./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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/pthread/triangular-longer-2.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 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:33:50,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:33:50,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:33:50,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:33:50,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:33:50,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:33:50,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:33:50,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:33:50,442 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:33:50,442 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:33:50,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:33:50,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:33:50,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:33:50,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:33:50,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:33:50,444 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:33:50,445 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:33:50,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:33:50,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:33:50,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:33:50,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:33:50,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:33:50,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:33:50,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:33:50,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:33:50,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:33:50,447 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 -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2025-01-10 06:33:50,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:33:50,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:33:50,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:33:50,694 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:33:50,694 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:33:50,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-2.i [2025-01-10 06:33:51,864 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f35a260b/31a84238a7324fc384160d2116d0a6f1/FLAGbb012659b [2025-01-10 06:33:52,122 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:33:52,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i [2025-01-10 06:33:52,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f35a260b/31a84238a7324fc384160d2116d0a6f1/FLAGbb012659b [2025-01-10 06:33:52,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f35a260b/31a84238a7324fc384160d2116d0a6f1 [2025-01-10 06:33:52,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:33:52,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:33:52,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:33:52,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:33:52,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:33:52,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9010d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52, skipping insertion in model container [2025-01-10 06:33:52,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:33:52,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:33:52,733 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:33:52,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:33:52,794 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:33:52,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52 WrapperNode [2025-01-10 06:33:52,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:33:52,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:33:52,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:33:52,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:33:52,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,825 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-01-10 06:33:52,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:33:52,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:33:52,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:33:52,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:33:52,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,846 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:33:52,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,849 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:33:52,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:33:52,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:33:52,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:33:52,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (1/1) ... [2025-01-10 06:33:52,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:33:52,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:52,885 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) [2025-01-10 06:33:52,887 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 [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-10 06:33:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-10 06:33:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:33:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:33:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:33:52,907 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:33:52,991 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:33:52,993 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:33:53,099 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:33:53,100 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:33:53,163 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:33:53,163 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:33:53,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:33:53 BoogieIcfgContainer [2025-01-10 06:33:53,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:33:53,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:33:53,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:33:53,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:33:53,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:33:52" (1/3) ... [2025-01-10 06:33:53,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749cbffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:33:53, skipping insertion in model container [2025-01-10 06:33:53,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:52" (2/3) ... [2025-01-10 06:33:53,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749cbffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:33:53, skipping insertion in model container [2025-01-10 06:33:53,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:33:53" (3/3) ... [2025-01-10 06:33:53,171 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2025-01-10 06:33:53,184 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:33:53,185 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-2.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-01-10 06:33:53,185 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:33:53,221 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:33:53,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 72 flow [2025-01-10 06:33:53,265 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2025-01-10 06:33:53,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:33:53,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 73 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2025-01-10 06:33:53,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 72 flow [2025-01-10 06:33:53,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 66 flow [2025-01-10 06:33:53,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:33:53,289 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;@71e15214, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:33:53,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-01-10 06:33:53,295 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:33:53,296 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-01-10 06:33:53,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:33:53,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:53,297 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:33:53,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:53,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:53,302 INFO L85 PathProgramCache]: Analyzing trace with hash 200350461, now seen corresponding path program 1 times [2025-01-10 06:33:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:53,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030898037] [2025-01-10 06:33:53,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:53,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:53,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:33:53,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:33:53,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:53,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:53,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:53,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030898037] [2025-01-10 06:33:53,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030898037] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:53,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:53,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:33:53,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998550193] [2025-01-10 06:33:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:53,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:33:53,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:53,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:33:53,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:33:53,528 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:53,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-10 06:33:53,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:53,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:53,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:53,701 INFO L124 PetriNetUnfolderBase]: 288/572 cut-off events. [2025-01-10 06:33:53,703 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:33:53,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 572 events. 288/572 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3043 event pairs, 118 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 1045. Up to 241 conditions per place. [2025-01-10 06:33:53,710 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2025-01-10 06:33:53,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 150 flow [2025-01-10 06:33:53,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:33:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:33:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2025-01-10 06:33:53,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2025-01-10 06:33:53,721 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 73 transitions. [2025-01-10 06:33:53,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 150 flow [2025-01-10 06:33:53,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:33:53,726 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2025-01-10 06:33:53,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2025-01-10 06:33:53,731 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2025-01-10 06:33:53,731 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2025-01-10 06:33:53,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-10 06:33:53,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:53,732 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:33:53,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:33:53,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:53,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:53,734 INFO L85 PathProgramCache]: Analyzing trace with hash 200350462, now seen corresponding path program 1 times [2025-01-10 06:33:53,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:53,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774977587] [2025-01-10 06:33:53,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:53,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:53,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:33:53,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:33:53,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:53,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:53,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:53,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774977587] [2025-01-10 06:33:53,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774977587] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:53,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:53,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:33:53,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545201929] [2025-01-10 06:33:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:53,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:33:53,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:53,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:33:53,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:33:53,791 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:53,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-10 06:33:53,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:53,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:53,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:53,873 INFO L124 PetriNetUnfolderBase]: 279/583 cut-off events. [2025-01-10 06:33:53,874 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2025-01-10 06:33:53,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 583 events. 279/583 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3038 event pairs, 102 based on Foata normal form. 16/530 useless extension candidates. Maximal degree in co-relation 1151. Up to 266 conditions per place. [2025-01-10 06:33:53,880 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2025-01-10 06:33:53,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 174 flow [2025-01-10 06:33:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:33:53,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:33:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-01-10 06:33:53,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-01-10 06:33:53,883 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 3 states and 72 transitions. [2025-01-10 06:33:53,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 174 flow [2025-01-10 06:33:53,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:33:53,884 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 100 flow [2025-01-10 06:33:53,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2025-01-10 06:33:53,887 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2025-01-10 06:33:53,887 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 100 flow [2025-01-10 06:33:53,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-10 06:33:53,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:53,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:53,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:33:53,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:53,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash -736727232, now seen corresponding path program 1 times [2025-01-10 06:33:53,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:53,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248508877] [2025-01-10 06:33:53,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:53,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:53,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:33:53,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:33:53,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:53,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:53,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248508877] [2025-01-10 06:33:53,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248508877] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:53,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:53,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:33:53,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610035881] [2025-01-10 06:33:53,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:53,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:53,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:53,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:53,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:53,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2025-01-10 06:33:53,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2025-01-10 06:33:53,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:53,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2025-01-10 06:33:53,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:54,173 INFO L124 PetriNetUnfolderBase]: 661/1318 cut-off events. [2025-01-10 06:33:54,173 INFO L125 PetriNetUnfolderBase]: For 433/433 co-relation queries the response was YES. [2025-01-10 06:33:54,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 1318 events. 661/1318 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8082 event pairs, 260 based on Foata normal form. 64/1231 useless extension candidates. Maximal degree in co-relation 2730. Up to 721 conditions per place. [2025-01-10 06:33:54,183 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2025-01-10 06:33:54,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 302 flow [2025-01-10 06:33:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:33:54,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:33:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2025-01-10 06:33:54,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265625 [2025-01-10 06:33:54,186 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 100 flow. Second operand 4 states and 93 transitions. [2025-01-10 06:33:54,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 302 flow [2025-01-10 06:33:54,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:33:54,189 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 120 flow [2025-01-10 06:33:54,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2025-01-10 06:33:54,190 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2025-01-10 06:33:54,190 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 120 flow [2025-01-10 06:33:54,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2025-01-10 06:33:54,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:54,191 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:54,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:33:54,191 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:54,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash -745241499, now seen corresponding path program 1 times [2025-01-10 06:33:54,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:54,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635215974] [2025-01-10 06:33:54,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:54,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:54,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:33:54,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:33:54,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:54,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:54,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:54,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:54,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635215974] [2025-01-10 06:33:54,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635215974] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:54,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:54,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:33:54,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507588943] [2025-01-10 06:33:54,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:54,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:33:54,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:54,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:33:54,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:33:54,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:54,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2025-01-10 06:33:54,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:54,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:54,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:54,333 INFO L124 PetriNetUnfolderBase]: 439/1041 cut-off events. [2025-01-10 06:33:54,333 INFO L125 PetriNetUnfolderBase]: For 448/460 co-relation queries the response was YES. [2025-01-10 06:33:54,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2340 conditions, 1041 events. 439/1041 cut-off events. For 448/460 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6784 event pairs, 151 based on Foata normal form. 12/982 useless extension candidates. Maximal degree in co-relation 2325. Up to 459 conditions per place. [2025-01-10 06:33:54,340 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2025-01-10 06:33:54,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 267 flow [2025-01-10 06:33:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:33:54,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:33:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2025-01-10 06:33:54,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.78125 [2025-01-10 06:33:54,341 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 120 flow. Second operand 3 states and 75 transitions. [2025-01-10 06:33:54,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 267 flow [2025-01-10 06:33:54,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:33:54,345 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 140 flow [2025-01-10 06:33:54,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2025-01-10 06:33:54,345 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2025-01-10 06:33:54,345 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 140 flow [2025-01-10 06:33:54,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2025-01-10 06:33:54,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:54,345 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:54,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:33:54,346 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:54,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:54,346 INFO L85 PathProgramCache]: Analyzing trace with hash -745241498, now seen corresponding path program 1 times [2025-01-10 06:33:54,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:54,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39200827] [2025-01-10 06:33:54,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:54,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:54,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:33:54,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:33:54,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:54,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:54,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:54,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39200827] [2025-01-10 06:33:54,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39200827] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:54,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:54,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:33:54,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509469889] [2025-01-10 06:33:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:54,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:33:54,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:54,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:33:54,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:33:54,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:54,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2025-01-10 06:33:54,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:54,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:54,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:54,482 INFO L124 PetriNetUnfolderBase]: 417/1031 cut-off events. [2025-01-10 06:33:54,483 INFO L125 PetriNetUnfolderBase]: For 603/615 co-relation queries the response was YES. [2025-01-10 06:33:54,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2471 conditions, 1031 events. 417/1031 cut-off events. For 603/615 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6809 event pairs, 117 based on Foata normal form. 36/1032 useless extension candidates. Maximal degree in co-relation 2453. Up to 483 conditions per place. [2025-01-10 06:33:54,488 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2025-01-10 06:33:54,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 290 flow [2025-01-10 06:33:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:33:54,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:33:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2025-01-10 06:33:54,490 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2025-01-10 06:33:54,490 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 140 flow. Second operand 3 states and 74 transitions. [2025-01-10 06:33:54,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 290 flow [2025-01-10 06:33:54,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:33:54,492 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 154 flow [2025-01-10 06:33:54,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2025-01-10 06:33:54,493 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2025-01-10 06:33:54,493 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 154 flow [2025-01-10 06:33:54,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2025-01-10 06:33:54,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:54,493 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:54,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:33:54,493 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:54,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1082466312, now seen corresponding path program 1 times [2025-01-10 06:33:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:54,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524807240] [2025-01-10 06:33:54,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:54,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:54,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:33:54,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:33:54,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:54,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:54,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:54,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524807240] [2025-01-10 06:33:54,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524807240] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:54,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:54,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:33:54,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663032104] [2025-01-10 06:33:54,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:54,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:54,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:54,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:54,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:54,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2025-01-10 06:33:54,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2025-01-10 06:33:54,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:54,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2025-01-10 06:33:54,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:54,683 INFO L124 PetriNetUnfolderBase]: 661/1349 cut-off events. [2025-01-10 06:33:54,684 INFO L125 PetriNetUnfolderBase]: For 1033/1154 co-relation queries the response was YES. [2025-01-10 06:33:54,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3369 conditions, 1349 events. 661/1349 cut-off events. For 1033/1154 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8885 event pairs, 378 based on Foata normal form. 89/1388 useless extension candidates. Maximal degree in co-relation 3350. Up to 853 conditions per place. [2025-01-10 06:33:54,691 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 51 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2025-01-10 06:33:54,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 376 flow [2025-01-10 06:33:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:33:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:33:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2025-01-10 06:33:54,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6953125 [2025-01-10 06:33:54,692 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 154 flow. Second operand 4 states and 89 transitions. [2025-01-10 06:33:54,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 376 flow [2025-01-10 06:33:54,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:33:54,696 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 174 flow [2025-01-10 06:33:54,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-01-10 06:33:54,696 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2025-01-10 06:33:54,696 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 174 flow [2025-01-10 06:33:54,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2025-01-10 06:33:54,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:54,697 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:54,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:33:54,697 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:54,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash -572130395, now seen corresponding path program 1 times [2025-01-10 06:33:54,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:54,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903463663] [2025-01-10 06:33:54,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:54,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:54,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:33:54,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:33:54,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:54,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:54,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:54,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903463663] [2025-01-10 06:33:54,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903463663] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:54,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:54,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:33:54,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307034414] [2025-01-10 06:33:54,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:54,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:54,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:54,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:54,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:54,759 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:54,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:54,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:54,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:54,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:54,931 INFO L124 PetriNetUnfolderBase]: 553/1323 cut-off events. [2025-01-10 06:33:54,932 INFO L125 PetriNetUnfolderBase]: For 1098/1191 co-relation queries the response was YES. [2025-01-10 06:33:54,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3486 conditions, 1323 events. 553/1323 cut-off events. For 1098/1191 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9426 event pairs, 147 based on Foata normal form. 87/1368 useless extension candidates. Maximal degree in co-relation 3465. Up to 422 conditions per place. [2025-01-10 06:33:54,940 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 51 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2025-01-10 06:33:54,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 435 flow [2025-01-10 06:33:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:33:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:33:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2025-01-10 06:33:54,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.74375 [2025-01-10 06:33:54,943 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 174 flow. Second operand 5 states and 119 transitions. [2025-01-10 06:33:54,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 435 flow [2025-01-10 06:33:54,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:33:54,945 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 258 flow [2025-01-10 06:33:54,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2025-01-10 06:33:54,948 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2025-01-10 06:33:54,948 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 258 flow [2025-01-10 06:33:54,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:54,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:54,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:54,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:33:54,949 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:54,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:54,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1153156442, now seen corresponding path program 1 times [2025-01-10 06:33:54,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:54,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140139227] [2025-01-10 06:33:54,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:54,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:33:54,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:33:54,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:54,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:54,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:54,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140139227] [2025-01-10 06:33:54,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140139227] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:54,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:54,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:33:54,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416185697] [2025-01-10 06:33:54,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:54,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:54,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:54,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:54,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:55,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:55,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:55,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:55,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:55,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:55,176 INFO L124 PetriNetUnfolderBase]: 608/1492 cut-off events. [2025-01-10 06:33:55,176 INFO L125 PetriNetUnfolderBase]: For 1768/1900 co-relation queries the response was YES. [2025-01-10 06:33:55,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 1492 events. 608/1492 cut-off events. For 1768/1900 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 10801 event pairs, 81 based on Foata normal form. 76/1537 useless extension candidates. Maximal degree in co-relation 4045. Up to 509 conditions per place. [2025-01-10 06:33:55,186 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 55 selfloop transitions, 12 changer transitions 0/81 dead transitions. [2025-01-10 06:33:55,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 545 flow [2025-01-10 06:33:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:33:55,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:33:55,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2025-01-10 06:33:55,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-01-10 06:33:55,188 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 258 flow. Second operand 5 states and 116 transitions. [2025-01-10 06:33:55,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 545 flow [2025-01-10 06:33:55,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 81 transitions, 543 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-01-10 06:33:55,193 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 328 flow [2025-01-10 06:33:55,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2025-01-10 06:33:55,195 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2025-01-10 06:33:55,195 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 328 flow [2025-01-10 06:33:55,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:55,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:55,196 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:55,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:33:55,196 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:55,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1153142163, now seen corresponding path program 1 times [2025-01-10 06:33:55,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:55,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474388115] [2025-01-10 06:33:55,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:55,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:55,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:33:55,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:33:55,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:55,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:55,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:55,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:55,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474388115] [2025-01-10 06:33:55,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474388115] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:55,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:55,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:33:55,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316406736] [2025-01-10 06:33:55,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:55,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:55,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:55,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:55,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:55,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:55,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:55,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:55,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:55,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:55,371 INFO L124 PetriNetUnfolderBase]: 503/1157 cut-off events. [2025-01-10 06:33:55,371 INFO L125 PetriNetUnfolderBase]: For 2241/2394 co-relation queries the response was YES. [2025-01-10 06:33:55,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3301 conditions, 1157 events. 503/1157 cut-off events. For 2241/2394 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7513 event pairs, 378 based on Foata normal form. 103/1188 useless extension candidates. Maximal degree in co-relation 3272. Up to 846 conditions per place. [2025-01-10 06:33:55,380 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 30 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2025-01-10 06:33:55,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 45 transitions, 319 flow [2025-01-10 06:33:55,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:33:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:33:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-01-10 06:33:55,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-01-10 06:33:55,382 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 328 flow. Second operand 3 states and 60 transitions. [2025-01-10 06:33:55,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 45 transitions, 319 flow [2025-01-10 06:33:55,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 45 transitions, 304 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-01-10 06:33:55,387 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 244 flow [2025-01-10 06:33:55,387 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2025-01-10 06:33:55,388 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2025-01-10 06:33:55,388 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 244 flow [2025-01-10 06:33:55,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:55,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:55,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:55,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:33:55,389 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:55,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1153142162, now seen corresponding path program 1 times [2025-01-10 06:33:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:55,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700127367] [2025-01-10 06:33:55,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:55,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:55,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:33:55,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:33:55,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:55,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:55,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:55,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700127367] [2025-01-10 06:33:55,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700127367] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:55,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:55,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:33:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493501143] [2025-01-10 06:33:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:55,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:55,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:55,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:55,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:55,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:55,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:55,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:55,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:55,592 INFO L124 PetriNetUnfolderBase]: 558/1373 cut-off events. [2025-01-10 06:33:55,592 INFO L125 PetriNetUnfolderBase]: For 1496/1616 co-relation queries the response was YES. [2025-01-10 06:33:55,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 1373 events. 558/1373 cut-off events. For 1496/1616 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9423 event pairs, 119 based on Foata normal form. 75/1409 useless extension candidates. Maximal degree in co-relation 3645. Up to 674 conditions per place. [2025-01-10 06:33:55,601 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 50 selfloop transitions, 5 changer transitions 0/69 dead transitions. [2025-01-10 06:33:55,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 69 transitions, 444 flow [2025-01-10 06:33:55,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:33:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:33:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2025-01-10 06:33:55,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.69375 [2025-01-10 06:33:55,603 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 244 flow. Second operand 5 states and 111 transitions. [2025-01-10 06:33:55,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 69 transitions, 444 flow [2025-01-10 06:33:55,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:33:55,607 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 269 flow [2025-01-10 06:33:55,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=269, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2025-01-10 06:33:55,607 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-01-10 06:33:55,607 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 269 flow [2025-01-10 06:33:55,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-01-10 06:33:55,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:55,608 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:55,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:33:55,608 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:55,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash 765712008, now seen corresponding path program 1 times [2025-01-10 06:33:55,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:55,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446925259] [2025-01-10 06:33:55,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:55,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:55,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:33:55,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:33:55,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:55,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:55,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:55,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446925259] [2025-01-10 06:33:55,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446925259] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:33:55,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906162094] [2025-01-10 06:33:55,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:55,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:55,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:55,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:33:55,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 06:33:55,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:33:55,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:33:55,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:55,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:55,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:33:55,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:33:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:55,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:33:55,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906162094] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:55,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:33:55,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-01-10 06:33:55,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854821181] [2025-01-10 06:33:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:55,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:33:55,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:55,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:33:55,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:33:55,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:33:55,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 269 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 06:33:55,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:55,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:33:55,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:55,953 INFO L124 PetriNetUnfolderBase]: 1036/2019 cut-off events. [2025-01-10 06:33:55,953 INFO L125 PetriNetUnfolderBase]: For 2495/2621 co-relation queries the response was YES. [2025-01-10 06:33:55,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5802 conditions, 2019 events. 1036/2019 cut-off events. For 2495/2621 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13172 event pairs, 224 based on Foata normal form. 117/2016 useless extension candidates. Maximal degree in co-relation 5775. Up to 785 conditions per place. [2025-01-10 06:33:55,970 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2025-01-10 06:33:55,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 540 flow [2025-01-10 06:33:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:33:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:33:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-01-10 06:33:55,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.609375 [2025-01-10 06:33:55,973 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 269 flow. Second operand 4 states and 78 transitions. [2025-01-10 06:33:55,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 540 flow [2025-01-10 06:33:55,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 524 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-01-10 06:33:55,980 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 267 flow [2025-01-10 06:33:55,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-01-10 06:33:55,981 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-01-10 06:33:55,982 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 267 flow [2025-01-10 06:33:55,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 06:33:55,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:55,982 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:33:55,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 06:33:56,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-01-10 06:33:56,184 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:56,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2032731302, now seen corresponding path program 1 times [2025-01-10 06:33:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:56,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298711066] [2025-01-10 06:33:56,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:56,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:56,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:33:56,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:33:56,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:56,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:33:56,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:56,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298711066] [2025-01-10 06:33:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298711066] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:56,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:56,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:33:56,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468582379] [2025-01-10 06:33:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:56,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:56,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:56,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:56,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:56,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:33:56,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-01-10 06:33:56,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:56,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:33:56,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:56,389 INFO L124 PetriNetUnfolderBase]: 883/1891 cut-off events. [2025-01-10 06:33:56,390 INFO L125 PetriNetUnfolderBase]: For 2721/2800 co-relation queries the response was YES. [2025-01-10 06:33:56,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5512 conditions, 1891 events. 883/1891 cut-off events. For 2721/2800 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 12779 event pairs, 246 based on Foata normal form. 108/1964 useless extension candidates. Maximal degree in co-relation 5486. Up to 726 conditions per place. [2025-01-10 06:33:56,401 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2025-01-10 06:33:56,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 534 flow [2025-01-10 06:33:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:33:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:33:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-01-10 06:33:56,402 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.609375 [2025-01-10 06:33:56,402 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 267 flow. Second operand 4 states and 78 transitions. [2025-01-10 06:33:56,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 534 flow [2025-01-10 06:33:56,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 522 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:33:56,409 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 271 flow [2025-01-10 06:33:56,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-01-10 06:33:56,409 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-01-10 06:33:56,409 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 271 flow [2025-01-10 06:33:56,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-01-10 06:33:56,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:56,410 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:56,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 06:33:56,410 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:56,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash 13406219, now seen corresponding path program 1 times [2025-01-10 06:33:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:56,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640357689] [2025-01-10 06:33:56,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:56,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:56,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:33:56,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:33:56,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:56,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:56,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640357689] [2025-01-10 06:33:56,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640357689] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:33:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151309455] [2025-01-10 06:33:56,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:56,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:56,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:56,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:33:56,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 06:33:56,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:33:56,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:33:56,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:56,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:56,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:33:56,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:33:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:56,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:33:56,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151309455] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:56,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:33:56,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-01-10 06:33:56,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498500331] [2025-01-10 06:33:56,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:56,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:33:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:56,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:33:56,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:33:56,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2025-01-10 06:33:56,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2025-01-10 06:33:56,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:56,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2025-01-10 06:33:56,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:56,751 INFO L124 PetriNetUnfolderBase]: 845/1723 cut-off events. [2025-01-10 06:33:56,751 INFO L125 PetriNetUnfolderBase]: For 3397/3453 co-relation queries the response was YES. [2025-01-10 06:33:56,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5160 conditions, 1723 events. 845/1723 cut-off events. For 3397/3453 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11298 event pairs, 70 based on Foata normal form. 125/1770 useless extension candidates. Maximal degree in co-relation 5134. Up to 562 conditions per place. [2025-01-10 06:33:56,759 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 71 selfloop transitions, 6 changer transitions 1/87 dead transitions. [2025-01-10 06:33:56,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 686 flow [2025-01-10 06:33:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:33:56,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:33:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2025-01-10 06:33:56,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2025-01-10 06:33:56,760 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 271 flow. Second operand 6 states and 116 transitions. [2025-01-10 06:33:56,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 686 flow [2025-01-10 06:33:56,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:33:56,765 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 271 flow [2025-01-10 06:33:56,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-01-10 06:33:56,766 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2025-01-10 06:33:56,766 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 271 flow [2025-01-10 06:33:56,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2025-01-10 06:33:56,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:56,767 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:56,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 06:33:56,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:56,967 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:56,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash 160065062, now seen corresponding path program 1 times [2025-01-10 06:33:56,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:56,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789788297] [2025-01-10 06:33:56,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:56,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:33:56,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:33:56,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:56,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:57,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:57,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789788297] [2025-01-10 06:33:57,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789788297] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:33:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545930035] [2025-01-10 06:33:57,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:57,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:57,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:57,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:33:57,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 06:33:57,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:33:57,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:33:57,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:57,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:57,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:33:57,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:33:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:57,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:33:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:57,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545930035] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:33:57,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:33:57,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-10 06:33:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089039336] [2025-01-10 06:33:57,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:33:57,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 06:33:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:57,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 06:33:57,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:33:57,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:57,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 271 flow. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2025-01-10 06:33:57,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:57,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:57,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:57,291 INFO L124 PetriNetUnfolderBase]: 747/1709 cut-off events. [2025-01-10 06:33:57,291 INFO L125 PetriNetUnfolderBase]: For 3576/3629 co-relation queries the response was YES. [2025-01-10 06:33:57,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5224 conditions, 1709 events. 747/1709 cut-off events. For 3576/3629 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 10704 event pairs, 71 based on Foata normal form. 140/1824 useless extension candidates. Maximal degree in co-relation 5197. Up to 289 conditions per place. [2025-01-10 06:33:57,300 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 61 selfloop transitions, 12 changer transitions 4/89 dead transitions. [2025-01-10 06:33:57,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 89 transitions, 653 flow [2025-01-10 06:33:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:33:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:33:57,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-01-10 06:33:57,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2025-01-10 06:33:57,301 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 271 flow. Second operand 7 states and 160 transitions. [2025-01-10 06:33:57,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 89 transitions, 653 flow [2025-01-10 06:33:57,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 626 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-01-10 06:33:57,307 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 375 flow [2025-01-10 06:33:57,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=375, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2025-01-10 06:33:57,307 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2025-01-10 06:33:57,307 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 375 flow [2025-01-10 06:33:57,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2025-01-10 06:33:57,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:57,308 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:57,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 06:33:57,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:57,509 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:57,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 415593026, now seen corresponding path program 1 times [2025-01-10 06:33:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:57,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311933018] [2025-01-10 06:33:57,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:57,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:57,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:33:57,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:33:57,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:57,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:33:57,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:57,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311933018] [2025-01-10 06:33:57,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311933018] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:33:57,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:33:57,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:33:57,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428131522] [2025-01-10 06:33:57,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:33:57,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:33:57,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:57,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:33:57,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:33:57,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:33:57,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 375 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-01-10 06:33:57,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:57,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:33:57,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:57,713 INFO L124 PetriNetUnfolderBase]: 1190/2257 cut-off events. [2025-01-10 06:33:57,714 INFO L125 PetriNetUnfolderBase]: For 5916/5963 co-relation queries the response was YES. [2025-01-10 06:33:57,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7478 conditions, 2257 events. 1190/2257 cut-off events. For 5916/5963 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13393 event pairs, 275 based on Foata normal form. 155/2378 useless extension candidates. Maximal degree in co-relation 7446. Up to 893 conditions per place. [2025-01-10 06:33:57,726 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 63 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2025-01-10 06:33:57,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 740 flow [2025-01-10 06:33:57,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:33:57,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:33:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2025-01-10 06:33:57,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.578125 [2025-01-10 06:33:57,727 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 375 flow. Second operand 4 states and 74 transitions. [2025-01-10 06:33:57,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 740 flow [2025-01-10 06:33:57,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 77 transitions, 705 flow, removed 11 selfloop flow, removed 3 redundant places. [2025-01-10 06:33:57,735 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 368 flow [2025-01-10 06:33:57,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=368, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2025-01-10 06:33:57,736 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2025-01-10 06:33:57,736 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 368 flow [2025-01-10 06:33:57,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-01-10 06:33:57,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:57,736 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:57,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 06:33:57,736 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:57,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:57,737 INFO L85 PathProgramCache]: Analyzing trace with hash 982258284, now seen corresponding path program 1 times [2025-01-10 06:33:57,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:57,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374546650] [2025-01-10 06:33:57,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:57,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:57,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:33:57,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:33:57,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:57,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374546650] [2025-01-10 06:33:57,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374546650] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:33:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308785598] [2025-01-10 06:33:57,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:57,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:57,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:57,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:33:57,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 06:33:57,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:33:57,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:33:57,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:57,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:57,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:33:57,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:33:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:57,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:33:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:57,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308785598] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:33:57,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:33:57,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-10 06:33:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358725262] [2025-01-10 06:33:57,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:33:57,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 06:33:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:57,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 06:33:57,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-01-10 06:33:57,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:57,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 368 flow. Second operand has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2025-01-10 06:33:57,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:57,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:57,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:58,211 INFO L124 PetriNetUnfolderBase]: 972/2188 cut-off events. [2025-01-10 06:33:58,212 INFO L125 PetriNetUnfolderBase]: For 7437/7458 co-relation queries the response was YES. [2025-01-10 06:33:58,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7026 conditions, 2188 events. 972/2188 cut-off events. For 7437/7458 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 13042 event pairs, 35 based on Foata normal form. 123/2302 useless extension candidates. Maximal degree in co-relation 6995. Up to 277 conditions per place. [2025-01-10 06:33:58,223 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 78 selfloop transitions, 17 changer transitions 17/124 dead transitions. [2025-01-10 06:33:58,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 124 transitions, 946 flow [2025-01-10 06:33:58,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 06:33:58,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 06:33:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 270 transitions. [2025-01-10 06:33:58,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2025-01-10 06:33:58,226 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 368 flow. Second operand 12 states and 270 transitions. [2025-01-10 06:33:58,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 124 transitions, 946 flow [2025-01-10 06:33:58,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 124 transitions, 909 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-01-10 06:33:58,235 INFO L231 Difference]: Finished difference. Result has 87 places, 52 transitions, 427 flow [2025-01-10 06:33:58,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=427, PETRI_PLACES=87, PETRI_TRANSITIONS=52} [2025-01-10 06:33:58,236 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2025-01-10 06:33:58,236 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 52 transitions, 427 flow [2025-01-10 06:33:58,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2025-01-10 06:33:58,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:58,237 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:58,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 06:33:58,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-10 06:33:58,438 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:58,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:58,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1666394388, now seen corresponding path program 1 times [2025-01-10 06:33:58,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:58,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505775192] [2025-01-10 06:33:58,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:58,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:58,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-10 06:33:58,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 06:33:58,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:58,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:58,548 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:58,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:58,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505775192] [2025-01-10 06:33:58,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505775192] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:33:58,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807179483] [2025-01-10 06:33:58,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:33:58,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:58,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:58,551 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:33:58,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 06:33:58,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-10 06:33:58,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 06:33:58,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:33:58,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:58,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:33:58,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:33:58,641 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:58,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:33:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:58,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807179483] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:33:58,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:33:58,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-01-10 06:33:58,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313309427] [2025-01-10 06:33:58,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:33:58,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 06:33:58,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:58,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 06:33:58,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-01-10 06:33:58,745 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:58,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 52 transitions, 427 flow. Second operand has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2025-01-10 06:33:58,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:58,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:58,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:33:59,161 INFO L124 PetriNetUnfolderBase]: 1422/3158 cut-off events. [2025-01-10 06:33:59,161 INFO L125 PetriNetUnfolderBase]: For 11455/11481 co-relation queries the response was YES. [2025-01-10 06:33:59,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10126 conditions, 3158 events. 1422/3158 cut-off events. For 11455/11481 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 19018 event pairs, 71 based on Foata normal form. 116/3255 useless extension candidates. Maximal degree in co-relation 10087. Up to 389 conditions per place. [2025-01-10 06:33:59,176 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 92 selfloop transitions, 24 changer transitions 25/153 dead transitions. [2025-01-10 06:33:59,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 153 transitions, 1222 flow [2025-01-10 06:33:59,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:33:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:33:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 336 transitions. [2025-01-10 06:33:59,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-01-10 06:33:59,178 INFO L175 Difference]: Start difference. First operand has 87 places, 52 transitions, 427 flow. Second operand 15 states and 336 transitions. [2025-01-10 06:33:59,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 153 transitions, 1222 flow [2025-01-10 06:33:59,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 1209 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-01-10 06:33:59,222 INFO L231 Difference]: Finished difference. Result has 105 places, 60 transitions, 578 flow [2025-01-10 06:33:59,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=578, PETRI_PLACES=105, PETRI_TRANSITIONS=60} [2025-01-10 06:33:59,223 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2025-01-10 06:33:59,223 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 60 transitions, 578 flow [2025-01-10 06:33:59,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2025-01-10 06:33:59,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:33:59,223 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:33:59,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 06:33:59,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-10 06:33:59,424 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:33:59,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:33:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1059982752, now seen corresponding path program 2 times [2025-01-10 06:33:59,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:33:59,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445761300] [2025-01-10 06:33:59,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:33:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:33:59,434 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-01-10 06:33:59,445 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-01-10 06:33:59,447 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:33:59,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:59,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:33:59,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445761300] [2025-01-10 06:33:59,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445761300] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:33:59,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587965208] [2025-01-10 06:33:59,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:33:59,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:33:59,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:33:59,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:33:59,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 06:33:59,650 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-01-10 06:33:59,667 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-01-10 06:33:59,667 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:33:59,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:33:59,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 06:33:59,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:33:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:59,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:33:59,956 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:33:59,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587965208] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:33:59,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:33:59,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2025-01-10 06:33:59,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362477089] [2025-01-10 06:33:59,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:33:59,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-10 06:33:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:33:59,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-10 06:33:59,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2025-01-10 06:33:59,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:33:59,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 60 transitions, 578 flow. Second operand has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2025-01-10 06:33:59,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:33:59,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:33:59,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:00,987 INFO L124 PetriNetUnfolderBase]: 2412/5356 cut-off events. [2025-01-10 06:34:00,987 INFO L125 PetriNetUnfolderBase]: For 28187/28208 co-relation queries the response was YES. [2025-01-10 06:34:01,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17421 conditions, 5356 events. 2412/5356 cut-off events. For 28187/28208 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31800 event pairs, 35 based on Foata normal form. 219/5566 useless extension candidates. Maximal degree in co-relation 17374. Up to 709 conditions per place. [2025-01-10 06:34:01,014 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 158 selfloop transitions, 41 changer transitions 49/260 dead transitions. [2025-01-10 06:34:01,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 260 transitions, 2117 flow [2025-01-10 06:34:01,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-10 06:34:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-01-10 06:34:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 627 transitions. [2025-01-10 06:34:01,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6997767857142857 [2025-01-10 06:34:01,016 INFO L175 Difference]: Start difference. First operand has 105 places, 60 transitions, 578 flow. Second operand 28 states and 627 transitions. [2025-01-10 06:34:01,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 260 transitions, 2117 flow [2025-01-10 06:34:01,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 260 transitions, 2037 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-01-10 06:34:01,043 INFO L231 Difference]: Finished difference. Result has 139 places, 76 transitions, 840 flow [2025-01-10 06:34:01,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=840, PETRI_PLACES=139, PETRI_TRANSITIONS=76} [2025-01-10 06:34:01,043 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2025-01-10 06:34:01,043 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 76 transitions, 840 flow [2025-01-10 06:34:01,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2025-01-10 06:34:01,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:01,044 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:01,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 06:34:01,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-10 06:34:01,245 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:01,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:01,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1950256372, now seen corresponding path program 2 times [2025-01-10 06:34:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:01,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180979465] [2025-01-10 06:34:01,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:34:01,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:01,258 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-01-10 06:34:01,278 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 06:34:01,278 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:34:01,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:01,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:01,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180979465] [2025-01-10 06:34:01,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180979465] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:01,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466624000] [2025-01-10 06:34:01,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:34:01,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:01,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:01,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:34:01,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 06:34:01,741 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-01-10 06:34:01,770 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 06:34:01,770 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:34:01,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:01,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-10 06:34:01,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:34:02,215 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:34:02,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466624000] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:02,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:34:02,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 46 [2025-01-10 06:34:02,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713786238] [2025-01-10 06:34:02,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:02,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-10 06:34:02,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:02,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-10 06:34:02,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2025-01-10 06:34:02,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:34:02,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 76 transitions, 840 flow. Second operand has 23 states, 23 states have (on average 13.130434782608695) internal successors, (302), 23 states have internal predecessors, (302), 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) [2025-01-10 06:34:02,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:02,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:34:02,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:05,474 INFO L124 PetriNetUnfolderBase]: 15078/26727 cut-off events. [2025-01-10 06:34:05,474 INFO L125 PetriNetUnfolderBase]: For 69021/69021 co-relation queries the response was YES. [2025-01-10 06:34:05,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88125 conditions, 26727 events. 15078/26727 cut-off events. For 69021/69021 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 202359 event pairs, 265 based on Foata normal form. 368/27085 useless extension candidates. Maximal degree in co-relation 88075. Up to 4115 conditions per place. [2025-01-10 06:34:05,646 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 591/591 dead transitions. [2025-01-10 06:34:05,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 591 transitions, 6811 flow [2025-01-10 06:34:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-10 06:34:05,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-01-10 06:34:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 460 transitions. [2025-01-10 06:34:05,653 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-01-10 06:34:05,653 INFO L175 Difference]: Start difference. First operand has 139 places, 76 transitions, 840 flow. Second operand 23 states and 460 transitions. [2025-01-10 06:34:05,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 591 transitions, 6811 flow [2025-01-10 06:34:05,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 591 transitions, 4980 flow, removed 22 selfloop flow, removed 48 redundant places. [2025-01-10 06:34:05,867 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2025-01-10 06:34:05,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2025-01-10 06:34:05,892 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 73 predicate places. [2025-01-10 06:34:05,893 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2025-01-10 06:34:05,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.130434782608695) internal successors, (302), 23 states have internal predecessors, (302), 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) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-01-10 06:34:05,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-01-10 06:34:05,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-01-10 06:34:05,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 06:34:06,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:06,102 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:06,107 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:34:06,107 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:34:06,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:06 BasicIcfg [2025-01-10 06:34:06,112 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:34:06,112 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:34:06,112 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:34:06,112 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:34:06,113 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:33:53" (3/4) ... [2025-01-10 06:34:06,114 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:34:06,116 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2025-01-10 06:34:06,116 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2025-01-10 06:34:06,119 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-01-10 06:34:06,119 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-10 06:34:06,119 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 06:34:06,120 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:34:06,172 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:34:06,172 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:34:06,172 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:34:06,173 INFO L158 Benchmark]: Toolchain (without parser) took 13737.30ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 104.7MB in the beginning and 227.1MB in the end (delta: -122.4MB). Peak memory consumption was 423.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:06,173 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:06,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.58ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 84.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:34:06,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.29ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:06,176 INFO L158 Benchmark]: Boogie Preprocessor took 28.15ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 82.2MB in the end (delta: 982.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:06,176 INFO L158 Benchmark]: RCFGBuilder took 307.18ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 61.6MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:34:06,176 INFO L158 Benchmark]: TraceAbstraction took 12946.94ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 61.6MB in the beginning and 232.5MB in the end (delta: -170.9MB). Peak memory consumption was 658.3MB. Max. memory is 16.1GB. [2025-01-10 06:34:06,177 INFO L158 Benchmark]: Witness Printer took 59.57ms. Allocated memory is still 687.9MB. Free memory was 232.5MB in the beginning and 227.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:06,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.58ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 84.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.29ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.15ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 82.2MB in the end (delta: 982.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.18ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 61.6MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12946.94ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 61.6MB in the beginning and 232.5MB in the end (delta: -170.9MB). Peak memory consumption was 658.3MB. Max. memory is 16.1GB. * Witness Printer took 59.57ms. Allocated memory is still 687.9MB. Free memory was 232.5MB in the beginning and 227.1MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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 5 procedures, 55 locations, 18 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: 12.9s, OverallIterations: 19, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2110 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2046 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3190 IncrementalHoareTripleChecker+Invalid, 3248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 20 mSDtfsCounter, 3190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 569 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=840occurred in iteration=18, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 780 ConstructedInterpolants, 0 QuantifiedInterpolants, 2240 SizeOfPredicates, 37 NumberOfNonLiveVariables, 998 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 30 InterpolantComputations, 15 PerfectInterpolantSequences, 430/1375 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:34:06,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE