./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.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/13-privatized_04-priv_multi_true.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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:43:43,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:43:43,985 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:43:43,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:43:43,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:43:44,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:43:44,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:43:44,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:43:44,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:43:44,003 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:43:44,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:43:44,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:43:44,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:43:44,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:43:44,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:43:44,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:43:44,005 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:43:44,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:43:44,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:43:44,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:43:44,007 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 -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2025-02-06 18:43:44,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:43:44,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:43:44,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:43:44,220 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:43:44,220 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:43:44,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-02-06 18:43:45,327 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b258d4ae4/28044bf014ff4e1a8947ca38fe7712b0/FLAG25a12c751 [2025-02-06 18:43:45,677 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:43:45,677 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-02-06 18:43:45,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b258d4ae4/28044bf014ff4e1a8947ca38fe7712b0/FLAG25a12c751 [2025-02-06 18:43:45,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b258d4ae4/28044bf014ff4e1a8947ca38fe7712b0 [2025-02-06 18:43:45,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:43:45,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:43:45,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:43:45,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:43:45,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:43:45,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:43:45" (1/1) ... [2025-02-06 18:43:45,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d6f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:45, skipping insertion in model container [2025-02-06 18:43:45,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:43:45" (1/1) ... [2025-02-06 18:43:45,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:43:45,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:43:45,966 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:43:45,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:43:46,030 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:43:46,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46 WrapperNode [2025-02-06 18:43:46,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:43:46,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:43:46,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:43:46,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:43:46,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,056 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 100 [2025-02-06 18:43:46,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:43:46,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:43:46,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:43:46,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:43:46,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,064 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,071 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-02-06 18:43:46,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:43:46,084 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:43:46,084 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:43:46,084 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:43:46,085 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (1/1) ... [2025-02-06 18:43:46,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:43:46,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:46,109 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 18:43:46,111 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 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2025-02-06 18:43:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2025-02-06 18:43:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure process [2025-02-06 18:43:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:43:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:43:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:43:46,140 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 18:43:46,322 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:43:46,323 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:43:46,483 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:43:46,483 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:43:46,618 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:43:46,619 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:43:46,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:43:46 BoogieIcfgContainer [2025-02-06 18:43:46,619 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:43:46,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:43:46,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:43:46,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:43:46,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:43:45" (1/3) ... [2025-02-06 18:43:46,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e63b7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:43:46, skipping insertion in model container [2025-02-06 18:43:46,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:43:46" (2/3) ... [2025-02-06 18:43:46,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e63b7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:43:46, skipping insertion in model container [2025-02-06 18:43:46,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:43:46" (3/3) ... [2025-02-06 18:43:46,627 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2025-02-06 18:43:46,636 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:43:46,638 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_04-priv_multi_true.i that has 4 procedures, 68 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-02-06 18:43:46,638 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:43:46,685 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 18:43:46,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 158 flow [2025-02-06 18:43:46,739 INFO L124 PetriNetUnfolderBase]: 6/70 cut-off events. [2025-02-06 18:43:46,740 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:46,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 6/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 172 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2025-02-06 18:43:46,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 158 flow [2025-02-06 18:43:46,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 70 transitions, 149 flow [2025-02-06 18:43:46,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:43:46,756 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;@68e5c0b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:43:46,756 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-02-06 18:43:46,763 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:43:46,763 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2025-02-06 18:43:46,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:43:46,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:46,763 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:46,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:43:46,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash 535820402, now seen corresponding path program 1 times [2025-02-06 18:43:46,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:46,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144983485] [2025-02-06 18:43:46,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:46,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:46,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:43:46,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:43:46,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:46,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:47,046 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 18:43:47,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:47,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144983485] [2025-02-06 18:43:47,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144983485] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:47,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:47,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:43:47,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096023906] [2025-02-06 18:43:47,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:47,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:47,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:47,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:47,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:47,083 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2025-02-06 18:43:47,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 18:43:47,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:47,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2025-02-06 18:43:47,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:49,804 INFO L124 PetriNetUnfolderBase]: 27700/42857 cut-off events. [2025-02-06 18:43:49,805 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2025-02-06 18:43:49,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79798 conditions, 42857 events. 27700/42857 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 335359 event pairs, 15149 based on Foata normal form. 3641/44267 useless extension candidates. Maximal degree in co-relation 79787. Up to 23511 conditions per place. [2025-02-06 18:43:50,050 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 103 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-02-06 18:43:50,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 499 flow [2025-02-06 18:43:50,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:43:50,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:43:50,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2025-02-06 18:43:50,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8047945205479452 [2025-02-06 18:43:50,063 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 149 flow. Second operand 4 states and 235 transitions. [2025-02-06 18:43:50,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 499 flow [2025-02-06 18:43:50,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 492 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:43:50,071 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 166 flow [2025-02-06 18:43:50,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2025-02-06 18:43:50,074 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2025-02-06 18:43:50,074 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 166 flow [2025-02-06 18:43:50,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 18:43:50,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:50,075 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:50,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:43:50,075 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:43:50,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:50,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2136368056, now seen corresponding path program 1 times [2025-02-06 18:43:50,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:50,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165554373] [2025-02-06 18:43:50,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:50,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:50,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:43:50,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:43:50,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:50,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:50,205 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 18:43:50,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:50,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165554373] [2025-02-06 18:43:50,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165554373] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:50,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:50,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:43:50,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506634317] [2025-02-06 18:43:50,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:50,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:50,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:50,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:50,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:50,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2025-02-06 18:43:50,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 18:43:50,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:50,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2025-02-06 18:43:50,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:54,619 INFO L124 PetriNetUnfolderBase]: 56029/91483 cut-off events. [2025-02-06 18:43:54,619 INFO L125 PetriNetUnfolderBase]: For 13828/15638 co-relation queries the response was YES. [2025-02-06 18:43:54,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180496 conditions, 91483 events. 56029/91483 cut-off events. For 13828/15638 co-relation queries the response was YES. Maximal size of possible extension queue 1922. Compared 791789 event pairs, 19257 based on Foata normal form. 672/86218 useless extension candidates. Maximal degree in co-relation 180485. Up to 33518 conditions per place. [2025-02-06 18:43:55,234 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 128 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2025-02-06 18:43:55,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 163 transitions, 680 flow [2025-02-06 18:43:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:43:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:43:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 276 transitions. [2025-02-06 18:43:55,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7561643835616438 [2025-02-06 18:43:55,238 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 166 flow. Second operand 5 states and 276 transitions. [2025-02-06 18:43:55,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 163 transitions, 680 flow [2025-02-06 18:43:55,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 163 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:43:55,361 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 232 flow [2025-02-06 18:43:55,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2025-02-06 18:43:55,362 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2025-02-06 18:43:55,362 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 232 flow [2025-02-06 18:43:55,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 18:43:55,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:55,362 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:43:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:43:55,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:43:55,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1802900673, now seen corresponding path program 1 times [2025-02-06 18:43:55,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:55,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209929231] [2025-02-06 18:43:55,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:43:55,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:55,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:43:55,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:43:55,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:43:55,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:55,512 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 18:43:55,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:55,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209929231] [2025-02-06 18:43:55,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209929231] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:43:55,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:43:55,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:43:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952092861] [2025-02-06 18:43:55,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:43:55,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:43:55,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:55,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:43:55,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:43:55,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2025-02-06 18:43:55,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 18:43:55,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:55,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2025-02-06 18:43:55,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:01,846 INFO L124 PetriNetUnfolderBase]: 74661/120269 cut-off events. [2025-02-06 18:44:01,846 INFO L125 PetriNetUnfolderBase]: For 46274/48926 co-relation queries the response was YES. [2025-02-06 18:44:02,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260629 conditions, 120269 events. 74661/120269 cut-off events. For 46274/48926 co-relation queries the response was YES. Maximal size of possible extension queue 2574. Compared 1063979 event pairs, 19623 based on Foata normal form. 1848/116941 useless extension candidates. Maximal degree in co-relation 260613. Up to 46241 conditions per place. [2025-02-06 18:44:02,518 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 130 selfloop transitions, 15 changer transitions 0/171 dead transitions. [2025-02-06 18:44:02,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 171 transitions, 792 flow [2025-02-06 18:44:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:44:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:44:02,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2025-02-06 18:44:02,520 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7534246575342466 [2025-02-06 18:44:02,520 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 232 flow. Second operand 5 states and 275 transitions. [2025-02-06 18:44:02,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 171 transitions, 792 flow [2025-02-06 18:44:02,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 792 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:44:02,836 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 358 flow [2025-02-06 18:44:02,837 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2025-02-06 18:44:02,838 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 15 predicate places. [2025-02-06 18:44:02,838 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 358 flow [2025-02-06 18:44:02,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 18:44:02,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:02,838 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:02,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:44:02,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:44:02,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1648349818, now seen corresponding path program 1 times [2025-02-06 18:44:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:02,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771449993] [2025-02-06 18:44:02,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:02,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:44:02,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:44:02,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:02,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:44:02,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:02,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771449993] [2025-02-06 18:44:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771449993] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:44:02,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813150504] [2025-02-06 18:44:02,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:02,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:44:02,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:02,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:44:02,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:44:02,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2025-02-06 18:44:02,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 18:44:02,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:02,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2025-02-06 18:44:02,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:44:11,089 INFO L124 PetriNetUnfolderBase]: 85619/132393 cut-off events. [2025-02-06 18:44:11,089 INFO L125 PetriNetUnfolderBase]: For 113414/116854 co-relation queries the response was YES. [2025-02-06 18:44:11,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314695 conditions, 132393 events. 85619/132393 cut-off events. For 113414/116854 co-relation queries the response was YES. Maximal size of possible extension queue 2638. Compared 1111341 event pairs, 16793 based on Foata normal form. 1178/128673 useless extension candidates. Maximal degree in co-relation 314673. Up to 46913 conditions per place. [2025-02-06 18:44:11,989 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 239 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2025-02-06 18:44:11,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 284 transitions, 1414 flow [2025-02-06 18:44:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 18:44:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 18:44:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 481 transitions. [2025-02-06 18:44:11,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7321156773211568 [2025-02-06 18:44:11,991 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 358 flow. Second operand 9 states and 481 transitions. [2025-02-06 18:44:11,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 284 transitions, 1414 flow [2025-02-06 18:44:12,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 284 transitions, 1406 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-02-06 18:44:12,630 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 474 flow [2025-02-06 18:44:12,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=474, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2025-02-06 18:44:12,630 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 28 predicate places. [2025-02-06 18:44:12,630 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 474 flow [2025-02-06 18:44:12,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 18:44:12,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:44:12,631 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:44:12,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:44:12,631 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-06 18:44:12,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:44:12,632 INFO L85 PathProgramCache]: Analyzing trace with hash -440762811, now seen corresponding path program 1 times [2025-02-06 18:44:12,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:44:12,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181880477] [2025-02-06 18:44:12,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:44:12,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:44:12,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 18:44:12,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 18:44:12,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:44:12,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:44:12,727 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 18:44:12,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:44:12,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181880477] [2025-02-06 18:44:12,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181880477] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:44:12,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:44:12,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:44:12,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48311064] [2025-02-06 18:44:12,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:44:12,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:44:12,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:44:12,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:44:12,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:44:12,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2025-02-06 18:44:12,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 18:44:12,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:44:12,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2025-02-06 18:44:12,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand