./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.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 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:03:43,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:03:43,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:03:43,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:03:43,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:03:43,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:03:43,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:03:43,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:03:43,808 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:03:43,809 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:03:43,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:03:43,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:03:43,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:03:43,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:03:43,810 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:03:43,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:03:43,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:03:43,811 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:03:43,812 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:03:43,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:03:43,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:03:43,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:03:43,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:03:43,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:03:43,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:03:43,812 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:03:43,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:03:43,813 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 -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2025-02-08 14:03:44,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:03:44,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:03:44,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:03:44,025 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:03:44,025 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:03:44,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2025-02-08 14:03:45,174 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5b485f4e/01e1e352b1114c9199ed61443e3d4413/FLAG2c1efaf25 [2025-02-08 14:03:45,496 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:03:45,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2025-02-08 14:03:45,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5b485f4e/01e1e352b1114c9199ed61443e3d4413/FLAG2c1efaf25 [2025-02-08 14:03:45,736 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5b485f4e/01e1e352b1114c9199ed61443e3d4413 [2025-02-08 14:03:45,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:03:45,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:03:45,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:03:45,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:03:45,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:03:45,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:03:45" (1/1) ... [2025-02-08 14:03:45,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10910752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:45, skipping insertion in model container [2025-02-08 14:03:45,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:03:45" (1/1) ... [2025-02-08 14:03:45,774 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:03:46,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:03:46,063 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:03:46,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:03:46,145 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:03:46,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46 WrapperNode [2025-02-08 14:03:46,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:03:46,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:03:46,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:03:46,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:03:46,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,175 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2025-02-08 14:03:46,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:03:46,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:03:46,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:03:46,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:03:46,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,194 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]. [2025-02-08 14:03:46,194 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,202 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:03:46,207 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:03:46,207 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:03:46,207 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:03:46,208 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (1/1) ... [2025-02-08 14:03:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:03:46,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:46,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:03:46,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:03:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:03:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:03:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:03:46,250 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:03:46,338 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:03:46,340 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:03:46,459 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:03:46,459 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:03:46,619 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:03:46,619 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:03:46,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:46 BoogieIcfgContainer [2025-02-08 14:03:46,620 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:03:46,624 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:03:46,624 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:03:46,628 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:03:46,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:03:45" (1/3) ... [2025-02-08 14:03:46,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73416e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:03:46, skipping insertion in model container [2025-02-08 14:03:46,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:46" (2/3) ... [2025-02-08 14:03:46,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73416e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:03:46, skipping insertion in model container [2025-02-08 14:03:46,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:46" (3/3) ... [2025-02-08 14:03:46,631 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2025-02-08 14:03:46,642 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:03:46,644 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_12-ptr_nr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 14:03:46,645 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:03:46,692 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 14:03:46,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2025-02-08 14:03:46,750 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-02-08 14:03:46,752 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:03:46,754 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 31 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. [2025-02-08 14:03:46,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2025-02-08 14:03:46,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-02-08 14:03:46,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:03:46,775 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;@60c2432c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:03:46,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 14:03:46,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:03:46,782 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-02-08 14:03:46,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:46,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:46,782 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:03:46,783 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)] === [2025-02-08 14:03:46,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1343248990, now seen corresponding path program 1 times [2025-02-08 14:03:46,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:46,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852862156] [2025-02-08 14:03:46,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:46,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:46,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:03:46,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:03:46,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:46,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852862156] [2025-02-08 14:03:47,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852862156] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:47,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:47,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:47,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10473381] [2025-02-08 14:03:47,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:47,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:03:47,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:47,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:03:47,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:03:47,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2025-02-08 14:03:47,160 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) [2025-02-08 14:03:47,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:47,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2025-02-08 14:03:47,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:47,247 INFO L124 PetriNetUnfolderBase]: 33/98 cut-off events. [2025-02-08 14:03:47,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:47,249 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 316 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. [2025-02-08 14:03:47,250 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 22 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2025-02-08 14:03:47,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 38 transitions, 145 flow [2025-02-08 14:03:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:03:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:03:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2025-02-08 14:03:47,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5289855072463768 [2025-02-08 14:03:47,259 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 73 transitions. [2025-02-08 14:03:47,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 38 transitions, 145 flow [2025-02-08 14:03:47,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 38 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:47,263 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 80 flow [2025-02-08 14:03:47,264 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} [2025-02-08 14:03:47,266 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2025-02-08 14:03:47,266 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 80 flow [2025-02-08 14:03:47,267 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) [2025-02-08 14:03:47,267 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:47,267 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:03:47,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:03:47,267 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)] === [2025-02-08 14:03:47,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:47,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1343353102, now seen corresponding path program 1 times [2025-02-08 14:03:47,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:47,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077092574] [2025-02-08 14:03:47,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:47,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:47,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:03:47,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:03:47,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:47,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:47,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:47,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077092574] [2025-02-08 14:03:47,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077092574] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:47,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:47,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:03:47,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486096248] [2025-02-08 14:03:47,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:47,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:47,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:47,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:47,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:47,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2025-02-08 14:03:47,428 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) [2025-02-08 14:03:47,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:47,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2025-02-08 14:03:47,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:47,516 INFO L124 PetriNetUnfolderBase]: 26/91 cut-off events. [2025-02-08 14:03:47,516 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-02-08 14:03:47,517 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 297 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. [2025-02-08 14:03:47,517 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 19 selfloop transitions, 5 changer transitions 4/33 dead transitions. [2025-02-08 14:03:47,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 167 flow [2025-02-08 14:03:47,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:03:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:03:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2025-02-08 14:03:47,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5304347826086957 [2025-02-08 14:03:47,518 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 80 flow. Second operand 5 states and 61 transitions. [2025-02-08 14:03:47,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 167 flow [2025-02-08 14:03:47,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 158 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:47,520 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 100 flow [2025-02-08 14:03:47,520 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} [2025-02-08 14:03:47,520 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2025-02-08 14:03:47,520 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 100 flow [2025-02-08 14:03:47,520 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) [2025-02-08 14:03:47,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:47,520 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:47,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:03:47,521 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)] === [2025-02-08 14:03:47,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:47,521 INFO L85 PathProgramCache]: Analyzing trace with hash 640237260, now seen corresponding path program 1 times [2025-02-08 14:03:47,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:47,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111433008] [2025-02-08 14:03:47,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:47,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:47,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:03:47,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:03:47,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:47,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:47,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:47,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:47,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111433008] [2025-02-08 14:03:47,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111433008] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:47,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:47,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:47,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095305944] [2025-02-08 14:03:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:47,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:03:47,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:47,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:03:47,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:03:47,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 23 [2025-02-08 14:03:47,620 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) [2025-02-08 14:03:47,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:47,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 23 [2025-02-08 14:03:47,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:47,671 INFO L124 PetriNetUnfolderBase]: 12/56 cut-off events. [2025-02-08 14:03:47,672 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-02-08 14:03:47,672 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 135 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. [2025-02-08 14:03:47,672 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 17 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2025-02-08 14:03:47,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 28 transitions, 156 flow [2025-02-08 14:03:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:03:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:03:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2025-02-08 14:03:47,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2025-02-08 14:03:47,674 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 100 flow. Second operand 3 states and 42 transitions. [2025-02-08 14:03:47,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 28 transitions, 156 flow [2025-02-08 14:03:47,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 148 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:47,676 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 100 flow [2025-02-08 14:03:47,676 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} [2025-02-08 14:03:47,676 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2025-02-08 14:03:47,676 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 100 flow [2025-02-08 14:03:47,677 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) [2025-02-08 14:03:47,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:47,677 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:47,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:03:47,677 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)] === [2025-02-08 14:03:47,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1116956186, now seen corresponding path program 1 times [2025-02-08 14:03:47,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:47,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051695533] [2025-02-08 14:03:47,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:47,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:03:47,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:03:47,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:47,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:47,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:47,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051695533] [2025-02-08 14:03:47,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051695533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:47,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:47,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:47,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106087021] [2025-02-08 14:03:47,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:47,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:47,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:47,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:47,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:47,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:47,933 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) [2025-02-08 14:03:47,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:47,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:47,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:48,043 INFO L124 PetriNetUnfolderBase]: 13/65 cut-off events. [2025-02-08 14:03:48,044 INFO L125 PetriNetUnfolderBase]: For 39/41 co-relation queries the response was YES. [2025-02-08 14:03:48,044 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 184 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. [2025-02-08 14:03:48,044 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 23 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2025-02-08 14:03:48,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 208 flow [2025-02-08 14:03:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:03:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:03:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 65 transitions. [2025-02-08 14:03:48,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3532608695652174 [2025-02-08 14:03:48,049 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 100 flow. Second operand 8 states and 65 transitions. [2025-02-08 14:03:48,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 208 flow [2025-02-08 14:03:48,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 35 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:48,050 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 154 flow [2025-02-08 14:03:48,051 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} [2025-02-08 14:03:48,052 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 21 predicate places. [2025-02-08 14:03:48,060 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 154 flow [2025-02-08 14:03:48,064 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) [2025-02-08 14:03:48,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:48,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:48,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:03:48,069 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)] === [2025-02-08 14:03:48,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:48,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1205375206, now seen corresponding path program 2 times [2025-02-08 14:03:48,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:48,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899270559] [2025-02-08 14:03:48,070 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:03:48,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:48,093 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:03:48,096 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:03:48,096 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:03:48,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:48,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:48,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899270559] [2025-02-08 14:03:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899270559] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:48,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:48,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135601246] [2025-02-08 14:03:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:48,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:48,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:48,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:48,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:48,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:48,237 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) [2025-02-08 14:03:48,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:48,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:48,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:48,343 INFO L124 PetriNetUnfolderBase]: 12/71 cut-off events. [2025-02-08 14:03:48,343 INFO L125 PetriNetUnfolderBase]: For 112/114 co-relation queries the response was YES. [2025-02-08 14:03:48,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 71 events. 12/71 cut-off events. For 112/114 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 231 event pairs, 9 based on Foata normal form. 3/74 useless extension candidates. Maximal degree in co-relation 197. Up to 34 conditions per place. [2025-02-08 14:03:48,345 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 22 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2025-02-08 14:03:48,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 36 transitions, 256 flow [2025-02-08 14:03:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:03:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:03:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 62 transitions. [2025-02-08 14:03:48,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33695652173913043 [2025-02-08 14:03:48,346 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 154 flow. Second operand 8 states and 62 transitions. [2025-02-08 14:03:48,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 36 transitions, 256 flow [2025-02-08 14:03:48,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 36 transitions, 250 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:48,348 INFO L231 Difference]: Finished difference. Result has 55 places, 31 transitions, 214 flow [2025-02-08 14:03:48,348 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} [2025-02-08 14:03:48,349 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 31 predicate places. [2025-02-08 14:03:48,349 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 31 transitions, 214 flow [2025-02-08 14:03:48,349 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) [2025-02-08 14:03:48,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:48,349 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:48,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:03:48,350 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)] === [2025-02-08 14:03:48,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash 501578857, now seen corresponding path program 1 times [2025-02-08 14:03:48,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:48,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177793350] [2025-02-08 14:03:48,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:48,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:48,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:03:48,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:03:48,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:48,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:48,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:48,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177793350] [2025-02-08 14:03:48,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177793350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:48,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:48,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:48,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034757702] [2025-02-08 14:03:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:48,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:48,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:48,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:48,542 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) [2025-02-08 14:03:48,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:48,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:48,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:48,633 INFO L124 PetriNetUnfolderBase]: 11/68 cut-off events. [2025-02-08 14:03:48,635 INFO L125 PetriNetUnfolderBase]: For 183/185 co-relation queries the response was YES. [2025-02-08 14:03:48,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 68 events. 11/68 cut-off events. For 183/185 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 218 event pairs, 2 based on Foata normal form. 4/72 useless extension candidates. Maximal degree in co-relation 211. Up to 20 conditions per place. [2025-02-08 14:03:48,637 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 25 selfloop transitions, 9 changer transitions 0/37 dead transitions. [2025-02-08 14:03:48,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 37 transitions, 295 flow [2025-02-08 14:03:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:03:48,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:03:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 57 transitions. [2025-02-08 14:03:48,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35403726708074534 [2025-02-08 14:03:48,639 INFO L175 Difference]: Start difference. First operand has 55 places, 31 transitions, 214 flow. Second operand 7 states and 57 transitions. [2025-02-08 14:03:48,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 37 transitions, 295 flow [2025-02-08 14:03:48,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 37 transitions, 282 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:48,643 INFO L231 Difference]: Finished difference. Result has 58 places, 30 transitions, 215 flow [2025-02-08 14:03:48,644 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} [2025-02-08 14:03:48,644 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2025-02-08 14:03:48,645 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 30 transitions, 215 flow [2025-02-08 14:03:48,645 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) [2025-02-08 14:03:48,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:48,645 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:48,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:03:48,645 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)] === [2025-02-08 14:03:48,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1733205512, now seen corresponding path program 3 times [2025-02-08 14:03:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:48,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276451875] [2025-02-08 14:03:48,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:03:48,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:48,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:03:48,675 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:03:48,675 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:03:48,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:48,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:48,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276451875] [2025-02-08 14:03:48,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276451875] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:48,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:48,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:48,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734867926] [2025-02-08 14:03:48,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:48,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:48,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:48,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:48,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:48,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:48,790 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) [2025-02-08 14:03:48,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:48,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:48,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:48,961 INFO L124 PetriNetUnfolderBase]: 11/66 cut-off events. [2025-02-08 14:03:48,961 INFO L125 PetriNetUnfolderBase]: For 196/198 co-relation queries the response was YES. [2025-02-08 14:03:48,962 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 205 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. [2025-02-08 14:03:48,962 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 20 selfloop transitions, 11 changer transitions 0/34 dead transitions. [2025-02-08 14:03:48,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 34 transitions, 283 flow [2025-02-08 14:03:48,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:03:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:03:48,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 59 transitions. [2025-02-08 14:03:48,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32065217391304346 [2025-02-08 14:03:48,967 INFO L175 Difference]: Start difference. First operand has 58 places, 30 transitions, 215 flow. Second operand 8 states and 59 transitions. [2025-02-08 14:03:48,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 34 transitions, 283 flow [2025-02-08 14:03:48,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 34 transitions, 252 flow, removed 4 selfloop flow, removed 8 redundant places. [2025-02-08 14:03:48,969 INFO L231 Difference]: Finished difference. Result has 56 places, 29 transitions, 198 flow [2025-02-08 14:03:48,969 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} [2025-02-08 14:03:48,970 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 32 predicate places. [2025-02-08 14:03:48,970 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 29 transitions, 198 flow [2025-02-08 14:03:48,970 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) [2025-02-08 14:03:48,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:48,970 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:48,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:03:48,970 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)] === [2025-02-08 14:03:48,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:48,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1630924433, now seen corresponding path program 1 times [2025-02-08 14:03:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:48,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648094197] [2025-02-08 14:03:48,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:49,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:03:49,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:03:49,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:49,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:49,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:49,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:49,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648094197] [2025-02-08 14:03:49,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648094197] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:49,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:49,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:49,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852870230] [2025-02-08 14:03:49,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:49,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:49,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:49,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:49,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:49,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:49,367 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) [2025-02-08 14:03:49,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:49,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:49,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:49,491 INFO L124 PetriNetUnfolderBase]: 10/64 cut-off events. [2025-02-08 14:03:49,491 INFO L125 PetriNetUnfolderBase]: For 172/174 co-relation queries the response was YES. [2025-02-08 14:03:49,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 64 events. 10/64 cut-off events. For 172/174 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 200 event pairs, 2 based on Foata normal form. 4/68 useless extension candidates. Maximal degree in co-relation 199. Up to 19 conditions per place. [2025-02-08 14:03:49,492 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 14 selfloop transitions, 8 changer transitions 10/35 dead transitions. [2025-02-08 14:03:49,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 35 transitions, 275 flow [2025-02-08 14:03:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 14:03:49,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 14:03:49,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 64 transitions. [2025-02-08 14:03:49,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30917874396135264 [2025-02-08 14:03:49,493 INFO L175 Difference]: Start difference. First operand has 56 places, 29 transitions, 198 flow. Second operand 9 states and 64 transitions. [2025-02-08 14:03:49,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 35 transitions, 275 flow [2025-02-08 14:03:49,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 35 transitions, 238 flow, removed 4 selfloop flow, removed 8 redundant places. [2025-02-08 14:03:49,494 INFO L231 Difference]: Finished difference. Result has 55 places, 23 transitions, 149 flow [2025-02-08 14:03:49,494 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} [2025-02-08 14:03:49,495 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 31 predicate places. [2025-02-08 14:03:49,495 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 23 transitions, 149 flow [2025-02-08 14:03:49,495 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) [2025-02-08 14:03:49,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:49,495 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:49,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:03:49,495 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)] === [2025-02-08 14:03:49,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1344240122, now seen corresponding path program 1 times [2025-02-08 14:03:49,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:49,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859669545] [2025-02-08 14:03:49,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:49,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:49,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:03:49,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:03:49,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:49,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:49,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:49,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859669545] [2025-02-08 14:03:49,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859669545] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:49,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:49,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183768474] [2025-02-08 14:03:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:49,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:49,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:49,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:49,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:49,607 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:49,607 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) [2025-02-08 14:03:49,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:49,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:49,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:49,663 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2025-02-08 14:03:49,664 INFO L125 PetriNetUnfolderBase]: For 96/98 co-relation queries the response was YES. [2025-02-08 14:03:49,664 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. [2025-02-08 14:03:49,664 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 11 selfloop transitions, 4 changer transitions 9/27 dead transitions. [2025-02-08 14:03:49,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 27 transitions, 202 flow [2025-02-08 14:03:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:03:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:03:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 50 transitions. [2025-02-08 14:03:49,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3105590062111801 [2025-02-08 14:03:49,666 INFO L175 Difference]: Start difference. First operand has 55 places, 23 transitions, 149 flow. Second operand 7 states and 50 transitions. [2025-02-08 14:03:49,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 27 transitions, 202 flow [2025-02-08 14:03:49,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 27 transitions, 156 flow, removed 2 selfloop flow, removed 10 redundant places. [2025-02-08 14:03:49,666 INFO L231 Difference]: Finished difference. Result has 42 places, 18 transitions, 83 flow [2025-02-08 14:03:49,667 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} [2025-02-08 14:03:49,667 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 18 predicate places. [2025-02-08 14:03:49,667 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 18 transitions, 83 flow [2025-02-08 14:03:49,667 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) [2025-02-08 14:03:49,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:49,667 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:49,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:03:49,667 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)] === [2025-02-08 14:03:49,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:49,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1288074486, now seen corresponding path program 2 times [2025-02-08 14:03:49,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:49,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109150484] [2025-02-08 14:03:49,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:03:49,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:49,684 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:03:49,686 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:03:49,686 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:03:49,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:49,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:49,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109150484] [2025-02-08 14:03:49,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109150484] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:49,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:49,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:49,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132721314] [2025-02-08 14:03:49,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:49,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:49,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:49,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:49,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:49,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:49,798 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) [2025-02-08 14:03:49,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:49,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:49,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:49,856 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2025-02-08 14:03:49,856 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-02-08 14:03:49,856 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. [2025-02-08 14:03:49,856 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 8 selfloop transitions, 3 changer transitions 5/19 dead transitions. [2025-02-08 14:03:49,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 19 transitions, 113 flow [2025-02-08 14:03:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:03:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:03:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 45 transitions. [2025-02-08 14:03:49,857 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2795031055900621 [2025-02-08 14:03:49,857 INFO L175 Difference]: Start difference. First operand has 42 places, 18 transitions, 83 flow. Second operand 7 states and 45 transitions. [2025-02-08 14:03:49,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 19 transitions, 113 flow [2025-02-08 14:03:49,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 19 transitions, 96 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 14:03:49,858 INFO L231 Difference]: Finished difference. Result has 34 places, 14 transitions, 51 flow [2025-02-08 14:03:49,858 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} [2025-02-08 14:03:49,858 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 10 predicate places. [2025-02-08 14:03:49,858 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 14 transitions, 51 flow [2025-02-08 14:03:49,859 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) [2025-02-08 14:03:49,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:49,859 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:49,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:03:49,859 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)] === [2025-02-08 14:03:49,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:49,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2134352268, now seen corresponding path program 3 times [2025-02-08 14:03:49,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:49,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981823981] [2025-02-08 14:03:49,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:03:49,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:49,874 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:03:49,876 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:03:49,876 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:03:49,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:49,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:49,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981823981] [2025-02-08 14:03:49,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981823981] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:49,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:49,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:03:49,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919921256] [2025-02-08 14:03:49,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:49,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:03:49,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:49,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:03:49,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:03:49,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2025-02-08 14:03:49,972 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) [2025-02-08 14:03:49,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:49,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2025-02-08 14:03:49,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:50,024 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2025-02-08 14:03:50,025 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 14:03:50,025 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. [2025-02-08 14:03:50,025 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2025-02-08 14:03:50,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 14 transitions, 71 flow [2025-02-08 14:03:50,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:03:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:03:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2025-02-08 14:03:50,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2484472049689441 [2025-02-08 14:03:50,026 INFO L175 Difference]: Start difference. First operand has 34 places, 14 transitions, 51 flow. Second operand 7 states and 40 transitions. [2025-02-08 14:03:50,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 14 transitions, 71 flow [2025-02-08 14:03:50,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 14 transitions, 57 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-08 14:03:50,026 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2025-02-08 14:03:50,026 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} [2025-02-08 14:03:50,027 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2025-02-08 14:03:50,027 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2025-02-08 14:03:50,027 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) [2025-02-08 14:03:50,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-02-08 14:03:50,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-02-08 14:03:50,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-02-08 14:03:50,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-02-08 14:03:50,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-02-08 14:03:50,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-02-08 14:03:50,030 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-02-08 14:03:50,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:03:50,031 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2025-02-08 14:03:50,034 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:03:50,034 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:03:50,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:03:50 BasicIcfg [2025-02-08 14:03:50,037 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:03:50,037 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:03:50,037 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:03:50,038 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:03:50,038 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:46" (3/4) ... [2025-02-08 14:03:50,039 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:03:50,041 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 14:03:50,043 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2025-02-08 14:03:50,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-02-08 14:03:50,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 14:03:50,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 14:03:50,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:03:50,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:03:50,102 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:03:50,103 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:03:50,103 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:03:50,104 INFO L158 Benchmark]: Toolchain (without parser) took 4364.45ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 109.3MB in the beginning and 256.7MB in the end (delta: -147.4MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2025-02-08 14:03:50,104 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:50,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.91ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 82.0MB in the end (delta: 27.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:03:50,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.98ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:50,106 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 78.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:03:50,106 INFO L158 Benchmark]: IcfgBuilder took 413.02ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 105.9MB in the end (delta: -27.8MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2025-02-08 14:03:50,107 INFO L158 Benchmark]: TraceAbstraction took 3413.08ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 35.0MB in the end (delta: 70.2MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2025-02-08 14:03:50,107 INFO L158 Benchmark]: Witness Printer took 65.50ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 35.0MB in the beginning and 256.7MB in the end (delta: -221.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:03:50,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.91ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 82.0MB in the end (delta: 27.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.98ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 78.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 413.02ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 105.9MB in the end (delta: -27.8MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3413.08ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 35.0MB in the end (delta: 70.2MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Witness Printer took 65.50ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 35.0MB in the beginning and 256.7MB in the end (delta: -221.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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: 3.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 306 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 341 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1000 IncrementalHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 35 mSDtfsCounter, 1000 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, 0.5s 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s 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! [2025-02-08 14:03:50,121 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