428 cut-off events. For 6325/6831 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 185953 event pairs, 2409 based on Foata normal form. 302/18557 useless extension candidates. Maximal degree in co-relation 28852. Up to 10404 conditions per place. [2025-02-08 14:07:57,742 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 67 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2025-02-08 14:07:57,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 114 transitions, 449 flow [2025-02-08 14:07:57,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2025-02-08 14:07:57,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7078947368421052 [2025-02-08 14:07:57,747 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 237 flow. Second operand 4 states and 269 transitions. [2025-02-08 14:07:57,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 114 transitions, 449 flow [2025-02-08 14:07:57,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 114 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:57,815 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 236 flow [2025-02-08 14:07:57,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2025-02-08 14:07:57,815 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2025-02-08 14:07:57,815 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 236 flow [2025-02-08 14:07:57,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 14:07:57,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:57,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:57,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:07:57,816 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:57,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash -211631326, now seen corresponding path program 1 times [2025-02-08 14:07:57,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:57,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620074877] [2025-02-08 14:07:57,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:57,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:57,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:07:57,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:07:57,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:57,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:57,918 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 14:07:57,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:57,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620074877] [2025-02-08 14:07:57,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620074877] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:57,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:57,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:57,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006054758] [2025-02-08 14:07:57,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:57,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:57,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:57,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:57,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:07:57,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 95 [2025-02-08 14:07:57,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 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 14:07:57,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:57,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 95 [2025-02-08 14:07:57,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:58,959 INFO L124 PetriNetUnfolderBase]: 14666/23123 cut-off events. [2025-02-08 14:07:58,959 INFO L125 PetriNetUnfolderBase]: For 7009/7806 co-relation queries the response was YES. [2025-02-08 14:07:59,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50571 conditions, 23123 events. 14666/23123 cut-off events. For 7009/7806 co-relation queries the response was YES. Maximal size of possible extension queue 1157. Compared 184271 event pairs, 2390 based on Foata normal form. 410/21638 useless extension candidates. Maximal degree in co-relation 30551. Up to 7750 conditions per place. [2025-02-08 14:07:59,073 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 117 selfloop transitions, 7 changer transitions 0/166 dead transitions. [2025-02-08 14:07:59,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 166 transitions, 691 flow [2025-02-08 14:07:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:07:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:07:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 395 transitions. [2025-02-08 14:07:59,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6929824561403509 [2025-02-08 14:07:59,078 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 236 flow. Second operand 6 states and 395 transitions. [2025-02-08 14:07:59,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 166 transitions, 691 flow [2025-02-08 14:07:59,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 166 transitions, 685 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:59,121 INFO L231 Difference]: Finished difference. Result has 98 places, 88 transitions, 254 flow [2025-02-08 14:07:59,121 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=98, PETRI_TRANSITIONS=88} [2025-02-08 14:07:59,121 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2025-02-08 14:07:59,122 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 88 transitions, 254 flow [2025-02-08 14:07:59,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 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 14:07:59,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:59,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:59,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:07:59,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:07:59,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1271430157, now seen corresponding path program 1 times [2025-02-08 14:07:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996446096] [2025-02-08 14:07:59,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:59,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:07:59,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:07:59,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:59,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:59,179 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 14:07:59,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:59,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996446096] [2025-02-08 14:07:59,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996446096] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:59,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:59,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:59,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417046187] [2025-02-08 14:07:59,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:59,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:59,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:59,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:59,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:59,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 95 [2025-02-08 14:07:59,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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 14:07:59,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:59,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 95 [2025-02-08 14:07:59,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:00,011 INFO L124 PetriNetUnfolderBase]: 11167/20089 cut-off events. [2025-02-08 14:08:00,012 INFO L125 PetriNetUnfolderBase]: For 11486/12682 co-relation queries the response was YES. [2025-02-08 14:08:00,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44425 conditions, 20089 events. 11167/20089 cut-off events. For 11486/12682 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 178993 event pairs, 2410 based on Foata normal form. 1084/19085 useless extension candidates. Maximal degree in co-relation 30147. Up to 10700 conditions per place. [2025-02-08 14:08:00,115 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 70 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2025-02-08 14:08:00,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 114 transitions, 483 flow [2025-02-08 14:08:00,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:00,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:00,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2025-02-08 14:08:00,116 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6973684210526315 [2025-02-08 14:08:00,116 INFO L175 Difference]: Start difference. First operand has 98 places, 88 transitions, 254 flow. Second operand 4 states and 265 transitions. [2025-02-08 14:08:00,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 114 transitions, 483 flow [2025-02-08 14:08:00,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 114 transitions, 473 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:00,167 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 248 flow [2025-02-08 14:08:00,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2025-02-08 14:08:00,168 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2025-02-08 14:08:00,168 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 248 flow [2025-02-08 14:08:00,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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 14:08:00,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:00,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:00,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:08:00,168 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:00,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:00,169 INFO L85 PathProgramCache]: Analyzing trace with hash 300656005, now seen corresponding path program 1 times [2025-02-08 14:08:00,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:00,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076284906] [2025-02-08 14:08:00,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:00,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:00,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:00,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:00,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:00,202 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 14:08:00,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:00,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076284906] [2025-02-08 14:08:00,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076284906] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:00,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:00,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175389595] [2025-02-08 14:08:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:00,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:00,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:00,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:00,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:00,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 95 [2025-02-08 14:08:00,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 87 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 14:08:00,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:00,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 95 [2025-02-08 14:08:00,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:01,183 INFO L124 PetriNetUnfolderBase]: 11087/19962 cut-off events. [2025-02-08 14:08:01,184 INFO L125 PetriNetUnfolderBase]: For 8413/9801 co-relation queries the response was YES. [2025-02-08 14:08:01,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43109 conditions, 19962 events. 11087/19962 cut-off events. For 8413/9801 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 179649 event pairs, 3554 based on Foata normal form. 1738/18724 useless extension candidates. Maximal degree in co-relation 29459. Up to 8522 conditions per place. [2025-02-08 14:08:01,297 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 70 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2025-02-08 14:08:01,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 112 transitions, 487 flow [2025-02-08 14:08:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2025-02-08 14:08:01,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-02-08 14:08:01,299 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 248 flow. Second operand 4 states and 266 transitions. [2025-02-08 14:08:01,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 112 transitions, 487 flow [2025-02-08 14:08:01,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 112 transitions, 483 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:01,310 INFO L231 Difference]: Finished difference. Result has 96 places, 85 transitions, 245 flow [2025-02-08 14:08:01,310 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=96, PETRI_TRANSITIONS=85} [2025-02-08 14:08:01,311 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2025-02-08 14:08:01,311 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 85 transitions, 245 flow [2025-02-08 14:08:01,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 14:08:01,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:01,311 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:01,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:08:01,311 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:01,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1346914307, now seen corresponding path program 1 times [2025-02-08 14:08:01,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:01,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229333851] [2025-02-08 14:08:01,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:01,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:01,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:01,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:01,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:01,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:01,347 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 14:08:01,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:01,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229333851] [2025-02-08 14:08:01,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229333851] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:01,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:01,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:01,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444926257] [2025-02-08 14:08:01,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:01,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:01,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:01,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:01,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:01,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 95 [2025-02-08 14:08:01,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 85 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:01,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:01,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 95 [2025-02-08 14:08:01,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:02,789 INFO L124 PetriNetUnfolderBase]: 14952/24050 cut-off events. [2025-02-08 14:08:02,789 INFO L125 PetriNetUnfolderBase]: For 8600/9264 co-relation queries the response was YES. [2025-02-08 14:08:02,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54805 conditions, 24050 events. 14952/24050 cut-off events. For 8600/9264 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 198148 event pairs, 6094 based on Foata normal form. 952/23156 useless extension candidates. Maximal degree in co-relation 42131. Up to 10484 conditions per place. [2025-02-08 14:08:02,947 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 94 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2025-02-08 14:08:02,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 137 transitions, 578 flow [2025-02-08 14:08:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 286 transitions. [2025-02-08 14:08:02,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7526315789473684 [2025-02-08 14:08:02,948 INFO L175 Difference]: Start difference. First operand has 96 places, 85 transitions, 245 flow. Second operand 4 states and 286 transitions. [2025-02-08 14:08:02,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 137 transitions, 578 flow [2025-02-08 14:08:02,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 137 transitions, 571 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:02,968 INFO L231 Difference]: Finished difference. Result has 95 places, 84 transitions, 241 flow [2025-02-08 14:08:02,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=241, PETRI_PLACES=95, PETRI_TRANSITIONS=84} [2025-02-08 14:08:02,970 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2025-02-08 14:08:02,970 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 84 transitions, 241 flow [2025-02-08 14:08:02,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:02,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:02,971 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:02,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:08:02,971 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:02,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash 759628803, now seen corresponding path program 1 times [2025-02-08 14:08:02,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882653460] [2025-02-08 14:08:02,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:02,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:02,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:02,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:02,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:02,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:03,036 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 14:08:03,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:03,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882653460] [2025-02-08 14:08:03,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882653460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:03,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:03,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:03,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595713340] [2025-02-08 14:08:03,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:03,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:03,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:03,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:03,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:03,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 95 [2025-02-08 14:08:03,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 84 transitions, 241 flow. Second operand has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 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 14:08:03,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:03,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 95 [2025-02-08 14:08:03,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:04,183 INFO L124 PetriNetUnfolderBase]: 16985/26683 cut-off events. [2025-02-08 14:08:04,183 INFO L125 PetriNetUnfolderBase]: For 11832/12926 co-relation queries the response was YES. [2025-02-08 14:08:04,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63367 conditions, 26683 events. 16985/26683 cut-off events. For 11832/12926 co-relation queries the response was YES. Maximal size of possible extension queue 1270. Compared 213928 event pairs, 2660 based on Foata normal form. 1094/25246 useless extension candidates. Maximal degree in co-relation 45650. Up to 14134 conditions per place. [2025-02-08 14:08:04,352 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 97 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2025-02-08 14:08:04,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 137 transitions, 623 flow [2025-02-08 14:08:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 338 transitions. [2025-02-08 14:08:04,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7115789473684211 [2025-02-08 14:08:04,354 INFO L175 Difference]: Start difference. First operand has 95 places, 84 transitions, 241 flow. Second operand 5 states and 338 transitions. [2025-02-08 14:08:04,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 137 transitions, 623 flow [2025-02-08 14:08:04,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 137 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:04,425 INFO L231 Difference]: Finished difference. Result has 97 places, 83 transitions, 244 flow [2025-02-08 14:08:04,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=97, PETRI_TRANSITIONS=83} [2025-02-08 14:08:04,427 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2025-02-08 14:08:04,427 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 83 transitions, 244 flow [2025-02-08 14:08:04,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.8) internal successors, (254), 5 states have internal predecessors, (254), 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 14:08:04,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:04,427 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:04,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:08:04,427 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:04,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:04,427 INFO L85 PathProgramCache]: Analyzing trace with hash 759629796, now seen corresponding path program 1 times [2025-02-08 14:08:04,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:04,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611556042] [2025-02-08 14:08:04,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:04,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:04,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:04,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:04,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:04,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:04,463 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 14:08:04,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:04,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611556042] [2025-02-08 14:08:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611556042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:04,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:04,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:04,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004867744] [2025-02-08 14:08:04,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:04,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:04,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:04,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:04,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:04,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 95 [2025-02-08 14:08:04,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 83 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 14:08:04,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:04,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 95 [2025-02-08 14:08:04,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:05,539 INFO L124 PetriNetUnfolderBase]: 13849/23657 cut-off events. [2025-02-08 14:08:05,539 INFO L125 PetriNetUnfolderBase]: For 11064/11936 co-relation queries the response was YES. [2025-02-08 14:08:05,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54577 conditions, 23657 events. 13849/23657 cut-off events. For 11064/11936 co-relation queries the response was YES. Maximal size of possible extension queue 1153. Compared 205875 event pairs, 6443 based on Foata normal form. 1212/22874 useless extension candidates. Maximal degree in co-relation 39196. Up to 11017 conditions per place. [2025-02-08 14:08:05,640 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 99 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2025-02-08 14:08:05,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 138 transitions, 622 flow [2025-02-08 14:08:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:05,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 286 transitions. [2025-02-08 14:08:05,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7526315789473684 [2025-02-08 14:08:05,641 INFO L175 Difference]: Start difference. First operand has 97 places, 83 transitions, 244 flow. Second operand 4 states and 286 transitions. [2025-02-08 14:08:05,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 138 transitions, 622 flow [2025-02-08 14:08:05,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 138 transitions, 617 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:05,680 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 239 flow [2025-02-08 14:08:05,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2025-02-08 14:08:05,680 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2025-02-08 14:08:05,681 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 239 flow [2025-02-08 14:08:05,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 14:08:05,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:05,681 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:05,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:08:05,681 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:05,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash 730402176, now seen corresponding path program 1 times [2025-02-08 14:08:05,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:05,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871097994] [2025-02-08 14:08:05,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:05,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:05,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:05,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:05,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:05,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:05,710 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 14:08:05,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:05,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871097994] [2025-02-08 14:08:05,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871097994] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:05,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:05,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:05,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931963222] [2025-02-08 14:08:05,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:05,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:05,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:05,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:05,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 95 [2025-02-08 14:08:05,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 239 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 14:08:05,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:05,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 95 [2025-02-08 14:08:05,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:06,496 INFO L124 PetriNetUnfolderBase]: 10228/19720 cut-off events. [2025-02-08 14:08:06,496 INFO L125 PetriNetUnfolderBase]: For 7374/8234 co-relation queries the response was YES. [2025-02-08 14:08:06,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42335 conditions, 19720 events. 10228/19720 cut-off events. For 7374/8234 co-relation queries the response was YES. Maximal size of possible extension queue 991. Compared 188226 event pairs, 4109 based on Foata normal form. 860/18172 useless extension candidates. Maximal degree in co-relation 30374. Up to 7112 conditions per place. [2025-02-08 14:08:06,605 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 68 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2025-02-08 14:08:06,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 108 transitions, 482 flow [2025-02-08 14:08:06,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2025-02-08 14:08:06,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7026315789473684 [2025-02-08 14:08:06,607 INFO L175 Difference]: Start difference. First operand has 97 places, 82 transitions, 239 flow. Second operand 4 states and 267 transitions. [2025-02-08 14:08:06,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 108 transitions, 482 flow [2025-02-08 14:08:06,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 108 transitions, 473 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:06,616 INFO L231 Difference]: Finished difference. Result has 97 places, 81 transitions, 236 flow [2025-02-08 14:08:06,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=97, PETRI_TRANSITIONS=81} [2025-02-08 14:08:06,617 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2025-02-08 14:08:06,617 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 81 transitions, 236 flow [2025-02-08 14:08:06,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 14:08:06,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:06,617 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:06,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:08:06,617 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:06,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:06,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2073657008, now seen corresponding path program 1 times [2025-02-08 14:08:06,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:06,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717153045] [2025-02-08 14:08:06,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:06,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:06,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:06,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:06,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:06,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:06,662 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 14:08:06,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717153045] [2025-02-08 14:08:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717153045] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:06,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:06,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:06,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368069845] [2025-02-08 14:08:06,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:06,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:06,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:06,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:06,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:06,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 95 [2025-02-08 14:08:06,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 81 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 47.5) internal successors, (285), 6 states have internal predecessors, (285), 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 14:08:06,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:06,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 95 [2025-02-08 14:08:06,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:07,874 INFO L124 PetriNetUnfolderBase]: 16645/25913 cut-off events. [2025-02-08 14:08:07,875 INFO L125 PetriNetUnfolderBase]: For 10402/11516 co-relation queries the response was YES. [2025-02-08 14:08:07,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62606 conditions, 25913 events. 16645/25913 cut-off events. For 10402/11516 co-relation queries the response was YES. Maximal size of possible extension queue 1289. Compared 205034 event pairs, 2640 based on Foata normal form. 1114/25665 useless extension candidates. Maximal degree in co-relation 44900. Up to 9118 conditions per place. [2025-02-08 14:08:08,028 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 121 selfloop transitions, 7 changer transitions 0/162 dead transitions. [2025-02-08 14:08:08,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 162 transitions, 762 flow [2025-02-08 14:08:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 392 transitions. [2025-02-08 14:08:08,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6877192982456141 [2025-02-08 14:08:08,030 INFO L175 Difference]: Start difference. First operand has 97 places, 81 transitions, 236 flow. Second operand 6 states and 392 transitions. [2025-02-08 14:08:08,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 162 transitions, 762 flow [2025-02-08 14:08:08,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 162 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:08,080 INFO L231 Difference]: Finished difference. Result has 100 places, 81 transitions, 254 flow [2025-02-08 14:08:08,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=100, PETRI_TRANSITIONS=81} [2025-02-08 14:08:08,080 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2025-02-08 14:08:08,081 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 81 transitions, 254 flow [2025-02-08 14:08:08,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.5) internal successors, (285), 6 states have internal predecessors, (285), 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 14:08:08,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:08,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:08,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:08:08,081 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:08,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 777547338, now seen corresponding path program 1 times [2025-02-08 14:08:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:08,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311198624] [2025-02-08 14:08:08,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:08,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:08,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:08:08,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:08:08,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:08,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:08,131 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 14:08:08,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311198624] [2025-02-08 14:08:08,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311198624] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:08,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:08,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:08:08,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825670630] [2025-02-08 14:08:08,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:08,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:08,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:08,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:08,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:08,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 95 [2025-02-08 14:08:08,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 81 transitions, 254 flow. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 14:08:08,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:08,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 95 [2025-02-08 14:08:08,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:09,448 INFO L124 PetriNetUnfolderBase]: 16571/25035 cut-off events. [2025-02-08 14:08:09,449 INFO L125 PetriNetUnfolderBase]: For 13225/14295 co-relation queries the response was YES. [2025-02-08 14:08:09,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65073 conditions, 25035 events. 16571/25035 cut-off events. For 13225/14295 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 189502 event pairs, 6423 based on Foata normal form. 1410/24871 useless extension candidates. Maximal degree in co-relation 46700. Up to 11357 conditions per place. [2025-02-08 14:08:09,567 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 152 selfloop transitions, 7 changer transitions 0/191 dead transitions. [2025-02-08 14:08:09,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 191 transitions, 932 flow [2025-02-08 14:08:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 421 transitions. [2025-02-08 14:08:09,569 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7385964912280701 [2025-02-08 14:08:09,569 INFO L175 Difference]: Start difference. First operand has 100 places, 81 transitions, 254 flow. Second operand 6 states and 421 transitions. [2025-02-08 14:08:09,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 191 transitions, 932 flow [2025-02-08 14:08:09,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 191 transitions, 921 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-02-08 14:08:09,717 INFO L231 Difference]: Finished difference. Result has 101 places, 82 transitions, 269 flow [2025-02-08 14:08:09,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=101, PETRI_TRANSITIONS=82} [2025-02-08 14:08:09,718 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2025-02-08 14:08:09,718 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 82 transitions, 269 flow [2025-02-08 14:08:09,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 14:08:09,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:09,718 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:09,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:08:09,719 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:09,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1835887330, now seen corresponding path program 1 times [2025-02-08 14:08:09,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:09,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371447820] [2025-02-08 14:08:09,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:09,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:09,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:08:09,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:08:09,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:09,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:09,772 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 14:08:09,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:09,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371447820] [2025-02-08 14:08:09,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371447820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:09,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:09,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:09,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469402384] [2025-02-08 14:08:09,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:09,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:09,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:09,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:09,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 95 [2025-02-08 14:08:09,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 82 transitions, 269 flow. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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 14:08:09,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:09,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 95 [2025-02-08 14:08:09,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:10,928 INFO L124 PetriNetUnfolderBase]: 15544/24425 cut-off events. [2025-02-08 14:08:10,928 INFO L125 PetriNetUnfolderBase]: For 24929/27027 co-relation queries the response was YES. [2025-02-08 14:08:11,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63243 conditions, 24425 events. 15544/24425 cut-off events. For 24929/27027 co-relation queries the response was YES. Maximal size of possible extension queue 1159. Compared 193835 event pairs, 4129 based on Foata normal form. 2098/24278 useless extension candidates. Maximal degree in co-relation 45260. Up to 9586 conditions per place. [2025-02-08 14:08:11,095 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 104 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2025-02-08 14:08:11,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 140 transitions, 739 flow [2025-02-08 14:08:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 336 transitions. [2025-02-08 14:08:11,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7073684210526315 [2025-02-08 14:08:11,097 INFO L175 Difference]: Start difference. First operand has 101 places, 82 transitions, 269 flow. Second operand 5 states and 336 transitions. [2025-02-08 14:08:11,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 140 transitions, 739 flow [2025-02-08 14:08:11,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 140 transitions, 713 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:11,119 INFO L231 Difference]: Finished difference. Result has 103 places, 82 transitions, 272 flow [2025-02-08 14:08:11,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=103, PETRI_TRANSITIONS=82} [2025-02-08 14:08:11,119 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 15 predicate places. [2025-02-08 14:08:11,120 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 82 transitions, 272 flow [2025-02-08 14:08:11,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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 14:08:11,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:11,120 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:11,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:08:11,120 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:11,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1835888323, now seen corresponding path program 1 times [2025-02-08 14:08:11,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:11,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960210845] [2025-02-08 14:08:11,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:11,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:11,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:08:11,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:08:11,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:11,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:11,153 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 14:08:11,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:11,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960210845] [2025-02-08 14:08:11,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960210845] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:11,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:11,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131444409] [2025-02-08 14:08:11,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:11,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:11,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:11,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:11,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:11,167 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 95 [2025-02-08 14:08:11,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 82 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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 14:08:11,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:11,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 95 [2025-02-08 14:08:11,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:13,111 INFO L124 PetriNetUnfolderBase]: 17662/29932 cut-off events. [2025-02-08 14:08:13,111 INFO L125 PetriNetUnfolderBase]: For 23163/25552 co-relation queries the response was YES. [2025-02-08 14:08:13,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74494 conditions, 29932 events. 17662/29932 cut-off events. For 23163/25552 co-relation queries the response was YES. Maximal size of possible extension queue 1393. Compared 266565 event pairs, 8854 based on Foata normal form. 2389/30272 useless extension candidates. Maximal degree in co-relation 53300. Up to 14458 conditions per place. [2025-02-08 14:08:13,328 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 106 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2025-02-08 14:08:13,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 143 transitions, 736 flow [2025-02-08 14:08:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2025-02-08 14:08:13,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-02-08 14:08:13,334 INFO L175 Difference]: Start difference. First operand has 103 places, 82 transitions, 272 flow. Second operand 4 states and 285 transitions. [2025-02-08 14:08:13,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 143 transitions, 736 flow [2025-02-08 14:08:13,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 143 transitions, 733 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:13,376 INFO L231 Difference]: Finished difference. Result has 106 places, 83 transitions, 288 flow [2025-02-08 14:08:13,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=106, PETRI_TRANSITIONS=83} [2025-02-08 14:08:13,377 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2025-02-08 14:08:13,380 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 288 flow [2025-02-08 14:08:13,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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 14:08:13,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:13,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:13,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:08:13,381 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:13,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:13,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1077933004, now seen corresponding path program 1 times [2025-02-08 14:08:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:13,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474056978] [2025-02-08 14:08:13,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:13,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:13,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:13,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:13,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:13,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:13,498 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 14:08:13,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474056978] [2025-02-08 14:08:13,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474056978] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:13,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:13,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844436825] [2025-02-08 14:08:13,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:13,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:13,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:13,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:13,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:13,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 95 [2025-02-08 14:08:13,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 83 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 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 14:08:13,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:13,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 95 [2025-02-08 14:08:13,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:15,265 INFO L124 PetriNetUnfolderBase]: 20839/32548 cut-off events. [2025-02-08 14:08:15,265 INFO L125 PetriNetUnfolderBase]: For 30415/33368 co-relation queries the response was YES. [2025-02-08 14:08:15,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87548 conditions, 32548 events. 20839/32548 cut-off events. For 30415/33368 co-relation queries the response was YES. Maximal size of possible extension queue 1531. Compared 265424 event pairs, 4129 based on Foata normal form. 2953/33879 useless extension candidates. Maximal degree in co-relation 62538. Up to 10645 conditions per place. [2025-02-08 14:08:15,417 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 131 selfloop transitions, 7 changer transitions 0/170 dead transitions. [2025-02-08 14:08:15,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 170 transitions, 921 flow [2025-02-08 14:08:15,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 389 transitions. [2025-02-08 14:08:15,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6824561403508772 [2025-02-08 14:08:15,420 INFO L175 Difference]: Start difference. First operand has 106 places, 83 transitions, 288 flow. Second operand 6 states and 389 transitions. [2025-02-08 14:08:15,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 170 transitions, 921 flow [2025-02-08 14:08:15,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 170 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:15,514 INFO L231 Difference]: Finished difference. Result has 110 places, 83 transitions, 306 flow [2025-02-08 14:08:15,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=110, PETRI_TRANSITIONS=83} [2025-02-08 14:08:15,515 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 22 predicate places. [2025-02-08 14:08:15,515 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 83 transitions, 306 flow [2025-02-08 14:08:15,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 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 14:08:15,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:15,515 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 14:08:15,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:08:15,516 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:15,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -25125687, now seen corresponding path program 1 times [2025-02-08 14:08:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083124389] [2025-02-08 14:08:15,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:15,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:08:15,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:08:15,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:15,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:15,549 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 14:08:15,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:15,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083124389] [2025-02-08 14:08:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083124389] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:15,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:08:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117420823] [2025-02-08 14:08:15,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:15,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:15,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:15,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:15,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 95 [2025-02-08 14:08:15,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 83 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:15,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:15,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 95 [2025-02-08 14:08:15,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:17,222 INFO L124 PetriNetUnfolderBase]: 20435/31092 cut-off events. [2025-02-08 14:08:17,223 INFO L125 PetriNetUnfolderBase]: For 31021/33923 co-relation queries the response was YES. [2025-02-08 14:08:17,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88672 conditions, 31092 events. 20435/31092 cut-off events. For 31021/33923 co-relation queries the response was YES. Maximal size of possible extension queue 1480. Compared 245622 event pairs, 8854 based on Foata normal form. 3306/33561 useless extension candidates. Maximal degree in co-relation 63380. Up to 14862 conditions per place. [2025-02-08 14:08:17,376 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 0 selfloop transitions, 0 changer transitions 200/200 dead transitions. [2025-02-08 14:08:17,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 200 transitions, 1120 flow [2025-02-08 14:08:17,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2025-02-08 14:08:17,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7315789473684211 [2025-02-08 14:08:17,377 INFO L175 Difference]: Start difference. First operand has 110 places, 83 transitions, 306 flow. Second operand 6 states and 417 transitions. [2025-02-08 14:08:17,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 200 transitions, 1120 flow [2025-02-08 14:08:17,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 200 transitions, 1107 flow, removed 1 selfloop flow, removed 6 redundant places. [2025-02-08 14:08:17,616 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2025-02-08 14:08:17,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2025-02-08 14:08:17,617 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 20 predicate places. [2025-02-08 14:08:17,617 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2025-02-08 14:08:17,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:17,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-02-08 14:08:17,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-02-08 14:08:17,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-02-08 14:08:17,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-02-08 14:08:17,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-02-08 14:08:17,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-02-08 14:08:17,622 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-02-08 14:08:17,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:08:17,622 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 14:08:17,625 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:08:17,626 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:08:17,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:08:17 BasicIcfg [2025-02-08 14:08:17,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:08:17,632 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:08:17,632 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:08:17,632 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:08:17,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:50" (3/4) ... [2025-02-08 14:08:17,634 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:08:17,635 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:08:17,635 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:08:17,639 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:08:17,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2025-02-08 14:08:17,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-02-08 14:08:17,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-02-08 14:08:17,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:08:17,717 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:08:17,718 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:08:17,718 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:08:17,719 INFO L158 Benchmark]: Toolchain (without parser) took 28420.72ms. Allocated memory was 142.6MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 107.5MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2025-02-08 14:08:17,719 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:17,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.01ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 95.5MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:17,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:17,720 INFO L158 Benchmark]: Boogie Preprocessor took 46.57ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 91.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:17,720 INFO L158 Benchmark]: IcfgBuilder took 602.80ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 45.1MB in the end (delta: 46.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 14:08:17,720 INFO L158 Benchmark]: TraceAbstraction took 27383.44ms. Allocated memory was 142.6MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 44.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2025-02-08 14:08:17,721 INFO L158 Benchmark]: Witness Printer took 85.33ms. Allocated memory is still 3.4GB. Free memory was 1.5GB in the beginning and 1.4GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:17,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.01ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 95.5MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.90ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.57ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 91.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 602.80ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 45.1MB in the end (delta: 46.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 27383.44ms. Allocated memory was 142.6MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 44.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 85.33ms. Allocated memory is still 3.4GB. Free memory was 1.5GB in the beginning and 1.4GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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, 159 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: 27.2s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2159 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1849 mSDsluCounter, 236 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4022 IncrementalHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 103 mSDtfsCounter, 4022 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, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 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 14:08:17,736 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