./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/04-mutex_51-mutex_ptr.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 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:42:50,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:42:50,753 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:42:50,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:42:50,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:42:50,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:42:50,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:42:50,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:42:50,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:42:50,778 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:42:50,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:42:50,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:42:50,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:42:50,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:42:50,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:42:50,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:42:50,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:42:50,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:42:50,782 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:42:50,782 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:42:50,782 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:42:50,783 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:50,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:42:50,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:42:50,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:42:50,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:42:50,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:42:50,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:42:50,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:42:50,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:42:50,784 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 -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2025-02-06 18:42:51,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:42:51,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:42:51,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:42:51,037 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:42:51,037 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:42:51,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2025-02-06 18:42:52,459 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e3beb65e/5a4a05bd04e84c7d8f8771654306e28d/FLAG060260b24 [2025-02-06 18:42:52,792 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:42:52,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2025-02-06 18:42:52,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e3beb65e/5a4a05bd04e84c7d8f8771654306e28d/FLAG060260b24 [2025-02-06 18:42:52,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e3beb65e/5a4a05bd04e84c7d8f8771654306e28d [2025-02-06 18:42:52,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:42:52,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:42:52,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:52,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:42:52,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:42:52,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:52" (1/1) ... [2025-02-06 18:42:52,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c442006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:52, skipping insertion in model container [2025-02-06 18:42:52,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:52" (1/1) ... [2025-02-06 18:42:52,835 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:42:53,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:53,089 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:42:53,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:53,155 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:42:53,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53 WrapperNode [2025-02-06 18:42:53,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:53,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:53,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:42:53,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:42:53,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,180 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 94 [2025-02-06 18:42:53,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:53,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:42:53,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:42:53,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:42:53,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,195 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [5, 1]. The 2 writes are split as follows [0, 2]. [2025-02-06 18:42:53,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,199 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:42:53,202 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:42:53,202 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:42:53,202 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:42:53,203 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (1/1) ... [2025-02-06 18:42:53,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:53,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:53,228 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) [2025-02-06 18:42:53,229 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 [2025-02-06 18:42:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:42:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:42:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:42:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:42:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:42:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:42:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:42:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 18:42:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 18:42:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:42:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:42:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:42:53,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:42:53,246 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:42:53,328 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:42:53,329 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:42:53,456 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:42:53,457 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:42:53,653 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:42:53,655 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:42:53,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:53 BoogieIcfgContainer [2025-02-06 18:42:53,655 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:42:53,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:42:53,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:42:53,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:42:53,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:42:52" (1/3) ... [2025-02-06 18:42:53,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34191615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:42:53, skipping insertion in model container [2025-02-06 18:42:53,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:53" (2/3) ... [2025-02-06 18:42:53,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34191615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:42:53, skipping insertion in model container [2025-02-06 18:42:53,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:53" (3/3) ... [2025-02-06 18:42:53,664 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2025-02-06 18:42:53,673 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:42:53,675 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_51-mutex_ptr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-06 18:42:53,675 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:42:53,705 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 18:42:53,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2025-02-06 18:42:53,743 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-02-06 18:42:53,744 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:42:53,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-02-06 18:42:53,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2025-02-06 18:42:53,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-02-06 18:42:53,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:42:53,759 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;@f55f039, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:42:53,759 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 18:42:53,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:42:53,764 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-02-06 18:42:53,764 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:42:53,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:53,764 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 18:42:53,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:53,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:53,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1015922364, now seen corresponding path program 1 times [2025-02-06 18:42:53,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:53,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094901038] [2025-02-06 18:42:53,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:53,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:42:53,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:42:53,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:53,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:54,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:54,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094901038] [2025-02-06 18:42:54,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094901038] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:54,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:54,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712451400] [2025-02-06 18:42:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:54,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:42:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:54,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:42:54,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:42:54,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2025-02-06 18:42:54,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2025-02-06 18:42:54,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:54,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2025-02-06 18:42:54,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:54,250 INFO L124 PetriNetUnfolderBase]: 33/98 cut-off events. [2025-02-06 18:42:54,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:42:54,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 98 events. 33/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 319 event pairs, 7 based on Foata normal form. 6/101 useless extension candidates. Maximal degree in co-relation 176. Up to 55 conditions per place. [2025-02-06 18:42:54,252 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 22 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2025-02-06 18:42:54,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 38 transitions, 145 flow [2025-02-06 18:42:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:42:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:42:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2025-02-06 18:42:54,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5289855072463768 [2025-02-06 18:42:54,265 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 73 transitions. [2025-02-06 18:42:54,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 38 transitions, 145 flow [2025-02-06 18:42:54,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:54,270 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 80 flow [2025-02-06 18:42:54,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2025-02-06 18:42:54,274 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2025-02-06 18:42:54,275 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 80 flow [2025-02-06 18:42:54,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2025-02-06 18:42:54,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:54,276 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 18:42:54,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:42:54,276 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:54,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1016021121, now seen corresponding path program 1 times [2025-02-06 18:42:54,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:54,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396575795] [2025-02-06 18:42:54,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:54,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:54,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:42:54,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:42:54,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:54,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:54,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:54,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396575795] [2025-02-06 18:42:54,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396575795] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:54,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:54,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:42:54,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096899310] [2025-02-06 18:42:54,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:54,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:42:54,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:54,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:42:54,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:42:54,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2025-02-06 18:42:54,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2025-02-06 18:42:54,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:54,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2025-02-06 18:42:54,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:54,527 INFO L124 PetriNetUnfolderBase]: 26/91 cut-off events. [2025-02-06 18:42:54,529 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-02-06 18:42:54,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 91 events. 26/91 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 296 event pairs, 13 based on Foata normal form. 14/105 useless extension candidates. Maximal degree in co-relation 201. Up to 44 conditions per place. [2025-02-06 18:42:54,531 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 19 selfloop transitions, 5 changer transitions 4/33 dead transitions. [2025-02-06 18:42:54,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 167 flow [2025-02-06 18:42:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:42:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:42:54,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2025-02-06 18:42:54,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5304347826086957 [2025-02-06 18:42:54,532 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 80 flow. Second operand 5 states and 61 transitions. [2025-02-06 18:42:54,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 167 flow [2025-02-06 18:42:54,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 158 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:54,535 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 100 flow [2025-02-06 18:42:54,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2025-02-06 18:42:54,536 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2025-02-06 18:42:54,536 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 100 flow [2025-02-06 18:42:54,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2025-02-06 18:42:54,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:54,536 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:54,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:42:54,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:54,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash -991382519, now seen corresponding path program 1 times [2025-02-06 18:42:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:54,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110785973] [2025-02-06 18:42:54,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:54,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:54,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:42:54,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:42:54,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:54,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:54,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:54,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110785973] [2025-02-06 18:42:54,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110785973] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:54,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:54,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:54,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295733922] [2025-02-06 18:42:54,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:54,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:42:54,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:54,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:42:54,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:42:54,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 23 [2025-02-06 18:42:54,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-02-06 18:42:54,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:54,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 23 [2025-02-06 18:42:54,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:54,645 INFO L124 PetriNetUnfolderBase]: 12/56 cut-off events. [2025-02-06 18:42:54,646 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-02-06 18:42:54,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 56 events. 12/56 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 133 event pairs, 3 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 136. Up to 26 conditions per place. [2025-02-06 18:42:54,646 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 17 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2025-02-06 18:42:54,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 156 flow [2025-02-06 18:42:54,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:42:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:42:54,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2025-02-06 18:42:54,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2025-02-06 18:42:54,647 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 100 flow. Second operand 3 states and 42 transitions. [2025-02-06 18:42:54,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 156 flow [2025-02-06 18:42:54,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 148 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:54,649 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 100 flow [2025-02-06 18:42:54,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2025-02-06 18:42:54,649 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2025-02-06 18:42:54,649 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 100 flow [2025-02-06 18:42:54,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2025-02-06 18:42:54,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:54,650 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:54,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:42:54,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:54,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1355281270, now seen corresponding path program 1 times [2025-02-06 18:42:54,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:54,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695926870] [2025-02-06 18:42:54,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:54,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:42:54,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:42:54,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:54,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:54,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:54,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695926870] [2025-02-06 18:42:54,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695926870] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:54,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:54,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:54,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920313172] [2025-02-06 18:42:54,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:54,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:54,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:54,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:54,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:54,837 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:54,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 100 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:54,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:54,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:54,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:54,920 INFO L124 PetriNetUnfolderBase]: 13/65 cut-off events. [2025-02-06 18:42:54,921 INFO L125 PetriNetUnfolderBase]: For 39/41 co-relation queries the response was YES. [2025-02-06 18:42:54,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 65 events. 13/65 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 182 event pairs, 4 based on Foata normal form. 3/68 useless extension candidates. Maximal degree in co-relation 167. Up to 31 conditions per place. [2025-02-06 18:42:54,921 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 23 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2025-02-06 18:42:54,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 208 flow [2025-02-06 18:42:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:42:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:42:54,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 65 transitions. [2025-02-06 18:42:54,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3532608695652174 [2025-02-06 18:42:54,922 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 100 flow. Second operand 8 states and 65 transitions. [2025-02-06 18:42:54,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 208 flow [2025-02-06 18:42:54,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:54,924 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 154 flow [2025-02-06 18:42:54,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2025-02-06 18:42:54,924 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 21 predicate places. [2025-02-06 18:42:54,924 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 154 flow [2025-02-06 18:42:54,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:54,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:54,925 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:54,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:42:54,925 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:54,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1088941968, now seen corresponding path program 2 times [2025-02-06 18:42:54,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:54,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130620258] [2025-02-06 18:42:54,926 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:42:54,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:54,942 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:42:54,946 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:42:54,946 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:42:54,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:55,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:55,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130620258] [2025-02-06 18:42:55,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130620258] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:55,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:55,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:55,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134357409] [2025-02-06 18:42:55,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:55,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:55,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:55,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:55,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:55,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:55,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:55,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:55,139 INFO L124 PetriNetUnfolderBase]: 12/70 cut-off events. [2025-02-06 18:42:55,140 INFO L125 PetriNetUnfolderBase]: For 112/114 co-relation queries the response was YES. [2025-02-06 18:42:55,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 70 events. 12/70 cut-off events. For 112/114 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 224 event pairs, 9 based on Foata normal form. 3/73 useless extension candidates. Maximal degree in co-relation 196. Up to 34 conditions per place. [2025-02-06 18:42:55,140 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 22 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2025-02-06 18:42:55,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 36 transitions, 256 flow [2025-02-06 18:42:55,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:42:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:42:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 62 transitions. [2025-02-06 18:42:55,143 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33695652173913043 [2025-02-06 18:42:55,144 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 154 flow. Second operand 8 states and 62 transitions. [2025-02-06 18:42:55,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 36 transitions, 256 flow [2025-02-06 18:42:55,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 36 transitions, 250 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:55,145 INFO L231 Difference]: Finished difference. Result has 55 places, 31 transitions, 214 flow [2025-02-06 18:42:55,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=55, PETRI_TRANSITIONS=31} [2025-02-06 18:42:55,146 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 31 predicate places. [2025-02-06 18:42:55,146 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 31 transitions, 214 flow [2025-02-06 18:42:55,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:55,146 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:55,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:42:55,146 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:55,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash -26888106, now seen corresponding path program 1 times [2025-02-06 18:42:55,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:55,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563330448] [2025-02-06 18:42:55,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:55,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:55,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:42:55,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:42:55,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:55,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:55,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:55,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:55,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563330448] [2025-02-06 18:42:55,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563330448] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:55,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:55,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:55,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076993385] [2025-02-06 18:42:55,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:55,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:55,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:55,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:55,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:55,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:55,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 31 transitions, 214 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:55,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:55,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:55,471 INFO L124 PetriNetUnfolderBase]: 11/67 cut-off events. [2025-02-06 18:42:55,472 INFO L125 PetriNetUnfolderBase]: For 183/185 co-relation queries the response was YES. [2025-02-06 18:42:55,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 67 events. 11/67 cut-off events. For 183/185 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 2 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 210. Up to 20 conditions per place. [2025-02-06 18:42:55,474 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 25 selfloop transitions, 9 changer transitions 0/37 dead transitions. [2025-02-06 18:42:55,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 37 transitions, 295 flow [2025-02-06 18:42:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:42:55,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:42:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 57 transitions. [2025-02-06 18:42:55,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35403726708074534 [2025-02-06 18:42:55,476 INFO L175 Difference]: Start difference. First operand has 55 places, 31 transitions, 214 flow. Second operand 7 states and 57 transitions. [2025-02-06 18:42:55,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 37 transitions, 295 flow [2025-02-06 18:42:55,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 37 transitions, 282 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:55,480 INFO L231 Difference]: Finished difference. Result has 58 places, 30 transitions, 215 flow [2025-02-06 18:42:55,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=215, PETRI_PLACES=58, PETRI_TRANSITIONS=30} [2025-02-06 18:42:55,481 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2025-02-06 18:42:55,481 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 30 transitions, 215 flow [2025-02-06 18:42:55,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:55,482 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:55,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:42:55,482 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:55,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:55,482 INFO L85 PathProgramCache]: Analyzing trace with hash -264331784, now seen corresponding path program 3 times [2025-02-06 18:42:55,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:55,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959182130] [2025-02-06 18:42:55,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:42:55,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:55,501 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:42:55,506 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:42:55,507 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:42:55,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:55,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959182130] [2025-02-06 18:42:55,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959182130] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:55,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:55,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:55,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211815173] [2025-02-06 18:42:55,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:55,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:55,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:55,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:55,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:55,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:55,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 30 transitions, 215 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:55,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:55,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:55,715 INFO L124 PetriNetUnfolderBase]: 11/66 cut-off events. [2025-02-06 18:42:55,716 INFO L125 PetriNetUnfolderBase]: For 196/198 co-relation queries the response was YES. [2025-02-06 18:42:55,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 66 events. 11/66 cut-off events. For 196/198 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 200 event pairs, 7 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 214. Up to 19 conditions per place. [2025-02-06 18:42:55,716 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 20 selfloop transitions, 11 changer transitions 0/34 dead transitions. [2025-02-06 18:42:55,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 34 transitions, 283 flow [2025-02-06 18:42:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:42:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:42:55,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 59 transitions. [2025-02-06 18:42:55,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32065217391304346 [2025-02-06 18:42:55,717 INFO L175 Difference]: Start difference. First operand has 58 places, 30 transitions, 215 flow. Second operand 8 states and 59 transitions. [2025-02-06 18:42:55,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 34 transitions, 283 flow [2025-02-06 18:42:55,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 34 transitions, 252 flow, removed 4 selfloop flow, removed 8 redundant places. [2025-02-06 18:42:55,719 INFO L231 Difference]: Finished difference. Result has 56 places, 29 transitions, 198 flow [2025-02-06 18:42:55,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=198, PETRI_PLACES=56, PETRI_TRANSITIONS=29} [2025-02-06 18:42:55,720 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 32 predicate places. [2025-02-06 18:42:55,720 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 29 transitions, 198 flow [2025-02-06 18:42:55,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:55,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:55,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:42:55,721 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:55,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:55,721 INFO L85 PathProgramCache]: Analyzing trace with hash -833531072, now seen corresponding path program 1 times [2025-02-06 18:42:55,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:55,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763890557] [2025-02-06 18:42:55,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:55,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:55,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:42:55,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:42:55,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:55,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:55,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:55,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763890557] [2025-02-06 18:42:55,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763890557] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:55,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:55,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:55,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335272667] [2025-02-06 18:42:55,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:55,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:55,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:55,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:55,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:55,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 29 transitions, 198 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:55,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:55,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:55,994 INFO L124 PetriNetUnfolderBase]: 10/63 cut-off events. [2025-02-06 18:42:55,995 INFO L125 PetriNetUnfolderBase]: For 172/174 co-relation queries the response was YES. [2025-02-06 18:42:55,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 63 events. 10/63 cut-off events. For 172/174 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 193 event pairs, 2 based on Foata normal form. 4/67 useless extension candidates. Maximal degree in co-relation 198. Up to 19 conditions per place. [2025-02-06 18:42:55,995 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 14 selfloop transitions, 8 changer transitions 10/35 dead transitions. [2025-02-06 18:42:55,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 35 transitions, 275 flow [2025-02-06 18:42:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 18:42:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 18:42:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 64 transitions. [2025-02-06 18:42:55,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30917874396135264 [2025-02-06 18:42:55,996 INFO L175 Difference]: Start difference. First operand has 56 places, 29 transitions, 198 flow. Second operand 9 states and 64 transitions. [2025-02-06 18:42:55,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 35 transitions, 275 flow [2025-02-06 18:42:55,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 35 transitions, 238 flow, removed 4 selfloop flow, removed 8 redundant places. [2025-02-06 18:42:55,998 INFO L231 Difference]: Finished difference. Result has 55 places, 23 transitions, 149 flow [2025-02-06 18:42:55,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=149, PETRI_PLACES=55, PETRI_TRANSITIONS=23} [2025-02-06 18:42:55,999 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 31 predicate places. [2025-02-06 18:42:55,999 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 23 transitions, 149 flow [2025-02-06 18:42:55,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:55,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:55,999 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:55,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:42:55,999 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:55,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:56,000 INFO L85 PathProgramCache]: Analyzing trace with hash -938579145, now seen corresponding path program 1 times [2025-02-06 18:42:56,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:56,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629068868] [2025-02-06 18:42:56,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:56,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:56,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:42:56,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:42:56,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:56,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:56,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629068868] [2025-02-06 18:42:56,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629068868] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:56,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:56,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:56,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126205433] [2025-02-06 18:42:56,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:56,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:56,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:56,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:56,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:56,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:56,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 23 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:56,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:56,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:56,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:56,174 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2025-02-06 18:42:56,175 INFO L125 PetriNetUnfolderBase]: For 96/98 co-relation queries the response was YES. [2025-02-06 18:42:56,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 40 events. 4/40 cut-off events. For 96/98 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 80 event pairs, 1 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 124. Up to 14 conditions per place. [2025-02-06 18:42:56,175 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 11 selfloop transitions, 4 changer transitions 9/27 dead transitions. [2025-02-06 18:42:56,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 27 transitions, 202 flow [2025-02-06 18:42:56,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:42:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:42:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 50 transitions. [2025-02-06 18:42:56,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3105590062111801 [2025-02-06 18:42:56,176 INFO L175 Difference]: Start difference. First operand has 55 places, 23 transitions, 149 flow. Second operand 7 states and 50 transitions. [2025-02-06 18:42:56,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 27 transitions, 202 flow [2025-02-06 18:42:56,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 27 transitions, 156 flow, removed 2 selfloop flow, removed 10 redundant places. [2025-02-06 18:42:56,177 INFO L231 Difference]: Finished difference. Result has 42 places, 18 transitions, 83 flow [2025-02-06 18:42:56,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=83, PETRI_PLACES=42, PETRI_TRANSITIONS=18} [2025-02-06 18:42:56,178 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 18 predicate places. [2025-02-06 18:42:56,178 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 18 transitions, 83 flow [2025-02-06 18:42:56,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:56,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:56,178 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:56,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:42:56,179 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:56,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 602537581, now seen corresponding path program 2 times [2025-02-06 18:42:56,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:56,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921086679] [2025-02-06 18:42:56,179 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:42:56,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:56,190 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:42:56,193 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:42:56,193 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:42:56,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:56,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:56,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921086679] [2025-02-06 18:42:56,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921086679] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:56,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:56,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:56,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837948591] [2025-02-06 18:42:56,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:56,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:56,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:56,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:56,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:56,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:56,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 18 transitions, 83 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:56,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:56,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:56,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:56,339 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2025-02-06 18:42:56,339 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-02-06 18:42:56,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 23 events. 1/23 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 1 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 58. Up to 9 conditions per place. [2025-02-06 18:42:56,339 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 8 selfloop transitions, 3 changer transitions 5/19 dead transitions. [2025-02-06 18:42:56,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 19 transitions, 113 flow [2025-02-06 18:42:56,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:42:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:42:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 45 transitions. [2025-02-06 18:42:56,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2795031055900621 [2025-02-06 18:42:56,340 INFO L175 Difference]: Start difference. First operand has 42 places, 18 transitions, 83 flow. Second operand 7 states and 45 transitions. [2025-02-06 18:42:56,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 19 transitions, 113 flow [2025-02-06 18:42:56,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 19 transitions, 96 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 18:42:56,341 INFO L231 Difference]: Finished difference. Result has 34 places, 14 transitions, 51 flow [2025-02-06 18:42:56,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=51, PETRI_PLACES=34, PETRI_TRANSITIONS=14} [2025-02-06 18:42:56,342 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2025-02-06 18:42:56,342 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 14 transitions, 51 flow [2025-02-06 18:42:56,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:56,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:56,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:56,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:42:56,342 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 18:42:56,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:56,343 INFO L85 PathProgramCache]: Analyzing trace with hash 395649509, now seen corresponding path program 3 times [2025-02-06 18:42:56,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:56,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137449119] [2025-02-06 18:42:56,343 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:42:56,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:56,354 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:42:56,357 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:42:56,357 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:42:56,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:56,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:56,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137449119] [2025-02-06 18:42:56,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137449119] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:56,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:42:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023473785] [2025-02-06 18:42:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:56,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:42:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:56,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:42:56,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:42:56,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-06 18:42:56,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 14 transitions, 51 flow. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:56,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:56,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-06 18:42:56,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:56,490 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2025-02-06 18:42:56,491 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 18:42:56,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 15 events. 1/15 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2025-02-06 18:42:56,491 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2025-02-06 18:42:56,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 14 transitions, 71 flow [2025-02-06 18:42:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:42:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:42:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2025-02-06 18:42:56,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2484472049689441 [2025-02-06 18:42:56,493 INFO L175 Difference]: Start difference. First operand has 34 places, 14 transitions, 51 flow. Second operand 7 states and 40 transitions. [2025-02-06 18:42:56,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 14 transitions, 71 flow [2025-02-06 18:42:56,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 14 transitions, 57 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-06 18:42:56,493 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2025-02-06 18:42:56,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2025-02-06 18:42:56,494 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2025-02-06 18:42:56,494 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2025-02-06 18:42:56,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 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) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-02-06 18:42:56,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-02-06 18:42:56,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:42:56,498 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2025-02-06 18:42:56,501 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:42:56,501 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:42:56,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:42:56 BasicIcfg [2025-02-06 18:42:56,504 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:42:56,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:42:56,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:42:56,505 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:42:56,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:53" (3/4) ... [2025-02-06 18:42:56,506 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:42:56,508 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-06 18:42:56,510 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2025-02-06 18:42:56,511 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-06 18:42:56,511 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-06 18:42:56,511 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 18:42:56,511 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 18:42:56,557 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:42:56,557 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:42:56,557 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:42:56,558 INFO L158 Benchmark]: Toolchain (without parser) took 3743.94ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 104.7MB in the beginning and 134.5MB in the end (delta: -29.8MB). Peak memory consumption was 119.4MB. Max. memory is 16.1GB. [2025-02-06 18:42:56,558 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 226.5MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:42:56,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.88ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 77.6MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 18:42:56,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.36ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:42:56,559 INFO L158 Benchmark]: Boogie Preprocessor took 20.88ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 72.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:42:56,559 INFO L158 Benchmark]: IcfgBuilder took 452.94ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 95.5MB in the end (delta: -22.7MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2025-02-06 18:42:56,559 INFO L158 Benchmark]: TraceAbstraction took 2846.80ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 94.7MB in the beginning and 140.7MB in the end (delta: -45.9MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2025-02-06 18:42:56,559 INFO L158 Benchmark]: Witness Printer took 52.97ms. Allocated memory is still 293.6MB. Free memory was 140.7MB in the beginning and 134.5MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:42:56,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 226.5MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.88ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 77.6MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.36ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.88ms. Allocated memory is still 142.6MB. Free memory was 74.6MB in the beginning and 72.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 452.94ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 95.5MB in the end (delta: -22.7MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2846.80ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 94.7MB in the beginning and 140.7MB in the end (delta: -45.9MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Witness Printer took 52.97ms. Allocated memory is still 293.6MB. Free memory was 140.7MB in the beginning and 134.5MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 926]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 306 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 341 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 995 IncrementalHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 35 mSDtfsCounter, 995 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=6, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 749 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:42:56,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE