./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --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/goblint-regression/28-race_reach_37-indirect_racing.i -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 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:06:01,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:06:01,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:06:01,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:06:01,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:06:01,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:06:01,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:06:01,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:06:01,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:06:01,137 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:06:01,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:06:01,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:06:01,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:06:01,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:06:01,137 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:06:01,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:06:01,138 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:06:01,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:06:01,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:06:01,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:06:01,139 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 -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2025-02-08 14:06:01,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:06:01,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:06:01,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:06:01,360 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:06:01,360 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:06:01,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2025-02-08 14:06:02,574 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89617f0bc/9e5c5675904f44b3a597107bce22fe49/FLAG75a8b79a2 [2025-02-08 14:06:02,847 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:06:02,850 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2025-02-08 14:06:02,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89617f0bc/9e5c5675904f44b3a597107bce22fe49/FLAG75a8b79a2 [2025-02-08 14:06:03,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89617f0bc/9e5c5675904f44b3a597107bce22fe49 [2025-02-08 14:06:03,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:06:03,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:06:03,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:06:03,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:06:03,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:06:03,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a218d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03, skipping insertion in model container [2025-02-08 14:06:03,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:06:03,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:06:03,435 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:06:03,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:06:03,523 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:06:03,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03 WrapperNode [2025-02-08 14:06:03,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:06:03,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:06:03,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:06:03,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:06:03,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,554 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2025-02-08 14:06:03,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:06:03,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:06:03,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:06:03,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:06:03,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,577 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 2, 5, 6, 5]. 30 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 5, 1, 5]. The 3 writes are split as follows [0, 1, 0, 2, 0]. [2025-02-08 14:06:03,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,583 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:06:03,587 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:06:03,587 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:06:03,587 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:06:03,588 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (1/1) ... [2025-02-08 14:06:03,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:06:03,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:03,609 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 14:06:03,614 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 14:06:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:06:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:06:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:06:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:06:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 14:06:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:06:03,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:06:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:06:03,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:06:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:06:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:06:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:06:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 14:06:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:06:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:06:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:06:03,632 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 14:06:03,741 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:06:03,744 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:06:03,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-08 14:06:03,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L709-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-08 14:06:03,915 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:06:03,915 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:06:04,004 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:06:04,005 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:06:04,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:06:04 BoogieIcfgContainer [2025-02-08 14:06:04,005 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:06:04,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:06:04,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:06:04,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:06:04,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:06:03" (1/3) ... [2025-02-08 14:06:04,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bd6adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:06:04, skipping insertion in model container [2025-02-08 14:06:04,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:03" (2/3) ... [2025-02-08 14:06:04,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bd6adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:06:04, skipping insertion in model container [2025-02-08 14:06:04,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:06:04" (3/3) ... [2025-02-08 14:06:04,011 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2025-02-08 14:06:04,021 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:06:04,022 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_37-indirect_racing.i that has 2 procedures, 51 locations, 1 initial locations, 6 loop locations, and 8 error locations. [2025-02-08 14:06:04,022 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:06:04,051 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 14:06:04,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 60 transitions, 127 flow [2025-02-08 14:06:04,116 INFO L124 PetriNetUnfolderBase]: 11/73 cut-off events. [2025-02-08 14:06:04,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:06:04,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 11/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 211 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. [2025-02-08 14:06:04,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 60 transitions, 127 flow [2025-02-08 14:06:04,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 59 transitions, 125 flow [2025-02-08 14:06:04,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:06:04,139 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;@68da4546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:06:04,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-02-08 14:06:04,144 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:06:04,144 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:06:04,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:06:04,144 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:04,145 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:06:04,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:06:04,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:04,149 INFO L85 PathProgramCache]: Analyzing trace with hash 304376467, now seen corresponding path program 1 times [2025-02-08 14:06:04,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:04,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289258266] [2025-02-08 14:06:04,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:04,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:04,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:06:04,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:06:04,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:04,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:04,341 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 14:06:04,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289258266] [2025-02-08 14:06:04,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289258266] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:04,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:04,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:04,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028092671] [2025-02-08 14:06:04,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:04,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:04,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:04,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:04,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:04,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2025-02-08 14:06:04,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 14:06:04,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:04,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2025-02-08 14:06:04,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:04,517 INFO L124 PetriNetUnfolderBase]: 99/363 cut-off events. [2025-02-08 14:06:04,518 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:06:04,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 363 events. 99/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1777 event pairs, 70 based on Foata normal form. 96/414 useless extension candidates. Maximal degree in co-relation 571. Up to 186 conditions per place. [2025-02-08 14:06:04,521 INFO L140 encePairwiseOnDemand]: 46/60 looper letters, 43 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2025-02-08 14:06:04,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 243 flow [2025-02-08 14:06:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 173 transitions. [2025-02-08 14:06:04,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7208333333333333 [2025-02-08 14:06:04,531 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 125 flow. Second operand 4 states and 173 transitions. [2025-02-08 14:06:04,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 243 flow [2025-02-08 14:06:04,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:06:04,536 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 115 flow [2025-02-08 14:06:04,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2025-02-08 14:06:04,540 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2025-02-08 14:06:04,540 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 115 flow [2025-02-08 14:06:04,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 14:06:04,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:04,540 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:04,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:06:04,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:06:04,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1003613106, now seen corresponding path program 1 times [2025-02-08 14:06:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:04,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830288540] [2025-02-08 14:06:04,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:04,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:04,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:06:04,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:06:04,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:04,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:06:04,560 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:06:04,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:06:04,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:06:04,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:04,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:06:04,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:06:04,588 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:06:04,589 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2025-02-08 14:06:04,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2025-02-08 14:06:04,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2025-02-08 14:06:04,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-02-08 14:06:04,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-02-08 14:06:04,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-02-08 14:06:04,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-02-08 14:06:04,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:06:04,595 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 14:06:04,598 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:06:04,598 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 14:06:04,625 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:06:04,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 95 transitions, 206 flow [2025-02-08 14:06:04,644 INFO L124 PetriNetUnfolderBase]: 21/140 cut-off events. [2025-02-08 14:06:04,645 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 14:06:04,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 140 events. 21/140 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 518 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 93. Up to 6 conditions per place. [2025-02-08 14:06:04,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 95 transitions, 206 flow [2025-02-08 14:06:04,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 95 transitions, 206 flow [2025-02-08 14:06:04,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:06:04,649 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;@68da4546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:06:04,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-02-08 14:06:04,650 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:06:04,650 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:06:04,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:06:04,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:04,651 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:06:04,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:06:04,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash 395067155, now seen corresponding path program 1 times [2025-02-08 14:06:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386001176] [2025-02-08 14:06:04,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:04,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:06:04,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:06:04,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:04,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:04,705 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 14:06:04,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:04,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386001176] [2025-02-08 14:06:04,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386001176] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:04,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:04,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:04,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327806431] [2025-02-08 14:06:04,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:04,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:04,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:04,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:04,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:04,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 95 [2025-02-08 14:06:04,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 95 transitions, 206 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 14:06:04,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:04,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 95 [2025-02-08 14:06:04,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:05,414 INFO L124 PetriNetUnfolderBase]: 3220/7448 cut-off events. [2025-02-08 14:06:05,414 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2025-02-08 14:06:05,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12659 conditions, 7448 events. 3220/7448 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 64101 event pairs, 3024 based on Foata normal form. 2092/8637 useless extension candidates. Maximal degree in co-relation 10835. Up to 5107 conditions per place. [2025-02-08 14:06:05,481 INFO L140 encePairwiseOnDemand]: 75/95 looper letters, 61 selfloop transitions, 3 changer transitions 0/106 dead transitions. [2025-02-08 14:06:05,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 106 transitions, 356 flow [2025-02-08 14:06:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2025-02-08 14:06:05,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6868421052631579 [2025-02-08 14:06:05,487 INFO L175 Difference]: Start difference. First operand has 84 places, 95 transitions, 206 flow. Second operand 4 states and 261 transitions. [2025-02-08 14:06:05,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 106 transitions, 356 flow [2025-02-08 14:06:05,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 106 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:06:05,495 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 202 flow [2025-02-08 14:06:05,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2025-02-08 14:06:05,495 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 5 predicate places. [2025-02-08 14:06:05,495 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 202 flow [2025-02-08 14:06:05,496 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 14:06:05,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:05,496 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:05,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:06:05,496 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:06:05,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1966523352, now seen corresponding path program 1 times [2025-02-08 14:06:05,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:05,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500347249] [2025-02-08 14:06:05,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:05,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:06:05,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:06:05,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:05,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:05,585 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 14:06:05,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:05,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500347249] [2025-02-08 14:06:05,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500347249] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:05,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:05,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:06:05,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735974224] [2025-02-08 14:06:05,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:05,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:06:05,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:05,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:06:05,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:06:05,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 95 [2025-02-08 14:06:05,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 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 14:06:05,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:05,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 95 [2025-02-08 14:06:05,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:06,236 INFO L124 PetriNetUnfolderBase]: 2939/6152 cut-off events. [2025-02-08 14:06:06,236 INFO L125 PetriNetUnfolderBase]: For 544/544 co-relation queries the response was YES. [2025-02-08 14:06:06,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11569 conditions, 6152 events. 2939/6152 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 48877 event pairs, 634 based on Foata normal form. 144/5779 useless extension candidates. Maximal degree in co-relation 10438. Up to 2719 conditions per place. [2025-02-08 14:06:06,311 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 101 selfloop transitions, 6 changer transitions 0/149 dead transitions. [2025-02-08 14:06:06,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 149 transitions, 546 flow [2025-02-08 14:06:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:06:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:06:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 360 transitions. [2025-02-08 14:06:06,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2025-02-08 14:06:06,314 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 202 flow. Second operand 6 states and 360 transitions. [2025-02-08 14:06:06,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 149 transitions, 546 flow [2025-02-08 14:06:06,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 149 transitions, 544 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:06:06,319 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 208 flow [2025-02-08 14:06:06,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2025-02-08 14:06:06,320 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 8 predicate places. [2025-02-08 14:06:06,321 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 208 flow [2025-02-08 14:06:06,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.5) internal successors, (261), 6 states have internal predecessors, (261), 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 14:06:06,321 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:06,321 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:06,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:06:06,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:06:06,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:06,322 INFO L85 PathProgramCache]: Analyzing trace with hash 694715449, now seen corresponding path program 1 times [2025-02-08 14:06:06,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:06,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364016860] [2025-02-08 14:06:06,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:06,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:06,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:06:06,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:06:06,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:06,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:06,413 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 14:06:06,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:06,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364016860] [2025-02-08 14:06:06,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364016860] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:06,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:06,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:06,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644140247] [2025-02-08 14:06:06,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:06,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:06,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:06,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:06,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:06,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 95 [2025-02-08 14:06:06,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 14:06:06,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:06,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 95 [2025-02-08 14:06:06,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:06,855 INFO L124 PetriNetUnfolderBase]: 2816/6308 cut-off events. [2025-02-08 14:06:06,855 INFO L125 PetriNetUnfolderBase]: For 1303/1464 co-relation queries the response was YES. [2025-02-08 14:06:06,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11650 conditions, 6308 events. 