./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58f1358e24877c92a149b6121e272e93974801203e91da3c444aa78d712ada40 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:09:05,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:09:05,997 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:09:06,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:09:06,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:09:06,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:09:06,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:09:06,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:09:06,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:09:06,022 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:09:06,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:09:06,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:09:06,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:09:06,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:09:06,023 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:09:06,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:09:06,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:09:06,023 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:09:06,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:09:06,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:09:06,024 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:09:06,025 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:09:06,025 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:09:06,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:09:06,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:09:06,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:09:06,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:09:06,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:09:06,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:09:06,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:09:06,026 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 -> 58f1358e24877c92a149b6121e272e93974801203e91da3c444aa78d712ada40 [2025-02-08 14:09:06,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:09:06,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:09:06,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:09:06,310 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:09:06,311 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:09:06,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2025-02-08 14:09:07,524 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fec16e567/21464689c3e443a3b382fc7f13d8fb87/FLAG8aa3f1cc3 [2025-02-08 14:09:07,793 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:09:07,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2025-02-08 14:09:07,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fec16e567/21464689c3e443a3b382fc7f13d8fb87/FLAG8aa3f1cc3 [2025-02-08 14:09:07,845 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fec16e567/21464689c3e443a3b382fc7f13d8fb87 [2025-02-08 14:09:07,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:09:07,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:09:07,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:09:07,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:09:07,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:09:07,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:09:07" (1/1) ... [2025-02-08 14:09:07,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c292c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:07, skipping insertion in model container [2025-02-08 14:09:07,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:09:07" (1/1) ... [2025-02-08 14:09:07,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:09:08,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:09:08,014 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:09:08,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:09:08,049 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:09:08,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08 WrapperNode [2025-02-08 14:09:08,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:09:08,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:09:08,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:09:08,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:09:08,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,088 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 201 [2025-02-08 14:09:08,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:09:08,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:09:08,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:09:08,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:09:08,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,122 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 14:09:08,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,129 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:09:08,147 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:09:08,148 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:09:08,148 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:09:08,149 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (1/1) ... [2025-02-08 14:09:08,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:09:08,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:09:08,187 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 14:09:08,191 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 14:09:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:09:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:09:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:09:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:09:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:09:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:09:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:09:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:09:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:09:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:09:08,214 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 14:09:08,300 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:09:08,302 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:09:08,484 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-5: #t~ite2#1 := #t~ret1#1; [2025-02-08 14:09:08,484 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 14:09:08,484 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:09:08,484 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-8: havoc minus_#t~short22#1, minus_#t~short23#1, minus_~a#1, minus_~b#1; [2025-02-08 14:09:08,484 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-9: #t~ret1#1 := minus_#res#1; [2025-02-08 14:09:08,550 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-5: #t~ite5#1 := #t~ret4#1; [2025-02-08 14:09:08,550 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret4#1 && #t~ret4#1 <= 2147483647; [2025-02-08 14:09:08,551 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:09:08,551 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-8: havoc minus_#t~short22#1, minus_#t~short23#1, minus_~a#1, minus_~b#1; [2025-02-08 14:09:08,551 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-9: #t~ret4#1 := minus_#res#1; [2025-02-08 14:09:08,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-5: #t~ite8#1 := #t~ret7#1; [2025-02-08 14:09:08,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret7#1 && #t~ret7#1 <= 2147483647; [2025-02-08 14:09:08,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 14:09:08,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-8: havoc minus_#t~short22#1, minus_#t~short23#1, minus_~a#1, minus_~b#1; [2025-02-08 14:09:08,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-9: #t~ret7#1 := minus_#res#1; [2025-02-08 14:09:08,681 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:09:08,681 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:09:08,860 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:09:08,864 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:09:08,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:09:08 BoogieIcfgContainer [2025-02-08 14:09:08,864 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:09:08,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:09:08,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:09:08,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:09:08,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:09:07" (1/3) ... [2025-02-08 14:09:08,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e4e4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:09:08, skipping insertion in model container [2025-02-08 14:09:08,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:09:08" (2/3) ... [2025-02-08 14:09:08,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e4e4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:09:08, skipping insertion in model container [2025-02-08 14:09:08,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:09:08" (3/3) ... [2025-02-08 14:09:08,873 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2025-02-08 14:09:08,891 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:09:08,895 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-subst.wvr.c that has 4 procedures, 78 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-02-08 14:09:08,895 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:09:08,976 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:09:09,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 86 transitions, 193 flow [2025-02-08 14:09:09,065 INFO L124 PetriNetUnfolderBase]: 9/83 cut-off events. [2025-02-08 14:09:09,067 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:09:09,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 9/83 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 319 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2025-02-08 14:09:09,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 86 transitions, 193 flow [2025-02-08 14:09:09,077 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 177 flow [2025-02-08 14:09:09,085 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:09:09,096 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;@7a08e9fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:09:09,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 14:09:09,104 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:09:09,105 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2025-02-08 14:09:09,105 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:09:09,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:09,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:09,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:09,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash 306455484, now seen corresponding path program 1 times [2025-02-08 14:09:09,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:09,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573665408] [2025-02-08 14:09:09,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:09,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:09,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:09:09,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:09:09,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:09,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:09,346 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 14:09:09,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:09,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573665408] [2025-02-08 14:09:09,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573665408] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:09,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:09,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:09,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247067942] [2025-02-08 14:09:09,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:09,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:09,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:09,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:09,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:09,411 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 86 [2025-02-08 14:09:09,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:09,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:09,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 86 [2025-02-08 14:09:09,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:10,794 INFO L124 PetriNetUnfolderBase]: 8898/14287 cut-off events. [2025-02-08 14:09:10,794 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2025-02-08 14:09:10,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26664 conditions, 14287 events. 8898/14287 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 108541 event pairs, 2832 based on Foata normal form. 364/12039 useless extension candidates. Maximal degree in co-relation 25965. Up to 5486 conditions per place. [2025-02-08 14:09:10,933 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 87 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2025-02-08 14:09:10,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 130 transitions, 469 flow [2025-02-08 14:09:10,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:10,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2025-02-08 14:09:10,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7616279069767442 [2025-02-08 14:09:10,946 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 177 flow. Second operand 4 states and 262 transitions. [2025-02-08 14:09:10,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 130 transitions, 469 flow [2025-02-08 14:09:10,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 130 transitions, 454 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:09:10,963 INFO L231 Difference]: Finished difference. Result has 82 places, 82 transitions, 194 flow [2025-02-08 14:09:10,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=82, PETRI_TRANSITIONS=82} [2025-02-08 14:09:10,972 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2025-02-08 14:09:10,972 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 82 transitions, 194 flow [2025-02-08 14:09:10,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:10,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:10,973 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:10,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:09:10,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:10,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash 910185938, now seen corresponding path program 1 times [2025-02-08 14:09:10,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:10,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915212279] [2025-02-08 14:09:10,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:10,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:10,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:09:11,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:09:11,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:11,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:11,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:11,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915212279] [2025-02-08 14:09:11,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915212279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:11,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:11,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:11,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148385451] [2025-02-08 14:09:11,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:11,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:11,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:11,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:11,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:11,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 86 [2025-02-08 14:09:11,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:11,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:11,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 86 [2025-02-08 14:09:11,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:12,071 INFO L124 PetriNetUnfolderBase]: 6652/11909 cut-off events. [2025-02-08 14:09:12,071 INFO L125 PetriNetUnfolderBase]: For 1617/1635 co-relation queries the response was YES. [2025-02-08 14:09:12,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22930 conditions, 11909 events. 6652/11909 cut-off events. For 1617/1635 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 98096 event pairs, 1194 based on Foata normal form. 18/10454 useless extension candidates. Maximal degree in co-relation 12298. Up to 6549 conditions per place. [2025-02-08 14:09:12,156 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 59 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2025-02-08 14:09:12,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 104 transitions, 363 flow [2025-02-08 14:09:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:12,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2025-02-08 14:09:12,159 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7005813953488372 [2025-02-08 14:09:12,159 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 194 flow. Second operand 4 states and 241 transitions. [2025-02-08 14:09:12,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 104 transitions, 363 flow [2025-02-08 14:09:12,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 104 transitions, 363 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:09:12,207 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 196 flow [2025-02-08 14:09:12,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2025-02-08 14:09:12,208 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2025-02-08 14:09:12,208 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 196 flow [2025-02-08 14:09:12,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:12,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:12,209 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:12,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:09:12,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:12,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:12,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1849037216, now seen corresponding path program 1 times [2025-02-08 14:09:12,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:12,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958849674] [2025-02-08 14:09:12,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:12,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:12,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:09:12,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:09:12,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:12,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:12,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:12,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958849674] [2025-02-08 14:09:12,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958849674] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:12,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:12,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634096323] [2025-02-08 14:09:12,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:12,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:12,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:12,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:12,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:12,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 86 [2025-02-08 14:09:12,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:12,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:12,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 86 [2025-02-08 14:09:12,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:13,190 INFO L124 PetriNetUnfolderBase]: 6670/11763 cut-off events. [2025-02-08 14:09:13,190 INFO L125 PetriNetUnfolderBase]: For 2673/2691 co-relation queries the response was YES. [2025-02-08 14:09:13,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23004 conditions, 11763 events. 6670/11763 cut-off events. For 2673/2691 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 95077 event pairs, 1194 based on Foata normal form. 200/10490 useless extension candidates. Maximal degree in co-relation 12463. Up to 6731 conditions per place. [2025-02-08 14:09:13,283 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 60 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2025-02-08 14:09:13,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 365 flow [2025-02-08 14:09:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2025-02-08 14:09:13,287 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.688953488372093 [2025-02-08 14:09:13,287 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 196 flow. Second operand 4 states and 237 transitions. [2025-02-08 14:09:13,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 365 flow [2025-02-08 14:09:13,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 103 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:13,311 INFO L231 Difference]: Finished difference. Result has 84 places, 80 transitions, 193 flow [2025-02-08 14:09:13,312 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=84, PETRI_TRANSITIONS=80} [2025-02-08 14:09:13,314 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2025-02-08 14:09:13,314 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 193 flow [2025-02-08 14:09:13,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:13,314 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:13,314 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:13,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:09:13,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:13,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1358887323, now seen corresponding path program 1 times [2025-02-08 14:09:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944876618] [2025-02-08 14:09:13,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:13,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:09:13,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:09:13,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:13,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:13,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:13,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944876618] [2025-02-08 14:09:13,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944876618] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:13,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:13,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:13,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305719236] [2025-02-08 14:09:13,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:13,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:13,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:13,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:13,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:13,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 86 [2025-02-08 14:09:13,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:13,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:13,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 86 [2025-02-08 14:09:13,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:14,422 INFO L124 PetriNetUnfolderBase]: 11549/19361 cut-off events. [2025-02-08 14:09:14,422 INFO L125 PetriNetUnfolderBase]: For 3708/4033 co-relation queries the response was YES. [2025-02-08 14:09:14,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38220 conditions, 19361 events. 11549/19361 cut-off events. For 3708/4033 co-relation queries the response was YES. Maximal size of possible extension queue 1032. Compared 160789 event pairs, 3892 based on Foata normal form. 823/17079 useless extension candidates. Maximal degree in co-relation 26939. Up to 7143 conditions per place. [2025-02-08 14:09:14,542 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 88 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2025-02-08 14:09:14,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 129 transitions, 511 flow [2025-02-08 14:09:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 260 transitions. [2025-02-08 14:09:14,544 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7558139534883721 [2025-02-08 14:09:14,544 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 193 flow. Second operand 4 states and 260 transitions. [2025-02-08 14:09:14,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 129 transitions, 511 flow [2025-02-08 14:09:14,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 129 transitions, 506 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:14,550 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 216 flow [2025-02-08 14:09:14,550 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2025-02-08 14:09:14,551 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2025-02-08 14:09:14,551 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 216 flow [2025-02-08 14:09:14,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:14,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:14,551 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:14,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:09:14,551 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:14,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:14,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1485579308, now seen corresponding path program 1 times [2025-02-08 14:09:14,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:14,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939550089] [2025-02-08 14:09:14,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:14,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:14,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:09:14,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:09:14,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:14,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:14,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:14,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939550089] [2025-02-08 14:09:14,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939550089] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:14,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:14,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:14,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4102381] [2025-02-08 14:09:14,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:14,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:14,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:14,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:14,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:14,682 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 86 [2025-02-08 14:09:14,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 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 14:09:14,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:14,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 86 [2025-02-08 14:09:14,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:15,805 INFO L124 PetriNetUnfolderBase]: 11749/18696 cut-off events. [2025-02-08 14:09:15,805 INFO L125 PetriNetUnfolderBase]: For 4256/4929 co-relation queries the response was YES. [2025-02-08 14:09:15,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40026 conditions, 18696 events. 11749/18696 cut-off events. For 4256/4929 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 145505 event pairs, 1496 based on Foata normal form. 338/17152 useless extension candidates. Maximal degree in co-relation 22914. Up to 10142 conditions per place. [2025-02-08 14:09:15,888 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 86 selfloop transitions, 4 changer transitions 0/128 dead transitions. [2025-02-08 14:09:15,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 128 transitions, 520 flow [2025-02-08 14:09:15,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:15,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 303 transitions. [2025-02-08 14:09:15,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7046511627906977 [2025-02-08 14:09:15,890 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 216 flow. Second operand 5 states and 303 transitions. [2025-02-08 14:09:15,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 128 transitions, 520 flow [2025-02-08 14:09:15,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 128 transitions, 520 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:09:15,920 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 222 flow [2025-02-08 14:09:15,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2025-02-08 14:09:15,922 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-02-08 14:09:15,922 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 222 flow [2025-02-08 14:09:15,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 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 14:09:15,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:15,923 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:15,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:09:15,923 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:15,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:15,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1485578315, now seen corresponding path program 1 times [2025-02-08 14:09:15,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:15,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785516566] [2025-02-08 14:09:15,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:15,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:15,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:09:15,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:09:15,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:15,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:15,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:15,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785516566] [2025-02-08 14:09:15,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785516566] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:15,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:15,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:15,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344709321] [2025-02-08 14:09:15,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:15,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:15,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:15,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:15,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:15,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 86 [2025-02-08 14:09:15,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:15,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:15,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 86 [2025-02-08 14:09:15,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:16,985 INFO L124 PetriNetUnfolderBase]: 9478/16710 cut-off events. [2025-02-08 14:09:16,985 INFO L125 PetriNetUnfolderBase]: For 5851/6393 co-relation queries the response was YES. [2025-02-08 14:09:17,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35110 conditions, 16710 events. 9478/16710 cut-off events. For 5851/6393 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 143495 event pairs, 4140 based on Foata normal form. 516/15564 useless extension candidates. Maximal degree in co-relation 19835. Up to 7290 conditions per place. [2025-02-08 14:09:17,080 INFO L140 encePairwiseOnDemand]: 82/86 looper letters, 88 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2025-02-08 14:09:17,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 129 transitions, 528 flow [2025-02-08 14:09:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 257 transitions. [2025-02-08 14:09:17,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.747093023255814 [2025-02-08 14:09:17,081 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 222 flow. Second operand 4 states and 257 transitions. [2025-02-08 14:09:17,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 129 transitions, 528 flow [2025-02-08 14:09:17,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 129 transitions, 523 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:17,114 INFO L231 Difference]: Finished difference. Result has 90 places, 79 transitions, 217 flow [2025-02-08 14:09:17,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=90, PETRI_TRANSITIONS=79} [2025-02-08 14:09:17,115 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-02-08 14:09:17,115 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 79 transitions, 217 flow [2025-02-08 14:09:17,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:17,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:17,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:17,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:09:17,116 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:17,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:17,116 INFO L85 PathProgramCache]: Analyzing trace with hash -824165397, now seen corresponding path program 1 times [2025-02-08 14:09:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:17,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565973229] [2025-02-08 14:09:17,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:17,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:17,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:09:17,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:09:17,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:17,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:17,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565973229] [2025-02-08 14:09:17,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565973229] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:17,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:17,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:17,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606712102] [2025-02-08 14:09:17,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:17,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:17,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:17,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:17,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:17,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 86 [2025-02-08 14:09:17,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 79 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:17,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:17,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 86 [2025-02-08 14:09:17,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:18,157 INFO L124 PetriNetUnfolderBase]: 8535/15842 cut-off events. [2025-02-08 14:09:18,157 INFO L125 PetriNetUnfolderBase]: For 4921/5177 co-relation queries the response was YES. [2025-02-08 14:09:18,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33016 conditions, 15842 events. 8535/15842 cut-off events. For 4921/5177 co-relation queries the response was YES. Maximal size of possible extension queue 852. Compared 140641 event pairs, 1500 based on Foata normal form. 256/14464 useless extension candidates. Maximal degree in co-relation 22973. Up to 8632 conditions per place. [2025-02-08 14:09:18,232 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 60 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2025-02-08 14:09:18,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 101 transitions, 407 flow [2025-02-08 14:09:18,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2025-02-08 14:09:18,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6976744186046512 [2025-02-08 14:09:18,236 INFO L175 Difference]: Start difference. First operand has 90 places, 79 transitions, 217 flow. Second operand 4 states and 240 transitions. [2025-02-08 14:09:18,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 101 transitions, 407 flow [2025-02-08 14:09:18,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 101 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:18,277 INFO L231 Difference]: Finished difference. Result has 90 places, 78 transitions, 214 flow [2025-02-08 14:09:18,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=90, PETRI_TRANSITIONS=78} [2025-02-08 14:09:18,278 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-02-08 14:09:18,278 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 78 transitions, 214 flow [2025-02-08 14:09:18,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:18,278 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:18,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:18,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:09:18,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:18,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:18,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1191682243, now seen corresponding path program 1 times [2025-02-08 14:09:18,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:18,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799895430] [2025-02-08 14:09:18,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:18,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:18,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:09:18,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:09:18,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:18,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:18,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:18,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799895430] [2025-02-08 14:09:18,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799895430] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:18,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:18,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:18,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022031611] [2025-02-08 14:09:18,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:18,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:18,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:18,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:18,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:18,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 86 [2025-02-08 14:09:18,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 78 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:18,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:18,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 86 [2025-02-08 14:09:18,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:19,240 INFO L124 PetriNetUnfolderBase]: 11507/18159 cut-off events. [2025-02-08 14:09:19,240 INFO L125 PetriNetUnfolderBase]: For 5544/6234 co-relation queries the response was YES. [2025-02-08 14:09:19,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39990 conditions, 18159 events. 11507/18159 cut-off events. For 5544/6234 co-relation queries the response was YES. Maximal size of possible extension queue 929. Compared 139528 event pairs, 1479 based on Foata normal form. 355/17116 useless extension candidates. Maximal degree in co-relation 25610. Up to 6542 conditions per place. [2025-02-08 14:09:19,341 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 107 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2025-02-08 14:09:19,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 150 transitions, 637 flow [2025-02-08 14:09:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:09:19,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:09:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 350 transitions. [2025-02-08 14:09:19,342 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6782945736434108 [2025-02-08 14:09:19,342 INFO L175 Difference]: Start difference. First operand has 90 places, 78 transitions, 214 flow. Second operand 6 states and 350 transitions. [2025-02-08 14:09:19,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 150 transitions, 637 flow [2025-02-08 14:09:19,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 150 transitions, 631 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:19,368 INFO L231 Difference]: Finished difference. Result has 93 places, 78 transitions, 232 flow [2025-02-08 14:09:19,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=93, PETRI_TRANSITIONS=78} [2025-02-08 14:09:19,369 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2025-02-08 14:09:19,369 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 78 transitions, 232 flow [2025-02-08 14:09:19,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:19,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:19,369 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:19,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:09:19,369 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:19,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash -869698591, now seen corresponding path program 1 times [2025-02-08 14:09:19,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:19,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417632757] [2025-02-08 14:09:19,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:19,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:19,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:09:19,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:09:19,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:19,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:19,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:19,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417632757] [2025-02-08 14:09:19,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417632757] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:19,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:19,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:19,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296355664] [2025-02-08 14:09:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:19,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:19,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:19,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:19,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:19,442 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 86 [2025-02-08 14:09:19,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 78 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:19,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:19,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 86 [2025-02-08 14:09:19,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:20,118 INFO L124 PetriNetUnfolderBase]: 8388/15328 cut-off events. [2025-02-08 14:09:20,118 INFO L125 PetriNetUnfolderBase]: For 9547/10808 co-relation queries the response was YES. [2025-02-08 14:09:20,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33053 conditions, 15328 events. 8388/15328 cut-off events. For 9547/10808 co-relation queries the response was YES. Maximal size of possible extension queue 827. Compared 134879 event pairs, 2321 based on Foata normal form. 1499/14564 useless extension candidates. Maximal degree in co-relation 23345. Up to 7172 conditions per place. [2025-02-08 14:09:20,196 INFO L140 encePairwiseOnDemand]: 82/86 looper letters, 63 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2025-02-08 14:09:20,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 100 transitions, 449 flow [2025-02-08 14:09:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2025-02-08 14:09:20,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.688953488372093 [2025-02-08 14:09:20,197 INFO L175 Difference]: Start difference. First operand has 93 places, 78 transitions, 232 flow. Second operand 4 states and 237 transitions. [2025-02-08 14:09:20,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 100 transitions, 449 flow [2025-02-08 14:09:20,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 439 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:20,205 INFO L231 Difference]: Finished difference. Result has 91 places, 76 transitions, 226 flow [2025-02-08 14:09:20,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2025-02-08 14:09:20,206 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-02-08 14:09:20,206 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 226 flow [2025-02-08 14:09:20,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:20,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:20,206 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:20,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:09:20,206 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:20,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:20,207 INFO L85 PathProgramCache]: Analyzing trace with hash 220646271, now seen corresponding path program 1 times [2025-02-08 14:09:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:20,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858788656] [2025-02-08 14:09:20,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:20,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:20,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:09:20,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:09:20,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:20,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:20,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:20,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858788656] [2025-02-08 14:09:20,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858788656] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:20,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:20,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961981539] [2025-02-08 14:09:20,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:20,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:20,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:20,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:20,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:20,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 86 [2025-02-08 14:09:20,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:20,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:20,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 86 [2025-02-08 14:09:20,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:21,050 INFO L124 PetriNetUnfolderBase]: 8554/15542 cut-off events. [2025-02-08 14:09:21,051 INFO L125 PetriNetUnfolderBase]: For 7663/8515 co-relation queries the response was YES. [2025-02-08 14:09:21,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34478 conditions, 15542 events. 8554/15542 cut-off events. For 7663/8515 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 134607 event pairs, 1501 based on Foata normal form. 933/15202 useless extension candidates. Maximal degree in co-relation 24576. Up to 8881 conditions per place. [2025-02-08 14:09:21,107 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 63 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2025-02-08 14:09:21,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 99 transitions, 429 flow [2025-02-08 14:09:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:21,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2025-02-08 14:09:21,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2025-02-08 14:09:21,109 INFO L175 Difference]: Start difference. First operand has 91 places, 76 transitions, 226 flow. Second operand 4 states and 236 transitions. [2025-02-08 14:09:21,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 99 transitions, 429 flow [2025-02-08 14:09:21,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 99 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:21,148 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 223 flow [2025-02-08 14:09:21,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=223, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2025-02-08 14:09:21,149 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-02-08 14:09:21,149 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 223 flow [2025-02-08 14:09:21,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:21,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:21,149 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:21,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:09:21,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:21,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:21,150 INFO L85 PathProgramCache]: Analyzing trace with hash -793866661, now seen corresponding path program 1 times [2025-02-08 14:09:21,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:21,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125041501] [2025-02-08 14:09:21,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:21,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:21,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:09:21,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:09:21,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:21,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:21,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:21,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125041501] [2025-02-08 14:09:21,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125041501] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:21,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:21,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:09:21,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727986735] [2025-02-08 14:09:21,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:21,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:21,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:21,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:21,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:21,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 86 [2025-02-08 14:09:21,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 223 flow. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:21,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:21,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 86 [2025-02-08 14:09:21,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:22,270 INFO L124 PetriNetUnfolderBase]: 11435/17914 cut-off events. [2025-02-08 14:09:22,270 INFO L125 PetriNetUnfolderBase]: For 6134/6466 co-relation queries the response was YES. [2025-02-08 14:09:22,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42710 conditions, 17914 events. 11435/17914 cut-off events. For 6134/6466 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 135890 event pairs, 4123 based on Foata normal form. 574/17198 useless extension candidates. Maximal degree in co-relation 24864. Up to 7532 conditions per place. [2025-02-08 14:09:22,393 INFO L140 encePairwiseOnDemand]: 80/86 looper letters, 135 selfloop transitions, 7 changer transitions 0/173 dead transitions. [2025-02-08 14:09:22,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 173 transitions, 779 flow [2025-02-08 14:09:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:09:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:09:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 378 transitions. [2025-02-08 14:09:22,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7325581395348837 [2025-02-08 14:09:22,395 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 223 flow. Second operand 6 states and 378 transitions. [2025-02-08 14:09:22,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 173 transitions, 779 flow [2025-02-08 14:09:22,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 173 transitions, 767 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:09:22,483 INFO L231 Difference]: Finished difference. Result has 93 places, 76 transitions, 241 flow [2025-02-08 14:09:22,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=93, PETRI_TRANSITIONS=76} [2025-02-08 14:09:22,484 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2025-02-08 14:09:22,485 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 76 transitions, 241 flow [2025-02-08 14:09:22,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:22,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:22,485 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:22,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:09:22,485 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:22,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:22,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1190851971, now seen corresponding path program 1 times [2025-02-08 14:09:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:22,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455289990] [2025-02-08 14:09:22,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:22,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:22,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:09:22,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:09:22,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:22,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:22,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:22,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455289990] [2025-02-08 14:09:22,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455289990] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:22,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:22,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:09:22,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391144629] [2025-02-08 14:09:22,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:22,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:22,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:22,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:22,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:22,552 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 86 [2025-02-08 14:09:22,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 76 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:22,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:22,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 86 [2025-02-08 14:09:22,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:23,513 INFO L124 PetriNetUnfolderBase]: 6800/13266 cut-off events. [2025-02-08 14:09:23,513 INFO L125 PetriNetUnfolderBase]: For 9983/10668 co-relation queries the response was YES. [2025-02-08 14:09:23,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28842 conditions, 13266 events. 6800/13266 cut-off events. For 9983/10668 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 120974 event pairs, 2321 based on Foata normal form. 685/12272 useless extension candidates. Maximal degree in co-relation 20584. Up to 4982 conditions per place. [2025-02-08 14:09:23,598 INFO L140 encePairwiseOnDemand]: 83/86 looper letters, 63 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2025-02-08 14:09:23,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 472 flow [2025-02-08 14:09:23,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:23,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2025-02-08 14:09:23,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6918604651162791 [2025-02-08 14:09:23,600 INFO L175 Difference]: Start difference. First operand has 93 places, 76 transitions, 241 flow. Second operand 4 states and 238 transitions. [2025-02-08 14:09:23,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 100 transitions, 472 flow [2025-02-08 14:09:23,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 100 transitions, 454 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:23,605 INFO L231 Difference]: Finished difference. Result has 93 places, 75 transitions, 233 flow [2025-02-08 14:09:23,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=93, PETRI_TRANSITIONS=75} [2025-02-08 14:09:23,606 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2025-02-08 14:09:23,606 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 75 transitions, 233 flow [2025-02-08 14:09:23,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:23,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:23,606 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:23,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:09:23,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:23,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:23,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1749900627, now seen corresponding path program 1 times [2025-02-08 14:09:23,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:23,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58443582] [2025-02-08 14:09:23,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:23,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:23,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:09:23,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:09:23,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:23,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:23,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:23,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58443582] [2025-02-08 14:09:23,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58443582] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:23,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:23,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:23,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617622197] [2025-02-08 14:09:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:23,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:23,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:23,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:23,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:23,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 86 [2025-02-08 14:09:23,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 75 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 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 14:09:23,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:23,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 86 [2025-02-08 14:09:23,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:25,007 INFO L124 PetriNetUnfolderBase]: 11876/18444 cut-off events. [2025-02-08 14:09:25,007 INFO L125 PetriNetUnfolderBase]: For 12074/13030 co-relation queries the response was YES. [2025-02-08 14:09:25,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44335 conditions, 18444 events. 11876/18444 cut-off events. For 12074/13030 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 137506 event pairs, 1393 based on Foata normal form. 956/18049 useless extension candidates. Maximal degree in co-relation 31523. Up to 10424 conditions per place. [2025-02-08 14:09:25,145 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 90 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2025-02-08 14:09:25,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 124 transitions, 589 flow [2025-02-08 14:09:25,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 301 transitions. [2025-02-08 14:09:25,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-02-08 14:09:25,147 INFO L175 Difference]: Start difference. First operand has 93 places, 75 transitions, 233 flow. Second operand 5 states and 301 transitions. [2025-02-08 14:09:25,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 124 transitions, 589 flow [2025-02-08 14:09:25,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 124 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:25,192 INFO L231 Difference]: Finished difference. Result has 94 places, 74 transitions, 236 flow [2025-02-08 14:09:25,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=94, PETRI_TRANSITIONS=74} [2025-02-08 14:09:25,193 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2025-02-08 14:09:25,193 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 74 transitions, 236 flow [2025-02-08 14:09:25,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.8) internal successors, (224), 5 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 14:09:25,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:25,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:25,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:09:25,194 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:25,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1749899634, now seen corresponding path program 1 times [2025-02-08 14:09:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839667088] [2025-02-08 14:09:25,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:25,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:25,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:09:25,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:09:25,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:25,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:25,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839667088] [2025-02-08 14:09:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839667088] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:25,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966472860] [2025-02-08 14:09:25,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:25,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:25,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:25,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:25,247 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 86 [2025-02-08 14:09:25,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 74 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:25,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:25,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 86 [2025-02-08 14:09:25,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:26,156 INFO L124 PetriNetUnfolderBase]: 9541/16139 cut-off events. [2025-02-08 14:09:26,156 INFO L125 PetriNetUnfolderBase]: For 11860/12614 co-relation queries the response was YES. [2025-02-08 14:09:26,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38214 conditions, 16139 events. 9541/16139 cut-off events. For 11860/12614 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 131632 event pairs, 4108 based on Foata normal form. 1003/15829 useless extension candidates. Maximal degree in co-relation 27231. Up to 7227 conditions per place. [2025-02-08 14:09:26,222 INFO L140 encePairwiseOnDemand]: 82/86 looper letters, 92 selfloop transitions, 3 changer transitions 0/125 dead transitions. [2025-02-08 14:09:26,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 125 transitions, 592 flow [2025-02-08 14:09:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 255 transitions. [2025-02-08 14:09:26,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7412790697674418 [2025-02-08 14:09:26,223 INFO L175 Difference]: Start difference. First operand has 94 places, 74 transitions, 236 flow. Second operand 4 states and 255 transitions. [2025-02-08 14:09:26,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 125 transitions, 592 flow [2025-02-08 14:09:26,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 125 transitions, 587 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:26,251 INFO L231 Difference]: Finished difference. Result has 94 places, 73 transitions, 231 flow [2025-02-08 14:09:26,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=94, PETRI_TRANSITIONS=73} [2025-02-08 14:09:26,252 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2025-02-08 14:09:26,252 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 73 transitions, 231 flow [2025-02-08 14:09:26,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:26,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:26,252 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:26,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:09:26,252 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:26,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:26,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1587655970, now seen corresponding path program 1 times [2025-02-08 14:09:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249969362] [2025-02-08 14:09:26,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:26,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:26,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:09:26,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:09:26,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:26,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:26,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:26,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249969362] [2025-02-08 14:09:26,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249969362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:26,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:26,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:26,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041485546] [2025-02-08 14:09:26,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:26,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:26,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:26,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:26,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:26,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 86 [2025-02-08 14:09:26,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 73 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:26,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:26,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 86 [2025-02-08 14:09:26,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:27,280 INFO L124 PetriNetUnfolderBase]: 11627/17892 cut-off events. [2025-02-08 14:09:27,280 INFO L125 PetriNetUnfolderBase]: For 12644/13618 co-relation queries the response was YES. [2025-02-08 14:09:27,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44420 conditions, 17892 events. 11627/17892 cut-off events. For 12644/13618 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 131710 event pairs, 1375 based on Foata normal form. 974/17616 useless extension candidates. Maximal degree in co-relation 31595. Up to 6724 conditions per place. [2025-02-08 14:09:27,375 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 112 selfloop transitions, 7 changer transitions 0/148 dead transitions. [2025-02-08 14:09:27,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 721 flow [2025-02-08 14:09:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:09:27,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:09:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 347 transitions. [2025-02-08 14:09:27,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6724806201550387 [2025-02-08 14:09:27,377 INFO L175 Difference]: Start difference. First operand has 94 places, 73 transitions, 231 flow. Second operand 6 states and 347 transitions. [2025-02-08 14:09:27,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 721 flow [2025-02-08 14:09:27,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 148 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:09:27,403 INFO L231 Difference]: Finished difference. Result has 97 places, 73 transitions, 247 flow [2025-02-08 14:09:27,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=97, PETRI_TRANSITIONS=73} [2025-02-08 14:09:27,403 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 15 predicate places. [2025-02-08 14:09:27,403 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 73 transitions, 247 flow [2025-02-08 14:09:27,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:27,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:27,404 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:27,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:09:27,404 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:27,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1948378208, now seen corresponding path program 1 times [2025-02-08 14:09:27,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:27,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783627876] [2025-02-08 14:09:27,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:27,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:27,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:09:27,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:09:27,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:27,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:27,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:27,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783627876] [2025-02-08 14:09:27,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783627876] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:27,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:27,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:27,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914998901] [2025-02-08 14:09:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:27,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:27,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:27,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:27,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:27,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 86 [2025-02-08 14:09:27,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 73 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:27,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:27,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 86 [2025-02-08 14:09:27,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:28,631 INFO L124 PetriNetUnfolderBase]: 12369/21796 cut-off events. [2025-02-08 14:09:28,631 INFO L125 PetriNetUnfolderBase]: For 23346/25499 co-relation queries the response was YES. [2025-02-08 14:09:28,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52280 conditions, 21796 events. 12369/21796 cut-off events. For 23346/25499 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 194110 event pairs, 5818 based on Foata normal form. 1953/21382 useless extension candidates. Maximal degree in co-relation 37179. Up to 9725 conditions per place. [2025-02-08 14:09:28,709 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 96 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2025-02-08 14:09:28,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 129 transitions, 677 flow [2025-02-08 14:09:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2025-02-08 14:09:28,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7383720930232558 [2025-02-08 14:09:28,710 INFO L175 Difference]: Start difference. First operand has 97 places, 73 transitions, 247 flow. Second operand 4 states and 254 transitions. [2025-02-08 14:09:28,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 129 transitions, 677 flow [2025-02-08 14:09:28,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 129 transitions, 663 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:28,719 INFO L231 Difference]: Finished difference. Result has 99 places, 74 transitions, 260 flow [2025-02-08 14:09:28,719 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2025-02-08 14:09:28,720 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 17 predicate places. [2025-02-08 14:09:28,720 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 260 flow [2025-02-08 14:09:28,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:28,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:28,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:28,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:09:28,720 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:28,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1948379201, now seen corresponding path program 1 times [2025-02-08 14:09:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:28,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188849635] [2025-02-08 14:09:28,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:28,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:09:28,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:09:28,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:28,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188849635] [2025-02-08 14:09:28,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188849635] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:28,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:28,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141021097] [2025-02-08 14:09:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:28,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:28,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:28,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:28,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:28,784 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 86 [2025-02-08 14:09:28,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 45.2) internal successors, (226), 5 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 14:09:28,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:28,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 86 [2025-02-08 14:09:28,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:29,868 INFO L124 PetriNetUnfolderBase]: 14751/23421 cut-off events. [2025-02-08 14:09:29,868 INFO L125 PetriNetUnfolderBase]: For 24770/27532 co-relation queries the response was YES. [2025-02-08 14:09:29,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61322 conditions, 23421 events. 14751/23421 cut-off events. For 24770/27532 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 186346 event pairs, 2338 based on Foata normal form. 2437/24295 useless extension candidates. Maximal degree in co-relation 43533. Up to 12647 conditions per place. [2025-02-08 14:09:30,062 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 95 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2025-02-08 14:09:30,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 126 transitions, 672 flow [2025-02-08 14:09:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 299 transitions. [2025-02-08 14:09:30,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6953488372093023 [2025-02-08 14:09:30,064 INFO L175 Difference]: Start difference. First operand has 99 places, 74 transitions, 260 flow. Second operand 5 states and 299 transitions. [2025-02-08 14:09:30,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 126 transitions, 672 flow [2025-02-08 14:09:30,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 126 transitions, 669 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:30,143 INFO L231 Difference]: Finished difference. Result has 102 places, 74 transitions, 270 flow [2025-02-08 14:09:30,143 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=270, PETRI_PLACES=102, PETRI_TRANSITIONS=74} [2025-02-08 14:09:30,143 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 20 predicate places. [2025-02-08 14:09:30,143 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 74 transitions, 270 flow [2025-02-08 14:09:30,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 5 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 14:09:30,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:30,144 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:30,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:09:30,144 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:30,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:30,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1403582988, now seen corresponding path program 1 times [2025-02-08 14:09:30,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:30,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648661428] [2025-02-08 14:09:30,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:30,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:09:30,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:09:30,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:30,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:30,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:30,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648661428] [2025-02-08 14:09:30,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648661428] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:30,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:30,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:09:30,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242048151] [2025-02-08 14:09:30,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:30,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:09:30,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:30,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:09:30,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:09:30,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 86 [2025-02-08 14:09:30,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 74 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:30,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:30,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 86 [2025-02-08 14:09:30,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:31,529 INFO L124 PetriNetUnfolderBase]: 15473/24689 cut-off events. [2025-02-08 14:09:31,529 INFO L125 PetriNetUnfolderBase]: For 26083/28042 co-relation queries the response was YES. [2025-02-08 14:09:31,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65698 conditions, 24689 events. 15473/24689 cut-off events. For 26083/28042 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 200096 event pairs, 6226 based on Foata normal form. 2208/25911 useless extension candidates. Maximal degree in co-relation 46771. Up to 10579 conditions per place. [2025-02-08 14:09:31,669 INFO L140 encePairwiseOnDemand]: 82/86 looper letters, 84 selfloop transitions, 4 changer transitions 12/128 dead transitions. [2025-02-08 14:09:31,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 128 transitions, 677 flow [2025-02-08 14:09:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:09:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:09:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2025-02-08 14:09:31,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7354651162790697 [2025-02-08 14:09:31,670 INFO L175 Difference]: Start difference. First operand has 102 places, 74 transitions, 270 flow. Second operand 4 states and 253 transitions. [2025-02-08 14:09:31,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 128 transitions, 677 flow [2025-02-08 14:09:31,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 128 transitions, 670 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:09:31,703 INFO L231 Difference]: Finished difference. Result has 101 places, 69 transitions, 258 flow [2025-02-08 14:09:31,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=101, PETRI_TRANSITIONS=69} [2025-02-08 14:09:31,704 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 19 predicate places. [2025-02-08 14:09:31,704 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 69 transitions, 258 flow [2025-02-08 14:09:31,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:31,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:31,704 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:31,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:09:31,704 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:31,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:31,705 INFO L85 PathProgramCache]: Analyzing trace with hash -270212504, now seen corresponding path program 1 times [2025-02-08 14:09:31,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:31,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779818725] [2025-02-08 14:09:31,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:31,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:31,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:09:31,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:09:31,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:31,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:31,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:31,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779818725] [2025-02-08 14:09:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779818725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:31,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:31,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:09:31,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116822423] [2025-02-08 14:09:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:31,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:09:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:31,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:09:31,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:09:31,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 86 [2025-02-08 14:09:31,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 69 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:31,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:31,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 86 [2025-02-08 14:09:31,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:32,882 INFO L124 PetriNetUnfolderBase]: 12739/20666 cut-off events. [2025-02-08 14:09:32,883 INFO L125 PetriNetUnfolderBase]: For 26273/28376 co-relation queries the response was YES. [2025-02-08 14:09:32,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56867 conditions, 20666 events. 12739/20666 cut-off events. For 26273/28376 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 166688 event pairs, 1108 based on Foata normal form. 2805/22535 useless extension candidates. Maximal degree in co-relation 40381. Up to 6591 conditions per place. [2025-02-08 14:09:33,022 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 111 selfloop transitions, 4 changer transitions 7/147 dead transitions. [2025-02-08 14:09:33,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 147 transitions, 833 flow [2025-02-08 14:09:33,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:09:33,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:09:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 340 transitions. [2025-02-08 14:09:33,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6589147286821705 [2025-02-08 14:09:33,024 INFO L175 Difference]: Start difference. First operand has 101 places, 69 transitions, 258 flow. Second operand 6 states and 340 transitions. [2025-02-08 14:09:33,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 147 transitions, 833 flow [2025-02-08 14:09:33,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 147 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:09:33,115 INFO L231 Difference]: Finished difference. Result has 101 places, 62 transitions, 241 flow [2025-02-08 14:09:33,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=101, PETRI_TRANSITIONS=62} [2025-02-08 14:09:33,116 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 19 predicate places. [2025-02-08 14:09:33,116 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 62 transitions, 241 flow [2025-02-08 14:09:33,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.833333333333336) internal successors, (251), 6 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:33,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:09:33,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:09:33,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:09:33,116 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-02-08 14:09:33,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:09:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1132036486, now seen corresponding path program 1 times [2025-02-08 14:09:33,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:09:33,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031110834] [2025-02-08 14:09:33,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:09:33,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:09:33,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:09:33,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:09:33,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:09:33,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:09:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:09:33,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:09:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031110834] [2025-02-08 14:09:33,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031110834] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:09:33,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:09:33,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:09:33,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277696751] [2025-02-08 14:09:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:09:33,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:09:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:09:33,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:09:33,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:09:33,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 86 [2025-02-08 14:09:33,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 62 transitions, 241 flow. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:33,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:09:33,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 86 [2025-02-08 14:09:33,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:09:33,883 INFO L124 PetriNetUnfolderBase]: 5758/9122 cut-off events. [2025-02-08 14:09:33,884 INFO L125 PetriNetUnfolderBase]: For 12324/13314 co-relation queries the response was YES. [2025-02-08 14:09:33,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28199 conditions, 9122 events. 5758/9122 cut-off events. For 12324/13314 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 65001 event pairs, 1108 based on Foata normal form. 1341/10229 useless extension candidates. Maximal degree in co-relation 23790. Up to 2496 conditions per place. [2025-02-08 14:09:33,910 INFO L140 encePairwiseOnDemand]: 82/86 looper letters, 0 selfloop transitions, 0 changer transitions 137/137 dead transitions. [2025-02-08 14:09:33,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 137 transitions, 785 flow [2025-02-08 14:09:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:09:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:09:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 296 transitions. [2025-02-08 14:09:33,911 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6883720930232559 [2025-02-08 14:09:33,911 INFO L175 Difference]: Start difference. First operand has 101 places, 62 transitions, 241 flow. Second operand 5 states and 296 transitions. [2025-02-08 14:09:33,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 137 transitions, 785 flow [2025-02-08 14:09:33,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 137 transitions, 772 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-08 14:09:33,948 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2025-02-08 14:09:33,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2025-02-08 14:09:33,949 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-02-08 14:09:33,949 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2025-02-08 14:09:33,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-02-08 14:09:33,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-02-08 14:09:33,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-02-08 14:09:33,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 14:09:33,953 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] [2025-02-08 14:09:33,956 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:09:33,956 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:09:33,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:09:33 BasicIcfg [2025-02-08 14:09:33,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:09:33,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:09:33,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:09:33,960 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:09:33,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:09:08" (3/4) ... [2025-02-08 14:09:33,962 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:09:33,964 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:09:33,964 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:09:33,964 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 14:09:33,966 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2025-02-08 14:09:33,967 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-02-08 14:09:33,967 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-08 14:09:33,967 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 14:09:34,019 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:09:34,019 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:09:34,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:09:34,020 INFO L158 Benchmark]: Toolchain (without parser) took 26171.41ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 123.2MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 569.1MB. Max. memory is 16.1GB. [2025-02-08 14:09:34,020 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:09:34,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.82ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 111.3MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:09:34,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.06ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 109.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:09:34,021 INFO L158 Benchmark]: Boogie Preprocessor took 57.63ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 107.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:09:34,021 INFO L158 Benchmark]: IcfgBuilder took 716.73ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 63.0MB in the end (delta: 44.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 14:09:34,021 INFO L158 Benchmark]: TraceAbstraction took 25093.77ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 62.4MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2025-02-08 14:09:34,021 INFO L158 Benchmark]: Witness Printer took 59.45ms. Allocated memory is still 3.2GB. Free memory was 2.6GB in the beginning and 2.5GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:09:34,022 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.82ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 111.3MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.06ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 109.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.63ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 107.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 716.73ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 63.0MB in the end (delta: 44.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25093.77ms. Allocated memory was 167.8MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 62.4MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 59.45ms. Allocated memory is still 3.2GB. Free memory was 2.6GB in the beginning and 2.5GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 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: 24.9s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2006 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1727 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3793 IncrementalHoareTripleChecker+Invalid, 3894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 78 mSDtfsCounter, 3793 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=17, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 14:09:34,038 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