./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-file-item-trans.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 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:08:00,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:08:00,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:08:00,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:08:00,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:08:00,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:08:00,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:08:00,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:08:00,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:08:00,935 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:08:00,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:08:00,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:08:00,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:08:00,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:08:00,938 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:08:00,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:08:00,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:08:00,938 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:08:00,939 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:08:00,940 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:00,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:08:00,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:08:00,940 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 -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2025-02-08 14:08:01,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:08:01,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:08:01,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:08:01,205 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:08:01,205 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:08:01,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2025-02-08 14:08:01,707 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb6bcd163/03de1dd180d24c11ac84e79811e0e28e/FLAG04bd9a17a [2025-02-08 14:08:03,294 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:08:03,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2025-02-08 14:08:03,299 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb6bcd163/03de1dd180d24c11ac84e79811e0e28e/FLAG04bd9a17a [2025-02-08 14:08:03,656 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb6bcd163/03de1dd180d24c11ac84e79811e0e28e [2025-02-08 14:08:03,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:08:03,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:08:03,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:03,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:08:03,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:08:03,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c881f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03, skipping insertion in model container [2025-02-08 14:08:03,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:08:03,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:03,844 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:08:03,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:08:03,880 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:08:03,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03 WrapperNode [2025-02-08 14:08:03,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:08:03,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:03,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:08:03,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:08:03,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,919 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 236 [2025-02-08 14:08:03,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:08:03,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:08:03,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:08:03,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:08:03,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,948 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 14:08:03,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,956 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:08:03,960 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:08:03,960 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:08:03,960 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:08:03,961 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (1/1) ... [2025-02-08 14:08:03,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:08:03,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:08:04,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:08:04,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:08:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:08:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:08:04,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:08:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:08:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:08:04,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:08:04,060 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:08:04,158 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:08:04,160 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:08:04,268 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-9: #t~ite2#1 := #t~ret1#1; [2025-02-08 14:08:04,268 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 14:08:04,268 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:04,268 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-12: havoc minus_#t~short31#1, minus_#t~short32#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:04,268 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-13: #t~ret1#1 := minus_#res#1; [2025-02-08 14:08:04,326 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: #t~ite7#1 := #t~ret6#1; [2025-02-08 14:08:04,326 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret6#1 && #t~ret6#1 <= 2147483647; [2025-02-08 14:08:04,326 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:04,326 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-12: havoc minus_#t~short31#1, minus_#t~short32#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:04,326 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-13: #t~ret6#1 := minus_#res#1; [2025-02-08 14:08:04,373 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-9: #t~ite12#1 := #t~ret11#1; [2025-02-08 14:08:04,373 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret11#1 && #t~ret11#1 <= 2147483647; [2025-02-08 14:08:04,373 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:08:04,373 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-12: havoc minus_#t~short31#1, minus_#t~short32#1, minus_~a#1, minus_~b#1; [2025-02-08 14:08:04,373 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-13: #t~ret11#1 := minus_#res#1; [2025-02-08 14:08:04,443 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:08:04,443 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:08:04,618 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:08:04,618 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:08:04,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:04 BoogieIcfgContainer [2025-02-08 14:08:04,618 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:08:04,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:08:04,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:08:04,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:08:04,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:08:03" (1/3) ... [2025-02-08 14:08:04,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aae308d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:04, skipping insertion in model container [2025-02-08 14:08:04,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:08:03" (2/3) ... [2025-02-08 14:08:04,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aae308d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:08:04, skipping insertion in model container [2025-02-08 14:08:04,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:04" (3/3) ... [2025-02-08 14:08:04,648 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2025-02-08 14:08:04,661 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:08:04,662 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-trans.wvr.c that has 4 procedures, 90 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-02-08 14:08:04,663 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:08:04,751 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:08:04,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 104 transitions, 229 flow [2025-02-08 14:08:04,819 INFO L124 PetriNetUnfolderBase]: 15/101 cut-off events. [2025-02-08 14:08:04,822 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:08:04,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 101 events. 15/101 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 388 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2025-02-08 14:08:04,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 104 transitions, 229 flow [2025-02-08 14:08:04,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 99 transitions, 213 flow [2025-02-08 14:08:04,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:08:04,848 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;@45fab6c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:08:04,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 14:08:04,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:08:04,857 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2025-02-08 14:08:04,857 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:08:04,858 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:04,858 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:04,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:04,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1568897613, now seen corresponding path program 1 times [2025-02-08 14:08:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:04,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924783944] [2025-02-08 14:08:04,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:04,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:04,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:08:04,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:08:04,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:04,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:05,103 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 14:08:05,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:05,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924783944] [2025-02-08 14:08:05,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924783944] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:05,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:05,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:05,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675987889] [2025-02-08 14:08:05,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:05,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:05,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:05,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:05,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:05,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:05,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:05,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:05,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:05,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:07,255 INFO L124 PetriNetUnfolderBase]: 14426/23119 cut-off events. [2025-02-08 14:08:07,256 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2025-02-08 14:08:07,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42888 conditions, 23119 events. 14426/23119 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 1181. Compared 190366 event pairs, 5420 based on Foata normal form. 532/19400 useless extension candidates. Maximal degree in co-relation 41883. Up to 9872 conditions per place. [2025-02-08 14:08:07,678 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 101 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2025-02-08 14:08:07,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 156 transitions, 549 flow [2025-02-08 14:08:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2025-02-08 14:08:07,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7788461538461539 [2025-02-08 14:08:07,701 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 213 flow. Second operand 4 states and 324 transitions. [2025-02-08 14:08:07,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 156 transitions, 549 flow [2025-02-08 14:08:07,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 156 transitions, 534 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:08:07,755 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 230 flow [2025-02-08 14:08:07,761 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=94, PETRI_TRANSITIONS=100} [2025-02-08 14:08:07,764 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-02-08 14:08:07,764 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 230 flow [2025-02-08 14:08:07,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:07,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:07,764 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:07,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:08:07,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:07,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:07,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1391185141, now seen corresponding path program 1 times [2025-02-08 14:08:07,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:07,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086386058] [2025-02-08 14:08:07,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:07,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:07,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:08:07,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:08:07,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:07,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:07,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:07,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086386058] [2025-02-08 14:08:07,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086386058] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:07,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:07,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:07,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295962738] [2025-02-08 14:08:07,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:07,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:07,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:07,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:07,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:07,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 104 [2025-02-08 14:08:07,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:07,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:07,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 104 [2025-02-08 14:08:07,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:09,293 INFO L124 PetriNetUnfolderBase]: 11022/19619 cut-off events. [2025-02-08 14:08:09,294 INFO L125 PetriNetUnfolderBase]: For 2369/2391 co-relation queries the response was YES. [2025-02-08 14:08:09,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37424 conditions, 19619 events. 11022/19619 cut-off events. For 2369/2391 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 176164 event pairs, 2870 based on Foata normal form. 22/17074 useless extension candidates. Maximal degree in co-relation 22040. Up to 9417 conditions per place. [2025-02-08 14:08:09,393 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 69 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2025-02-08 14:08:09,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 427 flow [2025-02-08 14:08:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2025-02-08 14:08:09,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2025-02-08 14:08:09,398 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 230 flow. Second operand 4 states and 299 transitions. [2025-02-08 14:08:09,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 427 flow [2025-02-08 14:08:09,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 126 transitions, 427 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:09,439 INFO L231 Difference]: Finished difference. Result has 96 places, 99 transitions, 232 flow [2025-02-08 14:08:09,440 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=96, PETRI_TRANSITIONS=99} [2025-02-08 14:08:09,441 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-02-08 14:08:09,441 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 99 transitions, 232 flow [2025-02-08 14:08:09,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:09,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:09,441 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:09,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:08:09,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:09,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash -177096553, now seen corresponding path program 1 times [2025-02-08 14:08:09,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:09,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775637707] [2025-02-08 14:08:09,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:09,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:09,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:08:09,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:08:09,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:09,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:09,527 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 14:08:09,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:09,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775637707] [2025-02-08 14:08:09,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775637707] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:09,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:09,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:09,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098414653] [2025-02-08 14:08:09,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:09,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:09,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:09,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:09,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:09,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 104 [2025-02-08 14:08:09,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 99 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:09,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:09,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 104 [2025-02-08 14:08:09,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:10,717 INFO L124 PetriNetUnfolderBase]: 11044/19397 cut-off events. [2025-02-08 14:08:10,721 INFO L125 PetriNetUnfolderBase]: For 3921/3943 co-relation queries the response was YES. [2025-02-08 14:08:10,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37514 conditions, 19397 events. 11044/19397 cut-off events. For 3921/3943 co-relation queries the response was YES. Maximal size of possible extension queue 1003. Compared 171651 event pairs, 2870 based on Foata normal form. 288/17118 useless extension candidates. Maximal degree in co-relation 22285. Up to 9683 conditions per place. [2025-02-08 14:08:11,210 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 70 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2025-02-08 14:08:11,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 125 transitions, 429 flow [2025-02-08 14:08:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:11,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:11,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2025-02-08 14:08:11,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7091346153846154 [2025-02-08 14:08:11,212 INFO L175 Difference]: Start difference. First operand has 96 places, 99 transitions, 232 flow. Second operand 4 states and 295 transitions. [2025-02-08 14:08:11,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 125 transitions, 429 flow [2025-02-08 14:08:11,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 125 transitions, 426 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:11,250 INFO L231 Difference]: Finished difference. Result has 96 places, 98 transitions, 229 flow [2025-02-08 14:08:11,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=229, PETRI_PLACES=96, PETRI_TRANSITIONS=98} [2025-02-08 14:08:11,251 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-02-08 14:08:11,252 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 98 transitions, 229 flow [2025-02-08 14:08:11,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:11,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:11,252 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:11,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:08:11,252 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:11,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:11,253 INFO L85 PathProgramCache]: Analyzing trace with hash -574302202, now seen corresponding path program 1 times [2025-02-08 14:08:11,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:11,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910957191] [2025-02-08 14:08:11,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:11,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:11,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:08:11,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:08:11,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:11,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:11,378 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 14:08:11,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:11,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910957191] [2025-02-08 14:08:11,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910957191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:11,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:11,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:11,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912736095] [2025-02-08 14:08:11,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:11,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:11,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:11,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:11,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:11,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:11,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 98 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:11,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:11,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:11,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:13,326 INFO L124 PetriNetUnfolderBase]: 17909/30119 cut-off events. [2025-02-08 14:08:13,326 INFO L125 PetriNetUnfolderBase]: For 4966/5403 co-relation queries the response was YES. [2025-02-08 14:08:13,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58524 conditions, 30119 events. 17909/30119 cut-off events. For 4966/5403 co-relation queries the response was YES. Maximal size of possible extension queue 1504. Compared 271484 event pairs, 7046 based on Foata normal form. 1131/26266 useless extension candidates. Maximal degree in co-relation 36886. Up to 12317 conditions per place. [2025-02-08 14:08:13,451 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 102 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2025-02-08 14:08:13,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 155 transitions, 591 flow [2025-02-08 14:08:13,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2025-02-08 14:08:13,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7740384615384616 [2025-02-08 14:08:13,453 INFO L175 Difference]: Start difference. First operand has 96 places, 98 transitions, 229 flow. Second operand 4 states and 322 transitions. [2025-02-08 14:08:13,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 155 transitions, 591 flow [2025-02-08 14:08:13,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 155 transitions, 586 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:13,472 INFO L231 Difference]: Finished difference. Result has 99 places, 99 transitions, 252 flow [2025-02-08 14:08:13,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=99, PETRI_TRANSITIONS=99} [2025-02-08 14:08:13,473 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2025-02-08 14:08:13,474 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 99 transitions, 252 flow [2025-02-08 14:08:13,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:13,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:13,475 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:13,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:08:13,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:13,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1195026227, now seen corresponding path program 1 times [2025-02-08 14:08:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:13,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828591664] [2025-02-08 14:08:13,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:13,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:13,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:13,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:13,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:13,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:13,592 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 14:08:13,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:13,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828591664] [2025-02-08 14:08:13,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828591664] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:13,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:13,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:13,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609196648] [2025-02-08 14:08:13,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:13,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:13,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:13,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:13,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:13,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2025-02-08 14:08:13,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 99 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:13,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:13,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2025-02-08 14:08:13,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:15,080 INFO L124 PetriNetUnfolderBase]: 18043/28992 cut-off events. [2025-02-08 14:08:15,081 INFO L125 PetriNetUnfolderBase]: For 5758/6649 co-relation queries the response was YES. [2025-02-08 14:08:15,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60820 conditions, 28992 events. 18043/28992 cut-off events. For 5758/6649 co-relation queries the response was YES. Maximal size of possible extension queue 1441. Compared 248102 event pairs, 3580 based on Foata normal form. 448/26287 useless extension candidates. Maximal degree in co-relation 38072. Up to 14044 conditions per place. [2025-02-08 14:08:15,243 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 100 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2025-02-08 14:08:15,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 154 transitions, 600 flow [2025-02-08 14:08:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:15,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 377 transitions. [2025-02-08 14:08:15,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-02-08 14:08:15,245 INFO L175 Difference]: Start difference. First operand has 99 places, 99 transitions, 252 flow. Second operand 5 states and 377 transitions. [2025-02-08 14:08:15,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 154 transitions, 600 flow [2025-02-08 14:08:15,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 154 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:15,306 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 258 flow [2025-02-08 14:08:15,306 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2025-02-08 14:08:15,307 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-02-08 14:08:15,307 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 258 flow [2025-02-08 14:08:15,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:15,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:15,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:15,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:08:15,307 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:15,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1195025234, now seen corresponding path program 1 times [2025-02-08 14:08:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881232777] [2025-02-08 14:08:15,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:15,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:15,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:15,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:15,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:15,369 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 14:08:15,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:15,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881232777] [2025-02-08 14:08:15,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881232777] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:15,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:15,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:15,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256778434] [2025-02-08 14:08:15,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:15,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:15,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:15,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:15,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:15,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:15,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:15,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:15,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:15,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:16,989 INFO L124 PetriNetUnfolderBase]: 14936/26368 cut-off events. [2025-02-08 14:08:16,990 INFO L125 PetriNetUnfolderBase]: For 8101/8837 co-relation queries the response was YES. [2025-02-08 14:08:17,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54232 conditions, 26368 events. 14936/26368 cut-off events. For 8101/8837 co-relation queries the response was YES. Maximal size of possible extension queue 1322. Compared 245165 event pairs, 7354 based on Foata normal form. 710/24157 useless extension candidates. Maximal degree in co-relation 33557. Up to 12456 conditions per place. [2025-02-08 14:08:17,118 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 102 selfloop transitions, 3 changer transitions 0/155 dead transitions. [2025-02-08 14:08:17,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 155 transitions, 608 flow [2025-02-08 14:08:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2025-02-08 14:08:17,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7668269230769231 [2025-02-08 14:08:17,120 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 258 flow. Second operand 4 states and 319 transitions. [2025-02-08 14:08:17,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 155 transitions, 608 flow [2025-02-08 14:08:17,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 155 transitions, 603 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:17,156 INFO L231 Difference]: Finished difference. Result has 102 places, 97 transitions, 253 flow [2025-02-08 14:08:17,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=102, PETRI_TRANSITIONS=97} [2025-02-08 14:08:17,157 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-02-08 14:08:17,158 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 97 transitions, 253 flow [2025-02-08 14:08:17,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:17,158 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:17,158 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:17,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:08:17,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:17,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:17,159 INFO L85 PathProgramCache]: Analyzing trace with hash -623498442, now seen corresponding path program 1 times [2025-02-08 14:08:17,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:17,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249037214] [2025-02-08 14:08:17,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:17,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:08:17,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:08:17,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:17,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:17,206 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 14:08:17,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249037214] [2025-02-08 14:08:17,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249037214] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:17,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:17,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:17,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974295978] [2025-02-08 14:08:17,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:17,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:17,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:17,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:17,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:17,225 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 104 [2025-02-08 14:08:17,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:17,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:17,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 104 [2025-02-08 14:08:17,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:18,425 INFO L124 PetriNetUnfolderBase]: 13591/25106 cut-off events. [2025-02-08 14:08:18,425 INFO L125 PetriNetUnfolderBase]: For 7159/7511 co-relation queries the response was YES. [2025-02-08 14:08:18,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51288 conditions, 25106 events. 13591/25106 cut-off events. For 7159/7511 co-relation queries the response was YES. Maximal size of possible extension queue 1289. Compared 240898 event pairs, 3576 based on Foata normal form. 352/22601 useless extension candidates. Maximal degree in co-relation 32461. Up to 11910 conditions per place. [2025-02-08 14:08:18,737 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 70 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2025-02-08 14:08:18,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 123 transitions, 471 flow [2025-02-08 14:08:18,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:18,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2025-02-08 14:08:18,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7163461538461539 [2025-02-08 14:08:18,738 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 253 flow. Second operand 4 states and 298 transitions. [2025-02-08 14:08:18,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 123 transitions, 471 flow [2025-02-08 14:08:18,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 123 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:18,817 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 250 flow [2025-02-08 14:08:18,817 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2025-02-08 14:08:18,819 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-02-08 14:08:18,819 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 250 flow [2025-02-08 14:08:18,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:18,819 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:18,819 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:18,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:08:18,819 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:18,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1608893242, now seen corresponding path program 1 times [2025-02-08 14:08:18,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:18,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579721422] [2025-02-08 14:08:18,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:18,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:18,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:18,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:18,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:18,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:18,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:18,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579721422] [2025-02-08 14:08:18,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579721422] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:18,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:18,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434386774] [2025-02-08 14:08:18,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:18,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:18,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:18,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:18,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:18,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:18,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 53.166666666666664) internal successors, (319), 6 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:18,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:18,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:18,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:20,721 INFO L124 PetriNetUnfolderBase]: 17705/28249 cut-off events. [2025-02-08 14:08:20,722 INFO L125 PetriNetUnfolderBase]: For 7509/8421 co-relation queries the response was YES. [2025-02-08 14:08:20,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60768 conditions, 28249 events. 17705/28249 cut-off events. For 7509/8421 co-relation queries the response was YES. Maximal size of possible extension queue 1446. Compared 239479 event pairs, 3559 based on Foata normal form. 469/26241 useless extension candidates. Maximal degree in co-relation 38184. Up to 9060 conditions per place. [2025-02-08 14:08:20,881 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 125 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2025-02-08 14:08:20,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 180 transitions, 733 flow [2025-02-08 14:08:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 440 transitions. [2025-02-08 14:08:20,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2025-02-08 14:08:20,890 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 250 flow. Second operand 6 states and 440 transitions. [2025-02-08 14:08:20,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 180 transitions, 733 flow [2025-02-08 14:08:20,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 180 transitions, 727 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:20,952 INFO L231 Difference]: Finished difference. Result has 105 places, 96 transitions, 268 flow [2025-02-08 14:08:20,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=105, PETRI_TRANSITIONS=96} [2025-02-08 14:08:20,953 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2025-02-08 14:08:20,953 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 96 transitions, 268 flow [2025-02-08 14:08:20,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.166666666666664) internal successors, (319), 6 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:20,953 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:20,953 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:20,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:08:20,953 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:20,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:20,968 INFO L85 PathProgramCache]: Analyzing trace with hash -440999041, now seen corresponding path program 1 times [2025-02-08 14:08:20,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:20,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985448884] [2025-02-08 14:08:20,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:20,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:20,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:20,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:20,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:20,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:21,061 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 14:08:21,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:21,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985448884] [2025-02-08 14:08:21,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985448884] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:21,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:21,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:21,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131093108] [2025-02-08 14:08:21,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:21,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:21,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:21,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:21,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:21,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:21,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 96 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 14:08:21,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:21,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:21,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:23,032 INFO L124 PetriNetUnfolderBase]: 21785/37219 cut-off events. [2025-02-08 14:08:23,032 INFO L125 PetriNetUnfolderBase]: For 21816/24632 co-relation queries the response was YES. [2025-02-08 14:08:23,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81532 conditions, 37219 events. 21785/37219 cut-off events. For 21816/24632 co-relation queries the response was YES. Maximal size of possible extension queue 1827. Compared 350856 event pairs, 9506 based on Foata normal form. 2788/35116 useless extension candidates. Maximal degree in co-relation 50999. Up to 15904 conditions per place. [2025-02-08 14:08:23,353 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 106 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2025-02-08 14:08:23,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 155 transitions, 692 flow [2025-02-08 14:08:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:23,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 320 transitions. [2025-02-08 14:08:23,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2025-02-08 14:08:23,355 INFO L175 Difference]: Start difference. First operand has 105 places, 96 transitions, 268 flow. Second operand 4 states and 320 transitions. [2025-02-08 14:08:23,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 155 transitions, 692 flow [2025-02-08 14:08:23,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 155 transitions, 678 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:23,405 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 288 flow [2025-02-08 14:08:23,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2025-02-08 14:08:23,405 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2025-02-08 14:08:23,406 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 288 flow [2025-02-08 14:08:23,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 14:08:23,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:23,407 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:23,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:08:23,407 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:23,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2146354666, now seen corresponding path program 1 times [2025-02-08 14:08:23,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:23,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270560066] [2025-02-08 14:08:23,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:23,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:23,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:08:23,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:08:23,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:23,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:23,458 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 14:08:23,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:23,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270560066] [2025-02-08 14:08:23,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270560066] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:23,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:23,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:23,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847511481] [2025-02-08 14:08:23,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:23,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:23,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:23,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:23,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 104 [2025-02-08 14:08:23,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 14:08:23,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:23,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 104 [2025-02-08 14:08:23,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:24,729 INFO L124 PetriNetUnfolderBase]: 16663/31417 cut-off events. [2025-02-08 14:08:24,729 INFO L125 PetriNetUnfolderBase]: For 17393/19424 co-relation queries the response was YES. [2025-02-08 14:08:24,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69275 conditions, 31417 events. 16663/31417 cut-off events. For 17393/19424 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 316750 event pairs, 4587 based on Foata normal form. 1887/30327 useless extension candidates. Maximal degree in co-relation 45415. Up to 14916 conditions per place. [2025-02-08 14:08:24,924 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 75 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2025-02-08 14:08:24,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 125 transitions, 535 flow [2025-02-08 14:08:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:24,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2025-02-08 14:08:24,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7067307692307693 [2025-02-08 14:08:24,927 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 288 flow. Second operand 4 states and 294 transitions. [2025-02-08 14:08:24,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 125 transitions, 535 flow [2025-02-08 14:08:25,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 125 transitions, 535 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:08:25,050 INFO L231 Difference]: Finished difference. Result has 109 places, 96 transitions, 288 flow [2025-02-08 14:08:25,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=109, PETRI_TRANSITIONS=96} [2025-02-08 14:08:25,051 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 15 predicate places. [2025-02-08 14:08:25,051 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 96 transitions, 288 flow [2025-02-08 14:08:25,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:25,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:25,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:25,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:08:25,051 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:25,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash -745227500, now seen corresponding path program 1 times [2025-02-08 14:08:25,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:25,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095708850] [2025-02-08 14:08:25,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:25,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:25,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:25,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:25,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:25,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:25,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095708850] [2025-02-08 14:08:25,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095708850] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:25,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:25,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:25,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546242235] [2025-02-08 14:08:25,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:25,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:25,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:25,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:25,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:25,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:25,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 96 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:25,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:25,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:25,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:27,443 INFO L124 PetriNetUnfolderBase]: 22327/37972 cut-off events. [2025-02-08 14:08:27,443 INFO L125 PetriNetUnfolderBase]: For 20050/21720 co-relation queries the response was YES. [2025-02-08 14:08:27,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86421 conditions, 37972 events. 22327/37972 cut-off events. For 20050/21720 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 358948 event pairs, 10462 based on Foata normal form. 1795/36549 useless extension candidates. Maximal degree in co-relation 61681. Up to 16945 conditions per place. [2025-02-08 14:08:27,785 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 103 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2025-02-08 14:08:27,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 154 transitions, 673 flow [2025-02-08 14:08:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2025-02-08 14:08:27,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7620192307692307 [2025-02-08 14:08:27,786 INFO L175 Difference]: Start difference. First operand has 109 places, 96 transitions, 288 flow. Second operand 4 states and 317 transitions. [2025-02-08 14:08:27,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 154 transitions, 673 flow [2025-02-08 14:08:27,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 154 transitions, 666 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:27,833 INFO L231 Difference]: Finished difference. Result has 108 places, 95 transitions, 284 flow [2025-02-08 14:08:27,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=108, PETRI_TRANSITIONS=95} [2025-02-08 14:08:27,834 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 14 predicate places. [2025-02-08 14:08:27,834 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 95 transitions, 284 flow [2025-02-08 14:08:27,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:27,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:27,834 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:27,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:08:27,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:27,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash -786067717, now seen corresponding path program 1 times [2025-02-08 14:08:27,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:27,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385510860] [2025-02-08 14:08:27,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:27,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:27,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:27,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:27,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:27,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:27,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:27,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385510860] [2025-02-08 14:08:27,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385510860] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:27,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:27,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:27,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364457345] [2025-02-08 14:08:27,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:27,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:27,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:27,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:27,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:27,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 104 [2025-02-08 14:08:27,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 95 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:27,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:27,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 104 [2025-02-08 14:08:27,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:30,060 INFO L124 PetriNetUnfolderBase]: 18664/35650 cut-off events. [2025-02-08 14:08:30,061 INFO L125 PetriNetUnfolderBase]: For 21889/23489 co-relation queries the response was YES. [2025-02-08 14:08:30,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78760 conditions, 35650 events. 18664/35650 cut-off events. For 21889/23489 co-relation queries the response was YES. Maximal size of possible extension queue 1745. Compared 369524 event pairs, 5822 based on Foata normal form. 1600/33610 useless extension candidates. Maximal degree in co-relation 52915. Up to 15268 conditions per place. [2025-02-08 14:08:30,251 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 73 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2025-02-08 14:08:30,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 122 transitions, 532 flow [2025-02-08 14:08:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 297 transitions. [2025-02-08 14:08:30,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7139423076923077 [2025-02-08 14:08:30,253 INFO L175 Difference]: Start difference. First operand has 108 places, 95 transitions, 284 flow. Second operand 4 states and 297 transitions. [2025-02-08 14:08:30,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 122 transitions, 532 flow [2025-02-08 14:08:30,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 122 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:08:30,415 INFO L231 Difference]: Finished difference. Result has 109 places, 94 transitions, 283 flow [2025-02-08 14:08:30,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=283, PETRI_PLACES=109, PETRI_TRANSITIONS=94} [2025-02-08 14:08:30,417 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 15 predicate places. [2025-02-08 14:08:30,417 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 94 transitions, 283 flow [2025-02-08 14:08:30,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:30,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:30,419 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:30,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:08:30,420 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:30,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:30,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2112484856, now seen corresponding path program 1 times [2025-02-08 14:08:30,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:30,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458727803] [2025-02-08 14:08:30,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:30,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:30,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:30,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:30,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:30,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:30,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458727803] [2025-02-08 14:08:30,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458727803] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:30,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:30,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:30,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757830481] [2025-02-08 14:08:30,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:30,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:30,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:30,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:30,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2025-02-08 14:08:30,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 94 transitions, 283 flow. Second operand has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:30,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:30,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2025-02-08 14:08:30,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:32,524 INFO L124 PetriNetUnfolderBase]: 24683/40443 cut-off events. [2025-02-08 14:08:32,525 INFO L125 PetriNetUnfolderBase]: For 22361/24968 co-relation queries the response was YES. [2025-02-08 14:08:32,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95118 conditions, 40443 events. 24683/40443 cut-off events. For 22361/24968 co-relation queries the response was YES. Maximal size of possible extension queue 1940. Compared 365911 event pairs, 5181 based on Foata normal form. 2111/39156 useless extension candidates. Maximal degree in co-relation 63501. Up to 19623 conditions per place. [2025-02-08 14:08:32,869 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 104 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2025-02-08 14:08:32,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 151 transitions, 697 flow [2025-02-08 14:08:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:32,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2025-02-08 14:08:32,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7211538461538461 [2025-02-08 14:08:32,871 INFO L175 Difference]: Start difference. First operand has 109 places, 94 transitions, 283 flow. Second operand 5 states and 375 transitions. [2025-02-08 14:08:32,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 151 transitions, 697 flow [2025-02-08 14:08:33,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 151 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:33,030 INFO L231 Difference]: Finished difference. Result has 110 places, 93 transitions, 286 flow [2025-02-08 14:08:33,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=110, PETRI_TRANSITIONS=93} [2025-02-08 14:08:33,031 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 16 predicate places. [2025-02-08 14:08:33,031 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 93 transitions, 286 flow [2025-02-08 14:08:33,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.8) internal successors, (284), 5 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:33,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:33,036 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:33,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:08:33,036 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:33,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:33,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2112485849, now seen corresponding path program 1 times [2025-02-08 14:08:33,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:33,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114354667] [2025-02-08 14:08:33,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:33,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:33,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:08:33,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:08:33,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:33,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:33,088 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 14:08:33,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:33,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114354667] [2025-02-08 14:08:33,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114354667] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:33,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:33,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:33,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411159618] [2025-02-08 14:08:33,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:33,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:33,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:33,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:33,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:33,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:33,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 93 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:33,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:33,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:33,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:34,853 INFO L124 PetriNetUnfolderBase]: 20452/37060 cut-off events. [2025-02-08 14:08:34,854 INFO L125 PetriNetUnfolderBase]: For 21960/24000 co-relation queries the response was YES. [2025-02-08 14:08:35,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84978 conditions, 37060 events. 20452/37060 cut-off events. For 21960/24000 co-relation queries the response was YES. Maximal size of possible extension queue 1759. Compared 367799 event pairs, 10870 based on Foata normal form. 2188/36197 useless extension candidates. Maximal degree in co-relation 56809. Up to 17245 conditions per place. [2025-02-08 14:08:35,154 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 106 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2025-02-08 14:08:35,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 152 transitions, 700 flow [2025-02-08 14:08:35,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2025-02-08 14:08:35,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7620192307692307 [2025-02-08 14:08:35,156 INFO L175 Difference]: Start difference. First operand has 110 places, 93 transitions, 286 flow. Second operand 4 states and 317 transitions. [2025-02-08 14:08:35,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 152 transitions, 700 flow [2025-02-08 14:08:35,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 152 transitions, 695 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:08:35,270 INFO L231 Difference]: Finished difference. Result has 110 places, 92 transitions, 281 flow [2025-02-08 14:08:35,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=281, PETRI_PLACES=110, PETRI_TRANSITIONS=92} [2025-02-08 14:08:35,271 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 16 predicate places. [2025-02-08 14:08:35,271 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 92 transitions, 281 flow [2025-02-08 14:08:35,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:35,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:35,272 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:35,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:08:35,272 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:35,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1401674467, now seen corresponding path program 1 times [2025-02-08 14:08:35,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:35,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787291360] [2025-02-08 14:08:35,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:35,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:08:35,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:08:35,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:35,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:35,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:35,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787291360] [2025-02-08 14:08:35,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787291360] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:35,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:35,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:08:35,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807288057] [2025-02-08 14:08:35,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:35,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:35,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:35,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:35,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:35,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 104 [2025-02-08 14:08:35,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 92 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:35,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:35,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 104 [2025-02-08 14:08:35,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:37,051 INFO L124 PetriNetUnfolderBase]: 18654/34970 cut-off events. [2025-02-08 14:08:37,051 INFO L125 PetriNetUnfolderBase]: For 20118/21718 co-relation queries the response was YES. [2025-02-08 14:08:37,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79181 conditions, 34970 events. 18654/34970 cut-off events. For 20118/21718 co-relation queries the response was YES. Maximal size of possible extension queue 1697. Compared 355616 event pairs, 5822 based on Foata normal form. 2063/33600 useless extension candidates. Maximal degree in co-relation 52918. Up to 15731 conditions per place. [2025-02-08 14:08:37,273 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 74 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2025-02-08 14:08:37,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 119 transitions, 531 flow [2025-02-08 14:08:37,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2025-02-08 14:08:37,274 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7043269230769231 [2025-02-08 14:08:37,274 INFO L175 Difference]: Start difference. First operand has 110 places, 92 transitions, 281 flow. Second operand 4 states and 293 transitions. [2025-02-08 14:08:37,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 119 transitions, 531 flow [2025-02-08 14:08:37,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 119 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:37,402 INFO L231 Difference]: Finished difference. Result has 110 places, 91 transitions, 276 flow [2025-02-08 14:08:37,402 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=110, PETRI_TRANSITIONS=91} [2025-02-08 14:08:37,402 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 16 predicate places. [2025-02-08 14:08:37,402 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 91 transitions, 276 flow [2025-02-08 14:08:37,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:37,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:37,402 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:37,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:08:37,402 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:37,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1062521741, now seen corresponding path program 1 times [2025-02-08 14:08:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:37,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735967485] [2025-02-08 14:08:37,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:37,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:08:37,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:08:37,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:37,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:37,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:37,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735967485] [2025-02-08 14:08:37,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735967485] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:37,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:37,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:37,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022832071] [2025-02-08 14:08:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:37,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:37,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:37,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:37,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:37,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:37,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 91 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:37,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:37,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:37,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:39,533 INFO L124 PetriNetUnfolderBase]: 24189/39378 cut-off events. [2025-02-08 14:08:39,533 INFO L125 PetriNetUnfolderBase]: For 22866/24988 co-relation queries the response was YES. [2025-02-08 14:08:39,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95075 conditions, 39378 events. 24189/39378 cut-off events. For 22866/24988 co-relation queries the response was YES. Maximal size of possible extension queue 1975. Compared 353514 event pairs, 5170 based on Foata normal form. 2122/39090 useless extension candidates. Maximal degree in co-relation 63493. Up to 12667 conditions per place. [2025-02-08 14:08:39,858 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 130 selfloop transitions, 7 changer transitions 0/178 dead transitions. [2025-02-08 14:08:39,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 178 transitions, 853 flow [2025-02-08 14:08:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2025-02-08 14:08:39,860 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7003205128205128 [2025-02-08 14:08:39,860 INFO L175 Difference]: Start difference. First operand has 110 places, 91 transitions, 276 flow. Second operand 6 states and 437 transitions. [2025-02-08 14:08:39,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 178 transitions, 853 flow [2025-02-08 14:08:39,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 178 transitions, 847 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:39,978 INFO L231 Difference]: Finished difference. Result has 113 places, 91 transitions, 294 flow [2025-02-08 14:08:39,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=294, PETRI_PLACES=113, PETRI_TRANSITIONS=91} [2025-02-08 14:08:39,979 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 19 predicate places. [2025-02-08 14:08:39,982 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 91 transitions, 294 flow [2025-02-08 14:08:39,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:39,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:39,982 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:39,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:08:39,982 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:39,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 502236190, now seen corresponding path program 1 times [2025-02-08 14:08:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:39,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99637780] [2025-02-08 14:08:39,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:39,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:39,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:39,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:39,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:39,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:40,013 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 14:08:40,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:40,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99637780] [2025-02-08 14:08:40,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99637780] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:40,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:40,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:40,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213465796] [2025-02-08 14:08:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:40,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:08:40,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:40,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:08:40,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:08:40,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 104 [2025-02-08 14:08:40,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 91 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:40,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:40,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 104 [2025-02-08 14:08:40,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:41,808 INFO L124 PetriNetUnfolderBase]: 20578/36977 cut-off events. [2025-02-08 14:08:41,809 INFO L125 PetriNetUnfolderBase]: For 30479/33457 co-relation queries the response was YES. [2025-02-08 14:08:42,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89066 conditions, 36977 events. 20578/36977 cut-off events. For 30479/33457 co-relation queries the response was YES. Maximal size of possible extension queue 1769. Compared 366056 event pairs, 11284 based on Foata normal form. 3144/36895 useless extension candidates. Maximal degree in co-relation 59547. Up to 17893 conditions per place. [2025-02-08 14:08:42,132 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 107 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2025-02-08 14:08:42,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 150 transitions, 738 flow [2025-02-08 14:08:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:08:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:08:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2025-02-08 14:08:42,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7572115384615384 [2025-02-08 14:08:42,137 INFO L175 Difference]: Start difference. First operand has 113 places, 91 transitions, 294 flow. Second operand 4 states and 315 transitions. [2025-02-08 14:08:42,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 150 transitions, 738 flow [2025-02-08 14:08:42,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 150 transitions, 722 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:08:42,268 INFO L231 Difference]: Finished difference. Result has 112 places, 90 transitions, 286 flow [2025-02-08 14:08:42,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2025-02-08 14:08:42,268 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 18 predicate places. [2025-02-08 14:08:42,268 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 286 flow [2025-02-08 14:08:42,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:42,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:42,269 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:42,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:08:42,269 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:42,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:42,269 INFO L85 PathProgramCache]: Analyzing trace with hash 502235197, now seen corresponding path program 1 times [2025-02-08 14:08:42,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:42,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649537126] [2025-02-08 14:08:42,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:42,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:42,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:42,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:42,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:42,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:42,326 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 14:08:42,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:42,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649537126] [2025-02-08 14:08:42,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649537126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:42,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:42,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:08:42,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057101998] [2025-02-08 14:08:42,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:42,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:42,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:42,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:42,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:42,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 104 [2025-02-08 14:08:42,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:42,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:42,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 104 [2025-02-08 14:08:42,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:44,369 INFO L124 PetriNetUnfolderBase]: 24124/39322 cut-off events. [2025-02-08 14:08:44,370 INFO L125 PetriNetUnfolderBase]: For 26239/29986 co-relation queries the response was YES. [2025-02-08 14:08:44,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99308 conditions, 39322 events. 24124/39322 cut-off events. For 26239/29986 co-relation queries the response was YES. Maximal size of possible extension queue 1877. Compared 353406 event pairs, 5844 based on Foata normal form. 3285/39381 useless extension candidates. Maximal degree in co-relation 66283. Up to 18558 conditions per place. [2025-02-08 14:08:44,663 INFO L140 encePairwiseOnDemand]: 99/104 looper letters, 105 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2025-02-08 14:08:44,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 147 transitions, 720 flow [2025-02-08 14:08:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:08:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:08:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 373 transitions. [2025-02-08 14:08:44,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7173076923076923 [2025-02-08 14:08:44,665 INFO L175 Difference]: Start difference. First operand has 112 places, 90 transitions, 286 flow. Second operand 5 states and 373 transitions. [2025-02-08 14:08:44,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 147 transitions, 720 flow [2025-02-08 14:08:44,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 147 transitions, 715 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:44,780 INFO L231 Difference]: Finished difference. Result has 113 places, 89 transitions, 287 flow [2025-02-08 14:08:44,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=287, PETRI_PLACES=113, PETRI_TRANSITIONS=89} [2025-02-08 14:08:44,782 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 19 predicate places. [2025-02-08 14:08:44,782 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 89 transitions, 287 flow [2025-02-08 14:08:44,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:44,787 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:44,790 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:44,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:08:44,791 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:44,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash -502874817, now seen corresponding path program 1 times [2025-02-08 14:08:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102767686] [2025-02-08 14:08:44,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:44,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:08:44,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:08:44,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:44,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:08:44,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:44,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102767686] [2025-02-08 14:08:44,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102767686] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:44,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:44,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:08:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607754417] [2025-02-08 14:08:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:44,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:44,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:44,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:44,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:44,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 89 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:44,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:44,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:44,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:46,913 INFO L124 PetriNetUnfolderBase]: 24121/38650 cut-off events. [2025-02-08 14:08:46,914 INFO L125 PetriNetUnfolderBase]: For 23214/25277 co-relation queries the response was YES. [2025-02-08 14:08:47,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99649 conditions, 38650 events. 24121/38650 cut-off events. For 23214/25277 co-relation queries the response was YES. Maximal size of possible extension queue 1890. Compared 338863 event pairs, 10859 based on Foata normal form. 2557/39233 useless extension candidates. Maximal degree in co-relation 66601. Up to 17739 conditions per place. [2025-02-08 14:08:47,256 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 163 selfloop transitions, 7 changer transitions 0/207 dead transitions. [2025-02-08 14:08:47,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 207 transitions, 1039 flow [2025-02-08 14:08:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2025-02-08 14:08:47,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-02-08 14:08:47,258 INFO L175 Difference]: Start difference. First operand has 113 places, 89 transitions, 287 flow. Second operand 6 states and 468 transitions. [2025-02-08 14:08:47,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 207 transitions, 1039 flow [2025-02-08 14:08:47,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 207 transitions, 1027 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:08:47,718 INFO L231 Difference]: Finished difference. Result has 115 places, 90 transitions, 305 flow [2025-02-08 14:08:47,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=115, PETRI_TRANSITIONS=90} [2025-02-08 14:08:47,718 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 21 predicate places. [2025-02-08 14:08:47,719 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 90 transitions, 305 flow [2025-02-08 14:08:47,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:47,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:47,719 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 14:08:47,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:08:47,719 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:47,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1610577402, now seen corresponding path program 1 times [2025-02-08 14:08:47,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:47,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367807599] [2025-02-08 14:08:47,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:47,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:47,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:08:47,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:08:47,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:47,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:47,983 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 14:08:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367807599] [2025-02-08 14:08:47,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367807599] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:47,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:47,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:08:47,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851944685] [2025-02-08 14:08:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:47,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:08:47,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:47,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:08:47,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:08:48,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:48,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 90 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:48,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:48,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:48,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:49,817 INFO L124 PetriNetUnfolderBase]: 24124/38268 cut-off events. [2025-02-08 14:08:49,818 INFO L125 PetriNetUnfolderBase]: For 40655/43940 co-relation queries the response was YES. [2025-02-08 14:08:50,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101658 conditions, 38268 events. 24124/38268 cut-off events. For 40655/43940 co-relation queries the response was YES. Maximal size of possible extension queue 1879. Compared 331504 event pairs, 5844 based on Foata normal form. 3285/39253 useless extension candidates. Maximal degree in co-relation 69249. Up to 11978 conditions per place. [2025-02-08 14:08:50,116 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 135 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2025-02-08 14:08:50,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 180 transitions, 961 flow [2025-02-08 14:08:50,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:50,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 434 transitions. [2025-02-08 14:08:50,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6955128205128205 [2025-02-08 14:08:50,121 INFO L175 Difference]: Start difference. First operand has 115 places, 90 transitions, 305 flow. Second operand 6 states and 434 transitions. [2025-02-08 14:08:50,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 180 transitions, 961 flow [2025-02-08 14:08:50,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 180 transitions, 927 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-08 14:08:50,254 INFO L231 Difference]: Finished difference. Result has 118 places, 90 transitions, 316 flow [2025-02-08 14:08:50,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=118, PETRI_TRANSITIONS=90} [2025-02-08 14:08:50,255 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 24 predicate places. [2025-02-08 14:08:50,255 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 90 transitions, 316 flow [2025-02-08 14:08:50,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:50,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:08:50,255 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:08:50,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 14:08:50,256 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:08:50,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:08:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1764569596, now seen corresponding path program 1 times [2025-02-08 14:08:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:08:50,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951160442] [2025-02-08 14:08:50,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:08:50,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:08:50,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:08:50,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:08:50,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:08:50,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:08:50,362 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 14:08:50,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:08:50,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951160442] [2025-02-08 14:08:50,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951160442] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:08:50,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:08:50,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:08:50,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40193973] [2025-02-08 14:08:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:08:50,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:08:50,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:08:50,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:08:50,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:08:50,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 104 [2025-02-08 14:08:50,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 90 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:50,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:08:50,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 104 [2025-02-08 14:08:50,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:08:52,288 INFO L124 PetriNetUnfolderBase]: 24124/37053 cut-off events. [2025-02-08 14:08:52,288 INFO L125 PetriNetUnfolderBase]: For 37687/40851 co-relation queries the response was YES. [2025-02-08 14:08:52,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102594 conditions, 37053 events. 24124/37053 cut-off events. For 37687/40851 co-relation queries the response was YES. Maximal size of possible extension queue 1797. Compared 308983 event pairs, 11284 based on Foata normal form. 3627/39238 useless extension candidates. Maximal degree in co-relation 69738. Up to 18356 conditions per place. [2025-02-08 14:08:52,524 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 0 selfloop transitions, 0 changer transitions 212/212 dead transitions. [2025-02-08 14:08:52,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 212 transitions, 1136 flow [2025-02-08 14:08:52,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:08:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:08:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 464 transitions. [2025-02-08 14:08:52,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2025-02-08 14:08:52,530 INFO L175 Difference]: Start difference. First operand has 118 places, 90 transitions, 316 flow. Second operand 6 states and 464 transitions. [2025-02-08 14:08:52,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 212 transitions, 1136 flow [2025-02-08 14:08:52,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 212 transitions, 1125 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-02-08 14:08:52,963 INFO L231 Difference]: Finished difference. Result has 117 places, 0 transitions, 0 flow [2025-02-08 14:08:52,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=117, PETRI_TRANSITIONS=0} [2025-02-08 14:08:52,965 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places. [2025-02-08 14:08:52,965 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 0 transitions, 0 flow [2025-02-08 14:08:52,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:08:52,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-02-08 14:08:52,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-02-08 14:08:52,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-02-08 14:08:52,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-02-08 14:08:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-02-08 14:08:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-02-08 14:08:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-02-08 14:08:52,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-02-08 14:08:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 14:08:52,979 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, 1, 1] [2025-02-08 14:08:52,987 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:08:52,987 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:08:52,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:08:52 BasicIcfg [2025-02-08 14:08:52,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:08:52,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:08:52,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:08:52,997 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:08:52,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:08:04" (3/4) ... [2025-02-08 14:08:52,998 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:08:53,005 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:08:53,005 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:08:53,005 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:08:53,009 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2025-02-08 14:08:53,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-02-08 14:08:53,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-08 14:08:53,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 14:08:53,073 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:08:53,073 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:08:53,073 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:08:53,074 INFO L158 Benchmark]: Toolchain (without parser) took 49413.56ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 107.1MB in the beginning and 3.7GB in the end (delta: -3.6GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2025-02-08 14:08:53,074 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory was 126.4MB in the beginning and 126.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:53,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.32ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 95.2MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:53,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.52ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 93.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:08:53,075 INFO L158 Benchmark]: Boogie Preprocessor took 39.08ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:53,075 INFO L158 Benchmark]: IcfgBuilder took 658.15ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 40.3MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-08 14:08:53,076 INFO L158 Benchmark]: TraceAbstraction took 48357.98ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 39.4MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. [2025-02-08 14:08:53,076 INFO L158 Benchmark]: Witness Printer took 77.39ms. Allocated memory is still 5.8GB. Free memory was 3.8GB in the beginning and 3.7GB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:08:53,077 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory was 126.4MB in the beginning and 126.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.32ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 95.2MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.52ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 93.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.08ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 658.15ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 40.3MB in the end (delta: 50.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 48357.98ms. Allocated memory was 142.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 39.4MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. * Witness Printer took 77.39ms. Allocated memory is still 5.8GB. Free memory was 3.8GB in the beginning and 3.7GB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 89]: 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: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 171 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 48.2s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 45.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2321 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2035 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4547 IncrementalHoareTripleChecker+Invalid, 4659 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 65 mSDtfsCounter, 4547 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 14:08:53,092 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