2816/6308 cut-off events. For 1303/1464 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 52029 event pairs, 911 based on Foata normal form. 121/5849 useless extension candidates. Maximal degree in co-relation 9132. Up to 3985 conditions per place. [2025-02-08 14:06:06,893 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 83 selfloop transitions, 6 changer transitions 0/132 dead transitions. [2025-02-08 14:06:06,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 132 transitions, 531 flow [2025-02-08 14:06:06,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:06:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:06:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 305 transitions. [2025-02-08 14:06:06,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6421052631578947 [2025-02-08 14:06:06,895 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 208 flow. Second operand 5 states and 305 transitions. [2025-02-08 14:06:06,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 132 transitions, 531 flow [2025-02-08 14:06:06,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 132 transitions, 508 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-08 14:06:06,899 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 240 flow [2025-02-08 14:06:06,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=95, PETRI_TRANSITIONS=87} [2025-02-08 14:06:06,900 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 11 predicate places. [2025-02-08 14:06:06,900 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 240 flow [2025-02-08 14:06:06,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 14:06:06,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:06,900 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:06:06,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:06:06,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:06:06,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash 832682109, now seen corresponding path program 1 times [2025-02-08 14:06:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854496638] [2025-02-08 14:06:06,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:06,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:06,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:06:06,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:06:06,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:06,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:06,963 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 14:06:06,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854496638] [2025-02-08 14:06:06,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854496638] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:06,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:06,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:06:06,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653311463] [2025-02-08 14:06:06,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:06,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:06,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:06,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:06,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:06,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 95 [2025-02-08 14:06:06,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 240 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 14:06:06,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:06,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 95 [2025-02-08 14:06:06,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:07,361 INFO L124 PetriNetUnfolderBase]: 2829/5886 cut-off events. [2025-02-08 14:06:07,362 INFO L125 PetriNetUnfolderBase]: For 1479/1479 co-relation queries the response was YES. [2025-02-08 14:06:07,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11745 conditions, 5886 events. 2829/5886 cut-off events. For 1479/1479 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 46499 event pairs, 397 based on Foata normal form. 152/5763 useless extension candidates. Maximal degree in co-relation 10921. Up to 3339 conditions per place. [2025-02-08 14:06:07,385 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 93 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2025-02-08 14:06:07,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 141 transitions, 590 flow [2025-02-08 14:06:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:07,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:07,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-02-08 14:06:07,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6605263157894737 [2025-02-08 14:06:07,387 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 240 flow. Second operand 4 states and 251 transitions. [2025-02-08 14:06:07,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 141 transitions, 590 flow [2025-02-08 14:06:07,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 141 transitions, 586 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:06:07,395 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 252 flow [2025-02-08 14:06:07,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2025-02-08 14:06:07,395 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 13 predicate places. [2025-02-08 14:06:07,395 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 252 flow [2025-02-08 14:06:07,396 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 14:06:07,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:07,396 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2025-02-08 14:06:07,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:06:07,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-02-08 14:06:07,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1343602925, now seen corresponding path program 1 times [2025-02-08 14:06:07,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:07,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922483551] [2025-02-08 14:06:07,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:07,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:07,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:06:07,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:06:07,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:07,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:06:07,409 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:06:07,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:06:07,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:06:07,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:07,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:06:07,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:06:07,420 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:06:07,420 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2025-02-08 14:06:07,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2025-02-08 14:06:07,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:06:07,422 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-08 14:06:07,422 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:06:07,422 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 14:06:07,445 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:06:07,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 130 transitions, 287 flow [2025-02-08 14:06:07,462 INFO L124 PetriNetUnfolderBase]: 34/226 cut-off events. [2025-02-08 14:06:07,463 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-02-08 14:06:07,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 226 events. 34/226 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 958 event pairs, 1 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 155. Up to 12 conditions per place. [2025-02-08 14:06:07,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 130 transitions, 287 flow [2025-02-08 14:06:07,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 130 transitions, 287 flow [2025-02-08 14:06:07,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:06:07,467 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;@68da4546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:06:07,467 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-02-08 14:06:07,469 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:06:07,469 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:06:07,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:06:07,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:07,469 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:06:07,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:06:07,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash 519158518, now seen corresponding path program 1 times [2025-02-08 14:06:07,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:07,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589673399] [2025-02-08 14:06:07,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:07,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:07,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:06:07,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:06:07,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:07,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:07,506 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 14:06:07,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:07,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589673399] [2025-02-08 14:06:07,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589673399] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:07,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:07,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:07,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814974486] [2025-02-08 14:06:07,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:07,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:07,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:07,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:07,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:07,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 130 [2025-02-08 14:06:07,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 130 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 14:06:07,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:07,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 130 [2025-02-08 14:06:07,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:14,363 INFO L124 PetriNetUnfolderBase]: 61547/114543 cut-off events. [2025-02-08 14:06:14,363 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2025-02-08 14:06:14,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201318 conditions, 114543 events. 61547/114543 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 2810. Compared 1225345 event pairs, 39796 based on Foata normal form. 37036/139583 useless extension candidates. Maximal degree in co-relation 13447. Up to 85613 conditions per place. [2025-02-08 14:06:14,895 INFO L140 encePairwiseOnDemand]: 104/130 looper letters, 74 selfloop transitions, 3 changer transitions 0/135 dead transitions. [2025-02-08 14:06:14,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 135 transitions, 451 flow [2025-02-08 14:06:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2025-02-08 14:06:14,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6615384615384615 [2025-02-08 14:06:14,897 INFO L175 Difference]: Start difference. First operand has 114 places, 130 transitions, 287 flow. Second operand 4 states and 344 transitions. [2025-02-08 14:06:14,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 135 transitions, 451 flow [2025-02-08 14:06:14,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 135 transitions, 451 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:06:14,901 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 271 flow [2025-02-08 14:06:14,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2025-02-08 14:06:14,903 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2025-02-08 14:06:14,903 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 271 flow [2025-02-08 14:06:14,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 14:06:14,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:14,903 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:14,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:06:14,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:06:14,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:14,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1278756424, now seen corresponding path program 1 times [2025-02-08 14:06:14,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:14,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407313420] [2025-02-08 14:06:14,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:14,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:14,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:06:14,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:06:14,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:14,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:14,981 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 14:06:14,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:14,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407313420] [2025-02-08 14:06:14,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407313420] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:14,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:14,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:06:14,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25423721] [2025-02-08 14:06:14,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:14,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:06:14,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:14,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:06:14,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:06:14,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 130 [2025-02-08 14:06:14,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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 14:06:14,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:14,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 130 [2025-02-08 14:06:14,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:21,094 INFO L124 PetriNetUnfolderBase]: 56228/99348 cut-off events. [2025-02-08 14:06:21,095 INFO L125 PetriNetUnfolderBase]: For 8809/8809 co-relation queries the response was YES. [2025-02-08 14:06:21,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186376 conditions, 99348 events. 56228/99348 cut-off events. For 8809/8809 co-relation queries the response was YES. Maximal size of possible extension queue 2310. Compared 996315 event pairs, 7896 based on Foata normal form. 1872/94240 useless extension candidates. Maximal degree in co-relation 16426. Up to 45544 conditions per place. [2025-02-08 14:06:21,849 INFO L140 encePairwiseOnDemand]: 125/130 looper letters, 136 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2025-02-08 14:06:21,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 200 transitions, 729 flow [2025-02-08 14:06:21,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:06:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:06:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 491 transitions. [2025-02-08 14:06:21,853 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6294871794871795 [2025-02-08 14:06:21,853 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 271 flow. Second operand 6 states and 491 transitions. [2025-02-08 14:06:21,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 200 transitions, 729 flow [2025-02-08 14:06:21,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 200 transitions, 727 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:06:21,860 INFO L231 Difference]: Finished difference. Result has 122 places, 111 transitions, 277 flow [2025-02-08 14:06:21,861 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2025-02-08 14:06:21,862 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 8 predicate places. [2025-02-08 14:06:21,862 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 277 flow [2025-02-08 14:06:21,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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 14:06:21,862 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:21,862 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:21,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:06:21,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:06:21,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:21,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1666118756, now seen corresponding path program 1 times [2025-02-08 14:06:21,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:21,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479111843] [2025-02-08 14:06:21,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:21,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:21,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:06:21,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:06:21,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:21,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:21,934 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 14:06:21,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:21,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479111843] [2025-02-08 14:06:21,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479111843] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:21,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:21,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:21,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559766559] [2025-02-08 14:06:21,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:21,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:21,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:21,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:21,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:21,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 130 [2025-02-08 14:06:21,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 14:06:21,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:21,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 130 [2025-02-08 14:06:21,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:27,858 INFO L124 PetriNetUnfolderBase]: 56914/102783 cut-off events. [2025-02-08 14:06:27,859 INFO L125 PetriNetUnfolderBase]: For 17853/20101 co-relation queries the response was YES. [2025-02-08 14:06:28,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192695 conditions, 102783 events. 56914/102783 cut-off events. For 17853/20101 co-relation queries the response was YES. Maximal size of possible extension queue 2640. Compared 1048278 event pairs, 23513 based on Foata normal form. 1497/95809 useless extension candidates. Maximal degree in co-relation 127946. Up to 73664 conditions per place. [2025-02-08 14:06:28,540 INFO L140 encePairwiseOnDemand]: 123/130 looper letters, 121 selfloop transitions, 8 changer transitions 0/188 dead transitions. [2025-02-08 14:06:28,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 188 transitions, 758 flow [2025-02-08 14:06:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:06:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:06:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 425 transitions. [2025-02-08 14:06:28,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6538461538461539 [2025-02-08 14:06:28,543 INFO L175 Difference]: Start difference. First operand has 122 places, 111 transitions, 277 flow. Second operand 5 states and 425 transitions. [2025-02-08 14:06:28,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 188 transitions, 758 flow [2025-02-08 14:06:28,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 188 transitions, 735 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-08 14:06:28,550 INFO L231 Difference]: Finished difference. Result has 125 places, 118 transitions, 326 flow [2025-02-08 14:06:28,550 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=125, PETRI_TRANSITIONS=118} [2025-02-08 14:06:28,551 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 11 predicate places. [2025-02-08 14:06:28,551 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 118 transitions, 326 flow [2025-02-08 14:06:28,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 14:06:28,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:28,551 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:06:28,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:06:28,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:06:28,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:28,552 INFO L85 PathProgramCache]: Analyzing trace with hash -986743009, now seen corresponding path program 1 times [2025-02-08 14:06:28,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:28,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806407982] [2025-02-08 14:06:28,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:28,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:06:28,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:06:28,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:28,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:28,589 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 14:06:28,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:28,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806407982] [2025-02-08 14:06:28,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806407982] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:28,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:28,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:06:28,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773005096] [2025-02-08 14:06:28,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:28,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:28,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:28,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:28,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:28,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 130 [2025-02-08 14:06:28,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 118 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 14:06:28,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:28,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 130 [2025-02-08 14:06:28,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:34,985 INFO L124 PetriNetUnfolderBase]: 57546/98653 cut-off events. [2025-02-08 14:06:34,986 INFO L125 PetriNetUnfolderBase]: For 28113/28113 co-relation queries the response was YES. [2025-02-08 14:06:35,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201302 conditions, 98653 events. 57546/98653 cut-off events. For 28113/28113 co-relation queries the response was YES. Maximal size of possible extension queue 2415. Compared 965179 event pairs, 8551 based on Foata normal form. 2136/96337 useless extension candidates. Maximal degree in co-relation 175458. Up to 59362 conditions per place. [2025-02-08 14:06:35,554 INFO L140 encePairwiseOnDemand]: 125/130 looper letters, 134 selfloop transitions, 6 changer transitions 0/198 dead transitions. [2025-02-08 14:06:35,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 198 transitions, 836 flow [2025-02-08 14:06:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2025-02-08 14:06:35,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6730769230769231 [2025-02-08 14:06:35,556 INFO L175 Difference]: Start difference. First operand has 125 places, 118 transitions, 326 flow. Second operand 4 states and 350 transitions. [2025-02-08 14:06:35,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 198 transitions, 836 flow [2025-02-08 14:06:35,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 198 transitions, 832 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:06:35,862 INFO L231 Difference]: Finished difference. Result has 127 places, 118 transitions, 338 flow [2025-02-08 14:06:35,862 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=338, PETRI_PLACES=127, PETRI_TRANSITIONS=118} [2025-02-08 14:06:35,863 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 13 predicate places. [2025-02-08 14:06:35,863 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 118 transitions, 338 flow [2025-02-08 14:06:35,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 14:06:35,863 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:35,863 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:35,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:06:35,864 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:06:35,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash 591376350, now seen corresponding path program 1 times [2025-02-08 14:06:35,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:35,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904136848] [2025-02-08 14:06:35,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:35,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:35,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:06:35,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:06:35,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:35,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:35,925 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 14:06:35,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:35,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904136848] [2025-02-08 14:06:35,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904136848] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:35,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:35,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:35,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38244762] [2025-02-08 14:06:35,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:35,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:35,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:35,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:35,930 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 130 [2025-02-08 14:06:35,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 14:06:35,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:35,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 130 [2025-02-08 14:06:35,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand